搅拌-超声氧化锆纳米管脱色降解甲基橙的研究  

Study on Decolourization and Degradation of Methyl Orange by Stir-ultrasonic ZrO_2 Nanotubes

作　　者：杜鹏[1] 张军芳[2] 赵建玲[3] 王西新[3] 张立斌[3] 

机构地区：[1]衡水学院物理与电子信息系,衡水053000 [2]衡水学院数学与计算机科学系,衡水053000 [3]河北工业大学材料科学与工程学院,天津300130

出　　处：《人工晶体学报》2015年第9期2518-2523,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(50972036)

摘　　要：采用阳极氧化法在有机溶液中制备氧化锆纳米管,以搅拌-超声方法研究其对甲基橙的脱色降解性能。实验采用不同p H值的甲基橙溶液,发现氧化锆纳米管对较强酸性的甲基橙溶液有较理想的脱色降解效果。对比氧化锆粉体、纳米管未退火、退火后(600℃)三种材料,退火后的氧化锆纳米管的脱色降解性能整体最佳。XRD测试显示退火后氧化锆纳米管阵列呈现单斜和四方相的混合体。通过FTIR测试脱色降解后的氧化锆纳米管阵列,显示材料中已经不存在甲基橙分子结构,对比研究发现醌式结构和偶氮式两种结构下脱色降解机理相同。Zirconia（ Zr O2） nanotube arrays were prepared by electrochemical anodic oxidation method.The performance of decolourization and degradation of methyl orange were studied by stir-ultrasound method. The experiments used methyl orange solution with different p H. The results show that the Zr O2 nanotube arrays have an ideal effect with methyl orange solution. Contrast to three different processing conditions（ Zr O2 powder,nanotube arrays,annealed nanotube arrays）,it approved that annealed（ 600℃） Zr O2 nanotube arrays which have monoclinic and tetragonal phase show the best decoloration and degradation performance. XRD showes that the annealed Zr O2 nanotubes have the monoclinic and tetragonal phase. After decolourization and degradation,the FTIR tests were conducted. The results show that the methyl orange molecular doesn＇t exist anymore. There is the same decoloration and degradation mechanism under the structure of the quinoid or azo type.

关 键 词：阳极氧化 氧化锆纳米管 甲基橙 脱色降解 

分 类 号：X703[环境科学与工程—环境工程]