文献类型：期刊文献

英文题名：Two-dimensional MAX-derived titanate nanostructures for efficient removal of Pb(II)

作者：Gu, Pengcheng[1];Zhang, Sai[1];Zhang, Chenlu[1];Wang, Xiangxue[1];Khan, Ayub[1];Wen, Tao[1];Hu, Baowei[2];Alsaedi, Ahmed[3];Hayat, Tasawar[3];Wang, Xiangke[1,2]

机构：[1]North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China;[2]Shaoxing Univ, Sch Life Sci, Huancheng West Rd 508, Shaoxing 312000, Peoples R China;[3]King Abdulaziz Univ, Saudi Arabia NAAM Res Grp, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia

年份：2019

卷号：48

期号：6

起止页码：2100

外文期刊名：DALTON TRANSACTIONS

收录：SCI-EXPANDED(收录号：WOS:000457874200019)、、EI(收录号：20190606482965)、Scopus(收录号：2-s2.0-85061075368)、WOS

基金：The financial support from the Science Challenge Project (TZ2016004), the National Key Research and Development Program of China (2017YFA0207002), NSFC (21607042, 21707033, 21577032, 21777039), the Fundamental Research Funds for the Central Universities (JB2017193, 2017MS045, 2017YQ001, 2018ZD11), the NCEPU "Double First-Class" Graduate Talent Cultivation Program" (035/XM1805316).

语种：英文

外文关键词：Adsorption - Ion exchange - Nanostructures - Waste treatment

外文摘要：Two-dimensional (2D) nanomaterials have been identified as one of the promising materials due to their great promise for waste treatment. Currently, the investigation of wastewater remediation is highly imperative and still remains challenging. Here, a novel class of 2D MAX@titanate nanocomposites was fabricated by a simple oxidation and alkalization method, and they exhibited different morphologies and impressive elimination performance. The Pb(II) uptake processes were dramatically affected by the solution pH and reached equilibrium quickly. Abundant functional groups and enhanced specific surface areas endowed T-NTO nanofibers with outstanding adsorption capacity of 328.9 mg g(-1) at pH = 5.0 and T = 298 K, which was much higher than that of T-KTO nanoribbons. Moreover, the possible mechanism was expounded with the aid of Raman, FT-IR, XRD and XPS analyses, in which the synergistic effect of surface complexation and ion exchange significantly contributed to the adsorption performance. On the basis of above analyses, this study not only presents a novel and facile strategy for preparing T-NTO and T-KTO nanostructures with superior adsorption capacity, but also broadens the prospective applications of other functional MAX-derived nanostructures in environmental cleanup.