应用化学2017，Vol.34Issue(8)：891-898,8.DOI:10.11944/j.issn.1000-0518.2017.08.160299
丁二酸酐接枝纤维素纳米纤维膜及其重金属离子吸附
Fabrication of Succinic Acid Anhydride Grafted Cellulose Nanofiber Membrane and Its Adsorption of Heavy Metal Ions
摘要
Abstract
Triacetate cellulose(TCA) porous nanofiber membranes(Cell) with diameter of (110±28) nm were successfully prepared by thermally induced phase separation.Succinic acid anhydride grafted cellulose(Cell-g-SAA) nanofiber membranes were obtained through hydrolyzation and grafting of TCA nanofibers.The Cell and Cell-g-SAA membranes were used for the adsorption of Cu2+ and Pb2+.The adsorption kinetics and thermodynamics were studied and found to fit pseudo-second-order and Langmuir model.Compared with cellulose membranes, the max adsorption capacity of Cell-g-SAA membranes for Cu2+ and Pb2+ increases from 51.73 and 34.29 mg/g to 116.41 and 51.73 mg/g, respectively.The adsorptions of Cu2+ and Pb2+ on the Cell and Cell-g-SAA membranes are more agreeable with monolayer adsorption mode via mainly chemical interactions.关键词
丁二酸酐/接枝/纳米纤维/重金属/吸附Key words
succinic acid anhydride/grafting/nanofibers/heavy metal/adsorption分类
化学化工引用本文复制引用
陈培珍,刘瑞来,赵瑨云,饶瑞晔..丁二酸酐接枝纤维素纳米纤维膜及其重金属离子吸附[J].应用化学,2017,34(8):891-898,8.基金项目
国家自然科学基金(51406141)、福建省教育厅JK类项目(2014052,2012055)、南平市科技局自然科学基金(2011DJ10)资助 （51406141）
Supported by the National Natural Science Foundation of China(No.51406141), JK Project of Fujian Educational Bureau(No 2014052, No.2012055), Natural Science Foundation of Nanping Science and Technology Bureau(No.2011DJ10) （No.51406141）
