【摘 要】
：
以低温燃烧法制备钨酸铋（LCM-Bi2WO6）,并表征了其晶体结构、形貌特征、等电点及紫外漫反射谱,同时以染料罗丹明B（Rh B）为目标污染物（25 mg/L,p H=4）,考察了所制备Bi2WO6的吸附性能
【机 构】
：
暨南大学环境学院,暨南大学生态学系
【基金项目】
：
国家自然科学基金（41173101,41301337）, 广东省自然科学基金重点项目（2011020003196）, 广东省高校高层次人才项目, 东莞市科技计划项目（2012108102043）
论文部分内容阅读
以低温燃烧法制备钨酸铋（LCM-Bi2WO6）,并表征了其晶体结构、形貌特征、等电点及紫外漫反射谱,同时以染料罗丹明B（Rh B）为目标污染物（25 mg/L,p H=4）,考察了所制备Bi2WO6的吸附性能和光催化性能,并探讨了Rh B溶液p H（1、4、7、10）及酸度调节剂成分（盐酸和硫酸）的影响。结果表明,所制备Bi2WO6为正交相,吸收极限波长为455 nm,禁带宽度为2.72 e V,晶格粒径为14.7 nm,等电点为3.43;其对Rh B的吸附和光催化效果强于水热法制备Bi2WO6和二氧化钛
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