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Ederer J, Novák A, Janoš P, Šťastný M, Henych J, Bárta M, Ryšánek P, Tolasz J. Influence of surface chemical properties of nanocrystalline CeO2 on phosphate adsorption and methyl-paraoxon decomposition. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Catalytic Combustion of Propane over Ce-Doped Lanthanum Borate Loaded with Various 3d Transition Metals. Catalysts 2022. [DOI: 10.3390/catal12121632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ce-doped LaBO3 (Ce0.05La0.95BO3) and a corresponding incorporation with 3d transition metals (TMs) were prepared and evaluated for eliminating propane. Our results showed the catalytic activity toward propane combustion has a close relationship with the loaded TMs, which promoted oxygen vacancies density and further enhanced the reduction and acidity of this material. This eventually led to 90% propane conversion at 718 K for a Cu-loaded Ce0.05La0.95BO3 catalyst. During 10 h of catalytic propane oxidation, the propane-elimination rate was maintained very well, with no degradation of the catalyst.
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Green microwave synthesis of ZnO and CeO 2 nanorods for infectious diseases control and biomedical applications. AMB Express 2022; 12:153. [PMID: 36504111 PMCID: PMC9742012 DOI: 10.1186/s13568-022-01495-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/20/2022] [Indexed: 12/14/2022] Open
Abstract
Control of Infectious diseases such as; bacteria and viruses, has become a globally critical issue, since the appearance of COVID-19 virus in 2020. In addition to the microbial resistance of the currently available therapeutic drugs as well as, its prolonged side effects make its use is of health care concern. Green nanotechnology approach is a promising solution for controlling such infectious diseases and many biomedical purposes. In the present study, green synthesis approach based on microwave-assisted hydrothermal method is an innovative and environmentally friendly method for preparation of bioactive CeO2 and ZnO nanorod structured materials using Olea europaea (O. e.) leaf plant extract as a natural medicinal capping agent for controlling the shape and size of nano-products. The optical and structural analyses of the obtained nanorod-structures are characterized using; TEM, FTIR, XRD, SBET analyses and particle size analyzer. The green-synthesized ZnO and CeO2 nanorods display an average crystallite size of approximately 15 and 5 nm, respectively. The antimicrobial activity of ZnO and CeO2 nanorods compared with the traditional hydrothermal methods, was examined on six clinical pathogens including; (E. coli Serratia sp., S. aureus, Bacillus subtilis, Streptococcus mutant, and MRSA). The results indicated superior antimicrobial and anti-tumor activities towards hepatocellular carcinoma cell lines (IC50 = 117.24 and 103.50 μg mL-1 for ZnO and CeO2 and LD50 > 3000 mg kg-1). This demonstrates that the green microwave process is a promising approach for the synthesis of effective ZnO and CeO2 nanomaterials applied for many biomedical applications.
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Zhang K, Ding H, Pan W, Mu X, Qiu K, Ma J, Zhao Y, Song J, Zhang Z. Research Progress of a Composite Metal Oxide Catalyst for VOC Degradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9220-9236. [PMID: 35580211 DOI: 10.1021/acs.est.2c02772] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Volatile organic compounds (VOCs) are atmospheric pollutants that have been of concern for researchers in recent years because they are toxic, difficult to remove, and widely sourced and easily cause damage to the environment and human body. Most scholars use low-temperature plasma biological treatment, catalytic oxidation, adsorption, condensation, and recovery techniques to treat then effectively. Among them, catalytic oxidation technology has the advantages of a high catalytic efficiency, low energy consumption, high safety factor, high treatment efficiency, and less secondary pollution; it is currently widely used for VOC degradation technology. In this paper, the catalytic oxidation technology for the degradation of multiple types of VOCs as well as the development of a single metal oxide catalyst have been briefly introduced. We also focus on the research progress of composite metal oxide catalysts for the removal of VOCs by comparing and analyzing the metal component ratio, preparation method, and types of precursors and the catalysts' influence on the catalytic performance. In addition, the reason for catalyst deactivation and a correlation between the chemical state of the catalyst and the electron distribution are discussed. Development of a composite metal oxide catalyst for the catalytic oxidation of VOCs has been proposed.
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Affiliation(s)
- Kai Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Honglei Ding
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Shanghai Power Environmental Protection Engineering Technology Research Center, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Key Laboratory of Environmental Protection Technology for Clean Power Generation, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Weiguo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Shanghai Power Environmental Protection Engineering Technology Research Center, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Key Laboratory of Environmental Protection Technology for Clean Power Generation, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Xiaotian Mu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Kaina Qiu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Junchi Ma
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Yuetong Zhao
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Jie Song
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Ziyi Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
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Tunç N, Rakap M. Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane. ChemistrySelect 2022. [DOI: 10.1002/slct.202200399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nihat Tunç
- Department of Chemistry Van Yuzuncu Yil University 65080 Van Turkey
| | - Murat Rakap
- Maritime Faculty Van Yuzuncu Yil University 65080 Van Turkey
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