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Li Y, Wang W, Chen L, Ma H, Lu X, Ma H, Liu Z. Visible-Light-Driven Z-Type Pg-C 3N 4/Nitrogen Doped Biochar/BiVO 4 Photo-Catalysts for the Degradation of Norfloxacin. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1634. [PMID: 38612148 PMCID: PMC11012328 DOI: 10.3390/ma17071634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024]
Abstract
Antibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C3N4 (PCN)/Nitrogen doped biochar (N-Biochar)/BiVO4 (NCBN) for the degradation of norfloxacin (NOR) was prepared by the hydrothermal method. The specific surface area of the NCBN (42.88 m2/g) was further improved compared to BiVO4 (4.528 m2/g). The photo-catalytic performance of the catalyst was investigated, and the N-Biochar acted as a charge transfer channel to promote carrier separation and form Z-type heterojunctions. Moreover, the NCBN exhibited excellent performance (92.5%) in removing NOR, which maintained 70% degradation after four cycles. The main active substance of the NCBN was •O2-, and the possible degradation pathways are provided. This work will provide a theoretical basis for the construction of heterojunction photo-catalysts.
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Affiliation(s)
- Yi Li
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Wenyu Wang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Lei Chen
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Huifang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xi Lu
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hongfang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhibao Liu
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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Huang Y, Yu J, Wu Z, Li B, Li M. All-inorganic lead halide perovskites for photocatalysis: a review. RSC Adv 2024; 14:4946-4965. [PMID: 38327811 PMCID: PMC10847908 DOI: 10.1039/d3ra07998h] [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: 11/22/2023] [Accepted: 01/11/2024] [Indexed: 02/09/2024] Open
Abstract
Nowadays, environmental pollution and the energy crisis are two significant concerns in the world, and photocatalysis is seen as a key solution to these issues. All-inorganic lead halide perovskites have been extensively utilized in photocatalysis and have become one of the most promising materials in recent years. The superior performance of all-inorganic lead halide perovskites distinguish them from other photocatalysts. Since pure lead halide perovskites typically have shortcomings, such as low stability, poor active sites, and ineffective carrier extraction, that restrict their use in photocatalytic reactions, it is crucial to enhance their photocatalytic activity and stability. Huge progress has been made to deal with these critical issues to enhance the effects of all-inorganic lead halide perovskites as efficient photocatalysts in a wide range of applications. In this manuscript, the synthesis methods of all-inorganic lead halide perovskites are discussed, and promising strategies are proposed for superior photocatalytic performance. Moreover, the research progress of photocatalysis applications are summarized; finally, the issues of all-inorganic lead halide perovskite photocatalytic materials at the current state and future research directions are also analyzed and discussed. We hope that this manuscript will provide novel insights to researchers to further promote the research on photocatalysis based on all-inorganic lead halide perovskites.
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Affiliation(s)
- Yajie Huang
- College of Forestry, Northeast Forestry University Harbin 150040 China +86-451-82192120
| | - Jiaxing Yu
- College of Forestry, Northeast Forestry University Harbin 150040 China +86-451-82192120
| | - Zhiyuan Wu
- College of Forestry, Northeast Forestry University Harbin 150040 China +86-451-82192120
| | - Borui Li
- College of Forestry, Northeast Forestry University Harbin 150040 China +86-451-82192120
| | - Ming Li
- College of Forestry, Northeast Forestry University Harbin 150040 China +86-451-82192120
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Song Y, Long A, Ge X, Bao Z, Meng M, Hu S, Gu Y. Construction of floatable flower-like plasmonic Bi/BiOCl-loaded hollow kapok fiber photocatalyst for efficient degradation of RhB and antibiotics. CHEMOSPHERE 2023; 343:140240. [PMID: 37739132 DOI: 10.1016/j.chemosphere.2023.140240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 09/24/2023]
Abstract
The development of low-cost and high-efficiency photocatalysts for the degradation of organic pollutants has been an essential and feasible approach to environmental remediation. However, conventional powder photocatalysts suffer from agglomeration, limited light utilization, and reuse difficulties, which hinder their large-scale practical application. Herein, a floatable flower-like plasmonic Bi/BiOCl-loaded hollow kapok fiber (KF/Bi/BC) photocatalyst was synthesized by a facile solvothermal method. It exhibited excellent photocatalytic degradation of Rhodamine B (RhB), ofloxacin (OFX), and tetracycline (TC) under UV-vis irradiation. The incorporation of metallic Bi not only greatly enhanced the light absorption of BiOCl in the visible region but also served as an effective "electron trap", facilitating the efficient separation and transfer of photogenerated electrons and holes. Furthermore, the remarkable floatability of the catalyst contributed to increased light utilization and facilitated the recycling of the catalyst. This work provided a convenient, effective, and feasible method for the fabrication of floatable photocatalysts with excellent catalytic properties, and has great potential for practical applications.
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Affiliation(s)
- Yankai Song
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Anchun Long
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Xianlong Ge
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Zongqi Bao
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Minfeng Meng
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Shaohua Hu
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Yingying Gu
- School of Materials and Chemistry. University of Shanghai for Science and Technology, Address: No. 516, Jungong Road, Shanghai, 200093, PR China.
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Zheng J, Liu G, Jiao Z. Highly Efficient Photo-Fenton Ag/Fe 2O 3/BiOI Z-Scheme Heterojunction for the Promoted Degradation of Tetracycline. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1991. [PMID: 37446507 DOI: 10.3390/nano13131991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/24/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
Novel Ag/Fe2O3/BiOI Z-scheme heterostructures are first fabricated through a facile hydrothermal method. The composition and properties of as-synthesized Ag/Fe2O3/BiOI nanocomposites are characterized by powder X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, UV-Vis diffuse reflectance spectra, etc. The Ag/Fe2O3/BiOI systems exhibit remarkable degradation performance for tetracycline (TC). In particular, the composite (Ag/Fe2O3/BiOI-2) shows the highest efficiency when the contents of Ag and α-Fe2O3 are 2 wt% and 15%, respectively. The effects of operating parameters, including the solution pH, H2O2 concentration, TC concentration, and catalyst concentration, on the degradation efficiency are investigated. The photo-Fenton mechanism is studied, and the results indicated that •O2- is the main active specie for TC degradation. The enhanced performance of Ag/Fe2O3/BiOI heterostructures may be ascribed to the synergic effect between photocatalysis and the Fenton reaction. The formation of Ag/Fe2O3/BiOI heterojunction is beneficial to the transfer and separation of charge carriers. The photo-generated electrons accelerate the Fe2+/Fe3+ cycle and create the reductive reaction of H2O2. This research reveals that the Ag/Fe2O3/BiOI composite possesses great potential in wastewater treatment.
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Affiliation(s)
- Jingjing Zheng
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China
| | - Guoxia Liu
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou 256603, China
| | - Zhengbo Jiao
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
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