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Putro PA, Sakti AW, Ahmad F, Nakai H, Alatas H. Quantum mechanical assessment on the optical properties of capsanthin conformers. J Comput Chem 2023; 44:2319-2331. [PMID: 37548072 DOI: 10.1002/jcc.27199] [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: 03/24/2023] [Revised: 06/25/2023] [Accepted: 07/15/2023] [Indexed: 08/08/2023]
Abstract
As optical properties, the ultraviolet-visible (UV-Vis) absorption spectra of capsanthin-based red natural dye are a decisive parameter for their usage in various applications. Thus, accurately predicting the maximum UV-Vis wavelength (λ max ) values is critical in designing dye-conjugated material. Extensive metadynamics simulations were carried out to generate capsanthin conformers at various levels of the extended tight-binding method. Benchmarking the time-dependent density-functional theory (TD-DFT) methods help understand the results of a particular functional and allows a comparison between results obtained with different functional. The long-range correction (LC) scheme in LC-TD-DFT-D4/ωB97X/def2-SVP has been found to reproduce the experimentalλ max , and exhibited the effect of conformational changes to the calculated wavelengths. On the other hand, an inexpensive yet efficient LC-TD-DFTB method reproduced the experimentalλ max insensitive to conformational changes.
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Affiliation(s)
- Permono Adi Putro
- Theoretical Physics Division, Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia
- Department of Physics, Faculty of Science, Universitas Mandiri, Subang, Indonesia
- Indonesia Computational-Research Consortium on Renewable Energy (ICRC-RE), IPB University, Bogor, Indonesia
| | - Aditya Wibawa Sakti
- Theoretical Physics Division, Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia
- Indonesia Computational-Research Consortium on Renewable Energy (ICRC-RE), IPB University, Bogor, Indonesia
- Global Center for Science and Engineering, Waseda University, Tokyo, Japan
- Department of Chemistry, Faculty of Science and Computer, Universitas Pertamina, Jakarta, Indonesia
| | - Faozan Ahmad
- Theoretical Physics Division, Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia
- Indonesia Computational-Research Consortium on Renewable Energy (ICRC-RE), IPB University, Bogor, Indonesia
| | - Hiromi Nakai
- Department of Chemistry and Biochemistry, Waseda University, Tokyo, Japan
| | - Husin Alatas
- Theoretical Physics Division, Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia
- Indonesia Computational-Research Consortium on Renewable Energy (ICRC-RE), IPB University, Bogor, Indonesia
- Center for Transdisciplinary & Sustainability Sciences (CTSS), IPB University, Bogor, Indonesia
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Lin L, Shi P, Yao L, Xie K, Tao H, Zhang Z, Wang Y. First-principles study on CO oxidation on CuO(111) surface prefers the Eley-Rideal or Langmuir-Hinshelwood pathway. NANOTECHNOLOGY 2022; 33:205504. [PMID: 35081528 DOI: 10.1088/1361-6528/ac4f19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Using the first-principles approach, we investigated the electronic and chemical properties of cupric oxide CuO (110) and CuO (111) and substantiated their catalytic activity toward CO oxidation. It is found that CuO (111) surface is more stable than the CuO (110) surface. We firstly study that adsorption of CO and O2on perfect, oxygen vacancies and Cu-anchored CuO (111) surface. It is found that adsorption of CO and O2molecules are chemical. Then we selected the most stable adsorption structure of CO/O2to investigated the CO oxidation mechanism on different surface, here we choose to study the Langmuir-Hinshelwood (LH) mechanism and Eley-Rideal (ER) mechanism. The results show that perfect and OvacancyCuO (111) surface is more inclined to LH mechanism, while the Cu-anchored CuO (111) surface is more inclined to ER mechanism. The results show that CuO catalyst is very effective for CO oxidation. Our work provides a deep understanding for the search of economical and reasonable CO oxidation catalysts.
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Affiliation(s)
- Long Lin
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
- School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China
| | - Pei Shi
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Linwei Yao
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Kun Xie
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Hualong Tao
- Liaoning Key Materials Laboratory for Railway, School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning Province, People's Republic of China
| | - Zhanying Zhang
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, People's Republic of China
| | - Yanfang Wang
- School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China
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Liu F, Yang S, Medford AJ. Scalable approach to high coverages on oxides via iterative training of a machine‐learning algorithm. ChemCatChem 2020. [DOI: 10.1002/cctc.201902345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fuzhu Liu
- School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta Georgia 30332 United States
- School of Science Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 People's Republic of China
| | - Shengchun Yang
- School of Science Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 People's Republic of China
| | - Andrew J. Medford
- School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta Georgia 30332 United States
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