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Huang W, Yu Y, Wang D, Ma H, Wang G. Zn 2SnO 4@Ti ceramic film anode preparation by microarc oxidation for 2e - WOR degradation of unsymmetrical dimethylhydrazine (UDMH). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120724. [PMID: 38527385 DOI: 10.1016/j.jenvman.2024.120724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/03/2024] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
The main challenge facing the anodic electro-Fenton through the 2e- water oxidation reaction (WOR) for toxics degradation lies in the electrode's stability, because the anodic oxygen evolution (OER) generated O2 will inevitably exfoliate the electro-active components loaded on the electrode substrate. To address this point, two aspects need attention: 1) Identifying a catalyst that exhibits both excellent electrocatalytic activity and selectivity can improve the faradaic efficiency of hydrogen peroxide (H2O2); 2) Employing novel methods for fabricating highly stable electrodes, where active sites can be firmly coated. Consequently, this study utilized microarc oxidation (MAO) to prepare a ceramic film electrode Zn2SnO4@Ti at 300 V. Zn2SnO4 acts as an WOR electrocatalyst and further improved the generation of H2O2 for treating real wastewater containing Unsymmetrical Dimethylhydrazine (UDMH). From the perspective of characterization of electrode structure, Zn2SnO4@Ti forms a stable active coating, the electrochemical yield of H2O2 is high up to 78.4 μmol h-1 cm-2, and the selectivity of H2O2 is over 80% at 3.3 V vs. RHE, which can be fully applied to scenarios where it is inconvenient to transport H2O2 and need in-situ safe production. Additionally, the prepared electrodes exhibit significant stability, suitable for various applications, providing insightful preparation strategies and experiences for constructing highly stable anodes.
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Affiliation(s)
- Wenxuan Huang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian, 116034, PR China
| | - Yuanyuan Yu
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian, 116034, PR China
| | - Dong Wang
- College of Marine Science-Technology and Environment, Dalian Ocean University, No. 52 Heishijiao, Shahekou District, Dalian, 116023, PR China
| | - Hongchao Ma
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian, 116034, PR China.
| | - Guowen Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian, 116034, PR China.
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Synergistically Photo-Thermo-Catalytic Effect of Metal-Oxide Semiconductors with d10 Electronic Configuration for Hydrogen Generation in NaBH4 Hydrolyzation. Catal Letters 2022. [DOI: 10.1007/s10562-021-03825-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Azimi F, Azizian H, Najafi M, Khodarahmi G, Saghaei L, Hassanzadeh M, Ghasemi JB, Faramarzi MA, Larijani B, Hassanzadeh F, Mahdavi M. Design, synthesis, biological evaluation, and molecular modeling studies of pyrazole-benzofuran hybrids as new α-glucosidase inhibitor. Sci Rep 2021; 11:20776. [PMID: 34675367 PMCID: PMC8531348 DOI: 10.1038/s41598-021-99899-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 09/24/2021] [Indexed: 12/20/2022] Open
Abstract
In this work, new derivatives of biphenyl pyrazole-benzofuran hybrids were designed, synthesized and evaluated in vitro through enzymatic assay for inhibitory effect against α-glucosidase activity. Newly identified inhibitors were found to be four to eighteen folds more active with IC50 values in the range of 40.6 ± 0.2-164.3 ± 1.8 µM, as compared to the standard drug acarbose (IC50 = 750.0 ± 10.0 μM). Limited Structure-activity relationship was established. A kinetic binding study indicated that most active compound 8e acted as the competitive inhibitors of α-glucosidase with Ki = 38 μM. Molecular docking has also been performed to find the interaction modes responsible for the desired inhibitory activity. As expected, all pharmacophoric features, used in the design of the hybrid, are involved in the interaction with the active site of the enzyme. In addition, molecular dynamic simulations showed compound 8e oriented vertically into the active site from mouth to the bottom and stabilized the enzyme domains by interacting with the interface of domain A and domain B and the back side of the active site while acarbose formed non-binding interaction with the residue belong to the domain A of the enzyme.
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Affiliation(s)
- Fateme Azimi
- Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
| | - Homa Azizian
- Department of Medicinal Chemistry, School of Pharmacy-International Campus, Iran University of Medical Science, Tehran, Iran
| | - Mohammad Najafi
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Ghadamali Khodarahmi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Hezar Jerib, 817416-73461, Isfahan, Iran
| | - Lotfollah Saghaei
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Hezar Jerib, 817416-73461, Isfahan, Iran
| | - Motahareh Hassanzadeh
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Hezar Jerib, 817416-73461, Isfahan, Iran
| | - Jahan B Ghasemi
- School of Chemistry, University College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, 1417614411, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshid Hassanzadeh
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Hezar Jerib, 817416-73461, Isfahan, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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