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锗酸锶纳米线光催化降解罗丹明B的研究
引用本文:蒋宇翔,王帅,李洋,田浪,金海波,裴立宅. 锗酸锶纳米线光催化降解罗丹明B的研究[J]. 铜业工程, 2014, 0(4): 19-22
作者姓名:蒋宇翔  王帅  李洋  田浪  金海波  裴立宅
作者单位:安徽工业大学材料科学与工程学院,安徽马鞍山243002
基金项目:安徽省大学生创新创业训练计划项目(AH201310360259);安徽工业大学SRTP项目(2013013Z);安徽省科技厅自然科学基金资助项目(1208085QE98)
摘    要:以锗酸锶纳米线作为光催化材料,分析了光照时间、锗酸锶纳米线用量及罗丹明B浓度对锗酸锶纳米线光催化降解罗丹明B的影响。固体紫外漫散射光谱表明锗酸锶纳米线属于典型的半导体,禁带宽度为3.67eV。随着光照时间的增加,罗丹明B的降解率增加。罗丹明B的起始浓度为10mgL-1、锗酸锶纳米线用量为20mg及光照时间4h时,罗丹明B的降解率为72.39%。随着罗丹明B浓度的增加,其降解率降低至34.92%。

关 键 词:锗酸锶纳米线  光催化  扫描电子显微镜  罗丹明B

Study on the Photocatalytic Degradation of Rhodamine B using Strontium Germanate Nanowires
JIANG Yu-xiang,WANG Shuai,LI Yang,TIAN Lang,JIN Hai-bo,PEI Li-zhai. Study on the Photocatalytic Degradation of Rhodamine B using Strontium Germanate Nanowires[J]. Copper Engineering, 2014, 0(4): 19-22
Authors:JIANG Yu-xiang  WANG Shuai  LI Yang  TIAN Lang  JIN Hai-bo  PEI Li-zhai
Affiliation:( School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, Anhui, China)
Abstract:The effect of the violet-visible irradiation time, content of the strontium germanate nanowires and rhodamine B ( RB) concentration on the photocatalytic degradation RB has been investigated using strontium germanate nanowires as the photocatalyst. UV-vis diffusion reflectance spectrum of the strontium germanate nanowires shows that the strontium germanate nanowires belong to typical semiconductor with a band gap of 3. 67 eV. The results show that the RB degradation ratio increases with the increase of the irradiation time. The degradation ratio will be 72. 39% when the initial RB concentration is 10 mgL-1 , content of the strontium germanate nanowires are 20 mg and irradiation time is 4 h. The RB degradation ratio decreases to 34. 92% with the increase of the RB concentration.
Keywords:strontium germanate nanowires  photocatalysis  scanning electron microscopy  rhodamine B (RB)
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