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纳米氯化银光催化降解亚甲基蓝性能的研究 被引量:4

Study on Photocatalyst Degradation of Methylene Blue by Nano-AgCl
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摘要 气液沉淀法制备了氯化银胶体和纳米粉体,并研究了其在紫外光下对亚甲基蓝的催化降解性能。结果表明:氯化银纳米粉体对亚甲基蓝溶液的催化降解效率明显高于胶体氯化银。通过动力学分析,胶体氯化银的光催化过程符合拟一级反应动力学,而氯化银纳米粉体的光催化过程符合双曲线动力学模型。在多次降解实验中,氯化银纳米粉体重复催化效果较好,具有较高的稳定性。 AgCl colloid and nanoparticals were prepared using the gas-liquid chemical precipitation process, and characterized by XRD and TEM. Under UV illumination, photocatalytic degradation of methylene blue in solution by AgCl was investigated. The results showed that AgCl nanoparticals had more photocatalytic degradation efficiency than AgCl colloid. The photocatalytic process of AgCl colloid followed the pseudo first order kinetics, however a hyperbolic model was more suitable for the AgCl nanoparticals. After multiple degradation experiments, AgCl nanoparticals remained good efficiency, which showed well stability and applicability.
出处 《安徽化工》 CAS 2012年第6期13-16,共4页 Anhui Chemical Industry
基金 国家自然科学基金"无机非金属纳米材料的气-液化学沉淀法制备及性质研究"(21001001) 安徽大学人才队伍建设经费资助项目(02203105)
关键词 氯化银 气液沉淀法 光催化 亚甲基蓝 AgCl gas-liquid chemical precipitation process photocatalytic degradation Methylene blue
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