摘要
通过水热法合成了MCM-41分子筛,通过XRD,N2吸附-脱附对样品进行了表征。以MCM-41分子筛作为吸附剂,以罗丹明B溶液模拟染料废水,进行了吸附脱色实验,考察了吸附时的pH值、温度、浓度、平衡时间等因素对吸附性能的影响。研究发现在较宽的pH值范围(3～9)和低温(5～20℃)时,MCM-41分子筛对于罗丹明B表现出优异的吸附性能,每克吸附质量可达到113～141mg。
Mesoporous silica molecular sieve（MCM-41） has been synthesized by hydrothermal method.The samples were characterized by XRD and N2 adsorption-desorption methods.The adsorption properties of MCM-41 to Rhodamine B were studied detailedly.It was found that Rhodamine B adsorption capacity depends on pH of solution,initial concentration,temperatures and equilibrium time.The pH value and temperature was in a wide range of 3～9 and 5～20℃,respectively.The adsorptive capacity of MCM-41 to Rhodamine B was 113～141mg/g.
出处
《环境科技》
2010年第4期10-12,16,共4页
Environmental Science and Technology
基金
贵州省省基金资助项目[黔科合J字[2007]2013号]
贵州大学人才基金[X060025]资助项目
