Post-illumination activity of SnO2 nanoparticle-decorated Cu2O nanocubes by H2O2 production in dark from photocatalytic "memory"

IMR OpenIR

	Post-illumination activity of SnO2 nanoparticle-decorated Cu2O nanocubes by H2O2 production in dark from photocatalytic "memory"
	Liu, Lingmei; Sun, Wuzhu; Yang, Weiyi; Li, Qi; Shang, Jian Ku; qili@imr.ac.cn
	2016
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6 页码:-
摘要	Most photocatalysts only function under illumination, while many potential applications require continuous activities in dark. Thus, novel photocatalysts should be developed, which could store part of their photoactivity in "memory" under illumination and then be active from this "memory" after the illumination is turned off for an extended period of time. Here a novel composite photocatalyst of SnO2 nanoparticle-decorated Cu2O nanocubes is developed. Their large conduction band potential difference and the inner electrostatic field formed in the p-n heterojunction provide a strong driving force for photogenerated electrons to move from Cu2O to SnO2 under visible light illumination, which could then be released to react with O-2 in dark to produce H2O2 for its post-illumination activity. This work demonstrates that the selection of decoration components for photocatalysts with the post-illumination photocatalytic "memory" could be largely expanded to semiconductors with conduction band potentials less positive than the two-electron reduction potential of O-2.
部门归属	[liu, lingmei ; sun, wuzhu ; yang, weiyi ; li, qi] chinese acad sci, environm funct mat div, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [shang, jian ku] univ illinois, dept mat sci & engn, urbana, il 61801 usa ; [li, qi] 72 wenhua rd, shenyang 110016, liaoning provin, peoples r china
资助者	National Natural Science Foundation of China [51102246]; Youth Innovation Promotion Association, Chinese Academy of Sciences [Y2N5711171]; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science [Y4N56R1161]
收录类别	sci
语种	英语
WOS记录号	WOS:000370196400001
引用统计	被引频次：81[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75063
专题	中国科学院金属研究所
通讯作者	qili@imr.ac.cn
推荐引用方式 GB/T 7714	Liu, Lingmei,Sun, Wuzhu,Yang, Weiyi,et al. Post-illumination activity of SnO2 nanoparticle-decorated Cu2O nanocubes by H2O2 production in dark from photocatalytic "memory"[J]. SCIENTIFIC REPORTS,2016,6:-.
APA	Liu, Lingmei,Sun, Wuzhu,Yang, Weiyi,Li, Qi,Shang, Jian Ku,&qili@imr.ac.cn.(2016).Post-illumination activity of SnO2 nanoparticle-decorated Cu2O nanocubes by H2O2 production in dark from photocatalytic "memory".SCIENTIFIC REPORTS,6,-.
MLA	Liu, Lingmei,et al."Post-illumination activity of SnO2 nanoparticle-decorated Cu2O nanocubes by H2O2 production in dark from photocatalytic "memory"".SCIENTIFIC REPORTS 6(2016):-.