文献类型：会议论文

英文题名：Interaction of Eu(III) on magnetic biochar investigated by batch, spectroscopic and modeling techniques

作者：Zhu, Yuling[1];Zheng, Cong[1];Wu, Siying[1];Song, Yuanzhi[1];Hu, Baowei[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Huancheng West Rd 508, Shaoxing 312000, Peoples R China

会议论文集：6th Asian-Pacific Symposium on Radiochemistry (APSORC)

会议日期：SEP 17-22, 2017

会议地点：Jeju, SOUTH KOREA

语种：英文

外文关键词：Radionuclides; Spectroscopic analysis; Magnetic biochar; Modeling

外文摘要：Interaction mechanism of Eu(III) on magnetic biochar(MB) was investigated by batch, XPS, EXAFS and modeling techniques. Maximum Eu(III) adsorption capacity on MB is 105.53 mg/g at pH 3.0, which was demonstrated to various functional groups by XPS analysis. No effect of ionic strength revealed inner-sphere surface complexation. According to EXAFS analysis, inner-sphere surface complexation and surface co-precipitation dominated the Eu(III) adsorption at low and high pH, respectively. Eu(III) adsorption can be simulated by surface complexation modeling. These results indicated that MB can be used a promising candidate for the highly effective adsorbent of radionuclides.