木质素磺酸-聚乙基苯胺复合物的银离子吸附性能

doi:10.3969/j.issn.0253-2417.2016.03.006

林产化学与工业 ›› 2016, Vol. 36 ›› Issue (3): 36-42.doi: 10.3969/j.issn.0253-2417.2016.03.006

木质素磺酸-聚乙基苯胺复合物的银离子吸附性能

赖文辉, 王坚持, 陈威涯, 桂祖雁, 吕秋丰

福州大学材料科学与工程学院, 福建福州 350116

收稿日期:2015-04-10 出版日期:2016-06-25 发布日期:2016-07-07
通讯作者: 吕秋丰(1972-),女,河南平顶山人,副教授,硕士生导师,主要从事生物质材料和环境材料研究;E-mail:qiufenglv@163.com,qiufenglv@fzu.edu.cn。 E-mail:qiufenglv@163.com,qiufenglv@fzu.edu.cn
作者简介:赖文辉(1993-),男,福建龙岩人,主要从事生物质材料和环境材料研究
基金资助:
福州大学2013年度国家大学生创新创业训练计划项目(201310386020)

Adsorption Performance of Silver Ions on Lignosulfonate-polyethylaniline Composite

LAI Wen-hui, WANG Jian-chi, CHEN Wei-ya, GUI Zu-yan, LÜ Qiu-feng

College of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, China

Received:2015-04-10 Online:2016-06-25 Published:2016-07-07

摘要/Abstract

摘要： 以木质素磺酸(LS)为分散剂,通过原位聚合法制备了木质素磺酸-聚乙基苯胺(LSP)复合物,研究了LSP的银离子吸附性能。研究结果表明:LS的加入并未对聚乙基苯胺的结构造成破坏;LS不同添加量情况下制备的LSP复合物的银离子吸附性能有较大差异;同时,吸附时间、银离子初始浓度及吸附温度均对LSP复合物的银离子吸附性能有较大影响。当LS添加量为10%时制备的复合物LSP10对银离子具有最优吸附效果,其饱和吸附容量可达1 799.8 mg/g。对吸附溶液pH值的变化及LSP10吸附银离子后产物的分析表明,LSP10对银离子的吸附过程中发生了离子交换和氧化还原反应,银离子被还原成直径为8~72 nm的银纳米颗粒。

关键词: 木质素磺酸, 聚乙基苯胺, 复合物, 银离子, 吸附

Abstract: Lignosulfonate-polyethylaniline (LSP) composite was prepared via an in-situ polymerization from N-ethylaniline (NEA) monomers with using lignosulfonate (LS) as a dispersant. The adsorption performance of silver ions on the LSP composite was examined under different adsorption conditions. The results showed that the structure of polyethylaniline was not destroyed by the introducting of LS. Adsorption performances of silver ions onto LSP composites prepared under different LS feed contents are quite different. Meanwhiles, adsorption conditions including adsorption time, initial silver ion concentration and adsorption temperature, greatly affected the adsorption performances. When the LS feed content was 10%, the obtained LSP10 composite exhibited an optimal silver-ion adsorption capacity with saturated adsorption capacity of 1 799.8 mg/g. Furthermore, the adsorption mechanism was verified by measuring the decline in pH value of the silver-ion solution during the adsorption process, and by characterizing the product of the LSP10 composite after adsorption. The results showed that silver ions were reduced to silver nanoparticles with diameters of 8-72 nm during the adsorption process by ions exchange and redox reaction between the LSP10 composite and silver ions.

Key words: lignosulfonate, polyethylaniline, composite, silver ion, adsorption

中图分类号:

TQ35
TB324

赖文辉, 王坚持, 陈威涯, 桂祖雁, 吕秋丰. 木质素磺酸-聚乙基苯胺复合物的银离子吸附性能[J]. 林产化学与工业, 2016, 36(3): 36-42.

LAI Wen-hui, WANG Jian-chi, CHEN Wei-ya, GUI Zu-yan, LÜ Qiu-feng. Adsorption Performance of Silver Ions on Lignosulfonate-polyethylaniline Composite[J]. Chemistry and Industry of Forest Products, 2016, 36(3): 36-42.

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木质素磺酸-聚乙基苯胺复合物的银离子吸附性能

Adsorption Performance of Silver Ions on Lignosulfonate-polyethylaniline Composite

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