摘要
为了提高有机染料污染物的降解效率,通过溶胶凝胶-水热法直接合成具有复合结构的Fe_xO_y/SBA-15磁性材料,采用XRD和VSM技术对其结构及性能进行表征,结果显示掺杂的纳米颗粒Fe_xO_y存在于介孔分子筛孔壁;进一步研究了其光催化降解甲基橙的优化条件,得到在甲基橙浓度15 mg/L、溶液pH3、反应温度40℃时降解效果最好,最大降解率为85.20%。
In order to improve the degradation efficiency of organic dye pollutants, FexOy/SBA - 15 composite waa, synthesized directly by sol -gel and hydrothermal method, and characterized by means of XRD and VSM technology. Meanwhile, the effective factors were studied onphotocatalytic degradation efficiency of methyl orange. The re- suits show that FexOr nanoparticle werefilled on SBA -15 mesoporous wall ;the degradation rate is best when the con- eentration of methyl orange is 15 mg/L, pH is 3 and reaction temperature is 40 ℃, and the maximum degradation rate is 85.2%.
出处
《化工时刊》
CAS
2017年第10期3-5,46,共4页
Chemical Industry Times
基金
陕西理工学院2016大学生创新创业训练计划项目(2016046)
