Chelating-Assisted Green Synthesis of TiO2Nanoparticles from Mangosteen Pericarp for Defect Control and DSSC Performance Nofrijon Sofyan, Muhammad, Fiona Angellinnov, Mouna M’rad, Aga Ridhova, Akhmad H. Yuwono, Donanta Dhaneswara, Brian Yuliarto, Veinardi Suendo, Lydia H. Wong ACS Omega, 2026 This work aims to examine the properties of titanium dioxide nanoparticles (TiO2 NPs) synthesized through a sustainable, chelating-assisted green process using mangosteen (Garcinia mangostana L.) pericarp extracts for use as a semiconductor layer in dye-sensitized solar cells (DSSCs). X-ray diffraction (XRD) characterization revealed that the TiO2 NPs have a tetragonal crystalline structure and are pure anatase. The optical characteristics examined using ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS) showed a reduced bandgap energy, from 3.22 to 3.20 eV, with the use of mangosteen pericarp extract. The same trend is observed with the use of chelating agent concentration, decreasing from 3.20 to 3.10 eV at 30%, then increasing slightly to 3.14 eV at 50%. The TiO2 NPs were further used as a semiconductor layer in a DSSC device sensitized with the commercial dye N719 and a natural dye derived from Malabar spinach (Basella rubra L.) fruit extract. The highest efficiency of 2.34% was achieved with a DSSC device fabricated from green-synthesized TiO2 NPs using mangosteen pericarp extracted with 50% acetylacetone (AcAc) and sensitized with N719, slightly lower than that of commercial TiO2 P25 (2.65%). The efficiencies of the same materials sensitized with natural dyes from Malabar spinach fruit extract are 0.69% and 1.01%, respectively. These results demonstrate the potential of using mangosteen pericarp waste and natural dyes for the sustainable, cost-effective fabrication of DSSCs.
Green Synthesis of TiO2 Nanoparticles via Graphene Oxide-Doped Malabar Spinach Leaf Extract for Perovskite Solar Cells Nofrijon Sofyan, Ichsan Pandu Wicaksono, Fiona Angellinnov, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara Baghdad Science Journal, 2026 This study investigates a green synthesis route for titanium dioxide (TiO2) nanoparticles (NPs) using Malabar spinach (Basella rubra) leaf extract, with graphene oxide (GO) as a dopant, for application as an electron transport layer in perovskite solar cells (PSCs). The synthesized TiO2 NPs were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), and field emission scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (FESEM/EDX). XRD results confirmed the presence of a pure anatase phase with a smaller crystallite size than that of commercial TiO2, while EDX analysis verified the successful synthesis through elemental analysis. FESEM imaging revealed a mixture of rugged and uniformly distributed nanoparticles. Optical studies showed a reduced bandgap energy (3.0400 eV) compared to commercial TiO2 (3.2000 eV), indicating improved light absorption potential. The integration of GO suggestively enhanced photovoltaic performance, with the highest power conversion efficiency (0.2467%) observed in the sample synthesized using distilled water, leaf extract, and GO—an order of magnitude higher than commercial TiO2 (0.0259%). However, performance varied notably with different synthesis media, suggesting that solvent-specific interactions play a critical role in determining device efficiency. These findings demonstrate the viability of eco-friendly synthesis in developing functional nanomaterials and highlight the synergistic benefits of combining plant-based reductants and GO doping. The approach offers a promising pathway toward more sustainable and cost-effective PSC technologies; however, optimizing plant extract composition and nanoparticle morphology remains essential.
Oil Palm (Elaeis Guineensis) Leaf Extract-Mediated Green Synthesis of TiO2 Nanoparticles and Their Optical Characteristics Nofrijon Sofyan, Andriayani, Yetria Rilda, Fiona Angellinnov, Mouna M'rad, Muhammad, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara Baghdad Science Journal, 2026 This work aims to explore the characteristics of TiO2 NPs green-synthesized via an environmentally friendly method using oil palm (Elaeis guineensis) leaf extract as a green medium and capping agent by utilizing titanium tetra isopropoxide (TTIP) as precursor. The oil palm leaves were extracted with different solvent concentration variations. The natural extract was characterized using liquid chromatography-mass spectroscopy (LC-MS) and infrared spectroscopy for active chemical contents and functional groups. The obtained TiO2 NPs were also characterized using infrared spectroscopy (FTIR) for the functional groups, ultraviolet spectroscopy (UV-DRS) for the optical characteristics, and X-ray diffraction (XRD) for the phase formation and crystallographic properties. More sophisticated equipment of field emission scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (FESEM/EDX) and Raman spectroscopy were employed to reveal the characteristics of the obtained TiO2 NPs. The results from X-ray diffraction showed that the obtained TiO2 NPs are in pure anatase crystal structure. There is also a trend that the bandgap energy of TiO2 NPs reduces with the use of oil palm leaves extract as a green medium. It is confirmed that the green medium affects the optical characteristics of the synthesized TiO2 NPs by reducing the bandgap energy from 3.2 eV for commercial and the one synthesized using ethanol only to 3.12 eV by using the green medium of oil palm leaves extract. These findings will provide insight for more novel, environmentally friendly nanomaterials synthesis methods.
Sustainable synthesis of TiO2 nanoparticles from gambier leaf extract for enhanced DSSC photocurrent response Nofrijon Sofyan, Yetria Rilda, Andriayani, Fiona Angellinnov, Mouna M'rad, Muhammad, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara Results in Materials, 2025 Titanium dioxide nanoparticles (TiO 2 NPs) are widely employed as semiconductor materials in dye-sensitized solar cells (DSSCs) photoanodes. However, conventional chemical and physical synthesis methods to synthesize TiO 2 NPs raise environmental concerns. This study presents an eco-friendly synthesis route for TiO 2 NPs using gambier ( Uncaria gambir ) leaf extract as a natural capping agent coupled with the use of a chelating agent. The phytochemical composition of the extract was characterized using liquid chromatography-mass spectrometry (LC-MS) and Fourier transform infrared spectroscopy (FTIR). The optical, structural, and morphological properties of the synthesized NPs were investigated using UV–Vis diffuse reflectance spectroscopy (UV-DRS), X-ray diffraction (XRD), field emission electron microscopy coupled with energy dispersive X-ray spectroscopy (FESEM/EDS), Raman spectroscopy, and high-resolution transmission electron microscopy coupled with selected area diffraction (HRTEM/SAED). The green-synthesized TiO 2 NPs exhibited a reduced bandgap energy of 3.04 eV compared to 3.2 eV for commercial and ethanol-synthesized counterparts. While acetylacetone as a chelating agent showed mixed effects, its 30 % concentration yielded a bandgap of 3.07 eV. Remarkably, TiO 2 NPs synthesized with gambier extract and 50 % acetylacetone achieved the highest DSSC efficiency of 4.40 %, significantly outperforming commercial TiO 2 (2.83 %). These findings demonstrate the potential of plant-based synthesis in advancing sustainable nanomaterials for photovoltaic applications. • Gambier leaf extract-mediated green synthesis of TiO 2 NPs for future sustainability. • Eco-friendly green synthesis of TiO 2 NPs in gambier leaf extract for DSSC application. • Photoanode performance improvement of gambier leaf extract green synthesis of TiO 2 NPs.
Jasmine flowers extract mediated green synthesis of tio₂ nanoparticles and their photocurrent characteristics for dye-sensitized solar cell application Nofrijon Sofyan, Muhammad, Aga Ridhova, Fiona Angellinnov, Mouna M’rad, Akhmad Herman Yuwono, Donanta Dhaneswara, Bambang Priyono, Jeffrey W. Fergus Materials for Renewable and Sustainable Energy, 2025 In this work, titanium dioxide nanoparticles (TiO₂ NPs) were green-synthesized using jasmine (Jasminum sambac) flower extracts as the medium with different solvent variation concentrations. The green synthesis was carried out using titanium isopropoxide (TTIP) as a precursor via the sol-gel method. The obtained TiO₂ NPs were characterized using infrared spectroscopy (FTIR), ultraviolet spectroscopy (UV-DRS), X-ray diffraction (XRD), field emission scanning electron microscopy/energy dispersive X-ray spectroscopy (FESEM/EDX), Raman spectroscopy, and high-resolution transmission electron microscopy/selected area diffraction (HRTEM/SAED). The characterization revealed that the green-synthesized TiO₂ NPs possess a pure tetragonal anatase phase, which belongs to the space group I41/amd. Dye-sensitized solar cell devices were further fabricated using the obtained TiO₂ NPs and sensitized with the commercial dye N719 and a kesumba (Bixa orellana) seed extract as an alternative, inexpensive, yet sustainable natural dye. The highest efficiency of 2.52% was obtained from TiO₂ NPs sensitized using commercial dye N719 and synthesized using jasmine flower extract containing 30% acetylacetone, followed by one containing 50% acetylacetone, which is higher than that of commercial TiO₂ (0.80%). The same materials sensitized using kesumba seed extract resulted in efficiency of 0.22%, 0.08%, and 1.22%, respectively. These findings offer insight and pave the way for more novel, environmentally friendly methods for developing green-synthesizing nanomaterials and natural dye derivatives, ultimately contributing to a sustainable future.
Exploration of rice husk ash as a green corrosion inhibitor immersed in NH4Cl 7.5 % solution Agus Paul Setiawan Kaban, Johny Wahyuadi Soedarsono, Mochammad Syaiful Anwar, Wahyu Mayangsari, Ahmad Maksum, Aga Ridhova, Rini Riastuti, Dedy Iskandar, Ayende Heliyon, 2024 The study reports the development of a liquid smoke solution of rice husk ash (RHA) as a green corrosion inhibitor in NH 4 Cl solution in approaching corrosion protection for refinery facilities. The recent utilization of RHA has a partial solution to address the possible chemical to form a filming layer to disconnect bare metal and their environment. This work prepared the RHA solution by condensing the RHA vapor before adding it to various concentrations. The corrosion test of potentiodynamic and electrochemicals intends to discover the inhibitor's corrosion resistance before examining the electronic transition corresponding to the contribution of several functional groups using Ultraviolet Visible (UV-Vis) and Fourier-Transform Infrared Spectroscopy (FTIR). Surface evaluation intends to unveil the nature of the corrosion by utilizing the Scanning Electronic and Atomic Force Microscope. The corrosion test result shows the depression of corrosion rate to 0.120 mmpy with high efficiency beyond 96% in the addition of 7.5 ppm RHA inhibitor. The greater Nyquist semicircle diameter at high concentrations increases the adsorption of the RHA on the surface of C1018. The electronic transition of n–π* and π –π* shows an extensive contribution of C=C, C=O, and –OH based on the UV-Vis and FTIR test. The formation of a complex compound of Fe-(NH 4 Cl-RHA) n blocks the corrosion active sites to reduce the corrosion. This study paves the way for using RHA as an organic compound under NH 4 Cl conditions, such as in a refinery process facility.
Graphene oxide doping in tropical almond (terminalia catappa L.) fruits extract mediated green synthesis of TiO2 nanoparticles for improved DSSC power conversion efficiency Nofrijon Sofyan, Alry Mochtar Jamil, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara, Jeffrey W. Fergus Heliyon, 2024 The power conversion efficiency (PCE) of a dye-sensitized solar cell (DSSC) device depends on its semiconductor characteristics. Titanium dioxide (TiO 2 ) nanoparticles are a semiconductor material commonly used in the DSSC device whose characteristics depend on the synthesis process. There are many routes to synthesize TiO 2 , however, they typically involve hazardous approaches, which may cause risk to the environment. Green synthesis is an environmentally friendly alternative method using ecological solvents that eliminates toxic waste and reduces energy consumption. In this work, tropical almond ( Terminalia catappa L .) was used as a natural capping agent in the green synthesis to control the growth of TiO 2 . In addition, graphene oxide (GO) was used as a dopant to increase the performance of DSSC device. The results are convincing, in which the addition of 0.0017% GO doping in tropical almond extract mediated green synthesis of TiO 2 improved the PCE from 0.85% to 1.72%. These results suggest that GO-modified TiO 2 nanoparticles green synthesized using tropical almond extract have great potential in the fabrication of DSSC devices with good PCE, low cost, and low environmental impact.
Fabrication of ZnO nanoparticles with addition of Cu and Sn for photocatalytic and antibacterial application Vinda Puspasari, Fauzaan Barreza Radinka Sudrajat, Aga Ridhova, Lina Jaya Diguna, Kartika Dyah Palupi, et al. Aip Conference Proceedings, 2024 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Vinda Puspasari, Fauzaan Barreza Radinka Sudrajat, Aga Ridhova, Lina Jaya Diguna, Kartika Dyah Palupi, Muhamad Ikhlasul Amal; Fabrication of ZnO nanoparticles with addition of Cu and Sn for photocatalytic and antibacterial application. AIP Conf. Proc. 28 February 2024; 3003 (1): 020068. https://doi.org/10.1063/5.0186152 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
A Novel Method in Valorization of Ferronickel Slag as Nano Silica and Heavy Metals Amphoteric Adsorbent by Hydrothermal Process W Mayangsari, A Ridhova, SS Bila, A Jefry, KL Akmal, E Febriana, ... Journal of Sustainable Metallurgy 12 (3), 2598-2610 , 2026 2026
Chelating-Assisted Green Synthesis of TiO 2 Nanoparticles from Mangosteen Pericarp for Defect Control and DSSC Performance N Sofyan, Muhammad, F Angellinnov, M M’rad, A Ridhova, AH Yuwono, ... ACS omega 11 (10), 16625-16645 , 2026 2026
Oil Palm ( Elaeis Guineensis ) Leaf Extract-Mediated Green Synthesis of TiO 2 Nanoparticles and Their Optical Characteristics N Sofyan, Y Rilda, F Angellinnov, M M'rad, A Ridhova, AH Yuwono, ... Baghdad Science Journal 23 (1), 71-83 , 2026 2026 Citations: 1
Green Synthesis of TiO 2 Nanoparticles via Graphene Oxide-Doped Malabar Spinach Leaf Extract for Perovskite Solar Cells N Sofyan, IP Wicaksono, F Angellinnov, A Ridhova, AH Yuwono, ... Baghdad Science Journal 23 (1), 16-29 , 2026 2026
Tin Powder Preparation by Electrodeposition of Tin Chloride in a Choline Chloride-Ethylene Glycol Deep Eutectic Solvent R Subagja, A Ridhova, BR Elvira, AY Akbar, NI Ciptasari, I Setiawan, ... Applied Science and Engineering Progress 18 (4), 7727-7727 , 2025 2025
Sustainable Synthesis of TiO2 Nanoparticles from Gambier Leaf Extract for Enhanced DSSC Photocurrent Response N Sofyan, Y Rilda, F Angellinnov, M M'rad, A Ridhova, AH Yuwono, ... Results in Materials, 100752 , 2025 2025 Citations: 4
Jasmine flowers extract mediated green synthesis of tio₂ nanoparticles and their photocurrent characteristics for dye-sensitized solar cell application N Sofyan, Muhammad, A Ridhova, F Angellinnov, M M’rad, AH Yuwono, ... Materials for Renewable and Sustainable Energy 14 (2), 46 , 2025 2025 Citations: 6
Exploring Photocurrent Characteristics of Tio2 Nanoparticles Green Synthesized Using Gambier Leaves Extracts for Dye-Sensitized Solar Cell Application N Sofyan, Y Rilda, F Angellinnov, M M'rad, M Muhammad, A Ridhova, ... Fiona and M'rad, Mouna and Muhammad, Muhammad and Ridhova, Aga and Yuwono … , 2025 2025 Citations: 1
Exploration of rice husk ash as a green corrosion inhibitor immersed in NH4Cl 7.5% solution APS Kaban, JW Soedarsono, MS Anwar, W Mayangsari, A Maksum, ... Heliyon 10 (9) , 2024 2024 Citations: 5
Graphene oxide doping in tropical almond (terminalia catappa L.) fruits extract mediated green synthesis of TiO2 nanoparticles for improved DSSC power conversion efficiency N Sofyan, AM Jamil, A Ridhova, AH Yuwono, D Dhaneswara, JW Fergus Heliyon 10 (8) , 2024 2024 Citations: 13
Synthesis of silica precipitates from ferronickel slag using water leaching with alkali fusion treatment AB Prasetyo, W Mayangsari, E Febriana, A Ridhova, E Sulistyono, ... AIP Conference Proceedings 3003 (1), 020047 , 2024 2024 Citations: 3
Dissolution of ferronickel slag in the hydrothermal process using NaOH solution followed by water leaching: The effect of particle size W Mayangsari, DA Nurkhasanah, A Ridhova, AB Prasetyo, E Febriana, ... AIP conference proceedings 3003 (1), 020110 , 2024 2024 Citations: 3
Fabrication of ZnO nanoparticles with addition of Cu and Sn for photocatalytic and antibacterial application V Puspasari, FBR Sudrajat, A Ridhova, LJ Diguna, KD Palupi, MI Amal AIP Conference Proceedings 3003 (1), 020068 , 2024 2024 Citations: 1
Synthesis of superhydrophobic carbon sphere by pyrolysis of heavy oil fraction of coal tar/ferrocene mixture and their magnetic nanostructure YN Thaha, A Ridhova, AY Akbar, R Hakim, NI Ciptasari, N Darsono, ... Diamond and Related Materials 142, 110796 , 2024 2024 Citations: 4
Photocurrent Characteristics of Tio₂ Nanoparticles Green Synthesized Using Mangosteen Pericarps Waste Extract for Dye-Sensitized Solar Cell Application N Sofyan, M Muhammad, F Angellinnov, M M'rad, A Ridhova, AH Yuwono, ... Available at SSRN 5061564 , 2024 2024
An Inkjet-printed Graphene Oxide–poly (3, 4-ethylenedioxythiophene) poly (styrene sulfonate) Electrode for Nitrite Detection in Water BR Putra, W Anindya, M Rafi, I Kartika, YN Thaha, A Ridhova, ... Makara Journal of Science 27 (4), 9 , 2023 2023
Effect of cathode material on the morphology and osseointegration of TiO2 nanotube arrays by electrochemical anodization technique IM Ulfah, DA Fitriani, SA Azahra, AU Saudi, M Kozin, R Hanafi, P Puranto, ... Surface and Coatings Technology 470, 129836 , 2023 2023 Citations: 12
Insight on corrosion prevention of C1018 in 1.0 M hydrochloric acid using liquid smoke of rice husk ash: electrochemical, surface analysis, and deep learning studies APS Kaban, JW Soedarsono, W Mayangsari, MS Anwar, A Maksum, ... Coatings 13 (1), 136 , 2023 2023 Citations: 9
Insight on Corrosion Prevention of C1018 in 1.0 M Hydrochloric Acid Using Liquid Smoke of Rice Husk Ash: Electrochemical, Surface Analysis, and Deep Learning Studies. Coatings … APS Kaban, JW Soedarsono, W Mayangsari, MS Anwar, A Maksum, ... 2023 Citations: 6
Influence of Al and Cu doping on the structure, morphology, and optical properties of ZnO thin film A Tjahjono, A Ridhova, PYD Maulida, D Aryanto Indonesian Journal of Chemistry 23 (1) , 2023 2023 Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
ZnO-based antimicrobial coatings for biomedical applications V Puspasari, A Ridhova, A Hermawan, MI Amal, MM Khan Bioprocess and Biosystems Engineering 45 (9), 1421-1445 , 2022 2022 Citations: 205
Extract sarampa wood (Xylocarpus Moluccensis) as an eco-friendly corrosion inhibitor for mild steel in HCl 1M S Prifiharni, G Mashanafie, G Priyotomo, A Royani, A Ridhova, B Elya, ... Journal of the Indian Chemical Society 99 (7), 100520 , 2022 2022 Citations: 67
Preparation of anatase TiO2 nanoparticles using low hydrothermal temperature for dye-sensitized solar cell N Sofyan, A Ridhova, AH Yuwono, A Udhiarto IOP Conference Series: Materials Science and Engineering 316 (1), 012055 , 2018 2018 Citations: 43
Development of white tea extract as green corrosion inhibitor in mild steel under 1 M hydrochloric acid solution APS Kaban, A Ridhova, G Priyotomo, B Elya, A Maksum, Y Sadeli, ... Eastern-European Journal of Enterprise Technologies 2 (6 (110)), 6-20 , 2021 2021 Citations: 40
Fabrication of solar cells with TiO2 nanoparticles sensitized using natural dye extracted from mangosteen pericarps N Sofyan, A Ridhova, AH Yuwono, A Udhiarto International Journal of Technology 8 (7), 1229-1238 , 2017 2017 Citations: 29
Selective non-enzymatic uric acid sensing in the presence of dopamine: electropolymerized poly-pyrrole modified with a reduced graphene oxide/PEDOT: PSS composite BR Putra, U Nisa, R Heryanto, M Khalil, F Khoerunnisa, A Ridhova, ... Analyst 147 (23), 5334-5346 , 2022 2022 Citations: 28
Synthesis of TiO2 nanoparticles at low hydrothermal temperature and its performance for DSSC sensitized using natural dye extracted from Melastoma malabathricum L. seeds N Sofyan, A Ridhova, AH Yuwono, A Udhiarto, JW Fergus International Journal of Energy Research 43 (11), 5959-5968 , 2019 2019 Citations: 26
Visible light absorption and photosensitizing characteristics of natural yellow 3 extracted from Curcuma Longa L. for Dye-Sensitized solar cell N Sofyan, FW Situmorang, A Ridhova, AH Yuwono, A Udhiarto IOP Conference Series: Earth and Environmental Science 105 (1), 012073 , 2018 2018 Citations: 26
Graphene oxide doping in tropical almond (terminalia catappa L.) fruits extract mediated green synthesis of TiO2 nanoparticles for improved DSSC power conversion efficiency N Sofyan, AM Jamil, A Ridhova, AH Yuwono, D Dhaneswara, JW Fergus Heliyon 10 (8) , 2024 2024 Citations: 13
Effect of cathode material on the morphology and osseointegration of TiO2 nanotube arrays by electrochemical anodization technique IM Ulfah, DA Fitriani, SA Azahra, AU Saudi, M Kozin, R Hanafi, P Puranto, ... Surface and Coatings Technology 470, 129836 , 2023 2023 Citations: 12
Effect of NaCl Addition on Nano Rosette Tio2 Crystal Growth during Hydrothermal Deposition N Sofyan, A Ridhova, AH Yuwono, MC Sianturi International Journal of Technology 10 (6), 1235-1242 , 2019 2019 Citations: 11
Insight on corrosion prevention of C1018 in 1.0 M hydrochloric acid using liquid smoke of rice husk ash: electrochemical, surface analysis, and deep learning studies APS Kaban, JW Soedarsono, W Mayangsari, MS Anwar, A Maksum, ... Coatings 13 (1), 136 , 2023 2023 Citations: 9
Unraveling the study of liquid smoke from rice husks as a green corrosion inhibitor in mild steel under 1 M HCl K Agus Paul Setiawan, W Mayangsari, M Anwar, A Maksum, ... Eastern-European Journal of Enterprise Technologies 5 (6), 119 , 2022 2022 Citations: 9
Jasmine flowers extract mediated green synthesis of tio₂ nanoparticles and their photocurrent characteristics for dye-sensitized solar cell application N Sofyan, Muhammad, A Ridhova, F Angellinnov, M M’rad, AH Yuwono, ... Materials for Renewable and Sustainable Energy 14 (2), 46 , 2025 2025 Citations: 6
Insight on Corrosion Prevention of C1018 in 1.0 M Hydrochloric Acid Using Liquid Smoke of Rice Husk Ash: Electrochemical, Surface Analysis, and Deep Learning Studies. Coatings … APS Kaban, JW Soedarsono, W Mayangsari, MS Anwar, A Maksum, ... 2023 Citations: 6
Visible light absorption and photo-sensitizing characteristics of natural dye extracted from Mangosteen pericarps using different solvents N Sofyan, A Ridhova, KRO Pramono, AH Yuwono, A Udhiarto International Journal on Advanced Science, Engineering and Information … , 2018 2018 Citations: 6
Exploration of rice husk ash as a green corrosion inhibitor immersed in NH4Cl 7.5% solution APS Kaban, JW Soedarsono, MS Anwar, W Mayangsari, A Maksum, ... Heliyon 10 (9) , 2024 2024 Citations: 5
Characteristics of carbon pyrolyzed from table sugar and sucrose for Pt-less DSSC counter electrode N Sofyan, M Muhammad, A Ridhova, AH Yuwono, A Udhiarto Int. J. Technol 9 (2), 372-379 , 2018 2018 Citations: 5
Characteristics of PANi/rGO nanocomposite as protective coating and catalyst in dye-sensitized solar cell counter electrode deposited on AISI 1086 steel substrate NBI Sofyan, RA Nugraha, A Ridhova, AH Yuwono, A Udhiarto International Journal of Engineering, Transactions A: Basics 31 (10), 1741-1748 , 2018 2018 Citations: 5
Sustainable Synthesis of TiO2 Nanoparticles from Gambier Leaf Extract for Enhanced DSSC Photocurrent Response N Sofyan, Y Rilda, F Angellinnov, M M'rad, A Ridhova, AH Yuwono, ... Results in Materials, 100752 , 2025 2025 Citations: 4
