摘要
将粉煤灰与壳聚糖复合得到一种负载吸附剂,研究了其对水溶液中Cr(Ⅵ)的吸附,详细探讨了固体吸附剂吸附Cr(Ⅵ)的最佳工艺条件。结果表明,该吸附剂对Cr(Ⅵ)具有较好的吸附性能,最佳吸附条件是:温度为25℃,pH=5,Cr(Ⅵ)初始质量浓度为20mg/L,吸附剂用量为10g/L,吸附时间为1h,Cr(Ⅵ)的去除率可以达到90%以上。
A kind of adsorbent is made by coating chitosan on the surface of fly ash, its adsorptivity toward Cr（Ⅵ） from aqueous solution is studied, and the optimal condition for Cr（Ⅵ） adsorption is discussed in details. The results show that, the adsorbent has good adsorptivity toward Cr（Ⅵ）, the optimal condition for the adsorption process is as follows： the temperature is 25 ℃, the value of pH is 5, initial mass concentration of Cr（Ⅵ） is 20mg/L, the dosage of adsorbent is 10g/L,the adsorption equilibrium time is lh, and the removal ratio of Cr（VD is over 90%.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2009年第12期65-67,共3页
Materials Reports
基金
河南省重点科技攻关项目(072102190009)
郑州航院青年基金项目(Q06E038)
