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Khorrampour R, Raissi H, Shaki H, Morsali A, Hashemzadeh H. The scrutinised DFT and MD studies on the adsorption of D-penicillamine drug on γ-Fe 2O 3 nanoparticle as a highly efficient carrier. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1716979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Heidar Raissi
- Chemistry Department, University of Birjand, Birjand, Iran
| | - Hosien Shaki
- Chemistry Department, Payame Noor University, Mashhad, Iran
| | - Ali Morsali
- Chemistry Department, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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Salimi Beni A, Zarandi M, Hosseinzadeh B, Najafi Chermahini A. Density functional theory study of carbazole dyes: Potential application of carbazole dyes in dye-sensitized solar cells. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.094] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Li X, Li T, Zhang T, Gu C, Zheng S, Zhang H, Chen W. Nano-TiO 2-Catalyzed Dehydrochlorination of 1,1,2,2-Tetrachloroethane: Roles of Crystalline Phase and Exposed Facets. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:4031-4039. [PMID: 29553250 DOI: 10.1021/acs.est.7b05479] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoscale titanium dioxide ( nTiO2) is one of the most widely used metal oxide nanomaterials. Once released into the environment, nTiO2 may catalyze abiotic transformation of contaminants and consequently affect their fate and effects. Here, we show that the overall catalytic efficiency of nTiO2 for the dehydrochlorination reaction of 1,1,2,2-tetrachloroethane, a commonly used solvent, depends on the crystalline phase and exposed facets of nTiO2, which significantly affect the adsorption capacity and surface catalytic activity of nTiO2. Specifically, under all three pH conditions tested (7.0, 7.5 and 8.0), the overall catalytic efficiency of eight nTiO2 materials (as indicated by the surface-area-normalized reaction kinetic constants) followed the order of rutile > anatase > TiO2(B). For anatase and TiO2(B) materials, the overall catalytic efficiency increased with the increasing percentage of exposed {001} and {010} facets, respectively. Crystalline phase and exposed facets significantly affected adsorption affinities of nTiO2, likely by modulating surface hydrophobicity of nTiO2. Crystalline phase and exposed facets also determined the activity of surface catalytic sites on nTiO2 by dictating the concentration and strength of surface unsaturated Ti atoms, as the deprotonated hydroxyl groups chemisorbed to these reactive Ti atoms served as bases to catalyze the base-promoted reaction.
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Affiliation(s)
- Xuguang Li
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , Tianjin 300350 , China
| | - Tong Li
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , Tianjin 300350 , China
| | - Tong Zhang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , Tianjin 300350 , China
| | - Cheng Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Haijun Zhang
- School of Physics and Materials Science , Anhui University , Hefei , Anhui 230039 , China
| | - Wei Chen
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , Tianjin 300350 , China
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