期刊论文

Preparation and characterization of selective adsorbent resin comprising of bentonite/ sodium lignosulfonate graft-polymerized with acrylamide and maleic anhydride

Xie, Jianjun(xiejianjun12@sina.com)

中文

复合材料学报

1000-3851

2016

33

4

797-805

10.13801/j.cnki.fhclxb.20150901.002

国家自然科学基金（31270603） 湖南省研究生科研创新项目（CX2015B285）

本校为第一且通讯机构

以木质素磺酸钠(LS)、丙烯酰胺(AM)、马来酸酐(MAH)为原料,膨润土(Ben)为无机添加剂,过硫酸钾(KPS)为引发剂,N,N'-亚甲基双丙烯酰胺(NMBA)为交联剂,通过溶液自由基接枝共聚法制备了膨润土/木质素磺酸钠接枝丙烯酰胺-马来酸酐(Ben/LS-g-AM-co-MAH)选择性吸附树脂。采用元素分析(EA)、比表面积和孔径分析(BET)、FTIR、核磁共振碳谱(~(13)C NMR)、XRD、SEM-EDS及XPS对所得吸附树脂的组成与结构进行了表征。结果表明:Ben/LS-g-AM-co-MAH的结构中含有大量的酰胺基和羧基基团,其在二元Pb~(2+)/Cu~(2+)溶液中对Pb~(2+)具有较高的吸附量以及良好的吸附选择性。

Selective adsorbent resin comprising of bentonite/sodium lignosulfonate graft-polymerized with acrylamide and maleic anhydride (Ben/LS-g-AM-co-MAH) was prepared by free radical graft solution copolymerization method by using sodium lignosulfonate (LS), acrylamide (AM) and maleic anhydride (MAH) as raw materials, bentonite as inorganic filler, potassium peroxydisulfate(KPS) as initiator, N,N'-methylene-bis-acrylamide (NMBA) as crosslinker. The as-prepared adsorbent resin was characterized by elemental analysis (EA), specific surface area and por...