文献类型：期刊文献

英文题名：Interaction of uranium (VI) with titanate nanotubes by macroscopic and spectroscopic investigation

作者：Sheng, Guodong[1];Hu, Jun[4];Alsaedi, Ahmed[3];Shammakh, Wafa[3];Monaquel, Shatha[3];Ye, Feng[1];Li, Hui[1];Huang, Yuying[2];Alshomrani, Ali Saleh[3];Hayat, Tasawar[3];Ahmad, Bashir[3]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Coll Med Sci, Hangzhou 312000, Zhejiang, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil SSRF, Shanghai 201204, Peoples R China;[3]King Abdulaziz Univ, NAAM Res Grp, Fac Sci, Jeddah 21589, Saudi Arabia;[4]Dongguan Univ Technol, Sch Elect Engn, Guangzhou 523808, Guangdong, Peoples R China

年份：2015

卷号：212

起止页码：563

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：SCI-EXPANDED(收录号：WOS:000367630000065)、、EI(收录号：20154201397783)、Scopus(收录号：2-s2.0-84944061887)、WOS

基金：This project was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, under grant no. 41-130-36-HiCi. The authors, therefore, acknowledge with thanks the technical and financial support from DSR.

语种：英文

外文关键词：Titanate nanotubes; U(VI); Interaction; Humic acid; Fulvic acid

外文摘要：Recently, titanate nanotubes (TNTs) have attracted more and more attention in multidisciplinary areas because of their unique tube structure and many outstanding physicochemical properties. This work examined the interaction of U(VI) with TNTs as a function of water quality factors such as reaction time, medium pH, ionic strength, solid content, humic acid (HA) or fulvic acid (FA) by a combined macroscopic and spectroscopic investigation. The results indicated that the U(VI) interaction was dependent on ionic strength under acidic medium, while U(VI) interaction was independent on ionic strength under alkaline medium. Combined with the spectroscopic investigation, it is revealed that outer-sphere surface complex and inner-sphere surface complex can occur simultaneously during U(VI) interaction with TNT sample. Besides, for the first time, we found a positive role of HA and FA in U(VI) interaction with TNTs at low pH values, whereas we observed a negative role of HA and FA in U(VI) interaction with TNTs at high pH values. Results indicated that TNTs can be used as an excellent adsorbent for capturing U(VI) from aqueous environments. Considering the low cost of TNTs, we can conclude that TNTs show great application potential in the disposal and remediation of U(VI)-contaminated wastewaters and groundwater. (c) 2015 Elsevier B.V. All rights reserved.