Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)

doi:10.1016/j.apsusc.2019.03.330

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)
	Li, Ping 1; Wang, Jingjing 1,2; Peng, Tong 3; Wang, Yun 1; Liang, Jianjun 1; Pan, Duoqiang 2; Fan, Qiaohui 1
刊名	APPLIED SURFACE SCIENCE
	2019-07-31
卷号	483 页码:670-676
关键词	Uranium Photoreduction Anatase Rutile Alignment
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2019.03.330
英文摘要	The photoreduction of uranium over TiO2 provides an important pathway to uranium resource utilization and pollution abatement. However, the impact of the TiO2 crystalline type on photocatalytic reduction of U(VI) is still unclear. In this study, the influence of crystal type of TiO2 on U(VI) photoreduction was studied. The results showed that rutile was more reactive for the photocatalytic reduction of U(VI) than anatase. Interestingly, an obvious synergistic effect was observed for mechanically mixed rutile-anatase and the photoconverted UO2 particles preferred to precipitate on rutile surface. The optimum efficiency was achieved for the mixture containing 30 wt% anatase and 70 wt% rutile. The anatase {101} planes tended to match up with rutile {110} facets after the two minerals were mixed. The formation of rutile-anatase aggregates led to the transfer of photo-generated electrons from anatase to rutile. This process could prolong the lifetime of carriers, facilitating U(VI) reduction.
资助项目	National Natural Science Foundation of China[21601169] ; National Natural Science Foundation of China[21601179] ; National Natural Science Foundation of China[21876172] ; National Natural Science Foundation of China[41573128] ; Natural Science Foundation of Gansu Province[17JR5RA309] ; "100-Talent" program from Chinese Academy of Sciences ; CAS "Light of West China" Program ; Key Laboratory Project of Gansu Province[1309RTSA041]
WOS关键词	SURFACE-CATALYZED-HYDROLYSIS ; AQUEOUS-SOLUTION ; TIO2 PARTICLES ; VISIBLE-LIGHT ; HETEROGENEOUS PHOTOCATALYSIS ; MOLECULAR-DYNAMICS ; 001 FACETS ; URANIUM(VI) ; REDUCTION ; REMOVAL
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000471105000074
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Gansu Province ; Natural Science Foundation of Gansu Province ; "100-Talent" program from Chinese Academy of Sciences ; "100-Talent" program from Chinese Academy of Sciences ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Gansu Province ; Natural Science Foundation of Gansu Province ; "100-Talent" program from Chinese Academy of Sciences ; "100-Talent" program from Chinese Academy of Sciences ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Gansu Province ; Natural Science Foundation of Gansu Province ; "100-Talent" program from Chinese Academy of Sciences ; "100-Talent" program from Chinese Academy of Sciences ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Gansu Province ; Natural Science Foundation of Gansu Province ; "100-Talent" program from Chinese Academy of Sciences ; "100-Talent" program from Chinese Academy of Sciences ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; Key Laboratory Project of Gansu Province ; Key Laboratory Project of Gansu Province
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92546]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Li, Ping; Fan, Qiaohui
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Gansu, Peoples R China 3.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Wang, Jingjing,Peng, Tong,et al. Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)[J]. APPLIED SURFACE SCIENCE,2019,483:670-676.
APA	Li, Ping.,Wang, Jingjing.,Peng, Tong.,Wang, Yun.,Liang, Jianjun.,...&Fan, Qiaohui.(2019).Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI).APPLIED SURFACE SCIENCE,483,670-676.
MLA	Li, Ping,et al."Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)".APPLIED SURFACE SCIENCE 483(2019):670-676.