摘要
通过考察不同吸附剂投加量、吸附时间、溶液初始浓度及pH等条件下的吸附情况,分析研究吸附过程的动力学,综合研究高锰酸钾改性花生壳吸附亚甲基蓝的特性.结果表明:吸附4h达到平衡,吸附过程更符合准二级动力学模型.在25℃,pH为7,亚甲基蓝初始浓度为10mg/L,改性花生壳投加量为0.8g时,吸附率为85.48%,表明该改性花生壳对重金属离子和亚甲基蓝均有较好的吸附能力.
Influence of adsorbent quantity,initial solution pH,adsorption time and the initial concentration of solution on adsorption were investigated to infer the adsorption characters of MB on Potassium Permanganate modified peanut shell. Furthermore, the adsorption kinetic curve were fitted. The results indicated that the adsorption reached equilibrium after 4 h. The adsorption kinetic datas of MB well fittedpseudo-second-order kinetic model. When the initial concentration of adsorbate solution was about 10 mg/L, the adsorption capacity of the peanut shell to MB were 85.48% under the condition at 25℃ pH was 7 and the peanut shell quantity was 0.8 g, showed the good adsorption ability of modified peanut shell for heavy metal ions and methylene blue.
出处
《太原师范学院学报（自然科学版）》
2016年第3期87-90,共4页
Journal of Taiyuan Normal University:Natural Science Edition
基金
国家自然科学基金项目(41073088)
国家水体污染控制与治理科技重大专项(2009ZX07211001)
关键词
改性花生壳
亚甲基蓝
吸附
modified peanut shell
methylene blue
adsorption
