摘要
采用天然累托石粘土,经十二烷基二甲基苄基氯化胺(1227)有机改性后对水溶液中Zn(II)进行了吸附研究。考察了pH值、吸附剂用量、吸附平衡时间等因素对Zn(II)吸附效果的影响。结果表明,吸附最佳条件是:pH为8,吸附剂用量8g/L,吸附平衡时间40min。从吸附等量线和吸附等温线得知,该吸附满足Freundlich吸附机理,在常温下可自发进行,温度升高对吸附不利。
The adsorption of natural rectorite clay modified by dodecyl benyl dimethyl ammonium chloride (1227) for Zn(II) from aqueous solution was investigated. Several influencing factors such as the pH value, the amount of adsorbent and the time of adsorption equilibrium were examined. The experimental results showed that the optimum condition is pH 8, adsorbent dosage 8g/L, equilibrium time 40min. Furthermore, authors also examined the adsorption isostere and the adsorption isotherm by means of adsorption mechanism research. Results show that the adsorption process can be performed under atmospheric temperature and may be described by Freundlich adsorption equation.
出处
《矿产综合利用》
CAS
北大核心
2003年第6期20-23,共4页
Multipurpose Utilization of Mineral Resources
基金
2002~2003西北工业大学本科毕业设计重点扶持项目
