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Tiwari S, Yadav P, Ganguli AK. Enhancing the activity and stability of Cu 2O nanorods via coupling with a NaNbO 3/SnS 2 heterostructure for photoelectrochemical water-splitting. NEW J CHEM 2023. [DOI: 10.1039/d3nj00684k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
We synthesized a stable copper-based heterostructure catalyst, NaNbO3/SnS2/Cu2O for photoelectrochemical water-splitting applications with improved activity, stability, and inhibited photocorrosion in Cu2O.
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Affiliation(s)
- Shalini Tiwari
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Priyanka Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Ashok K. Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
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2
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Mao T, Liu M, Lin L, Cheng Y, Fang C. A Study on Doping and Compound of Zinc Oxide Photocatalysts. Polymers (Basel) 2022; 14:4484. [PMID: 36365478 PMCID: PMC9657537 DOI: 10.3390/polym14214484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 07/30/2023] Open
Abstract
As an excellent semiconductor photocatalyst, zinc oxide is widely used in the field of photocatalysis and is regarded as one of the most reliable materials to solve environmental problems. However, because its band gap energy limits the absorption of visible light and reduces the efficiency of catalytic degradation, it needs to be doped with other substances or compounded with other substances and precious metal. This paper summarizes the research on this aspect at home and abroad in recent years, introduces the doping of transition metal ions by zinc oxide, the compounding of zinc oxide with precious metals or other semiconductors, and the prospect of further improving the catalytic efficiency of zno photocatalyst is also put forward.
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Affiliation(s)
- Tan Mao
- College of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, China
- College of Printing, Packaging and Digital Media, Xi’an University of Technology, Xi’an 710000, China
| | - Mengchen Liu
- College of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, China
| | - Liyuan Lin
- College of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, China
| | - Youliang Cheng
- College of Printing, Packaging and Digital Media, Xi’an University of Technology, Xi’an 710000, China
| | - Changqing Fang
- College of Printing, Packaging and Digital Media, Xi’an University of Technology, Xi’an 710000, China
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3
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Koiki BA, Orimolade BO, Zwane BN, Nkwachukwu OV, Muzenda C, Ojo BO, Nkosi D, Mabuba N, Arotiba OA. Sulphate radical enhanced photoelectrochemical degradation of sulfamethoxazole on a fluorine doped tin oxide - copper(I) oxide photoanode. J Electroanal Chem (Lausanne) 2021; 900:115714. [DOI: 10.1016/j.jelechem.2021.115714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Koiki BA, Orimolade BO, Zwane BN, Nkwachukwu OV, Muzenda C, Nkosi D, Arotiba OA. The application of FTO-Cu 2O/Ag 3PO 4 heterojunction in the photoelectrochemical degradation of emerging pharmaceutical pollutant under visible light irradiation. Chemosphere 2021; 266:129231. [PMID: 33307414 DOI: 10.1016/j.chemosphere.2020.129231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/26/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
We report the photoelectrochemical application of a visible light active FTO-Cu2O/Ag3PO4 photoanode for the abatement of sulfamethoxazole in water. The as-synthesised photoanodes were characterised using XRD, field emission SEM, EDX, diffuse reflectance UV-vis, impedance spectroscopy and chronoamperometry. The results obtained confirmed a successful formation of p-n heterojunction at the Cu2O/Ag3PO4 interface. The highest photocurrent response of 0.62 mAcm-2 was obtained for the composite photoanode which was four times higher than pure Cu2O and about three times higher than pristine Ag3PO4. The photoanode gave 67% removal efficiency within 2 h upon its photoelectrochemical application in the degradation of sulfamethoxazole with 1.5 V bias potential at pH 6.2. The FTO-Cu2O/Ag3PO4 electrode was also applied in the treatment of a cocktail of synthetic organics containing sulfamethoxazole and orange II dye. The photogenerated holes was found to be the major oxidant and the photoanodes was stable and reusable.
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Affiliation(s)
- Babatunde A Koiki
- Department of Chemical Sciences, University of Johannesburg, South Africa
| | | | - Busisiwe N Zwane
- Department of Chemical Sciences, University of Johannesburg, South Africa; DST/Mintek Nanotechnology Innovation Centre, University of Johannesburg, South Africa
| | | | - Charles Muzenda
- Department of Chemical Sciences, University of Johannesburg, South Africa
| | - Duduzile Nkosi
- 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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5
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Kusmierek E. A CeO2 Semiconductor as a Photocatalytic and Photoelectrocatalytic Material for the Remediation of Pollutants in Industrial Wastewater: A Review. Catalysts 2020; 10:1435. [DOI: 10.3390/catal10121435] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The direct discharge of industrial wastewater into the environment results in serious contamination. Photocatalytic treatment with the application of sunlight and its enhancement by coupling with electrocatalytic degradation offers an inexpensive and green technology enabling the total removal of refractory pollutants such as surfactants, pharmaceuticals, pesticides, textile dyes, and heavy metals, from industrial wastewater. Among metal oxide—semiconductors, cerium dioxide (CeO2) is one of the photocatalysts most commonly applied in pollutant degradation. CeO2 exhibits promising photocatalytic activity. Nonetheless, the position of conduction bands (CB) and valence bands (VB) in CeO2 limits its application as an efficient photocatalyst utilizing solar energy. Its photocatalytic activity in wastewater treatment can be improved by various modification techniques, including changes in morphology, doping with metal cation dopants and non-metal dopants, coupling with other semiconductors, and combining it with carbon supporting materials. This paper presents a general overview of CeO2 application as a single or composite photocatalyst in the treatment of various pollutants. The photocatalytic characteristics of CeO2 and its composites are described. The main photocatalytic reactions with the participation of CeO2 under UV and VIS irradiation are presented. This review summarizes the existing knowledge, with a particular focus on the main experimental conditions employed in the photocatalytic and photoelectrocatalytic degradation of various pollutants with the application of CeO2 as a single and composite photocatalyst.
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6
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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7
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Jiang N, Geng H, Qiao Y, Zhu X, Li C, Cai Q. A visible-light-active CuInSe2:Zn/g-C3N4/TiO2 nanowires for photoelectrocatalytic bactericidal effects. NEW J CHEM 2020. [DOI: 10.1039/c9nj04320a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light-active CuInSe2:Zn/g-C3N4/TiO2 nanowire (NW) photoelectrode was prepared by in situ growth of g-C3N4 on the surface of TiO2 NWs, followed by drop deposition of Zn-doped CuInSe2 quantum dots (CuInSe2:Zn QDs).
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Affiliation(s)
- Ning Jiang
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Hongchao Geng
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Yan Qiao
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Xingqi Zhu
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Chenyi Li
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Qingyun Cai
- State Key Lab of Chemo/Biosensing & Chemometrics
- College of Chemistry & Chemical Engineering
- Hunan University
- Changsha 410082
- China
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8
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Zhao H, Kang J, Nan H, Yang G, Wei H, Chen H, Wang G, Lin H. Preparation and Enhanced UV-Visible Light Photoelectrocatalytic Activity of TiO 2
-Fe 2
O 3
/Cu Ternary Nanocomposites. ChemistrySelect 2019. [DOI: 10.1002/slct.201803345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hexi Zhao
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Jie Kang
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Hui Nan
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Guijun Yang
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Haomin Wei
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Huiyuan Chen
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Gang Wang
- School of Chemistry and Chemical Engineering; Qinghai Nationalities University; Xining 810007 China
| | - Hong Lin
- State Key Laboratory of New Ceramics & Fine Processing; School of Materials Science and Engineering; Tsinghua University; Beijing 100084 China
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9
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Zhao H, Zalfani M, Li C, Liu J, Hu Z, Mahdouani M, Bourguiga R, Li Y, Su B. Cascade electronic band structured zinc oxide/bismuth vanadate/three-dimensional ordered macroporous titanium dioxide ternary nanocomposites for enhanced visible light photocatalysis. J Colloid Interface Sci 2019; 539:585-97. [DOI: 10.1016/j.jcis.2018.12.076] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 11/16/2022]
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10
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Zhao G, Zhang D, Huang Y, Yu J, Jiang X, Jiao F. Highly efficient degradation of 2-chlorophenol and methylene blue with Rb 0.27 WO 3 /NiFe-CLDH composites under visible light irradiation. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.06.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Umukoro EH, Kumar N, Ngila JC, Arotiba OA. Expanded graphite supported p-n MoS2-SnO2 heterojunction nanocomposite electrode for enhanced photo-electrocatalytic degradation of a pharmaceutical pollutant. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.027] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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12
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Wang F, Kan Z, Cao F, Guo Q, Xu Y, Qi C, Li C. Synergistic effects of CdS in sodium titanate based nanostructures for hydrogen evolution. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.11.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Pirhashemi M, Habibi-yangjeh A, Rahim Pouran S. Review on the criteria anticipated for the fabrication of highly efficient ZnO-based visible-light-driven photocatalysts. J IND ENG CHEM 2018; 62:1-25. [DOI: 10.1016/j.jiec.2018.01.012] [Citation(s) in RCA: 525] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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14
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Umukoro EH, Peleyeju MG, Idris AO, Ngila JC, Mabuba N, Rhyman L, Ramasami P, Arotiba OA. Photoelectrocatalytic application of palladium decorated zinc oxide-expanded graphite electrode for the removal of 4-nitrophenol: experimental and computational studies. RSC Adv 2018; 8:10255-10266. [PMID: 35540454 PMCID: PMC9078825 DOI: 10.1039/c8ra00180d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/08/2018] [Indexed: 12/24/2022] Open
Abstract
A novel Pd-ZnO-expanded graphite (EG) photoelectrode was constructed from a Pd-ZnO-EG nanocomposite synthesised by a hydrothermal method and characterised using various techniques such as X-ray diffractometry (XRD), Raman spectroscopy, UV-Vis diffuse reflectance spectroscopy, nitrogen adsorption-desorption analysis, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). Cyclic voltammetry and photocurrent response measurements were also carried out on the electrode. The Pd-ZnO-EG electrode was employed in the photoelectrocatalytic removal of 4-nitrophenol as a target water pollutant at a neutral pH and with a current density of 7 mA cm-2. Optical studies revealed that the Pd-ZnO-EG absorbed strongly in the visible light region. The Pd-ZnO-EG electrode showed improved photoelectrocatalytic activity in relation to ZnO-EG and EG electrodes for the removal of the 4-nitrophenol. The photocurrent responses showed that the Pd-ZnO-EG nanocomposite electrode could be employed as a good photoelectrode for photoelectrocatalytic processes and environmental remediation such as treatment of industrial waste waters. Density functional theory method was used to model the oxidative degradation of 4-nitrophenol by the hydroxyl radical which generates hydroquinone, benzoquinone, 4-nitrocatechol, 4-nitroresorcinol and the opening of the 4-nitrophenol ring. Furthermore, the hydroxyl radical is regenerated and can further oxidise the ring structure and initiate a new degradation process.
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Affiliation(s)
| | - Moses G Peleyeju
- Department of Applied Chemistry, University of Johannesburg South Africa
| | - Azeez O Idris
- Department of Applied Chemistry, University of Johannesburg South Africa
| | - Jane C Ngila
- Department of Applied Chemistry, University of Johannesburg South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg South Africa
| | - Nonhlangabezo Mabuba
- Department of Applied Chemistry, University of Johannesburg South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg South Africa
| | - Lydia Rhyman
- Department of Applied Chemistry, University of Johannesburg South Africa
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius Réduit 80837 Mauritius
| | - Ponnadurai Ramasami
- Department of Applied Chemistry, University of Johannesburg South Africa
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius Réduit 80837 Mauritius
| | - Omotayo A Arotiba
- Department of Applied Chemistry, University of Johannesburg South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg South Africa
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15
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Fan W, Zhu Z, Yu Y, Liu Z, Li C, Huo P, Qiu Y, Yan Y. Fabrication of magnetic g-C3N4 for effectively enhanced tetracycline degradation with RGO as mediator. NEW J CHEM 2018. [DOI: 10.1039/c8nj02994f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, the ternary hybrid photocatalyst Fe3O4@g-C3N4/RGO is developed by a facile hydrothermal method, which shows a satisfactory degradation rate (90%) and stability in degrading tetracycline.
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Affiliation(s)
- Wenqian Fan
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University
- Dalian 116029
- P. R. China
| | - Zhi Zhu
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University
- Zhen Jiang 212000
- P. R. China
| | - Yang Yu
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University
- Zhen Jiang 212000
- P. R. China
| | - Zhi Liu
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University
- Dalian 116029
- P. R. China
| | - Chunxiang Li
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University
- Zhen Jiang 212000
- P. R. China
| | - Pengwei Huo
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University
- Zhen Jiang 212000
- P. R. China
| | - Yue Qiu
- Grimwade Centre for Cultural Materials Conservation, School of Historical and Philosophical Studies, Faculty of Arts, University of Melbourne
- Victoria
- Australia
| | - Yongsheng Yan
- Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University
- Zhen Jiang 212000
- P. R. China
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16
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Li MY, Tang YB, Shi WL, Chen FY, Shi Y, Gu HC. Design of visible-light-response core–shell Fe2O3/CuBi2O4 heterojunctions with enhanced photocatalytic activity towards the degradation of tetracycline: Z-scheme photocatalytic mechanism insight. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00906f] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Core–shell Fe2O3/CuBi2O4 heterojunction photocatalysts with enhanced photocatalytic activity were fabricated through one-step hydrothermal method.
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Affiliation(s)
- Ming-yang Li
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Yu-bin Tang
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Wei-long Shi
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
- School of Material Science and Engineering
| | - Fang-yan Chen
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Yu Shi
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Hao-chen Gu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
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17
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Hong W, Meng M, Liu Q, Gao D, Kang C, Huang S, Zhou Z, Chen C. Antibacterial and photocatalytic properties of Cu2O/ZnO composite film synthesized by electrodeposition. Res Chem Intermed 2017; 43:2517-28. [DOI: 10.1007/s11164-016-2777-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Hou L, Wang L, Royer S, Zhang H. Ultrasound-assisted heterogeneous Fenton-like degradation of tetracycline over a magnetite catalyst. J Hazard Mater 2016; 302:458-467. [PMID: 26521091 DOI: 10.1016/j.jhazmat.2015.09.033] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 09/01/2015] [Accepted: 09/18/2015] [Indexed: 06/05/2023]
Abstract
The degradation of tetracycline over Fe3O4 catalyst was studied by using a coupled ultrasound/heterogeneous Fenton process. The effects of some key reaction parameters, the evolution of toxicity, and the reaction mechanism were investigated. Experimental results showed that the stability of catalyst was significantly improved when ultrasound was employed. Under optimal conditions, 93.6% of tetracycline was removed after 60 min of treatment. The removal efficiency of the total organic carbon (TOC) at 60 min was 31.8%. The surface hydroxyl radicals were identified as the major reactive species during the oxidation process. Toxicity tests with Daphnia magna indicated that the toxicity of the solution increased during the first 60 min and then decreased as the oxidation proceeded.
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Affiliation(s)
- Liwei Hou
- Department of Environmental Engineering, Wuhan University, Wuhan 430079, China; College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China; Université de Poitiers, IC2MP UMR 7285 CNRS, 4 rue Michel Brunet, 86022 Poitiers Cedex, France
| | - Liguo Wang
- Department of Environmental Engineering, Wuhan University, Wuhan 430079, China
| | - Sébastien Royer
- Université de Poitiers, IC2MP UMR 7285 CNRS, 4 rue Michel Brunet, 86022 Poitiers Cedex, France.
| | - Hui Zhang
- Department of Environmental Engineering, Wuhan University, Wuhan 430079, China.
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19
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Zhang X, Yang Y, Que W, Du Y. Synthesis of high quality CuO nanoflakes and CuO–Au nanohybrids for superior visible light photocatalytic behavior. RSC Adv 2016. [DOI: 10.1039/c6ra12281g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High-quality CuO nanoflakes and CuO–Au nanohybrids are synthesized by a facile wet chemistry strategy. Compared with pure CuO nanoflakes, CuO–Au nanohybrids exhibit superior visible light-driven photocatalytic performance and have a higher photocurrent density (46 mA cm−2).
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Affiliation(s)
- Xinyu Zhang
- Frontier Institute of Science and Technology jointly with College of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Yawei Yang
- Electronic Materials Research Laboratory
- International Center for Dielectric Research
- Key Laboratory of the Ministry of Education
- School of Electronic & Information Engineering
- Xi'an Jiaotong University
| | - Wenxiu Que
- Electronic Materials Research Laboratory
- International Center for Dielectric Research
- Key Laboratory of the Ministry of Education
- School of Electronic & Information Engineering
- Xi'an Jiaotong University
| | - Yaping Du
- Frontier Institute of Science and Technology jointly with College of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
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20
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Umukoro EH, Peleyeju MG, Ngila JC, Arotiba OA. Photoelectrochemical degradation of orange II dye in wastewater at a silver–zinc oxide/reduced graphene oxide nanocomposite photoanode. RSC Adv 2016. [DOI: 10.1039/c6ra04156f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Degradation of dye monitored by visible spectrophotometry. Inset a: photocurrent response of the photoanode; inset b: proposed photoelectrochemical mechanism.
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Affiliation(s)
- Eseoghene H. Umukoro
- Department of Applied Chemistry
- University of Johannesburg
- Doornfontein 2028
- South Africa
| | - Moses G. Peleyeju
- Department of Applied Chemistry
- University of Johannesburg
- Doornfontein 2028
- South Africa
| | - Jane C. Ngila
- Department of Applied Chemistry
- University of Johannesburg
- Doornfontein 2028
- South Africa
- Centre for Nanomaterials Science Research
| | - Omotayo A. Arotiba
- Department of Applied Chemistry
- University of Johannesburg
- Doornfontein 2028
- South Africa
- Centre for Nanomaterials Science Research
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Huang K, Hong Y, Yan X, Huang C, Chen J, Chen M, Shi W, Liu C. Hydrothermal synthesis of g-C3N4/CdWO4nanocomposite and enhanced photocatalytic activity for tetracycline degradation under visible light. CrystEngComm 2016. [DOI: 10.1039/c6ce01019a] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Luo B, Xu D, Li D, Wu G, Wu M, Shi W, Chen M. Fabrication of a Ag/Bi3TaO7 Plasmonic Photocatalyst with Enhanced Photocatalytic Activity for Degradation of Tetracycline. ACS Appl Mater Interfaces 2015; 7:17061-17069. [PMID: 26167624 DOI: 10.1021/acsami.5b03535] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel Ag/Bi3TaO7 plasmonic photocatalyst has been prepared by a simple photoreduction process. The as-prepared Ag/Bi3TaO7 photocatalyst exhibited an enhanced photocatalytic activity for the degradation of tetracycline (TC) compared to that of a bare Bi3TaO7 catalyst. The 1 wt % Ag-loaded Bi3TaO7 sample showed the highest photocatalytic efficiency for TC degradation (85.42%) compared with those of the other samples. The enhanced photocatalytic activity could be ascribed to the synergistic effect of the surface plasmon resonance caused by Ag nanoparticles. Electrochemical impedance spectroscopy demonstrated that the incorporation of silver nanoparticles onto the Bi3TaO7 surface promoted the separation of photogenerated carriers. In addition, an electron spin resonance (ESR) and trapping experiment revealed that the photoinduced active species hydroxyl radical and superoxide radical were the main active species in the photocatalytic process of TC degradation. The photocatalytic reaction mechanism was discussed by active species trapping and ESR analysis.
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Affiliation(s)
- Bifu Luo
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Dongbo Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Di Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Guoling Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Miaomiao Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Min Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
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Hamrouni A, Moussa N, Di Paola A, Palmisano L, Houas A, Parrino F. Photocatalytic activity of binary and ternary SnO2–ZnO–ZnWO4 nanocomposites. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2015.05.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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24
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Nguyen MA, Bedford NM, Ren Y, Zahran EM, Goodin RC, Chagani FF, Bachas LG, Knecht MR. Direct Synthetic Control over the Size, Composition, and Photocatalytic Activity of Octahedral Copper Oxide Materials: Correlation Between Surface Structure and Catalytic Functionality. ACS Appl Mater Interfaces 2015; 7:13238-13250. [PMID: 26010080 DOI: 10.1021/acsami.5b04282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report a synthetic approach to form octahedral Cu2O microcrystals with a tunable edge length and demonstrate their use as catalysts for the photodegradation of aromatic organic compounds. In this particular study, the effects of the Cu(2+) and reductant concentrations and stoichiometric ratios were carefully examined to identify their roles in controlling the final material composition and size under sustainable reaction conditions. Varying the ratio and concentrations of Cu(2+) and reductant added during the synthesis determined the final morphology and composition of the structures. Octahedral particles were prepared at selected Cu(2+):glucose ratios that demonstrated a range of photocatalytic reactivity. The results indicate that material composition, surface area, and substrate charge effects play important roles in controlling the overall reaction rate. In addition, analysis of the post-reacted materials revealed photocorrosion was inhibited and that surface etching had preferentially occurred at the particle edges during the reaction, suggesting that the reaction predominately occurred at these interfaces. Such results advance the understanding of how size and composition affect the surface interface and catalytic functionality of materials.
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Affiliation(s)
- Michelle A Nguyen
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Nicholas M Bedford
- ‡Applied Chemicals and Materials Division, National Institute Standards and Technology, 325 Broadway, Boulder, Colorado 80305, United States
| | - Yang Ren
- §X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Elsayed M Zahran
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Robert C Goodin
- ∥Westminster Christian School, 6855 SW 152nd Street, Palmetto Bay, Florida 33157, United States
| | - Fatima F Chagani
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Leonidas G Bachas
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Marc R Knecht
- †Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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Kondalkar VV, Mali SS, Mane RM, Dandge PB, Choudhury S, Hong CK, Patil PS, Patil SR, Kim JH, Bhosale PN. Photoelectrocatalysis of Cefotaxime Using Nanostructured TiO2 Photoanode: Identification of the Degradation Products and Determination of the Toxicity Level. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501821a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Sipra Choudhury
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai, India
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26
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Li P, Liu C, Wu G, Heng Y, Lin S, Ren A, Lv K, Xiao L, Shi W. Solvothermal synthesis and visible light-driven photocatalytic degradation for tetracycline of Fe-doped SrTiO3. RSC Adv 2014. [DOI: 10.1039/c4ra06630h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, Fe-doped SrTiO3 (FSTO) photocatalysts were successfully prepared via a facile solvothermal method, and their photocatalytic activities for degrading tetracycline (TC) under visible light irradiation were examined.
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Affiliation(s)
- Ping Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Chunbo Liu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Guoling Wu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Yang Heng
- School of Hydraulic
- Energy and Power Engineering
- Yangzhou University
- Yangzhou, P. R. China
| | - Shuang Lin
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Ao Ren
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Kehan Lv
- School of Petrochemical Engineering
- Changzhou University
- Changzhou, P. R. China
| | - Lisong Xiao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang, P. R. China
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