湖南大学学报（自然科学版）2018，Vol.45Issue(6)：150-154,5.DOI:10.16339／j.cnki.hdxbzkb.2018.06.023
一种新型多孔麻纤维重金属吸附剂制备与应用*
Preparation and Application of a New Porous Fibre Sorbent in Heavy Metal Removal
摘要
Abstract
A new porous jute leaf fibres(JLF)sorbent was prepared by soxhlet extraction using chloro-form/n-butyl alcohol(1:1).The JLF sorbent showed a high Cd(Ⅱ)sorption capacity(198.79 mg/g),due to its porous structure with maximal exposure of functional groups.The sorbent could be well conduc-ted in a wide pH range of 5～8.The removal efficiencies of Cd(Ⅱ)kept over 86％in the presence of Ca(Ⅱ)or Mg(Ⅱ)with concentrations of 60 times higher than Cd(Ⅱ).Significantly,JLF kept a high sorption effi-ciency of 97％and structural stability after five cycles.The heavy metals in actual industrial effluent could be efficiently removed,especially,the concentrations of Pb(Ⅱ),Cd(Ⅱ)and Cr(Ⅵ)decreased below 0.001 mg/L with a low sorbent dosage of 2 g/L.The sorption mainly occurred between metal ions and carboxyl groups,determined by FTIR and XPS methods.关键词
麻纤维/索氏提取/重金属/吸附Key words
jute fibre/soxhlet extraction/heavy metals/adsorption分类
资源环境引用本文复制引用
温岚,马建洪,刘承斌..一种新型多孔麻纤维重金属吸附剂制备与应用*[J].湖南大学学报（自然科学版）,2018,45(6):150-154,5.基金项目
湖南省自然科学基金资助项目(2015JJ3130),Natural Science Foundation of Hunan Province(2015JJ3130) （2015JJ3130）
湖南省高校优秀青年人才计划资助项目(15B157),University Foundation of Hunan Province for Excellent Youth (15B157) （15B157）
国家自然科学基金资助项目(51478171,51178173),National Natural Science Foundation of China(51478171,51178173) （51478171,51178173）
