摘要
研制了一种以壳聚糖为基质的具有环境安全特性的水质净化吸附剂。研究了该吸附剂的基本理化特性以及对水中微量重金属Cd2+、Cu2+、Zn2+的净化吸附效果。结果表明,吸附剂对重金属Cd2+、Cu2+、Zn2+的吸附主要是单分子层吸附,当pH为6,投加量为4g/L,吸附剂对Cd2+、Cu2+、Zn2+去除率分别达到90.9%、97.4%和95.9%。结合以前的研究结果,该吸附剂对水中微量的有机物和重金属均有较好的吸附效果.该吸附剂是一类具有开发前景的水处理材料。
A safe water purification sorbent based on chitosan was developed.The physical and chemical characteristics and the adsorbability removing heavy metal ions of the sorbent were studied.The results showed that single layer adsorption occurred during the adsorption process,the sorbent could adsorb 90.9% of Cd2+,97.4% of Cu2+ and 95.9% of Zn2+ when the dosage of the sorbent was 4g/L and the pH was 6.Combined with the previous research data,the absorbent has a favorable adsorbing effect to sorb organic compounds and heavy metals.The sorbent is a material with good exploitation future in water treatment.
出处
《杭州电子科技大学学报（自然科学版）》
2007年第4期33-36,共4页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
杭州电子科技大学科研基金(KYF011505002)
关键词
重金属
吸附
壳聚糖
heavy metal
adsorption
chitosan
