气候变化领域集成服务门户(CCPortal): Bidentate carboxylate linked TiO2 with NH2-MIL-101(Fe) photocatalyst: a conjugation effect platform for high photocatalytic activity under visible light irradiation

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DOI	10.1016/j.scib.2020.02.001
	Bidentate carboxylate linked TiO2 with NH2-MIL-101(Fe) photocatalyst: a conjugation effect platform for high photocatalytic activity under visible light irradiation
	Ma Y.; Lu Y.; Hai G.; Dong W.; Li R.; Liu J.; Wang G.
发表日期	2020
ISSN	20959273
起始页码	658
结束页码	669
卷号	65 期号:8
英文摘要	Interfacial conjugation was employed to engineering preparation of TiO2@NH2-MIL-101(Fe) heterojunction photocataysts through carboxylate bidentate linkage with TiO2 and NH2-MIL-101(Fe), which can enhance the electron transfer capability from metal-organic frameworks (MOFs) to TiO2 and photocatalytic activity. The carbon nanospheres derived from glucose act as reducing agent and template to synthesize oxygen vacancies TiO2 hollow nanospheres. Then, the oxygen vacancies were employed as antennas to connect 2-aminoterephtalic acid as bidentate carboxylate chelating linkage on TiO2, which have been proved by the density functional theory (DFT) calculations. Subsequently, NH2-MIL-101(Fe) was coordinatingly formed on the surface of TiO2. The conjugation effects between TiO2 and NH2-MIL-101(Fe) enhanced the electron transfer capability and could also induce the band tail states to narrow bandgap of the composites. Thus, the photodegradability of methylene blue was remarkably enhanced under visible light irradiation. The degradation rate of TiO2@17%NH2-MIL-101(Fe) was 0.131 min−1, which was about 3.5 and 65 times higher than that of NH2-MIL-101(Fe) and TiO2, respectively. © 2020 Science China Press
关键词	Bandgap Conjugation effect Electron transfer capability Metal-organic frameworks Photocatalysis
英文关键词	Aromatic compounds; Carboxylation; Degradation; Density functional theory; Electron transitions; Energy gap; Heterojunctions; Irradiation; Light; Metal-Organic Frameworks; Nanocomposites; Nanospheres; Organic polymers; Organometallics; Oxygen vacancies; Photocatalysis; Photocatalytic activity; Titanium dioxide; Bidentate carboxylates; Carbon nanosphere; Conjugation effects; Electron transfer; High photocatalytic activities; Hollow nanospheres; Metalorganic frameworks (MOFs); Visible-light irradiation; Iron compounds
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/207146
作者单位	Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, United States; Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao, 028000, China
推荐引用方式 GB/T 7714	Ma Y.,Lu Y.,Hai G.,et al. Bidentate carboxylate linked TiO2 with NH2-MIL-101(Fe) photocatalyst: a conjugation effect platform for high photocatalytic activity under visible light irradiation[J],2020,65(8).
APA	Ma Y..,Lu Y..,Hai G..,Dong W..,Li R..,...&Wang G..(2020).Bidentate carboxylate linked TiO2 with NH2-MIL-101(Fe) photocatalyst: a conjugation effect platform for high photocatalytic activity under visible light irradiation.Science Bulletin,65(8).
MLA	Ma Y.,et al."Bidentate carboxylate linked TiO2 with NH2-MIL-101(Fe) photocatalyst: a conjugation effect platform for high photocatalytic activity under visible light irradiation".Science Bulletin 65.8(2020).