期刊论文

Shi, Weiqun

英文

Environmental Science & Technology

0013-936X

2018

52

18

10748-10756

10.1021/acs.est.8b03711

This work was supported by the Natural Science Foundation of China (grant nos. 11675192, 21577144, 21790373, and 21790370) and the Science Challenge Project (TZ2016004). Research of J.K.G. was supported by the Center for Actinide Science and Technology, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under award number DE-SC0016568. We are grateful to the staff of Beijing Synchrotron Radiation Facility (BSRF) for EXAFS and XANES measurement. We thank Wuqing Tao and Shuangxiao Li for optimizing the synthesis method of Ti2CTx.

本校为其他机构

Although reduction of highly mobile U(VI) to less soluble U(IV) has been long considered an effective approach to in situ environmental remediation of uranium, candidate reducing agents are largely limited to Fe-based materials and microbials. The importance of titanium-containing compounds in natural uranium ore deposits suggests a role for titanium in uranium migration. Herein, for the first time, a two-dimensional transition metal carbide, Ti2CTx, is shown to efficiently remove uranium via a sorption-reduction strategy. Batch experiments demonstrate that TiC2Tx exhibits excellent U(VI) remo...