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Wei F, Huang Y, Zhang G, Dai J, Li R, Zhang H, Ge M, Zhang W. Rational Construction of MOF-Derived Porous ZnTiO 3/TiO 2 Heterostructured Photocatalysts with Remarkable Photocatalytic Performance. ACS OMEGA 2023; 8:41765-41772. [PMID: 37970027 PMCID: PMC10634009 DOI: 10.1021/acsomega.3c06307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/17/2023]
Abstract
TiO2 has been widely used in photodegradation of pollutants, but it suffers from inferior photocatalytic performance under solar light illumination. Thus, novel porous ZnTiO3/TiO2 heterostructured photocatalysts are constructed by hydrothermal and carbonization techniques using ZIF-8 as a sacrificial template. After coating with TiO2, ZIF-8 nanocubes are selectively etched and subsequently coprecipitated with Ti ions during the hydrothermal process. Thereafter, the pores generated from carbonized ZIF-8 provide a large specific surface area and abundant active reaction sites for photocatalysis after annealing, producing stable ZnTiO3/TiO2 nanocomposites. Thus, porous ZnTiO3/TiO2 heterostructured photocatalysts exhibit excellent photocatalytic performance under solar light irradiation due to the boosted electron-hole separation/transfer. The kinetic constant of ZnTiO3/TiO2 nanocomposites (4.66 × 10-1 min-1) is almost 100 and 3.7 times higher than that of self-degradation (4.69 × 10-3 min-1) and TiO2 (1.27 × 10-1 min-1), respectively. This facile strategy provides a deep insight into synthesizing heterostructured photocatalysts with high efficiency in the field of environmental remediation.
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Affiliation(s)
- Fayun Wei
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
- College
of Textile Science and Engineering, Zhejiang
Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yiwen Huang
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Guangyu Zhang
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Jiamu Dai
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Ruiqing Li
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Haifeng Zhang
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Mingzheng Ge
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
- Key
Laboratory of Jiangsu Province for Silk Engineering, Soochow University, Suzhou 215123, P. R. China
- Institute
of Applied Physics and Materials Engineering, University of Macau, Macau 999078, P. R. China
| | - Wei Zhang
- School
of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
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Abd El-Baki RF, Abdullah AQ, Hakamy A, Abd-Elnaiem AM. Nanoarchitectonics of Nickel Dimethylglyoxime/γ-alumina Composites: Structural, Optical, Thermal, Magnetic and Photocatalytic Properties. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02758-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 06/07/2023] [Indexed: 09/01/2023]
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Li X, Sun N, Bai Y, Yan Y, Ouyang T, Wang X, Jiang X, Wang Z, Cai X, Cai J, Tan H. High Photocatalytic Hydrogen Production of Ag@TiO 2 with Different Sizes by Simple Chemical Synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3350-3357. [PMID: 36802638 DOI: 10.1021/acs.langmuir.2c03243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The photocatalytic enhancement of sliver-based metals compounded with semiconductor materials has been demonstrated. However, there are relatively few studies on the effect of particle size in the system on photocatalytic performance. In this paper, silver nanoparticles of two different sizes, 25 and 50 nm, were prepared by a wet chemical method and subsequently sintered to obtain a photocatalyst with a core-shell structure. The photocatalyst Ag@TiO2-50/150 prepared in this study has a hydrogen evolution rate as high as 4538.90 μmol·g-1·h-1. It is interesting to find that when the ratio of silver core size to composite size is 1:3, the hydrogen yield is almost not affected by the silver core diameter, and the hydrogen production rate is basically the same. In addition, the rate of hydrogen precipitation in air for 9 months was still more than 9 times those of previous studies. This provides a new idea for the study of the oxidation resistance and stability of photocatalysts.
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Affiliation(s)
- Xinru Li
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Nan Sun
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Yaoning Bai
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Yuwei Yan
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Taoyuan Ouyang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Xu Wang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Xiaodi Jiang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Zichen Wang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Xiaoming Cai
- Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Jinming Cai
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
| | - Honglin Tan
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650000, P.R. China
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