摘要
研究介孔炭材料对亚甲基兰的吸附特性,采用紫外分光光度法分别考察了不同时间、温度、浓度、pH时介孔炭材料对亚甲基兰吸附特性的影响.结果表明,亚甲基兰溶液浓度为5 mg/L,温度为25℃,吸附时间为8 h,pH值在9 h吸附效率最高.介孔炭材料对亚甲基兰的吸附符合二级吸附动力学方程,且吸附等温线符合Freundlich式.
By use of UV spectrophotometry, the absorption characteristics of mesoporous carbon materials on methylene blue are measured at different time, temperature, concentration, PH value of mesoporous carbon materials on methylene blue in the paper. The results show that the absorption reaches the maximum point when the concentration of methylene blue solution is 5mg/L, temperature 25℃, the adsorption time 8 hours, PH value adsorption 9：00. So it is concluded that the absorption of mesoporous carbon materials on methylene blue is consistent with the two kinetics and in line with the absorotion isotherm of Freundlich.
出处
《西安文理学院学报（自然科学版）》
2010年第1期48-53,共6页
Journal of Xi’an University(Natural Science Edition)
基金
国家自然科学基金资助项目(20872085)
西安文理学院科研基金资助项目(KCY200810)
关键词
介孔炭材料
吸附特性
亚甲基兰
紫外分光光度法
mesoporous carbon materials
absorption
methylene blue
UV spectrophotometry
