高岭土制备镍钴负载复合光催化剂及其对废水中亚甲基蓝的光降解  

Preparation of Composite Photocatalyst Loaded Ni or Co from Calcined Kaolin and Its Photocatalyst Degradation of Methylene Blue in Waste Water

作　　者：孙雪芳[1] 胡存杰[2] 邵坤[1] 程先忠[1] 

机构地区：[1]武汉工业学院化学与环境工程学院,武汉430023 [2]桂林理工大学化学与生物工程学院,桂林512346

出　　处：《非金属矿》2010年第2期54-56,59,共4页Non-Metallic Mines

基　　金：国家自然科学基金项目(4067206);湖北省科技厅自然科学基金重点项目(2008CDA100)

摘　　要：本实验以煤系高岭土为主要原料制备超细分子筛,并负载过渡金属镍和钴,最终制成镍钴负载超细复合分子筛光催化剂,用于降解工业废水中的亚甲基蓝。实验中探讨了镍钴负载复合分子筛在不同的pH值、H2O2用量、光源等条件下对亚甲基蓝降解的影响。结果表明,在pH值为9的条件下,用光源为20 W紫外线消毒灯照射2h,亚甲基蓝溶液的吸光度明显下降,亚甲基蓝的降解率达到97%以上。The ultrafine zeolite was prepared from calcined kaolin, and then was loaded the transition metals such as Ni or Co by dipping method, It was used in photocatalytic oxidation degradation of methylene blue （MB） in industry wastewater with two levels of three factors orthogonal experiment. The results demonstrated that photodegradation rate of methylene blue was over 97% under UV-visible light irradiation for two hours in the presence of 1% hydrogen peroxide at pH 9.0.

关 键 词：煤系高岭土 复合光催化剂 亚甲基蓝 光降解 废水 

分 类 号：X703[环境科学与工程—环境工程] TD985[矿业工程—选矿]