摘要
以柚子皮纤维素、硫代乙醇酸为基本原料,制备巯基纤维素(SC)新型吸附剂,用其对含Cu2+的溶液进行了静态吸附研究。本文探讨了Cu2+初始浓度、pH值、吸附时间、反应温度、吸附剂用量等因素对吸附性能的影响,结果表明:在pH为6.5、Cu2+浓度为100mg/L和吸附剂为0.2g时,常温条件下吸附2h后Cu2+去除率和吸附容量分别达到98.03%和24.5068mg/g,吸附反应符合Langmuir和Freundlich等温方程。
The sulfur-containing cellulose （SC） was a new type absorbent prepared by using shaddock peel cellulose and thiogly- collic acid. The product was then used to remove Cu^2＋ from simulated wastewater. The adsorption experiments discovered that adsorption affect was controlled by the initial concentration of Cu^2＋ , pH values in wastewater, adsorption period, the consumption of SC and the reaction temperature. The results also showed that the rate of the removal of Cu^2＋ by SC of 0.2g could get up to 98.03% and the adsorption capacity was up to 24. 5068 mg/g when the initial concentration of Cu^2- in wastewater wasl00mg/L, pH values was 6.5, adsorption period was 2h, and room temperature. The adsorption isotherms could be well fitted by both Langmuir and Freundlich equation.
出处
《衡阳师范学院学报》
2007年第6期144-147,共4页
Journal of Hengyang Normal University
基金
湖南省教育厅一般项目(06C192)
湖南省人文地理学重点建设学科资助(070502)
关键词
巯基纤维素
铜离子
吸附研究
sulfur-containing cellulose
Cu^2＋
absorption characteristics
