Highly efficient piezocatalytic composite with chitosan biopolymeric membranes and bismuth ferrite nanoparticles for dye decomposition and pathogenic S. aureus bacteria killing Yunhong Liu, Jhilik Roy, Shubham Roy, Nur Amin Hoque, Bing Guo Frontiers in Chemistry, 2024 Untreated wastewater harbors dangerous pathogens, chemicals, and pollutants, posing grave public health threats. Nowadays, there is a rising demand for eco-friendly technologies for wastewater treatment. Recently, piezoelectric materials-based wastewater treatment technology has captured considerable interest among researchers because of its noninvasiveness and rapidity. Herein, a highly efficient piezoelectric composite material is designed with chitosan-incorporated bismuth ferrite (BFO) nanocrystals, to decompose pollutants and ablate bacteria in wastewater. On one hand, piezoelectric BFO has shown exclusive piezo-coefficient for ultrasound-mediated reactive oxygen species (ROS) production. On the other hand, chitosan depicts its biocompatible nature, which not only promotes cellular adhesion but also significantly elevates the ROS production capabilities of BFO under ultrasound. The synergistic effect of these two piezoelectric units in one composite entity shows an improved ROS production, eradicating ∼87.8% of Rhodamine B within 80 min under soft ultrasound treatment (rate constant, k ≈ 0.02866 min−1). After performing the scavenger experiment, it has been found that hydroxyl radicals are the dominating factor in this case. Further, the reusability of the composite piezocatalyst is confirmed through multiple cycles (five times) of the same experiment. The high polarizability of the composite material facilitates the generation of piezoelectric power through finger tapping (∼12.05 V), producing substantial instantaneous piezo-voltage. Moreover, the sample exhibits remarkable antibacterial activity, with nearly 99% bacterial eradication within 30 min. This indicates a significant advancement in utilizing biopolymeric composites incorporated with BFO for fabricating versatile devices with multidimensional applications.
A brief review on carbon-based nanosystems for detection of pollutants in industrial wastewater and living cells and their subsequent removal strategies Novel Applications of Carbon Based Nano Materials, 2022
Development of a Sustainable and Biodegradable Sonchus asper Cotton Pappus Based Piezoelectric Nanogenerator for Instrument Vibration and Human Body Motion Sensing with Mechanical Energy Harvesting Applications Debmalya Sarkar, Namrata Das, Md. Minarul Saikh, Prosenjit Biswas, Solanky Das, et al. ACS Omega, 2021 Energy harvesting from natural resources has gained much attention due to the huge increase in the demand for portable electronic devices and the shortage of conventional energy resources in general. In the present work, the fabrication and realistic applications of a piezoelectric nanogenerator (PENG) using polydimethylsiloxane (PDMS) and the abundantly available, environment-friendly natural fiber Sonchus asper (SA) have been discussed. The biocompatible, low-cost SA fibers were flexible enough and showed high piezoelectric properties as active materials in the study. The SA pappus based piezoelectric nanogenerator demonstrated its ability to convert the harvested biomechanical energy into electrical energy from the various mechanical energy sources available in our environment. The SA pappus/PDMS thin film based piezoelectric nanogenerator (SPENG) fabricated in the laboratory showed colossal output performances (open circuit output voltage, VOC ∼81.2 V; short circuit current, ISC ∼1.0 μA) by continuous finger impartation. Uniform output performance was also obtained by the application of uniform force on the devices (e.g., ∼42 V for 5 N force at 10 Hz frequency). The SPENG was capable to charge a 2.2 μF capacitor to 3.2 V within a short time span (16 s) under continuous finger impartation and illuminate 39 commercial high-power blue LEDs that were connected in series. Thus, the fabricated SPENG can be used as a green and portable energy source to power up portable electronic devices. Apart from this, the SPENG may also be used as a self-powered energy supply for pacemakers or different types of health care units if properly improvised.
Handwriting to Digital Text Translation Using a Self-Powered Triboelectricity-Induced Piezoelectric Writing Pad through a Deep Learning Algorithm S Chowdhury, NA Hoque, A Ali, T Ahammed, A Bera, MY Sk, ... ACS Applied Materials & Interfaces 18 (10), 15516-15526 , 2026 2026
Upcycling agricultural and packaging waste: A spacer-free, all-porous triboelectric sensor for bidirectional breeze energy harvesting and real-time on-road vehicular over-speed … N Das, D Sarkar, NA Hoque, MM Saikh, S Das, PP Ray Chemical Engineering Journal, 166938 , 2025 2025 Citations: 6
Wenzel model motivated, superwettable micro-motiffed membrane for droplet-driven, real-time acid rain sensor via sequential contact electrification strategy N Das, D Sarkar, S Sau, A Ali, S Mandal, S Das, PP Ray, NA Hoque Materials Today Energy 48, 101812 , 2025 2025 Citations: 21
Highly efficient piezocatalytic composite with chitosan biopolymeric membranes and bismuth ferrite nanoparticles for dye decomposition and pathogenic S. aureus bacteria killing Y Liu, J Roy, S Roy, NA Hoque, B Guo Frontiers in Chemistry 12, 1420040 , 2024 2024 Citations: 14
Elevating the performance of nanoporous bismuth selenide incorporated arch-shaped triboelectric nanogenerator by implementing piezo-tribo coupling effect: harvesting … D Sarkar, N Das, MM Saikh, S Roy, S Paul, NA Hoque, R Basu, S Das Advanced Composites and Hybrid Materials 6 (6), 232 , 2023 2023 Citations: 45
Development of a lead-free, high-frequency ultrasound transducer with broad bandwidth and enhanced pulse-echo response, employing β-Ni (OH) 2/PVDF-TrFE piezoelectric composite N Das, D Sarkar, N Yadav, A Ali, S Das, PP Ray, NA Hoque Chemical Engineering Journal 475, 146322 , 2023 2023 Citations: 15
High β-crystallinity comprising nitrogenous carbon dot/PVDF nanocomposite decorated self-powered and flexible piezoelectric nanogenerator for harvesting human movement mediated … D Sarkar, N Das, MM Saikh, P Biswas, S Roy, S Paul, NA Hoque, R Basu, ... Ceramics International 49 (3), 5466-5478 , 2023 2023 Citations: 41
A Brief review on carbon-based nanosystems for detection of pollutants in industrial wastewater and living cells and their subsequent removal strategies S Roy, S Bardhan, NA Hoque, S Das Novel Applications of Carbon Based Nano-materials, 321-339 , 2022 2022 Citations: 3
Piezoelectric activity assessment of size-dependent naturally acquired mud volcano clay nanoparticles assisted highly pressure sensitive nanogenerator for green mechanical … N Das, D Sarkar, MM Saikh, P Biswas, S Das, NA Hoque, PP Ray Nano Energy 102, 107628 , 2022 2022 Citations: 34
Human movement-mediated energy harvesting and weight sensing using flexible N-carbon dot loaded PVDF nanocomposite D Sarkar, N Das, MM Saikh, P Biswas, S Roy, S Paul, NA Hoque, R Basu, ... 2022 Citations: 1
Piezoelectric activity assessment of size-dependent naturally acquired mud volcano clay nanoparticles assisted highly pressure sensitive nanogenerator for green mechanical … NA Hoque Elsevier , 2022 2022
Development of a Sustainable and Biodegradable Sonchus asper Cotton Pappus Based Piezoelectric Nanogenerator for Instrument Vibration and Human Body … D Sarkar, N Das, MM Saikh, P Biswas, S Das, S Das, NA Hoque, R Basu ACS omega 6 (43), 28710-28717 , 2021 2021 Citations: 25
Self‐Polarized ZrO 2 /Poly(vinylidene fluoride‐ co ‐hexafluoropropylene) Nanocomposite‐Based Piezoelectric Nanogenerator and Single‐Electrode Triboelectric … MM Saikh, NA Hoque, P Biswas, W Rahman, N Das, S Das, P Thakur physica status solidi (a) 218 (9), 2000695 , 2021 2021 Citations: 50
Re-usable self-poled piezoelectric/piezocatalytic films with exceptional energy harvesting and water remediation capability B Bagchi, NA Hoque, N Janowicz, S Das, MK Tiwari Nano Energy 78, 105339 , 2020 2020 Citations: 160
Tunable output performance of triboelectric nanogenerator based on alginate metal complex for sustainable operation of intelligent keyboard sensing system K Xia, D Wu, J Fu, NA Hoque, Y Ye, Z Xu Nano Energy 78, 105263 , 2020 2020 Citations: 67
Essential oil impregnated luminescent hydroxyapatite: Antibacterial and cytotoxicity studies S Banerjee, B Bagchi, K Pal, S Bhandary, A Kool, NA Hoque, P Biswas, ... Materials Science and Engineering: C 116, 111190 , 2020 2020 Citations: 24
A high-output triboelectric nanogenerator based on nickel–copper bimetallic hydroxide nanowrinkles for self-powered wearable electronics K Xia, D Wu, J Fu, NA Hoque, Y Ye, Z Xu Journal of Materials Chemistry A 8 (48), 25995-26003 , 2020 2020 Citations: 155
Portable self-powered piezoelectric nanogenerator and self-charging photo-power pack using in situ formed multifunctional calcium phosphate nanorod-doped PVDF films P Biswas, NA Hoque, P Thakur, MM Saikh, S Roy, F Khatun, B Bagchi, ... Langmuir 35 (52), 17016-17026 , 2019 2019 Citations: 26
Self-charging photo-power cell based on a novel polymer nanocomposite film with high energy density and durability S Roy, P Thakur, NA Hoque, A Kool, F Khatun, P Biswas, B Bagchi, S Das Polymer Journal 51 (11), 1197-1209 , 2019 2019 Citations: 11
Photo-rechargeable organic–inorganic dye-integrated polymeric power cell with superior performance and durability F Khatun, P Thakur, A Kool, S Roy, NA Hoque, P Biswas, B Bagchi, S Das Langmuir 35 (19), 6346-6355 , 2019 2019 Citations: 26
MOST CITED SCHOLAR PUBLICATIONS
Superior performances of in situ synthesized ZnO/PVDF thin film based self-poled piezoelectric nanogenerator and self-charged photo-power bank with high durability P Thakur, A Kool, NA Hoque, B Bagchi, F Khatun, P Biswas, D Brahma, ... Nano Energy 44, 456-467 , 2018 2018 Citations: 306
Re-usable self-poled piezoelectric/piezocatalytic films with exceptional energy harvesting and water remediation capability B Bagchi, NA Hoque, N Janowicz, S Das, MK Tiwari Nano Energy 78, 105339 , 2020 2020 Citations: 160
Biowaste crab shell-extracted chitin nanofiber-based superior piezoelectric nanogenerator NA Hoque, P Thakur, P Biswas, MM Saikh, S Roy, B Bagchi, S Das, ... Journal of Materials Chemistry A 6 (28), 13848-13858 , 2018 2018 Citations: 157
A high-output triboelectric nanogenerator based on nickel–copper bimetallic hydroxide nanowrinkles for self-powered wearable electronics K Xia, D Wu, J Fu, NA Hoque, Y Ye, Z Xu Journal of Materials Chemistry A 8 (48), 25995-26003 , 2020 2020 Citations: 155
Er 3+ /Fe 3+ Stimulated Electroactive, Visible Light Emitting, and High Dielectric Flexible PVDF Film Based Piezoelectric Nanogenerators: A Simple and Superior … NA Hoque, P Thakur, S Roy, A Kool, B Bagchi, P Biswas, MM Saikh, ... ACS applied materials & interfaces 9 (27), 23048-23059 , 2017 2017 Citations: 127
In situ synthesis of Ni (OH) 2 nanobelt modified electroactive poly (vinylidene fluoride) thin films: remarkable improvement in dielectric properties P Thakur, A Kool, B Bagchi, NA Hoque, S Das, P Nandy Physical Chemistry Chemical Physics 17 (19), 13082-13091 , 2015 2015 Citations: 108
The role of cerium (iii)/yttrium (iii) nitrate hexahydrate salts on electroactive β phase nucleation and dielectric properties of poly (vinylidene fluoride) thin films P Thakur, A Kool, B Bagchi, NA Hoque, S Das, P Nandy RSC advances 5 (36), 28487-28496 , 2015 2015 Citations: 100
Enhanced electroactive β-phase nucleation and dielectric properties of PVdF-HFP thin films influenced by montmorillonite and Ni (OH) 2 nanoparticle modified montmorillonite S Roy, P Thakur, NA Hoque, B Bagchi, S Das RSC advances 6 (26), 21881-21894 , 2016 2016 Citations: 80
Tunable output performance of triboelectric nanogenerator based on alginate metal complex for sustainable operation of intelligent keyboard sensing system K Xia, D Wu, J Fu, NA Hoque, Y Ye, Z Xu Nano Energy 78, 105263 , 2020 2020 Citations: 67
Mechanical, dielectric and photoluminescence properties of alumina–mullite composite derived from natural Ganges clay A Kool, P Thakur, B Bagchi, NA Hoque, S Das Applied Clay Science 114, 349-358 , 2015 2015 Citations: 63
Antimicrobial and biocompatible fluorescent hydroxyapatite-chitosan nanocomposite films for biomedical applications S Banerjee, B Bagchi, S Bhandary, A Kool, NA Hoque, P Biswas, K Pal, ... Colloids and Surfaces B: Biointerfaces 171, 300-307 , 2018 2018 Citations: 62
Highly efficient and durable piezoelectric nanogenerator and photo-power cell based on CTAB modified montmorillonite incorporated PVDF film P Biswas, NA Hoque, P Thakur, MM Saikh, S Roy, F Khatun, B Bagchi, ... ACS Sustainable Chemistry & Engineering 7 (5), 4801-4813 , 2019 2019 Citations: 58
Electroactive and high dielectric folic acid/PVDF composite film rooted simplistic organic photovoltaic self-charging energy storage cell with superior energy density and … S Roy, P Thakur, NA Hoque, B Bagchi, N Sepay, F Khatun, A Kool, S Das ACS applied materials & interfaces 9 (28), 24198-24209 , 2017 2017 Citations: 57
A facile vacuum assisted synthesis of nanoparticle impregnated hydroxyapatite composites having excellent antimicrobial properties and biocompatibility S Banerjee, B Bagchi, S Bhandary, A Kool, NA Hoque, P Thakur, S Das Ceramics International 44 (1), 1066-1077 , 2018 2018 Citations: 51
Self‐Polarized ZrO 2 /Poly(vinylidene fluoride‐ co ‐hexafluoropropylene) Nanocomposite‐Based Piezoelectric Nanogenerator and Single‐Electrode Triboelectric … MM Saikh, NA Hoque, P Biswas, W Rahman, N Das, S Das, P Thakur physica status solidi (a) 218 (9), 2000695 , 2021 2021 Citations: 50
Improvement of electroactive β phase nucleation and dielectric properties of WO 3· H 2 O nanoparticle loaded poly (vinylidene fluoride) thin films P Thakur, A Kool, B Bagchi, NA Hoque, S Das, P Nandy RSC advances 5 (77), 62819-62827 , 2015 2015 Citations: 49
Elevating the performance of nanoporous bismuth selenide incorporated arch-shaped triboelectric nanogenerator by implementing piezo-tribo coupling effect: harvesting … D Sarkar, N Das, MM Saikh, S Roy, S Paul, NA Hoque, R Basu, S Das Advanced Composites and Hybrid Materials 6 (6), 232 , 2023 2023 Citations: 45
Improving the thermal stability, electroactive β phase crystallization and dielectric constant of NiO nanoparticle/C–NiO nanocomposite embedded flexible poly (vinylidene … P Thakur, A Kool, NA Hoque, B Bagchi, S Roy, N Sepay, S Das, P Nandy RSC advances 6 (31), 26288-26299 , 2016 2016 Citations: 42
High β-crystallinity comprising nitrogenous carbon dot/PVDF nanocomposite decorated self-powered and flexible piezoelectric nanogenerator for harvesting human movement mediated … D Sarkar, N Das, MM Saikh, P Biswas, S Roy, S Paul, NA Hoque, R Basu, ... Ceramics International 49 (3), 5466-5478 , 2023 2023 Citations: 41
Tunable photoluminescence emissions and large dielectric constant of the electroactive poly (vinylidene fluoride–hexafluoropropylene) thin films modified with SnO 2 nanoparticles NA Hoque, P Thakur, N Bala, A Kool, S Das, PP Ray RSC Advances 6 (36), 29931-29943 , 2016 2016 Citations: 36