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MoS_2/TiO_2复合材料的制备及其光催化降解染料的研究 被引量：4

Preparation of MoS_2/TiO_2 composite catalysts and their photocatalytic dye degradation
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摘要 采用溶胶凝胶法制备了TiO_2及不同质量比例的MoS_2/TiO_2复合催化剂,并对催化剂进行了红外和X射线粉末衍射光谱表征.以甲基蓝为目标染料污染物,利用催化剂对其进行了紫外光催化降解实验,研究表明复合催化剂MoS_2/Ti O2具有较高的稳定性和光催化活性.催化体系在酸性环境中催化性能较好,利用抑制剂反应产生的空穴和·OH自由基对催化反应起关键作用. TiO2 and MoS2/TiO2 composite catalysts with different mass contents were prepared by sol-gel method. The catalysts were characterized by IR and X-ray powder diffraction. Their photocatalytic degradation of methyl blue in water was also investigated under UV irradiation. The results showed that the MoS2/TiO2 composite catalysts had good stability and high photocatalytic activity. The catalytic performance was better in the acidic environment. The holes and ·OH free radicals produced in the reaction may play important roles in the catalytic process.
作者 陈全亮 彤丽格 刘怡伶 腾婕 丁明艺
机构地区 西南民族大学化学与环境保护工程学院
出处 《西南民族大学学报（自然科学版）》 CAS 2017年第1期26-32,共7页 Journal of Southwest Minzu University(Natural Science Edition)
基金 西南民族大学大学生创新项目(S201610656093 X201610656194)
关键词 二氧化钛 二硫化钼 光催化 甲基蓝 自由基 titanium dioxide molybdenum disulfide photocatalysis methyl blue free radical
分类号 O643.3 [理学—物理化学]
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西南民族大学学报（自然科学版）
2017年 第1期

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