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Hu Q, Li Y, Cao H, Ji L, Wu J, Zhong M. Light-driven thermocatalytic CO 2 reduction by CH 4 on alumina-cluster-modified Ni nanoparticles with excellent durability and high light-to-fuel efficiency promoted by the photoactivation effect. J Colloid Interface Sci 2024; 657:942-952. [PMID: 38096777 DOI: 10.1016/j.jcis.2023.12.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/01/2023] [Accepted: 12/06/2023] [Indexed: 01/02/2024]
Abstract
Using inexhaustible solar energy to drive efficient light-driven thermocatalytic CO2 reduction by CH4 (DRM) is an attractive approach that can synchronously reduce the greenhouse effect and convert solar energy into fuels. However, it is often limited by the intense light intensity required to produce high fuel production rates, and the catalyst deactivation due to severe carbon deposition generated from side reactions. Herein, a nanostructure of alumina-cluster-modified Ni nanoparticles supported on Al2O3 nanorods (ACM-Ni/Al2O3) was synthesized, displaying good catalytic performance under focused UV-vis-IR illumination. By light-driven thermocatalytic DRM on ACM-Ni/Al2O3 at a reduced light intensity of 76.9 kW m-2, the high fuel production rates of H2 (rH2, 65.7 mmol g-1 min-1) and CO (rCO, 78.8 mmol g-1 min-1), as well as an efficient light-to-fuel efficiency (η, 26.3 %) are achieved without additional heating. The rH2 and rCO of light-driven thermocatalysis are 2.9 and 1.9 times higher, respectively, compared to conventional thermocatalysis at the same temperature. We have discovered that high light-driven thermocatalytic activity originates from the photoactivation effect, significantly reducing the apparent activation energy and facilitating C* oxidation as a decisive step in DRM. ACM-Ni/Al2O3 possesses excellent durability and exhibits an extremely low coking rate of 4.40 × 10-3 gc gcatalyst-1 h-1, which is 26.8 times lower than that of the reference sample without Al2O3 cluster modification (R-Ni/Al2O3). This is owing to a decrease in activation energies (Ea) of C* oxidation and an increase in Ea of C* polymerization by the surface modification of Ni nanoparticles with Al2O3 clusters, effectively inhibiting carbon deposition.
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Affiliation(s)
- Qianqian Hu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Yuanzhi Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China.
| | - Huamin Cao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Lei Ji
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Jichun Wu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Mengqi Zhong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
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Xie M, Liu C, Liang M, Rad S, Xu Z, You S, Wang D. A review of the degradation of antibiotic contaminants using advanced oxidation processes: modification and application of layered double hydroxides based materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:18362-18378. [PMID: 38353817 DOI: 10.1007/s11356-024-32059-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 01/15/2024] [Indexed: 03/09/2024]
Abstract
In recent years, the treatment of organic pollutants has become a global concern due to the threat to human health posed by emerging contaminants, especially antibiotic contamination. Advanced oxidation processes (AOPs) can solve the organic pollution problem well, which have been identified as a promising solution for the treatment of hard-to-handle organic compounds including antibiotic contaminants. Layered double hydroxides (LDHs) are excellent catalysts because of their flexible tunability, favorable thermal stability, abundant active sites, and facile exchangeability of intercalated anions. This paper conducted a systematic review of LDHs-based materials used for common antibiotic removal by three significant AOP technologies, such as photocatalysis, the Fenton-like processes, and peroxymonosulfate catalysis. The degradation effects studied in various studies were reviewed, and the mechanisms were discussed in detail based on the type of AOPs. Finally, the challenges and the application trends of AOPs that may arise were prospected. The aim of this study is to suggest ways to provide practical guidance for the screening and improvement of LDH materials and the rational selection of AOPs to achieve efficient antibiotic degradation. This could lead to the development of more efficient and environmentally friendly materials and processes for degrading antibiotics, with significant implications for our ecological conservation by addressing water pollution.
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Affiliation(s)
- Mingqi Xie
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
| | - Chongmin Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China.
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China.
| | - Meina Liang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
| | - Saeed Rad
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
| | - Zejing Xu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
| | - Shaohong You
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
| | - Dunqiu Wang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin, 541004, China
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Li T, Tao R, Wang Y, Yan T, Fan X, Liu K. Construction of bismuth oxide iodide (BiOI)/zinc titanium oxide (Zn 2TiO 4) p-n heterojunction nanofibers with abundant oxygen vacancies for improving photocatalytic carbon dioxide reduction. J Colloid Interface Sci 2024; 655:841-851. [PMID: 37979290 DOI: 10.1016/j.jcis.2023.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/20/2023]
Abstract
The conversion of carbon dioxide (CO2) into value-added syngas represents an effective approach for addressing both environmental issues and carbon neutrality issue. However, the slow charge dynamics and low CO2 affinity severely limit the photocatalytic CO2 reduction reaction. In this study, bismuth oxide iodide (BiOI)/zinc titanium oxide (Zn2TiO4) composite nanofibers were successfully prepared by immobilizing BiOI nanosheets on Zn2TiO4 electrospun nanofibers through a solvothermal reaction method. The results of photocatalytic research indicate that the BiOI/Zn2TiO4 composite nanofibers exhibit improved photocatalytic activity in CO2 reduction compared to pristine BiOI nanosheets and Zn2TiO4 nanofibers. The highest carbon monoxide (CO) release rate of BiOI/Zn2TiO4 nanofibers could reach 9.10 µmol‧g-1‧h-1, which is 18.6 times and 6.6 times higher than that of pristine BiOI nanosheets and Zn2TiO4 nanofibers, respectively. The enhanced photocatalytic activity can be credited to the formed BiOI/Zn2TiO4 p-n heterojunction, which can boost electron separation, reduce charge recombination at the interface, and promote the reaction process. The presence of oxygen vacancies in BiOI/Zn2TiO4 nanofibers can not only provide active site to facilitate the adsorption and activation of CO2 molecules, but also adjust the energy band structure of the catalyst to accelerate carriers transfer. After four cycles of testing, the CO release rate of BiOI/Zn2TiO4 nanofibers remains nearly constant, demonstrating its excellent stability. This work develops a feasible strategy to improve the efficiency of photoreduction of CO2 through energy band engineering and surface defect technology.
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Affiliation(s)
- Tongtong Li
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Ran Tao
- School of Physics, Liaoning University, Shenyang 110036, PR China; Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials, Liaoning University, Shenyang 110036, PR China.
| | - Yanxin Wang
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Ting Yan
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Xiaoxing Fan
- School of Physics, Liaoning University, Shenyang 110036, PR China; Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials, Liaoning University, Shenyang 110036, PR China
| | - Kuiyong Liu
- School of Physics, Liaoning University, Shenyang 110036, PR China; Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials, Liaoning University, Shenyang 110036, PR China.
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Zhang ZR, Guo RT, Xia C, Li CF, Pan WG. Bi 3O 4Cl/g-C 3N 4/Cd 0.5Zn 0.5S Double Z-Scheme Heterojunction Photocatalyst for Highly Selective CO 2 Reduction to Methane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:614-623. [PMID: 38150370 DOI: 10.1021/acs.langmuir.3c02815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Solar-energy-driven CO2 hydrogenation is a promising strategy to alleviate the climate crisis. Methane is a desirable derivative of CO2 reduction. However, developing a photocatalyst for highly active and selective CH4 generation remains challenging. Herein, we report a double Z-scheme Bi3O4Cl/g-C3N4/Cd0.5Zn0.5S photocatalyst for efficient reduction of CO2 to CH4. In situ characterization techniques confirmed that the charge migration mechanism in Bi3O4Cl/g-C3N4/Cd0.5Zn0.5S promotes charge separation through double internal electric fields. As a result, the optimized C0.01B0.02C catalyst displayed a formation rate high up to 25.34 μmol g-1 h-1 and a selectivity of 96.52% of CH4. Moreover, the AQY of CO2 conversion on C0.01B0.02C (1.84%) was almost 41 times higher than that of the bare CN. This study provides a novel perspective to develop heterojunction photocatalysts for selective CO2 conversion to CH4.
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Affiliation(s)
- Zhen-Rui Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
| | - Cheng Xia
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China
| | - Chu-Fan Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
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