PREPARATION OF MODIFIED BAGASSE HEMICELLULOSE ON PB2+NEW ADSORPTION

摘要：

　　The new adsorbent of bagasse hemicellulose was prepared through chemical modification of bagasse hemicellulose with the cis-butenedioic anhydride monomer,which introduced high density of carboxyl and increased the chelating ability of hemicellulose absorbing metal.This modified hemicellulose was characterized by FTIR,SEM,and TG methods.In addition,Effects of various environmental paramenters such as cis-butenedioic anhydride dosage,N-bromobutanimide dosage,reaction temperature and reaction time on Pb2+adsorption by modified hemicellulose were investigated.The results showed that the new adsorbent had higher heavy metal adsorption capacity through cis-butenedioic anhydride chemical modification.The optimum conditions for preparation were as follows:the bagasse hemicellulose was 1.0000 g,the cis-butenedioic anhydride dosage was3.0000g,N-bromobutanimide dosage was0.1000g,reaction temperature was 60℃ and reactiontime was 6h.At the optimum condition,the maximum adsorption capacity of Pb2+could reach 89.15mg.g-1.

作者: Dongxue Li Hongxiang Zhu Lijun Wang Xinliang Liu Jinjin Sun Yangmei Chen Yunhua Li

作者单位: College of light Industrial and Food Engineering,Guangxi University,Nanning,53004,China;Guangxi Key College of light Industrial and Food Engineering,Guangxi University,Nanning,53004,China

会议类型: 国际会议

会议名称: 第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)

会议地点: 广州

会议语种:英文

页码: 1-5

在线出版日期: 2016-11-07（万方平台首次上网日期，不代表论文的发表时间）