气候变化领域集成服务门户(CCPortal): Dyadic promotion of photocatalytic aerobic oxidation: Via the Mott-Schottky effect enabled by nitrogen-doped carbon from imidazolium-based ionic polymers

CCPortal

DOI	10.1039/c8ee02727g
	Dyadic promotion of photocatalytic aerobic oxidation: Via the Mott-Schottky effect enabled by nitrogen-doped carbon from imidazolium-based ionic polymers
	Zhong H.; Yang C.; Fan L.; Fu Z.; Yang X.; Wang X.; Wang R.
发表日期	2019
ISSN	17545692
起始页码	418
结束页码	426
卷号	12 期号:1
英文摘要	Metal/semiconductor systems are one type of promising heterogeneous photocatalyst for solar conversion. The injection of hot electrons from photoactivated metals to semiconductors is the rate-determining step owing to the Schottky barrier created at the interface. It is highly desirable to develop new approaches for promoting hot electron transfer. Herein, we present one type of new Mott-Schottky-type photocatalytic material consisting of TiO 2 nanosheets and Ru nanoparticles (NPs) coated with nitrogen-doped carbon (TiO 2 @NC-Ru-T). They are readily available through the conformal coating of TiO 2 with a main-chain imidazolium-based ionic polymer (ImIP), followed by anion exchange with perruthenate and subsequent pyrolysis; the sintering of Ru NPs is effectively inhibited by ImIP, generating small-sized and well-dispersed Ru NPs. The nitrogen-doped carbon in TiO 2 @NC-Ru-T both strengthens the performance of Ru NPs and facilitates photoelectron transfer from photoactivated Ru NPs to TiO 2 through a Mott-Schottky contact. The dyadic effects greatly promote selective aerobic oxidation of alcohols with air as an oxidant under visible light irradiation. This work provides a feasible protocol for improving visible light absorption and charge/electron transfer in photocatalytic reactions, and holds great promise for developing a new type of solar-to-chemical energy conversion reaction. © 2019 The Royal Society of Chemistry.
英文关键词	Carbon; Doping (additives); Energy conversion; Hot electrons; Ion exchange; Light; Light absorption; Nitrogen; Plastic coatings; Polymers; Schottky barrier diodes; Sintering; Titanium dioxide; Heterogeneous photocatalysts; Hot electron transfer; Nitrogen-doped carbons; Photocatalytic materials; Photocatalytic reactions; Rate determining step; Visible light absorption; Visible-light irradiation; Ruthenium; absorption; carbon; catalysis; catalyst; coating; imidazolinone pesticide; inhibition; ion exchange; nitrogen; oxidant; oxidation; polymer; pyrolysis; visible spectrum
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190022
作者单位	State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China; State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
推荐引用方式 GB/T 7714	Zhong H.,Yang C.,Fan L.,et al. Dyadic promotion of photocatalytic aerobic oxidation: Via the Mott-Schottky effect enabled by nitrogen-doped carbon from imidazolium-based ionic polymers[J],2019,12(1).
APA	Zhong H..,Yang C..,Fan L..,Fu Z..,Yang X..,...&Wang R..(2019).Dyadic promotion of photocatalytic aerobic oxidation: Via the Mott-Schottky effect enabled by nitrogen-doped carbon from imidazolium-based ionic polymers.Energy & Environmental Science,12(1).
MLA	Zhong H.,et al."Dyadic promotion of photocatalytic aerobic oxidation: Via the Mott-Schottky effect enabled by nitrogen-doped carbon from imidazolium-based ionic polymers".Energy & Environmental Science 12.1(2019).