文献类型：期刊文献

英文题名：Application of biochar derived from rice straw for the removal of Th(IV) from aqueous solution

作者：Dong, Lijia[1];Chang, Kaikai[1];Wang, Linxia[1];Linghu, Wensheng[1];Zhao, Donglin[2];Asiri, Abdullah M.[3];Alamry, Khalid A.[3];Alsaedi, Ahmed[4];Hayat, Tasawar[4,5];Li, Xue[1];Wu, Xilin[6]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Coll Yuanpei, Sch Life Sci, Shaoxing, Zhejiang, Peoples R China;[2]Anhui Univ Architecture, Sch Mat & Chem Engn, Hefei, Anhui, Peoples R China;[3]King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah, Saudi Arabia;[4]King Abdulaziz Univ, Dept Math, NAAM Res Grp, Fac Sci, Jeddah, Saudi Arabia;[5]Quaid I Azam Univ, Dept Math, Islamabad, Pakistan;[6]Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Peoples R China

年份：2018

卷号：53

期号：10

起止页码：1511

外文期刊名：SEPARATION SCIENCE AND TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000433553100006)、、EI(收录号：20175204585118)、Scopus(收录号：2-s2.0-85039042855)、WOS

基金：Financial support from the National Natural Science Foundation of China (31700476) is greatly acknowledged.

语种：英文

外文关键词：Biochar; Th(IV); sorption; electrolyte ions; thermodynamic parameters

外文摘要：Biochar is increasingly used as a low-cost and effective adsorbent for heavy metals in wastewater. Herein, biochar pyrolyzed from rice straw was employed as an adsorbent for the removal of Th(IV) from aqueous solutions. The sorption of Th(IV) on biochar was strongly dependent on pH, but independent on ionic strength at pH < 6.4. The inner-sphere complexation dominated the sorption mechanism of Th(IV) on biochar. The competition for Th(IV) between aqueous or surface-adsorbed cations/anions and functional groups of biochar was pivotal for Th(IV) sorption. The thermodynamic data suggested that Th(IV) sorption was a spontaneous and endothermic process.