摘要
以碱处理后的13X分子筛、硅酸钠为原料,加入模板剂,同时引入La2O3,在水热条件下晶化生成具有良好的吸附性能和光催化性能的新型微孔-介孔复合材料La/13X/MCM-41,并将其应用于壬基酚(NP)的光催化降解。通过XRD、TEM、FT-IR、N2吸附-脱附等技术对复合材料的微观结构进行了表征分析。考察了催化剂用量、NP初始浓度、初始pH、光照时间等对NP光催化降解效率的影响。结果表明:在催化剂用量为0.1 g/L、初始浓度为1 mg/L、初始pH为6、光照时间为210 min的最佳条件下,NP的光催化降解效率可达93%以上,反应符合一级动力学方程,复合材料La/13X/MCM-41具有较高的催化活性。
Photocatalytic degradation of nonylphenol(NP) using the Mirco/mesoporous Composite La/13X/MCM-41,which was synthesized by hydrothermal method as reported in this article,was carried out to test the catalytic activity of the composite material.The synthesized materials were characterized by powder X-ray diffraction patterns(XRD),transmission electron microscopy(TEM),N2 sorption isotherms,fourier-transform infrared(FT-IR).The influencing factors of the NP photodegradation were also evaluated.The NP removal efficiency can reach above 93% when the optimum conditions are as follows catalyst dosage is 0.1g/L,reaction time is 120min,initial pH is 6 and initial concentration is 1 mg/L.The NP photodegradation process obeys first-order reaction.The Mirco/mesoporous Composite La/13X/MCM-41 exhibited higher catalytic activity.
出处
《水资源与水工程学报》
2012年第6期62-65,共4页
Journal of Water Resources and Water Engineering
基金
上海市自然科学基金项目(10ZR1421300)
作者简介
黑晓慧(1987-),女,青岛人,硕士研究生,从事环境功能材料的研制及应用研究
通讯作者:陶红(1967-),贵阳人,博士,教授,从事环境功能材料的研制及其在水处理中的应用研究。