|
1
|
Fu S, Huang Z, Wang Y, Zheng B, Yuan W, Li L, Deng P, Zhu H, Zhang H, Liu B. Fabrication of a Novel Z-Scheme AgBiO 3/BiOCl Heterojunction with Excellent Photocatalytic Performance towards Organic Pollutant. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4615. [PMID: 39336356 PMCID: PMC11433391 DOI: 10.3390/ma17184615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Revised: 08/29/2024] [Accepted: 09/11/2024] [Indexed: 09/30/2024]
Abstract
A novel and highly efficient photocatalyst of a AgBiO3/BiOCl heterojunction has been developed via a facile water bath and in situ precipitation method. The photocatalytic activities of the catalysts were investigated by the degradation of ciprofloxacin (CIP) under visible-light irradiation (>420 nm). The experiment results revealed that the photocatalytic performance of the optimized AgBiO3/BiOCl heterojunction was much higher than pure AgBiO3 and BiOCl. The degradation efficiency of the as-prepared AgBiO3/BiOCl heterojunction (ABC-30) for CIP could reach 88% within 160 min, with 2.89 and 3.76 times higher activity than pure AgBiO3 and BiOCl, respectively. The improved photocatalytic performance of AgBiO3/BiOCl was attributed to the synergistic effect of the enhanced light absorption range and effective separation and transfer of the photo-induced charge carrier. The optimized heterojunction showed broad-spectrum catalytic activities towards various organic contaminants. The degradation efficiencies varied with the nature of the pollutant and decreased in the following order: Lanasol Red 5B (100%) > methyl orange (99%) > methylene blue (98%) > tetracycline (92%) > ciprofloxacin (88%) > ofloxacin (85%) > norfloxacin (78%) > rhodamine B (59%) > metronidazole (43%) > phenol (40%) > carbamazepine (20%). Furthermore, the trapping experiments and ESR indicated that superoxide radicals and holes were the main reactive species.
Collapse
Affiliation(s)
- Shuai Fu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
- Henan Engineering Research Center of Water Quality Safety in the Middle-Lower Yellow River, Henan Green Technology Innovation Demonstration Base, Luoyang 471023, China
| | - Zhiquan Huang
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
- Henan Engineering Research Center of Water Quality Safety in the Middle-Lower Yellow River, Henan Green Technology Innovation Demonstration Base, Luoyang 471023, China
| | - Yanhong Wang
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
- Henan Engineering Research Center of Water Quality Safety in the Middle-Lower Yellow River, Henan Green Technology Innovation Demonstration Base, Luoyang 471023, China
| | - Bingqian Zheng
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Yuan
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
| | - Leicheng Li
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
| | - Peiyuan Deng
- Biological Species Resource Research Key Laboratory, Zhengzhou Normal University, Zhengzhou 450044, China
| | - Huijie Zhu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
- Henan Engineering Research Center of Water Quality Safety in the Middle-Lower Yellow River, Henan Green Technology Innovation Demonstration Base, Luoyang 471023, China
| | - Hui Zhang
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
| | - Bo Liu
- Laboratory of Functional Molecular and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| |
Collapse
|
|
2
|
Fu S, Chu Z, Huang Z, Dong X, Bie J, Yang Z, Zhu H, Pu W, Wu W, Liu B. Construction of Z-scheme AgCl/BiOCl heterojunction with oxygen vacancies for improved pollutant degradation and bacterial inactivation. RSC Adv 2024; 14:3888-3899. [PMID: 38283591 PMCID: PMC10811567 DOI: 10.1039/d3ra08514g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/16/2024] [Indexed: 01/30/2024] Open
Abstract
A facile Z-scheme AgCl/BiOCl heterojunction photocatalyst with oxygen vacancies was fabricated by a water-bath method. The structural, morphological, optical and electronic properties of as-synthesized samples were systematically characterized. The oxygen vacancies were confirmed by EPR, which could optimize the band-gap of the AgCl/BiOCl heterojunction and improve the photo-induced electron transfer. The optimized AgCl/BiOCl heterojunction showed excellent photocatalytic degradation efficiency (82%) for tetracycline (TC). Simultaneously, E. coli was completely inactivated within 60 min due to the AgCl/BiOCl heterojunction. The elevated catalytic activity of the optimal AgCl/BiOCl heterojunction was ascribed to the synergistic effect of the enhanced light absorption and effective photoinduced charge carrier separation and transfer. Moreover, the degradation efficiency of the AgCl/BiOCl heterojunction towards ofloxacin, norfloxacin and Lanasol Red 5B was 73%, 74% and 96%, respectively. The experimental factors for the degradation efficiency of TC were also studied. Furthermore, active species trapping experiments indicated that superoxide radicals (˙O2-) were the main reactive species, and the Z-scheme charge transfer mechanism helped to improve the photocatalytic activity.
Collapse
Affiliation(s)
- Shuai Fu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
- Henan Engineering Research Center of Water Quality Safety in the Middle-lower Yellow River, Henan Green Technology Innovation Demonstration Base Luoyang 471023 Henan PR China
| | - Zhiliang Chu
- The 989th Hospital, Department of Central Laboratory Luoyang 471031 Henan PR China
| | - Zhiquan Huang
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
- Henan Engineering Research Center of Water Quality Safety in the Middle-lower Yellow River, Henan Green Technology Innovation Demonstration Base Luoyang 471023 Henan PR China
| | - Xiaomei Dong
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
| | - Junhong Bie
- Henan Communications Planning & Design Institute Co., Ltd Zhengzhou 450046 Henan PR China
| | - Zhe Yang
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
- Henan Engineering Research Center of Water Quality Safety in the Middle-lower Yellow River, Henan Green Technology Innovation Demonstration Base Luoyang 471023 Henan PR China
| | - Huijie Zhu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
- Henan Engineering Research Center of Water Quality Safety in the Middle-lower Yellow River, Henan Green Technology Innovation Demonstration Base Luoyang 471023 Henan PR China
| | - Wanyu Pu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
| | - Wanzhe Wu
- Henan International Joint Laboratory of New Civil Engineering Structure, College of Civil Engineering, Luoyang Institute of Science and Technology Luoyang 471023 Henan PR China
| | - Bo Liu
- Laboratory of Functional Molecular and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology Zibo 255000 Shandong PR China
| |
Collapse
|