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Wu Z, Xie Z, Zhu Y, Wang B, Nie Y, Qiu J, Le Z. Solvent-regulated self-assembled carbon nitride for photocatalytic reduction of U(VI) in water. Photochem Photobiol Sci 2024; 23:651-664. [PMID: 38430372 DOI: 10.1007/s43630-024-00541-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/18/2024] [Indexed: 03/03/2024]
Abstract
Manufacturing high-performance and reusable materials from radioactive uranium-containing wastewater remains a significant challenge. Herein, a supramolecular self-assembly strategy was proposed, using melamine and cyanuric acid as precursors and using intermolecular hydrogen bond force to form carbon nitride (CN-D) in different solvents through a single thermal polymerization strategy. Supramolecular self-assembly method is a promising strategy to synthesize a novel carbon nitride with molecular regulatory properties. In addition, 98% of U(VI) in wastewater can be removed by using CN-D for 60 min under visible light. After five cycles of recycling, more than 95% of U(VI) can still be reduced, indicating that it has good recyclability and reusability. This study not only provides an efficient photocatalytic method of uranium reduction, but also provides a new method for self-assembly synthesis.
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Affiliation(s)
- Zhiwen Wu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Ye'an Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China
| | - Bo Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China
| | - Yidan Nie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China
| | - Jialin Qiu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China
| | - Zhanggao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China.
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Huang CW, Zhou SR, Hsiao WC. Multifunctional TiO2/MIL-100(Fe) to conduct adsorption, photocatalytic, and heterogeneous photo-Fenton reactions for removing organic dyes. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Liu Z, Xiang H, Zhang A, Wu L, Fu Y, Zhou Q. Enhancing Photocatalytic Antibiotics Mineralization and Water Oxidation via Constructing Interfacial Electric Field in Plate-on-Plate BiOCl/WO3 Photocatalysts. J Colloid Interface Sci 2023; 642:264-272. [PMID: 37004260 DOI: 10.1016/j.jcis.2023.03.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023]
Abstract
Two-dimensional materials and related plate-on-plate interfacial heterostructures offer great flexibility for integrating different atomic layers, providing an attractive scheme for the construction of built-in electric fields in photocatalysts. Here, we developed an interfacial engineering strategy to construct well-interfaced plate-on-plate BiOCl/WO3 heterojunctions for general enhanced photocatalytic oxidation reactions. BiOCl/WO3 heterojunctions exhibited significant enhancements in oxygen evolution and antibiotic degradation, with a rate of 9.5 times and 14.7 times higher than that of WO3. This enhancement is attributed to the well lattice matching contact surface of WO3 {020} plane with BiOCl {001} plane, which integrates a strong built-in electric field induced by Bi-O chemically bonds, providing atomically fast transport channels for electrons. These findings offer new guidelines for designing interfacial structures for high-performance oxidative photocatalysts and provide insights into the underlying interfacial carrier transport mechanisms.
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Haruna A, Chong FK, Ho YC, Merican ZMA. Preparation and modification methods of defective titanium dioxide-based nanoparticles for photocatalytic wastewater treatment-a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:70706-70745. [PMID: 36044146 DOI: 10.1007/s11356-022-22749-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
The rapid population growth and industrial expansion worldwide have created serious water contamination concerns. To curb the pollution issue, it has become imperative to use a versatile material for the treatment. Titanium dioxide (TiO2) has been recognized as the most-studied nanoparticle in various fields of science and engineering due to its availability, low cost, efficiency, and other fascinating properties with a wide range of applications in modern technology. Recent studies revealed the photocatalytic activity of the material for the treatment of industrial effluents to promote environmental sustainability. With the wide band gap energy of 3.2 eV, TiO2 can be activated under UV light; thus, many strategies have been proposed to extend its photoabsorption to the visible light region. In what follows, this has generated increasing attention to study its characteristics and structural modifications in different forms for photocatalytic applications. The present review provides an insight into the understanding of the synthesis methods of TiO2, the current progress in the treatment techniques for the degradation of wide environmental pollutants employing modified TiO2 nanoparticles, and the factors affecting its photocatalytic activities. Further, recent developments in using titania for practical applications, the approach for designing novel nanomaterials, and the prospects and opportunities in this exciting area have been discussed.
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Affiliation(s)
- Abdurrashid Haruna
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.
- Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria.
- Centre of Innovative Nanostructures & Nanodevices (COINN), Institute of Autonomous System, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia.
| | - Fai-Kait Chong
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Centre of Innovative Nanostructures & Nanodevices (COINN), Institute of Autonomous System, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia
| | - Yeek-Chia Ho
- Civil and Environmental Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Centre for Urban Resource Sustainability, Institute for Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Zulkifli Merican Aljunid Merican
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Institute of Contaminant Management for Oil & Gas, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
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Xiong J, Zeng HY, Peng JF, Xu S, Peng DY, Yang ZL. Construction of Ultrafine Ag 2S NPs Anchored onto 3D Network Rodlike Bi 2SiO 5 and Insight into the Photocatalytic Mechanism. Inorg Chem 2022; 61:11387-11398. [PMID: 35834802 DOI: 10.1021/acs.inorgchem.2c01665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel three-dimensional (3D) network rodlike Ag2S/Bi2SiO5 photocatalyst with a p-n heterostructure composed of ultrafine Ag2S nanoparticles (NPs) and Bi2SiO5 nanosheets was prepared using an anionic self-regulation strategy by a two-step hydrothermal process. The architecture facilitated the efficient transfer and separation of photogenerated electron-hole pairs. The optimal Ag2S/Bi2SiO5 composite (ABSO0.10) exhibited an excellent reduction activity (93.5% Cr(VI) removal in wastewater containing 50 mg·L-1 Cr(VI) within 90 min under visible light), which was about 11.2 and 25.6 times higher than that of the pristine Ag2S and virgin Bi2SiO5, respectively. Assisted by experiments and density functional theory (DFT) calculations, a possible photocatalytic mechanism for Cr(VI) reduction over the Ag2S/Bi2SiO5 composite under visible-light irradiation was proposed.
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Affiliation(s)
- Jie Xiong
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Hong-Yan Zeng
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Jin-Feng Peng
- School of Mechanical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Sheng Xu
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Di-Yang Peng
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Zhuo-Lin Yang
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
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