摘要
研究了腐植酸对硒 (Ⅳ )的吸附行为 ,探讨了固液比、时间、pH、浓度、温度对吸附的影响 ,发现物理吸附与化学吸附并存 ,其吸附平衡服从Freundlich模型 ,导出Freundlich的吸附等温方程q =kc1 .0 2 ,并推出吸附热ΔH =-17.8kJ·mol- 1 。
The adsorption behavior for Se(Ⅳ) on humic acid was studied and the effects of solid to liquid ratio, time, pH, concentration and temperature on the adsorption were investigated. The physical and chemical absorption was observed, and the equation of absorption can be described by Freundlich model. The equation of Freundlich adsorption q=kc 1.02 was obtained and adsorption heat Δ H =-17.8 kJ·mol -1 was found.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2003年第3期413-415,共3页
Chinese Journal of Rare Metals
关键词
腐植酸
硒
吸附
Humic acid
selenium
adsorption
