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Akter N, Ahmed T, Haque I, Hossain MK, Ray G, Hossain MM, Islam MS, Ali shaikh MA, Akhtar US. XPS valence band observable light-responsive system for photocatalytic acid Red114 dye decomposition using a ZnO-Cu 2O heterojunction. Heliyon 2024; 10:e30802. [PMID: 38778931 PMCID: PMC11108845 DOI: 10.1016/j.heliyon.2024.e30802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
ZnO-Cu2O composites were made as photocatalysts in a range of different amounts using an easy, cheap, and environment-friendly coprecipitation method due to their superior visible light activity to remove pollutants from the surrounding atmosphere. X-ray diffraction and Fourier transform infrared spectroscopy (FT-IR) have demonstrated that ZnO-Cu2O catalysts are made of highly pure hexagonal ZnO and cubic Cu2O. X-ray photoelectron spectroscopy has confirmed that there is a substantial interaction between the two phases of the resultant catalyst. The optical characterizations of the synthesized ZnO-Cu2O composite were done via UV-vis reflectance spectroscopy. Due to the doping on ZnO, the absorption range of the ZnO-Cu2O catalyst is shifted from the ultraviolet to the visible region due to diffuse reflection. The degradation efficiency is affected by the Ratio of ZnO: Cu2O and ZnO-Cu2O composite with a proportion of 90:10 exhibited the most prominent photocatalytic activity on Acid Red 114, with a pseudo-first-order rate constant of 0.05032 min-1 that was 6 and 11 times greater than those of ZnO and Cu2O, respectively. The maximum degradation efficiency is 97 %. The enhanced photocatalytic activity of the composite is caused by the synergistic interaction of ZnO and Cu2O, which improves visible light absorption by lowering band gap energy and decreasing the rate at which the electron-hole pairs recombine. The scavenging experiment confirmed that hydroxyl radical was the dominant species for the photodegradation of Acid Red 114. Notably, the recycling test demonstrated the ZnO-Cu2O photocatalyst was highly stable and recyclable. These results suggest that the ZnO-Cu2O mix might be able to clean up environmental pollutants when it meets visible light.
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Affiliation(s)
- Nasrin Akter
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
- Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Tanvir Ahmed
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
| | - Imdadul Haque
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
| | - Md Kamal Hossain
- BCSIR Laboratories Dhaka, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Gorungo Ray
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
| | | | - Md Sagirul Islam
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
| | - Md Aftab Ali shaikh
- Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka 1205, Bangladesh
- Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Umme Sarmeen Akhtar
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dr. Qudrat-I-Khuda Road, Dhanmondi, Dhaka 1205, Bangladesh
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2
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Nagarajan A, Sethuraman V, Sasikumar R. Non-enzymatic electrochemical detection of creatinine based on a glassy carbon electrode modified with a Pd/Cu 2O decorated polypyrrole (PPy) nanocomposite: an analytical approach. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1410-1421. [PMID: 36826445 DOI: 10.1039/d3ay00110e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The major constraints of standard enzymatic biosensors are poor long-term storage stability and high cost. Hence, there is extensive research towards fabrication of reliable enzymeless biosensors based on nanomaterials. In this paper, we present the development of an enzymeless electrochemical biosensor for highly precise detection of creatinine. This involves the use of a simple yet effective alternative to the commonly utilized Pd/Cu2O/PPy nanocomposite, which was characterized by different analytical methods. The present electrochemical sensor provides a wide detection range (0.1 to 150 μM), low detection limit (0.05 μM) and high sensitivity (0.207 μA), and is capable of detecting the creatinine level in human urine samples, which are inexpensive. The results are reproducible, and the sensor is stable. The sensor demonstrates good electrocatalytic activity and selectivity towards the detection of creatinine in the presence of various other similar biological entities. When compared to other existing counterparts, the electrocatalytic behaviour of the present sensor is comparable, if not better. So, the present electrochemical sensor for creatinine might be employed as a long-term diagnostic alternative.
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Affiliation(s)
- A Nagarajan
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai-600025, Tamil Nadu, India.
| | - V Sethuraman
- Research and Development, New Energy Storage Technology, Lithium-ion Division, Amara Raja Battery Ltd, Karakambadi-517520, Tirupati, Andhra Pradesh, India
| | - R Sasikumar
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai-600025, Tamil Nadu, India.
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3
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Kulhary D, Singh S. Design of g‐C
3
N
4
/BaBiO
3
Heterojunction Nanocomposites for Photodegradation of an Organic Dye and Diclofenac Sodium under Visible Light via Interfacial Charge Transfer. ChemistrySelect 2022. [DOI: 10.1002/slct.202201964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dinesh Kulhary
- Special Center for Nanoscience Jawaharlal Nehru University New Delhi 110067 India
| | - Satyendra Singh
- Special Center for Nanoscience Jawaharlal Nehru University New Delhi 110067 India
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4
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Enhanced photocatalytic degradation of rhodamine B and malachite green employing BiFeO3/g-C3N4 nanocomposites: An efficient visible-light photocatalyst. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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5
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Alaghmandfard A, Ghandi K. A Comprehensive Review of Graphitic Carbon Nitride (g-C 3N 4)-Metal Oxide-Based Nanocomposites: Potential for Photocatalysis and Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:294. [PMID: 35055311 PMCID: PMC8779993 DOI: 10.3390/nano12020294] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/27/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023]
Abstract
g-C3N4 has drawn lots of attention due to its photocatalytic activity, low-cost and facile synthesis, and interesting layered structure. However, to improve some of the properties of g-C3N4, such as photochemical stability, electrical band structure, and to decrease charge recombination rate, and towards effective light-harvesting, g-C3N4-metal oxide-based heterojunctions have been introduced. In this review, we initially discussed the preparation, modification, and physical properties of the g-C3N4 and then, we discussed the combination of g-C3N4 with various metal oxides such as TiO2, ZnO, FeO, Fe2O3, Fe3O4, WO3, SnO, SnO2, etc. We summarized some of their characteristic properties of these heterojunctions, their optical features, photocatalytic performance, and electrical band edge positions. This review covers recent advances, including applications in water splitting, CO2 reduction, and photodegradation of organic pollutants, sensors, bacterial disinfection, and supercapacitors. We show that metal oxides can improve the efficiency of the bare g-C3N4 to make the composites suitable for a wide range of applications. Finally, this review provides some perspectives, limitations, and challenges in investigation of g-C3N4-metal-oxide-based heterojunctions.
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Affiliation(s)
| | - Khashayar Ghandi
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada;
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6
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Li X, Wu Q, Hussain M, Chen L, Huang Q, Huang W, Tao T. Sodium alkoxide-mediated g-C 3N 4 immobilized on a composite nanofibrous membrane for preferable photocatalytic activity. RSC Adv 2022; 12:15378-15384. [PMID: 35693247 PMCID: PMC9121215 DOI: 10.1039/d2ra02441a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
Sodium alkoxide-mediated g-C3N4 is presented to fabricate flexible electrospun polyacrylonitrile nanofibers for the first time.
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Affiliation(s)
- Xue Li
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Qin Wu
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Mushraf Hussain
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Reading Academy, NUIST-UoR International Research Institute, Nanjing 210044, P. R. China
| | - Liang Chen
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Qiong Huang
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Wei Huang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Tao Tao
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Reading Academy, NUIST-UoR International Research Institute, Nanjing 210044, P. R. China
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7
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Gajurel S, Dam B, Bhushan M, Singh LR, Pal AK. CuO–NiO bimetallic nanoparticles supported on graphitic carbon nitride with enhanced catalytic performance for the synthesis of 1,2,3‐triazoles, bis‐1,2,3‐triazoles, and tetrazoles in parts per million level. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sushmita Gajurel
- Department of Chemistry, Centre for Advanced Studies North‐Eastern Hill University Shillong Meghalaya India
| | - Binoyargha Dam
- Department of Chemistry Indian Institute of Technology‐Guwahati Guwahati Assam India
- Department of Nanotechnology North‐Eastern Hill University Shillong Meghalaya India
| | - Mayank Bhushan
- Department of Nanotechnology North‐Eastern Hill University Shillong Meghalaya India
| | - L. Robindro Singh
- Department of Nanotechnology North‐Eastern Hill University Shillong Meghalaya India
| | - Amarta Kumar Pal
- Department of Chemistry, Centre for Advanced Studies North‐Eastern Hill University Shillong Meghalaya India
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8
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Mohanty L, Pattanayak DS, Dash SK. An efficient ternary photocatalyst Ag/ZnO/g-C3N4 for degradation of RhB and MG under solar radiation. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Designing Ag2O modified g-C3N4/TiO2 ternary nanocomposites for photocatalytic organic pollutants degradation performance under visible light: Synergistic mechanism insight. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127472] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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10
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Xu J, Liu Y, Li X, Chen M. Construction of Z-scheme Bi 3TaO 7/Zn 0.5Cd 0.5S composites with high efficiency for levofloxacin degradation under visible light irradiation. Dalton Trans 2021; 50:14920-14931. [PMID: 34609401 DOI: 10.1039/d1dt02539b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct Z-scheme Bi3TaO7/Zn0.5Cd0.5S composite photocatalysts were successfully prepared via an in situ growth hydrothermal method. The photocatalytic activities of composites were investigated by the degradation of levofloxacin under visible light. All composites exhibited enhanced photocatalytic activities compared with Bi3TaO7 and Zn0.5Cd0.5S. The structure composition and photoelectric performance of the photocatalysts were investigated by related experiments. The dominant active species (h+ and ˙O2-) during levofloxacin degradation were identified through capture experiments. Meanwhile, the stability and cyclicity of the optimal photocatalyst (BZCS-2) were studied by cycling experiments. Finally, we proposed a possible direct Z-scheme charge-migration mechanism for levofloxacin degradation. This work would provide a feasible idea and theoretical support for the in-depth research of direct Z-scheme photocatalysts and ZnxCd1-xS-based semiconductor materials in the future.
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Affiliation(s)
- Jingjing Xu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science and Technology, Nanjing, China.
| | - Yang Liu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science and Technology, Nanjing, China.
| | - Xueping Li
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science and Technology, Nanjing, China.
| | - Mindong Chen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science and Technology, Nanjing, China.
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11
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Kampalapura Swamy C, Hezam A, Mavinakere Ramesh A, Habbanakuppe Ramakrishnegowda D, K. Purushothama D, Krishnegowda J, Kanchugarakoppal S. R, Shivanna S. Microwave hydrothermal synthesis of copper induced ZnO/gC3N4 heterostructure with efficient photocatalytic degradation through S-scheme mechanism. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113394] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Koiki BA, Arotiba OA. Cu 2O as an emerging semiconductor in photocatalytic and photoelectrocatalytic treatment of water contaminated with organic substances: a review. RSC Adv 2020; 10:36514-36525. [PMID: 35517951 PMCID: PMC9057044 DOI: 10.1039/d0ra06858f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022] Open
Abstract
A wide range of semiconductor photocatalysts have been used over the years in water treatment to eliminate toxic organic substances from wastewater. The quest for visible or solar light driven photocatalysts with striking merits such as wide range of applications, ease of preparation, tailored architecture that gives rise to improved performance, ability of dual existence as both p type or n type semiconductor, among others, presents copper(i) oxide as a promising photocatalyst. This paper reviews the recent applications of Cu2O in photocatalytic and photoelectrocatalytic treatment of water laden with organic pollutants such as dyes and pharmaceuticals. It covers the various modes of synthesis, morphologies and composites or heterostructures of Cu2O as found in the literature. Concluding remarks and future perspectives on the application of Cu2O are presented.
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Affiliation(s)
- Babatunde A Koiki
- Department of Chemical Sciences, University of Johannesburg South Africa
| | - Omotayo A Arotiba
- Department of Chemical Sciences, University of Johannesburg South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg South Africa
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13
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Liu R, Yang W, He G, Zheng W, Li M, Tao W, Tian M. Ag-Modified g-C 3N 4 Prepared by a One-Step Calcination Method for Enhanced Catalytic Efficiency and Stability. ACS OMEGA 2020; 5:19615-19624. [PMID: 32803056 PMCID: PMC7424718 DOI: 10.1021/acsomega.0c02161] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
Ag-decorated g-C3N4 (denoted as Ag/CN-x) was prepared by a one-step calcination method, and the influences of calcination time on structure, morphology, surface composition, photocatalytic performance, and catalytic reduction activity of the prepared Ag/CN-x samples were investigated. The tests showed that the Ag/CN-8 prepared through by calcination for 8 h exhibited the best photocatalytic degradation efficiency of methyl orange (98.7% within 2 h) and the best catalytic reduction property of 4-nitrophenol (100% within 70 s). Meanwhile, these Ag/CN-x samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectra (DRS), photoluminescence (PL), photocurrent response, and electrochemical impedance spectroscopy (EIS) Nyquist plots. It was found that the Ag/CN-8 prepared through calcination for 8 h had a higher specific surface area, higher dispersibility of silver nanoparticles (Ag NPs), the widest range of visible light response, and the lowest photogenerated electron-hole recombination rate. The results of the trapping experiments indicated that a superoxide radical plays a major role. Moreover, a possible mechanism of photocatalytic degradation in methyl orange and catalytic reduction 4-nitrophenol was proposed.
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Affiliation(s)
- Runxue Liu
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
| | - Wanliang Yang
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
| | - Guiwei He
- International Research Center for Renewable
Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, China
| | - Wei Zheng
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
| | - Maokun Li
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
| | - Wenliang Tao
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
| | - Mengkui Tian
- College of Chemistry
and Chemical Engineering, Guizhou University, Guizhou 550025, China
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14
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Zhang H, Guan W, Zhang L, Guan X, Wang S. Degradation of an Organic Dye by Bisulfite Catalytically Activated with Iron Manganese Oxides: The Role of Superoxide Radicals. ACS OMEGA 2020; 5:18007-18012. [PMID: 32743173 PMCID: PMC7391359 DOI: 10.1021/acsomega.0c01257] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/30/2020] [Indexed: 05/11/2023]
Abstract
Metal-activated bisulfite systems have been widely used to treat recalcitrant wastewater. However, due to the disadvantages of their narrow effective pH range and difficulty in recovering metal ions, homogeneous systems are severely limited in practical applications. To overcome these problems, Fe/Mn bimetallic catalysts with different molar ratios were prepared using a simple sol-gel method to activate bisulfite. Influential factors, such as catalyst and system types, catalyst dosage, bisulfite concentration, pH value, and bisulfite addition modes, were investigated. The new system exhibited a wide effective pH range and high degradation efficiency, and it was found that the dissolved oxygen content played an important role in the activation system. The radical quenching test showed that a superoxide radical (O2 •-), instead of a hydroxyl radical (HO•) or a sulfate radical (SO4 •-), was the main oxide species for the degradation of rhodamine B (RhB).
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Affiliation(s)
- Haifeng Zhang
- School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Wenjia Guan
- School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Lanhe Zhang
- School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Xiaohui Guan
- School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Shengli Wang
- School of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China
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15
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Yan Q, Zhi N, Yang L, Xu G, Feng Q, Zhang Q, Sun S. A highly sensitive uric acid electrochemical biosensor based on a nano-cube cuprous oxide/ferrocene/uricase modified glassy carbon electrode. Sci Rep 2020; 10:10607. [PMID: 32606291 PMCID: PMC7327035 DOI: 10.1038/s41598-020-67394-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/08/2020] [Indexed: 11/17/2022] Open
Abstract
A uric acid (UA) electrochemical biosensor was constructed using ferrocene (Fc) decorated cuprous oxide (Cu2O) enhanced electro-active characteristics and covalently immobilized with uricase (UOx) on glassy carbon electrode (GCE). The electrochemical characteristics of the fabricated electrode was analysed by cyclic voltammetry, electrochemical impedance spectroscopy and differential pulse voltammetry (DPV). DPV studies revealed rapid response of fabricated electrode UOx/Fc/Cu2O/GCE towards UA in a wide concentration range of 0.1–1,000 μM with a sensitivity of 1.900 μA mM−1 cm−2 and very low detection limit of 0.0596 μM. A very low magnitude Michaelis–Menten constant (Km) value was evaluated as 34.7351 μM which indicated the chemical attraction of the enzyme towards the UA was much higher. The developed biosensor was successfully applied to detect UA in human urine samples. Moreover, reproducibility and stability studies demonstrated the fabricated UOx/Fc/Cu2O/GCE biosensor had high reproducibility with a RSD of 2.8% and good reusability with a RSD of 3.2%. Specificity studies results showed the fabricated biosensor had strong anti-interference ability. The improved sensor performance was attributed to the synergistic electronic properties of Cu2O and Fc that provided enhances delectrocatalytic activity and electron transfer. The present biosensor can be extended for use in clinical settings.
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Affiliation(s)
- Qinghua Yan
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Na Zhi
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Li Yang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China.
| | - Guangri Xu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Qigao Feng
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Qiqing Zhang
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, China.,Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Shujuan Sun
- The Hospital of Eighty-Third Group Army, Xinxiang, 453000, China
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