Design and synthesis of advanced engineered nanomaterials for photovoltaic, hydrogen generation, CO2 reduction, water purification, photo-/electro-catalysis and biomedical applications.
Hybrid TiN - MXene Photoanodes Drive Efficient Photoelectrochemical Water Splitting Parul Bansal, Gurpreet Singh Selopal, Kokilavani Shanmugasundaram, Hadis Zarrin, Federico Rosei Solar Rrl, 2026 We developed quantum dot (QD)‐sensitized hybrid TiO 2 nanocomposite photoanodes consisting of titanium‐based MXene (Ti 3 C 2 T x ) and titanium nitride (TiN) to promote synergy between the transport efficiency of MXenes and the plasmonic properties of TiN nanoparticles (NPs), toward enhancing the performance of photoelectrochemical (PEC) water splitting. MXenes sheets were synthesized at room temperature through delamination of an aluminum layer of the MAX phase of titanium aluminum carbide (Ti 3 AlC 2 ), and subsequently, nano‐sized dot‐like TiN NPs were incorporated through sonication and hydrothermal reaction. The PEC system based on the optimized TiO 2 ‐MXene‐TiN (MXene:TiN 1:4 wt%) hybrid network sensitized with CdS/CdSe/ZnS QDs yields a high photocurrent density of 15.80 mA cm −2 (at 1.0 V vs. the reversible hydrogen electrode [RHE]) under 1 sun illumination (AM 1.5G, 100 mW cm −2 ), which is almost double (~119%) as compared to the control TiO 2 /QDs device (7.20 mA cm −2 ). This significant enhancement in current density is attributed to the plasmonic effect of TiN NPs, improved charge carrier mobility and reduced recombination losses arising from the incorporated MXene sheets. This improvement in charge transport directly contributes to higher device efficiency, as demonstrated by faster transient voltage decay rates and prolonged carrier lifetimes in our measurements.
Alloyed shell engineered heavy-metal-free quantum dots for efficient photoelectrochemical hydrogen generation U Sohail, S Kokilavani, S Madhu, MK Chhina, KS Grewal, AA Farooque, ... Chemical Engineering Journal, 177139 , 2026 2026
Advancing sustainable agriculture in Atlantic Canada through HYDRA-SE: A hybrid decision and regression stacked ensemble for yield prediction A Kaur, R Malekian, GS Randhawa, AA Farooque, EH Garmdareh, ... Advanced Engineering Informatics 71, 104433 , 2026 2026 Citations: 1
Hybrid TiN‐MXene Photoanodes Drive Efficient Photoelectrochemical Water Splitting P Bansal, GS Selopal, K Shanmugasundaram, H Zarrin, F Rosei Solar RRL 10 (5), e202500820 , 2026 2026
Recent advances in agricultural and marine waste-derived carbon dots for clean energy technologies MK Chhina, S Singh, S Madhu, KS Grewal, AA Farooque, GS Selopal Carbon, 121444 , 2026 2026
The Application of Carbon Dots in Crops for Sustainable Agriculture X Li, L Jin, GS Selopal, F Rosei, J Li ChemistryEurope 4 (2), e202500224 , 2026 2026
Renewable hydrogen from seafood shell waste for long-term energy storage on islands V Kaura, MA Adesanya, GS Selopal, KS Grewal Energy Conversion and Management 345, 120331 , 2025 2025 Citations: 1
Sugar kelp application for sustainable potato production in Prince Edward Island: Impacts on soil, greenhouse gas emissions, and yield A Khan, R Malekian, TJ Esau, GS Selopal, KS Grewal Field Crops Research 333, 110068 , 2025 2025 Citations: 1
Synergistic effect of Cu: Zn-In-Se2 QDs/Fe3O4 hybrid mesoporous films optimization and magnetic fields for solar-driven wastewater purification S Madhu, U Sohail, SY Kim, G Abdelmageed, NY Doumon, GI Koleilat, ... Sustainable Materials and Technologies, e01745 , 2025 2025 Citations: 1
Recent progress in triboelectric nano-generators: Powering the future of smart agriculture S Singh, MK Chhina, T Esau, KS Grewal, AA Farooque, GS Selopal Nano Energy, 111502 , 2025 2025 Citations: 3
Unlocking durability and efficiency in perovskite solar cells via sulfur-based thiazoline engineered passivation G Abdelmageed, A El-Halaby, K Tantawy, AFG Leontowich, GS Selopal, ... Journal of Materials Science: Materials in Energy 1 (1), 4 , 2025 2025 Citations: 1
In-situ surface engineering of ternary eco-friendly QDs for enhanced photoelectrochemical hydrogen production S Kokilavani, GS Selopal, L Jin, F Vidal, F Rosei Chemical Engineering Journal, 169245 , 2025 2025 Citations: 2
Cutting-edge advances in W-based chalcogenides for efficient photocatalytic hydrogen evolution L Phor, M Afzal, V Meena, J Malik, SM Simon, GS Selopal, S Chahal Sustainable Materials and Technologies 45, e01514 , 2025 2025 Citations: 4
Eco‐Friendly Quantum Dots for Solar‐Driven H 2 Production: Structural Engineering to Performance Optimization U Sohail, S Kokilavani, KS Grewal, AA Farooque, GI Koleilat, GS Selopal EcoMat 7 (9), e70026 , 2025 2025 Citations: 3
Marine waste-assisted hybrid nano-fertilizers for controlled nutrient release MJ Khan, MK Chhina, S Jayakumar, KI Al-Murghrabi, KS Grewal, ... MRS Advances, 1-9 , 2025 2025
Carbon quantum dots: Synthesis via hydrothermal processing, doping strategies, integration with photocatalysts, and their application in photocatalytic hydrogen production Z Wang, R Changotra, M Dasog, GS Selopal, J Yang, QS He Sustainable Materials and Technologies 44, e01386 , 2025 2025 Citations: 44
Magnetic Field Enhanced Photoelectrochemical Water Splitting: Unravelling the Role of the TiO 2 Photoanode V Venkataraman, TK Johal, GS Selopal, D Yang, L Jin, F Vetrone, F Rosei 247th ECS Meeting (May 18-22, 2025) , 2025 2025
Textile wastewater treatment using ternary hybrid nanocomposites of hexagonal NiO with MWCNT/GO S Subramanyam, L Phor, A Singh, S Dahiya, GS Selopal, A Kumar, ... Journal of Water Process Engineering 71, 107149 , 2025 2025 Citations: 9
Harnessing the Synergetic Effects of Ag, Mn Dopants in Eco‐Friendly Ultraviolet Selective Quantum Dots for Luminescent Solar Concentrators L Jin, E Hamzehpoor, GS Selopal, J Liu, P Kumar, D Benetti, X Tong, ... Small Methods 9 (2), 2301695 , 2025 2025 Citations: 17
Advanced surface engineering and passivation strategies of quantum Dots for breaking efficiency barrier of clean energy technologies: a comprehensive review S Kokilavani, GS Selopal Adv Mater , 2025 2025 Citations: 7
Valorization and repurposing of seafood waste to next-generation carbon nanofertilizers R Javed, U Sharafat, A Rathnayake, L Galagedara, GS Selopal, ... Bioresource Technology 416, 131783 , 2025 2025 Citations: 18
MOST CITED SCHOLAR PUBLICATIONS
Core/shell quantum dots solar cells GS Selopal, H Zhao, ZM Wang, F Rosei Advanced Functional Materials 30 (13), 1908762 , 2020 2020 Citations: 295
Hybrid Carbon Nanotubes–TiO 2 Photoanodes for High Efficiency Dye-Sensitized Solar Cells KT Dembele, GS Selopal, C Soldano, R Nechache, JC Rimada, I Concina, ... The Journal of Physical Chemistry C 117 (28), 14510-14517 , 2013 2013 Citations: 181
Near‐infrared, heavy metal‐free colloidal “Giant” core/shell quantum dots X Tong, XT Kong, Y Zhou, F Navarro‐Pardo, GS Selopal, S Sun, ... Advanced Energy Materials 8 (2), 1701432 , 2018 2018 Citations: 157
Heavy metal-free, near-infrared colloidal quantum dots for efficient photoelectrochemical hydrogen generation X Tong, Y Zhou, L Jin, K Basu, R Adhikari, GS Selopal, H Zhao, S Sun, ... Nano Energy 31, 441-449 , 2017 2017 Citations: 149
Highly stable colloidal “giant” quantum dots sensitized solar cells GS Selopal, H Zhao, X Tong, D Benetti, F Navarro‐Pardo, Y Zhou, ... Advanced Functional Materials 27 (30), 1701468 , 2017 2017 Citations: 142
Metal-free organic dyes for TiO 2 and ZnO dye-sensitized solar cells GS Selopal, HP Wu, J Lu, YC Chang, M Wang, A Vomiero, I Concina, ... Scientific reports 6 (1), 18756 , 2016 2016 Citations: 102
Controlling photoinduced electron transfer from PbS@ CdS core@ shell quantum dots to metal oxide nanostructured thin films H Zhao, Z Fan, H Liang, GS Selopal, BA Gonfa, L Jin, A Soudi, D Cui, ... Nanoscale 6 (12), 7004-7011 , 2014 2014 Citations: 100
Graphene below the percolation threshold in TiO 2 for dye-sensitized solar cells KT Dembele, GS Selopal, R Milan, C Trudeau, D Benetti, A Soudi, ... Journal of Materials Chemistry A 3 (6), 2580-2588 , 2015 2015 Citations: 92
Review of hybrid 1D/2D photocatalysts for light-harvesting applications A Nawaz, S Goudarzi, MA Asghari, S Pichiah, GS Selopal, F Rosei, ... ACS Applied Nano Materials 4 (11), 11323-11352 , 2021 2021 Citations: 88
“Green”, gradient multi-shell CuInSe2/(CuInSexS1-x) 5/CuInS2 quantum dots for photo-electrochemical hydrogen generation F Li, M Zhang, D Benetti, L Shi, LV Besteiro, H Zhang, J Liu, GS Selopal, ... Applied Catalysis B: Environmental 280, 119402 , 2021 2021 Citations: 84
ZnO@SnO 2 engineered composite photoanodes for dye sensitized solar cells R Milan, GS Selopal, M Epifani, MM Natile, G Sberveglieri, A Vomiero, ... Scientific reports 5 (1), 14523 , 2015 2015 Citations: 83
Efficient and stable photoelectrochemical hydrogen generation using optimized colloidal heterostructured quantum dots H Zhang, LV Besteiro, J Liu, C Wang, GS Selopal, Z Chen, D Barba, ... Nano Energy 79, 105416 , 2020 2020 Citations: 71
Effect of blocking layer to boost photoconversion efficiency in ZnO dye-sensitized solar cells GS Selopal, N Memarian, R Milan, I Concina, G Sberveglieri, A Vomiero ACS Applied Materials & Interfaces 6 (14), 11236-11244 , 2014 2014 Citations: 64
Efficient solar-driven hydrogen generation using colloidal heterostructured quantum dots K Wang, X Tong, Y Zhou, H Zhang, F Navarro-Pardo, GS Selopal, G Liu, ... Journal of materials chemistry A 7 (23), 14079-14088 , 2019 2019 Citations: 61
Synergistic Effect of Plasmonic Gold Nanoparticles Decorated Carbon Nanotubes in Quantum Dots/TiO2 for Optoelectronic Devices GS Selopal, M Mohammadnezhad, LV Besteiro, O Cavuslar, J Liu, ... Advanced Science, 2001864 , 2020 2020 Citations: 59
Graphene as transparent front contact for dye sensitized solar cells GS Selopal, R Milan, L Ortolani, V Morandi, R Rizzoli, G Sberveglieri, ... Solar Energy Materials and Solar Cells 135, 99-105 , 2015 2015 Citations: 58
Heavy‐metal‐free colloidal quantum dots: progress and opportunities in solar technologies L Jin, GS Selopal, X Tong, DF Perepichka, ZM Wang, F Rosei Advanced Materials 36 (33), 2402912 , 2024 2024 Citations: 57
Environmentally friendly Mn-alloyed core/shell quantum dots for high-efficiency photoelectrochemical cells R Wang, X Tong, AI Channa, Q Zeng, J Sun, C Liu, X Li, J Xu, F Lin, ... Journal of Materials Chemistry A 8 (21), 10736-10741 , 2020 2020 Citations: 57
Visible and near-infrared, multiparametric, ultrasensitive nanothermometer based on dual-emission colloidal quantum dots J Liu, H Zhang, GS Selopal, S Sun, H Zhao, F Rosei Acs Photonics 6 (10), 2479-2486 , 2019 2019 Citations: 57
Interfacial engineering in colloidal “giant” quantum dots for high-performance photovoltaics GS Selopal, H Zhao, G Liu, H Zhang, X Tong, K Wang, J Tang, X Sun, ... Nano Energy 55, 377-388 , 2019 2019 Citations: 56