摘要
研究了会宁凹凸棒石粘土从溶液中吸附金属镍离子的过程,考察了吸附时间、Ni(Ⅱ)初始浓度、pH值、吸附剂量以及温度等因素对吸附效果的影响。结果表明,会宁凹凸棒石粘土在吸附时间为20 min、Ni(Ⅱ)初始浓度为30 mg.L-1、pH值为6.0、吸附剂量为0.1 g.(50 mL)-1、温度为20℃的条件下,对Ni(Ⅱ)的吸附率最高达98.4%,最大吸附量为33.1 mg.g-1。表明会宁凹凸棒石粘土对Ni(Ⅱ)有良好的吸附作用。
Adsorption of Ni（Ⅱ） from aqueous solutions by attapulgite clay of Huining city of Gansu province was studied.The effects of adsorption time,initial concentration of Ni（Ⅱ）,pH value,adsorbent quantity and temperature on the adsorption were investigated.The results showed that the maximum adsorption rate of Ni（Ⅱ） of 98.4% and the maximum adsorption amount of 33.1 mg·g-1 could be obtained under the conditions as follows： the adsorption time was 20 min,the initial concentration of Ni（Ⅱ） was 30 mg·L-1,the pH value was 6.0,the adsorbent quantity was 0.1 g·（50 mL）-1 and the temperature was 20℃.The attapulgite clay of Huining exhibited good adsorption performance for Ni（Ⅱ）.
出处
《化学与生物工程》
CAS
2011年第3期85-87,共3页
Chemistry & Bioengineering
