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- Title
Preparation of BCN by precursor method and its photocatalytic reduction of CO<sub>2</sub>.
- Authors
BU Xuelin; ZENG Xianghui; CHEN Hui; FANG Wei; DU Xing; WANG Daheng; HE Xuan; LI Weixin; ZHAO Lei
- Abstract
In this paper, ethylenediamine, diethylenetriamine and triethylene tetramine were used as N source and boric acid as B source to prepare different precursors to directly high temperature ammonolysis polymerize borocarbonitrides (BCN-x, recorded as BCN-EDA, BCN-DETA and BCN-TETA, respectively). XRD, SEM, TEM, XPS, UV-Vis, and PL were used to analyze the chemical composition, morphology, and optical properties of samples. And the photocatalytic CO2 reduction performance of BCN-x samples was assessed without compromising agents and cocatalysts. The results show that all the prepared samples have lamellar structure, and BCN-EDA represents higher crystallinity and higher photocarrier separation efficiency. Under visible light irradiation at 350-780 nm, the produced BCN-x can reduce CO2 to CO and CH4, and BCN-EDA has the best photocatalytic CO2 reduction performance, with a CO yield of 32.20 µmoL/g and the photocatalytic stability can be maintained within 20 h.
- Publication
Journal of Functional Materials / Gongneng Cailiao, 2024, Vol 55, Issue 7, p07031
- ISSN
1001-9731
- Publication type
Article
- DOI
10.3969/j.issn.1001-9731.2024.07.005