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Li H, Jian S, Baalousha M. Applications of Catalytic Nanomaterials in Energy and Environment. Molecules 2023; 28:molecules28104000. [PMID: 37241741 DOI: 10.3390/molecules28104000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 04/28/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Nanotechnology is a crucial technology for the development of science and technology [...].
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Affiliation(s)
- Hongda Li
- Liuzhou Key Laboratory for New Energy Vehicle Power Lithium Battery, School of Electronic Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Shuai Jian
- Liuzhou Key Laboratory for New Energy Vehicle Power Lithium Battery, School of Electronic Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, 921 Assembly Street, Columbia, SC 29208, USA
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França R, Araujo FP, Neves L, Melo A, Lins A, Soares AS, Osajima JA, Guerra Y, Almeida LC, Peña-Garcia RR. Photoresponsive Activity of the Zn 0.94Er 0.02Cr 0.04O Compound with Hemisphere-like Structure Obtained by Co-Precipitation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1446. [PMID: 36837077 PMCID: PMC9964239 DOI: 10.3390/ma16041446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
In this work, a ZnO hemisphere-like structure co-doped with Er and Cr was obtained by the co-precipitation method for photocatalytic applications. The dopant's effect on the ZnO lattice was investigated using X-ray diffraction, Raman, photoluminescence, UV-Vis and scanning electron microscopy/energy dispersive spectroscopy techniques. The photocatalytic response of the material was analyzed using methylene blue (MB) as the model pollutant under UV irradiation. The wurtzite structure of the Zn0.94Er0.02Cr0.04O compound presented distortions in the lattice due to the difference between the ionic radii of the Cr3+, Er3+ and Zn2+ cations. Oxygen vacancy defects were predominant, and the energy competition of the dopants interfered in the band gap energy of the material. In the photocatalytic test, the MB degradation rate was 42.3%. However, using optimized H2O2 concentration, the dye removal capacity reached 90.1%. Inhibitor tests showed that •OH radicals were the main species involved in MB degradation that occurred without the formation of toxic intermediates, as demonstrated in the ecotoxicity assays in Artemia salina. In short, the co-doping with Er and Cr proved to be an efficient strategy to obtain new materials for environmental remediation.
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Affiliation(s)
- Robson França
- Programa de Pós-Graduação em Engenharia Física, Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Francisca Pereira Araujo
- Programa de Pós-Graduação em Engenharia Física, Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Luan Neves
- Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Arthur Melo
- Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Alexsandro Lins
- Programa de Pós-Graduação em Engenharia Física, Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Adriano Santana Soares
- Programa de Pós-Graduação em Ciências e Engenharia dos Materiais, Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil
| | - Josy Anteveli Osajima
- Programa de Pós-Graduação em Ciências e Engenharia dos Materiais, Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil
| | - Yuset Guerra
- Departamento de Física, Universidade Federal do Piauí, Teresina 64049-550, PI, Brazil
| | - Luciano Costa Almeida
- Departamento de Engenharia Química, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil
| | - Ramón Raudel Peña-Garcia
- Programa de Pós-Graduação em Engenharia Física, Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
- Unidade Acadêmica do Cabo de Santo Agostinho, Universidade Federal Rural de Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
- Programa de Pós-Graduação em Ciências e Engenharia dos Materiais, Universidade Federal de Piauí, Teresina 64049-550, PI, Brazil
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Effect of Ti-doping on photocatalytic activity of ZnO nanocatalyst under sunlight irradiation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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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] [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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