Structural, mechanical, electronic and optical properties of N-decorated single-walled silicon carbide nanotube photocatalyst for hydrogen evolution via water splitting: a DFT study

This work investigates the fundamental photocatalytic properties of nitrogen-doped single-walled silicon carbide nanotubes (N-doped SWSiCNTs) for hydrogen evolution for the first time. Investigations of the structural, mechanical, electronic, and optical properties of the studied systems were carrie...

全面介绍

Saved in:
书目详细资料
Main Authors: Itas, Yahaya Saadu, Razali, Razif, Tata, Salisu, Mohammed Kolo, Mohammed Kolo, Osman, Hamid, Idris, Abubakr M., Khandaker, Mayeen Uddin
格式: Article
语言:English
出版: Taylor & Francis Group 2023
主题:
在线阅读:http://eprints.utm.my/106783/1/RazifRazali2023_StructuralMechanicalElectronicandOptical.pdf
http://eprints.utm.my/106783/
http://dx.doi.org/10.1080/14686996.2023.2271912
标签: 添加标签
没有标签, 成为第一个标记此记录!
实物特征
总结:This work investigates the fundamental photocatalytic properties of nitrogen-doped single-walled silicon carbide nanotubes (N-doped SWSiCNTs) for hydrogen evolution for the first time. Investigations of the structural, mechanical, electronic, and optical properties of the studied systems were carried out using popular density functional theory implemented in quantum ESPRESSO and Yambo codes. Analysis of the structural properties revealed high mechanical stability with the 3.6% and 7.4% N-doped SWSiCNT. The calculated band gap of the N-doped SWSiCNT with 3.6% demonstrated a value of 2.56 eV which is within the photocatalytic range of 2.3 eV−2.8 eV. The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) potentials of the 3.6% N-doped SWSiCNT also showed good agreement with previous theoretical data. The studied material showed the best photocatalytic performance in both parallel and perpendicular directions by absorbing photons in the visible region. Therefore, the observed structural, mechanical, electronic and optical behaviors demonstrated by the 3.6% N-doped SWSiCNT exposed it as a better photocatalyst for hydrogen production under visible light.