摘要
通过废弃聚苯乙烯塑料为原料反应生成氯甲基聚苯乙烯,再与二羧甲基二硫代氨基甲酸反应生成一种环保型的巯基胺型螯合树脂,并通过红外光谱表征了树脂结构,考察了树脂吸附金属离子的适宜pH,金属离子去除率随时间变化的情况,吸附机理研究表明,该树脂对重金属离子的吸附符合Langmuir等温线。动力学试验表明,树脂吸附速率较快,30min内可达到平衡,并且能较好的吸附Cr3+、Pb2+、Ni2+、Cu2+,在45℃,其吸附量分别达到了1.2、1.6、1.3、1.8mmo·lg-1。
Waste plastic of polystyrene react to chloromethyl polystyrene as an intermediate raw materials, reacting with two carboxymethyl dithiocarbamate to final react environmental mercapto chelating resin. Infrared spectroscopy analysis structural conditions. Analyzing the most suitable pH, metal removal rate changes with time and study the adsorption capacity of the resin with the Langmuir isotherm. Kinetic experiments show that the adsoption rate of resin was faster, to reach a balance within 30 rain. The maximum ofCr^3＋,Pb^2＋,Ni^2＋,Cu^2＋ adsorption capacity were 1.2, 1.6, 1.3, 1.8 mmol. g^-1 at 45 ℃.
出处
《水处理技术》
CAS
CSCD
北大核心
2011年第3期44-46,51,共4页
Technology of Water Treatment
基金
陕西科技大学研究生创新基金资助项目(2009K02-06)
关键词
环保
巯基胺型
螯合树脂
合成
吸附性能
environmental protection
thiol amine
chelating resin
synthesis
adsorption properties
