Amino-functionalized porous PDVB with high adsorption and regeneration performance for fluoride removal from water  

作　　者：Yuanyuan Huang Xianbiao Wang Yongfei Xu Shaojie Feng Jin Liu Huanting Wang 

机构地区：[1]Anhui Province International Research Center on Advanced Building Materials,School of Materials Science and Chemical Engineering,Anhui Jianzhu University,Hefei,230601,China [2]Institute of Solid State Physics,Chinese Academy of Sciences,Hefei,230031,China [3]Anhui Institute of Building Science Research and Design,Hefei,230001,China [4]Department of Chemical Engineering,Monash University,Clayton,Victoria,3800,Australia

出　　处：《Green Chemical Engineering》2021年第2期224-232,共9页绿色化学工程（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant No.21976003);the Major Project of Natural Science Research in Colleges and Universities of Anhui Province(Grant No.KJ2019ZD51);the Key Research and Development Projects in Anhui Province(Grant No.201904b11020041,1708085QE120);the Academic Funding Project for Top Talents in Colleges and Universities of Anhui Province(Grant No.gxbjZD2020077).

摘　　要：Excessive fluoride anions in drinking water are toxic to the health of human beings.In this article,an effective fluoride removal adsorbent on the basis of amino-functionalized porous polydivinylbenzene(PDVB)was prepared through low cost processes,which included solvothermal preparation of porous PDVB and subsequent surface amino-functionalization.The obtained amino-functionalized porous PDVB(A-PDVB)has high surface area of 443 m2 g1 and high adsorption capacity towards fluoride anion up to 105.9 mg g1.Considering adsorbents surface area,the adsorption capacity per unit surface area of A-PDVB is 0.24 mg m2 which is more than 4 times of porous PDVB(0.058 mg m2).The enhanced adsorption performance of A-PDVB was due to amino groups electrostatic interaction coupled with hydrogen bond binding with fluoride anions.In addition,the aminofunctionalized porous PDVB could be regenerated in high efficiency under alkaline conditions.This work not only exhibits the possibility of A-PDVB for application as an environment-friendly adsorbent for fluoride removal but also gives an insight into understanding mechanism of the fluoride anions adsorption onto aminofunctionalized porous PDVB.

关 键 词：AMINO-FUNCTIONALIZATION Porous polydivinylbenzene(PDVB) ADSORPTION REGENERATION Fluoride anion 

分 类 号：TU991.2[建筑科学—市政工程] TQ424[化学工程]