Sunlight-mediated removal of endocrine disruptors from wastewater using trimetallic core-shell Ag-TeO2@ZnO nanocomposites Preeti Joshi, Rajendra Patel, Aishwarya Singh, Bhavani Prasad Naik Nenavathu, Manu Sharma, et al. Nanotechnology, 2024 The current work emphasizes the preparation of trimetallic core-shell Ag–TeO2@ZnO nanocomposites (NCs) by thermo-mechanical method for the efficient photocatalytic degradation of 2,4-Dichlorophenol and β-naphthol pollutants. FE-SEM shows that Ag and TeO2 nanoparticles are deposited on the surface of ZnO nanotubes. The band gap of pristine ZnO NPs and 5 wt% Ag–TeO2@ZnO nanocomposites are found to be 3.16 and 2.96 eV, respectively. The calculated specific surface area (SBET) of pristine ZnO NPs and 5 wt% Ag–TeO2@ZnO nanocomposites are 40.47 and 45.66 m2 g−1 respectively, confirming that Ag and TeO2 nanoparticles contribute to increasing in surface area of pure ZnO. The synthesised nanocomposite showed excellent photocatalytic performance for the degradation of β -naphthol (95.6%) in 40 min at the concentration of (0.6 mg ml−1) and 2,4-DCP (99.6%) in 180 min (0.4 mg ml−1) under natural sunlight. Cyclic Voltammetry and Electrochemical Impedance Spectroscopy were carried out to study the electrochemical properties. The determination of reactive oxygen species (ROS) confirmed that the degradation of the pollutants by 5 wt% Ag–TeO2@ZnO NCs was due to the formation of superoxide radicals. Electron paramagnetic resonance revealed the presence of sharp signals in pure ZnO nanoparticles at g ∼1.95 and oxygen vacancy peak at g ∼2.01 in 5 wt% Ag–TeO2@ZnO NCs. To study the mechanism behind the degradation of pollutants, Scavenger test using histidine and ascorbic acid (ROS scavengers) was performed. The synthesised nanocomposites are highly stable and showed enhanced efficiency up to three cycles, confirming their reusability as a photocatalyst.
Recycling of Lithium From Li-ion Batteries Bhuvaneshwari Balasubramaniam, Narendra Singh, Swati Verma, Raju K. Gupta Encyclopedia of Renewable and Sustainable Materials Volume 1 5, 2020
Interaction of novel betaine-PEG deep eutectic solvents with bovine and human serum albumin: protein structure modulation and antioxidant activity M Siddiqui, S Verma, M Naushad, M Ali Journal of Molecular Liquids, 128494 , 2025 2025 Citations: 5
Decontamination of Subsurface Water Resources System Using Contemporary Technologies D Kumar, PK Gupta, B Singh, S Verma Elsevier , 2025 2025 Citations: 1
Adsorption dynamics of gaseous toluene with and without formaldehyde and water vapors on composites of UiO-66-NH2 and microporous carbon S Sun, S Verma, B Anand, SA Younis, DW Boukhvalov, KH Kim Chemical Engineering Journal 498, 155605 , 2024 2024 Citations: 16
Synthesis of hierarchical flower-like nitrogen functionalized graphene oxide‑zinc oxide photocatalyst for the sonophotocatalytic degradation of tetracycline antibiotic N Kumar, S Verma, U Jung, J Park, M Naushad Journal of Water Process Engineering 64, 105740 , 2024 2024 Citations: 7
Anti-competitive adsorption of gaseous benzene on hydrophilic microporous carbon in humid conditions B Liu, M Yu, S Verma, KH Kim Science of The Total Environment 927, 171998 , 2024 2024 Citations: 6
The effects of metal-oxide content in MnO2-activated carbon composites on reactive adsorption and catalytic oxidation of formaldehyde and toluene in air WK Kim, S Verma, Y Ahmadi, MS Cho, KH Kim Science of The Total Environment 926, 172137 , 2024 2024 Citations: 23
Photocatalytic efficacy of air purifiers equipped with self-cleaning titanium dioxide xerogel coatings against gaseous formaldehyde: A study using DRIFTS and DFT analysis S Verma, N Kumar, KH Kim, J Park Chemical Engineering Journal 486, 150269 , 2024 2024 Citations: 14
Efficient one-pot two-step electrochemical synthesis of highly oxidized graphene oxide for enhanced energy and environmental applications: Structure elucidation through DFT … N Kumar, S Verma, P Kumar, AA Khan, J Park, VC Srivastava Carbon 218, 118722 , 2024 2024 Citations: 36
Sunlight-mediated removal of endocrine disruptors from Wastewater using trimetallic core-shell Ag-TeO2@ ZnO nanocomposites P Joshi, R Patel, A Singh, BPN Nenavathu, M Sharma, S Verma, ... Nanotechnology 35 , 2024 2024 Citations: 10
Sunlight mediated removal of toxic pollutants from Yamuna wastewater using efficient nano TeO2–ZnO nanocomposites A Singh, SK Modi, P Joshi, BP Nenavathu, MS Singh, S Verma, ... Chemosphere 348, 140658 , 2024 2024 Citations: 17
Diaminopropane-appended activated carbons for the adsorptive removal of gaseous formaldehyde using a portable indoor air purification unit S Sun, K Vikrant, S Verma, DW Boukhvalov, KH Kim Journal of Colloid and Interface Science 653, 992-1005 , 2024 2024 Citations: 19
Advances in semiconductor photocatalyst toward the removal of aromatic volatile organic compounds in air S Verma, N Kumar Multifunctional Hybrid Semiconductor Photocatalyst Nanomaterials … , 2023 2023 Citations: 1
Effects of gas phase composition on competitive adsorption properties of formaldehyde on titanium dioxide-supported platinum in single and mixture compositions Y Hua, S Verma, SA Younis, PM Heynderickx, KH Kim Science of The Total Environment 892, 163924 , 2023 2023 Citations: 18
Zinc-doped titanium oxynitride as a high-performance adsorbent for formaldehyde in air TY Tran, S Verma, SA Younis, KH Kim Journal of Hazardous Materials 451, 131203 , 2023 2023 Citations: 12
Bioremediation of carbendazim and thiamethoxam in domestic greywater using a bioaugmented microbial consortium N Rajpal, S Verma, N Kumar, J Lee, KH Kim, JK Ratan, N Divya Environmental Technology & Innovation 30, 103087 , 2023 2023 Citations: 19
Carbon based adsorbents for the removal of U (VI) from aqueous medium: A state of the art review SA Fahad, MS Nawab, MA Shaida, S Verma, MU Khan, V Siddiqui, ... Journal of Water Process Engineering 52, 103458 , 2023 2023 Citations: 47
Critical analysis of the role of various iron-based heterogeneous catalysts for advanced oxidation processes: A state of the art review MA Shaida, S Verma, S Talukdar, N Kumar, MS Mahtab, M Naushad, ... Journal of Molecular Liquids 374, 121259 , 2023 2023 Citations: 52
Functionalized Graphene and carbon nanotubes materials towards environmental applications S Verma, N Kumar, J Park Emerging Applications of Carbon Nanotubes and Graphene, 253-274 , 2023 2023 Citations: 5
Environmental Applications of Biosynthesized Silver Nanoparticles RP Srivastava, S Pareek, N Kumar, S Verma, D Shrivastava 2023 Citations: 1
Optimization of process variables for the concurrent removal of aliphatic and aromatic volatile organic compounds over a copper impregnated titanium dioxide photocatalyst S Verma, K Vikrant, KH Kim Environmental Science: Nano 10 (8), 2035-2052 , 2023 2023 Citations: 16
MOST CITED SCHOLAR PUBLICATIONS
A facile method of synthesizing ammonia modified graphene oxide for efficient removal of uranyl ions from aqueous medium S Verma, RK Dutta RSC advances 5 (94), 77192-77203 , 2015 2015 Citations: 236
Recycling, reclamation and re-manufacturing of carbon fibres S Verma, B Balasubramaniam, RK Gupta Current opinion in green and sustainable chemistry 13, 86-90 , 2018 2018 Citations: 106
Graphene-based materials for the adsorptive removal of uranium in aqueous solutions S Verma, KH Kim Environment international 158, 106944 , 2022 2022 Citations: 94
Visible-light-driven photocatalytic degradation of safranin-T dye using functionalized graphene oxide nanosheet (FGS)/ZnO nanocomposites BP Nenavathu, S Kandula, S Verma RSC advances 8 (35), 19659-19667 , 2018 2018 Citations: 92
Enhanced ROS generation by ZnO-ammonia modified graphene oxide nanocomposites for photocatalytic degradation of trypan blue dye and 4-nitrophenol S Verma, RK Dutta Journal of environmental chemical engineering 5 (5), 4776-4787 , 2017 2017 Citations: 90
Amine-amide functionalized graphene oxide sheets as bifunctional adsorbent for the removal of polar organic pollutants S Verma, KH Kim, N Kumar, SS Bhattacharya, M Naushad, RK Dutta Journal of Hazardous Materials 429, 128308 , 2022 2022 Citations: 69
Anisotropic ZnO nanostructures and their nanocomposites as an advanced platform for photocatalytic remediation S Verma, SA Younis, KH Kim, F Dong Journal of Hazardous Materials 415, 125651 , 2021 2021 Citations: 57
Critical analysis of the role of various iron-based heterogeneous catalysts for advanced oxidation processes: A state of the art review MA Shaida, S Verma, S Talukdar, N Kumar, MS Mahtab, M Naushad, ... Journal of Molecular Liquids 374, 121259 , 2023 2023 Citations: 52
Carbon based adsorbents for the removal of U (VI) from aqueous medium: A state of the art review SA Fahad, MS Nawab, MA Shaida, S Verma, MU Khan, V Siddiqui, ... Journal of Water Process Engineering 52, 103458 , 2023 2023 Citations: 47
Development of cysteine amide reduced graphene oxide (CARGO) nano-adsorbents for enhanced uranyl ions removal from aqueous medium S Verma, RK Dutta Journal of environmental chemical engineering 5 (5), 4547-4558 , 2017 2017 Citations: 46
A facile synthesis of novel polyaniline/graphene nanocomposite thin films for enzyme-free electrochemical sensing of hydrogen peroxide S Verma, DS Mal, PR de Oliveira, BC Janegitz, J Prakash, RK Gupta Molecular Systems Design & Engineering 7 (2), 158-170 , 2022 2022 Citations: 41
Efficient one-pot two-step electrochemical synthesis of highly oxidized graphene oxide for enhanced energy and environmental applications: Structure elucidation through DFT … N Kumar, S Verma, P Kumar, AA Khan, J Park, VC Srivastava Carbon 218, 118722 , 2024 2024 Citations: 36
Photocatalytic potential of a titanium dioxide–supported platinum catalyst against VOCs with complicated composition under varying humidity conditions JW You, K Vikrant, DH Lim, S Verma, D Kukkar, H Anwer, KH Kim Journal of Cleaner Production 371, 133487 , 2022 2022 Citations: 36
Evaluation of photocatalytic performances of PEG and PVP capped zinc sulfide nanoparticles towards organic environmental pollutant in presence of sunlight N Kumar, S Verma, J Park, VC Srivastava, M Naushad Chemosphere 298, 134281 , 2022 2022 Citations: 29
The effects of metal-oxide content in MnO2-activated carbon composites on reactive adsorption and catalytic oxidation of formaldehyde and toluene in air WK Kim, S Verma, Y Ahmadi, MS Cho, KH Kim Science of The Total Environment 926, 172137 , 2024 2024 Citations: 23
Recycling of lithium from Li-ion batteries B Balasubramaniam, N Singh, S Verma, RK Gupta Encyclopedia of Renewable and Sustainable Materials, 546-554 , 2020 2020 Citations: 21
Diaminopropane-appended activated carbons for the adsorptive removal of gaseous formaldehyde using a portable indoor air purification unit S Sun, K Vikrant, S Verma, DW Boukhvalov, KH Kim Journal of Colloid and Interface Science 653, 992-1005 , 2024 2024 Citations: 19
Bioremediation of carbendazim and thiamethoxam in domestic greywater using a bioaugmented microbial consortium N Rajpal, S Verma, N Kumar, J Lee, KH Kim, JK Ratan, N Divya Environmental Technology & Innovation 30, 103087 , 2023 2023 Citations: 19
Effects of gas phase composition on competitive adsorption properties of formaldehyde on titanium dioxide-supported platinum in single and mixture compositions Y Hua, S Verma, SA Younis, PM Heynderickx, KH Kim Science of The Total Environment 892, 163924 , 2023 2023 Citations: 18
Sunlight mediated removal of toxic pollutants from Yamuna wastewater using efficient nano TeO2–ZnO nanocomposites A Singh, SK Modi, P Joshi, BP Nenavathu, MS Singh, S Verma, ... Chemosphere 348, 140658 , 2024 2024 Citations: 17
Industry, Institute, or Organisation Collaboration
Hanyang University
Indian Institute of Technology Kanpur
Indian Institute of Technology Roorkee
