气候变化领域集成服务门户(CCPortal): Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light

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DOI	10.1016/j.scib.2019.10.015
	Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light
	Wang D.; Zeng H.; Xiong X.; Wu M.-F.; Xia M.; Xie M.; Zou J.-P.; Luo S.-L.
发表日期	2020
ISSN	20959273
起始页码	113
结束页码	122
卷号	65 期号:2
英文摘要	A facile and effective impregnation combined with photo-deposition approach was adopted to deposit cadmium sulfide (CdS) nanoparticles on CTF-1, a covalent triazine-based frameworks (CTFs). In this system, CTF-1 not only acted as supporter but also served as photocatalyst and electron donor. The performance of the obtained CdS deposited CTF-1 (CdS-CTF-1) nanocomposite was evaluated by H2 evolution reaction under visible light irradiation. As a result, CdS-CTF-1 exhibited high H2 production from water, far surpassing the CdS/CTF-1 nanocomposite, in which CdS was deposited via solvothermal method. The high activity of CdS-CTF-1 was attributed to the confined CdS nanoparticles with small size, leading to expose more active sites. In addition, time-resolved spectroscopy indicated that the superior performance of CdS-CTF-1 also can be ascribed to the fast electron transfer rate and injection efficiency (KET = 0.18 × 109 s−1, ηinj = 39.38%) between CdS and CTF-1 layers, which are 3.83 times faster and 4.84 times higher than that of CdS/CTF-1 nanocomposite. This work represents the first example on using covalent organic frameworks (COFs) as a support and electron-donor for fabricating novel CdS-COF nanocomposite system and its potential application in solar energy transformations. © 2019 Science China Press
关键词	CdS nanoparticles Charge transfer dynamics Covalent organic frameworks Hydrogen generation Photo-deposition
英文关键词	Cadmium sulfide; Charge transfer; Deposition; Hydrogen production; II-VI semiconductors; Laser spectroscopy; Light; Nanocomposites; Photocatalytic activity; Solar energy; Sulfur compounds; Charge-transfer dynamics; Covalent organic frameworks; Covalent triazine-based frameworks; Hydrogen generations; Photo-deposition; Photocatalytic hydrogen evolution; Solar energy transformations; Time-resolved spectroscopy; CdS nanoparticles
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207199
作者单位	Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, China
推荐引用方式 GB/T 7714	Wang D.,Zeng H.,Xiong X.,et al. Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light[J],2020,65(2).
APA	Wang D..,Zeng H..,Xiong X..,Wu M.-F..,Xia M..,...&Luo S.-L..(2020).Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light.Science Bulletin,65(2).
MLA	Wang D.,et al."Highly efficient charge transfer in CdS-covalent organic framework nanocomposites for stable photocatalytic hydrogen evolution under visible light".Science Bulletin 65.2(2020).