Sodium Lignosulphonate-Polyvinyl Alcohol Bioadsorbent: Synthesis,Characterization and Adsorption for Pb (Ⅱ)
A novel sodium lignosulphonate (SLS)-polyvinyl alcohol (PVA) spherical macroporous bioadsorbent (SLSP) was synthesized by reversed phase suspension polymerization. Comparing with powdery and high water solubility SLS, this new spherical bioadsorbent exhibited relative stability under static force. SEM and FTIR proved the cross-linking of SLS and PVA. TG curves of SLS and SLSP indicated that the thermal property of SLS had been improved by cross-linking modification. Meanwhile, comprehensive adsorption study of Pb (II) on this bioadsorbent was conducted regarding the effects of time, initial PH and initial Pb (II) concentration. 90% of Pb (II) from aqueous solution could be removed by 0.4g of the adsorbent at 25℃ for less than 3h. The adsorption process was determined to be consistent with the Langmuir isotherm.
Sodium lignosulphonate PVA Bioadsorbent Pb (Ⅱ) Adsorption
Luo xiaoqing Lin Xiaoyan Luo Xuegang Chen Yan
School of Material Science and Engineering, Southwest University of Science and Technology,Mianyang, Sichuan, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
193-196
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）