中国食品学报2011，Vol.11Issue(4)：83-89,7.
绿茶微粉对染料亚甲基蓝和孔雀石绿的吸附研究
Adsorption Effects of Green Tea Waste on the Dye-Methylene Blue and Malachite Green
摘要
Abstract
The methylene blue (MB) and malachite green (MG) are industrial dyes which cause the water pollution. The study investigated the characters of adsorption with different pH value, tea waste amount, particles size and contact time. The kinetics curves and isotherms were examined. The results showed that green tea waste had the good effects on adsorption of MB and MG, and the smaller particles of green tea waste had the better adsorption effect. The optimum pH value for MB and MG were 7 and 5, respectively. The maximum capacities of MB and MG were 19.37 and 16.50 mg/g, respectively. After 240 min of the contact time at the initial dye concentration of 20 mg/L, the equilibrium were obtained as well. The results were fitted to Pseudo-second-order kinetic models. The experimental biosorption equilibrium data of both MB and MG were in agreement with Langmuir and Freundlich adsorption isotherm, respectively.关键词
绿茶微粉/亚甲基蓝/孔雀石绿/吸附Key words
green tea waste/ methylene blue/ malachite green/ adsorption引用本文复制引用
王艳,苏雅娟,李平,刘博..绿茶微粉对染料亚甲基蓝和孔雀石绿的吸附研究[J].中国食品学报,2011,11(4):83-89,7.基金项目
国家自然科学基金(No.20976138) （No.20976138）
上海市自然科学基金(No.09ZR 1434500) （No.09ZR 1434500）
上海市分子催化和功能材料重点实验室资助项目(2010MCIMKFO3) （2010MCIMKFO3）
