LED光源下钼酸铋光催化降解染料废水的研究  

Study on Photocatalytic Degradation of Dye Wastewater by Bismuth Molybdate under LED Light Source

作　　者：曾祥桉 林镕浩 李泽胜 张建涛 周建敏 ZENG Xiangan;LIN Ronghao;LI Zesheng;ZHANG Jiantao;ZHOU Jianmin(College of Chemistry, Guangdong University of Petrochemical Technology,Maoming 525000, China)

机构地区：[1]广东石油化工学院化学学院,广东茂名525000

出　　处：《广东石油化工学院学报》2020年第4期19-22,共4页Journal of Guangdong University of Petrochemical Technology

基　　金：国家自然科学基金(21606052);广东省创新强校教育科研类资助项目(2016GXJK112);广东石油化工学院2018年大学生创新创业校级培育计划项目(733126);2017年广东省创新创业教育课程和应用型人才培养课程项目;2017年广东省本科高校高等教育教学改革项目;广东石油化工学院教学团队项目(JXTD201922)。

摘　　要：以五水硝酸铋和无水钼酸钠为反应原料,采用水热法制备钼酸铋(Bi2MoO6)。以制得的钼酸铋作为光催化剂,次甲基蓝为模拟染料,LED灯为光源,考察钼酸铋用量、次甲基蓝初始质量浓度、温度等因素,对光催化降解次甲基蓝的影响。结果表明,次甲基蓝初始质量浓度为5 mg/L、钼酸铋用量为50 mg/L、温度为室温(27℃)时,降解率可达98.27%。Bismuth molybdate(Bi2MoO6)is prepared by hydrothermal method with bismuth nitrate pentahydrate and anhydrous sodium molybdate as raw materials.Bismuth molybdate is used as photocatalyst,and submethyl blue is used as the simulated dye while LED light is the light source.The factors which affect photocatalytic degradation of methyl-blue,including the amount of bismuth molybdate,the initial concentration of methylene blue,and the temperature,are all investigated.The results show that when the initial concentration of methylene blue is 5 mg·L^-1,the dosage of bismuth molybdate is 50 mg·L^-1,and the room temperature is 27℃,the degradation rate can reach 98.27%.

关 键 词：钼酸铋 次甲基蓝 降解 染料废水 光催化 

分 类 号：O643[理学—物理化学] X5[理学—化学]