Graphene homojunction: closed-edge bilayer graphene by pseudospin interaction

	Graphene homojunction: closed-edge bilayer graphene by pseudospin interaction
	Yan, J. X.; C. Li; D. Zhan; L. Liu; D. Z. Shen; J. L. Kuo; S. S. Chen and Z. X. Shen
	2016
发表期刊	Nanoscale
卷号	8 期号:17
摘要	A series of 2D sheet Bi2OxS3-x/Nb6O17 (Bi/Nb) heterostructure photocatalysts were synthesized through a facile hydrothermal vulcanization method between Bi3+ exchanged K4Nb6O17 and thiourea (NH2CSNH2). XRD results confirm that the heterostructures were composed of Bi2OxS3-x and Nb6O17. HRTEM indicates that Bi2OxS3-x was successfully intercalated into layers of K4Nb6O17. Such large interfacial contacts can be beneficial to the transfer and separation of photogenerated charge carriers. Thus the composites exhibit good photocatalytic performance for the degradation of methyl orange (MO) under visible light irradiation (lambda > 400 nm), which is superior to that of both precursors, pure Bi2S3 and K4Nb6O17. Radical capture tests reveal that photogenerated holes h(+) and O-center dot(2)- play important roles in the photodegradation of MO. And based on the UV-visible diffuse reflectance spectra (DRS) and the band gap of the semiconductors, the mechanism of the enhanced visible light photocatalytic activity of these composites has been proposed.
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57330
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yan, J. X.,C. Li,D. Zhan,et al. Graphene homojunction: closed-edge bilayer graphene by pseudospin interaction[J]. Nanoscale,2016,8(17).
APA	Yan, J. X..,C. Li.,D. Zhan.,L. Liu.,D. Z. Shen.,...&S. S. Chen and Z. X. Shen.(2016).Graphene homojunction: closed-edge bilayer graphene by pseudospin interaction.Nanoscale,8(17).
MLA	Yan, J. X.,et al."Graphene homojunction: closed-edge bilayer graphene by pseudospin interaction".Nanoscale 8.17(2016).

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