| CuO／SnO2/壳聚糖复合材料光催化降解猩红B研究 |
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| 引用本文： | 王炎锋,许赞,王华丽,朱华跃.CuO／SnO2/壳聚糖复合材料光催化降解猩红B研究[J].台州学院学报,2013,35(3):21-26. |
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| 作者姓名： | 王炎锋 许赞 王华丽 朱华跃 |
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| 作者单位： | 台州学院 生命科学院,浙江 台州,318000 |
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| 基金项目： | 台州学院博士启动基金资助项目和台州学院校立科研培育基金项目 |
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| 摘 要： | 采用共沉淀及流延法制备了CuO／SnO2/聚糖复合材料，运用TEM和XRD技术手段对其进行表征，并系统地研究了在猩红B溶液暗态吸附60min后，强化日光照射下催化剂投加量、猩红B初始浓度、无机阴离子和催化剂重复使用对猩红B光催化降解脱色效果的影响。结果表明：当催化剂投加浓度为1．0g／L，pH为6．2时，对初始浓度为15H虮的猩红B进行强光照射300min后，脱色率可达99．19％；而CO3^2-、Cl^-、SO4^2-产和PO4^3-等阴离子对猩红B染料的降解脱色均有不同程度的抑制作用；催化剂重复利用5次后，吸附协同可见光催化处理360rain，对猩红B的脱色率仍可达到98．6996。
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| 关 键 词： | CuO SnO2 糖复合材料 光催化 猩红B |
Study on Photocatalytic Decolorization of Biebrich Red Solution using CuO/SnO2/Chitosan Composites |
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| WANG Yan-feng
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XU Zan
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WANG Hua-li
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ZHU Hua-yue.Study on Photocatalytic Decolorization of Biebrich Red Solution using CuO/SnO2/Chitosan Composites[J].Journal of Taizhou University,2013,35(3):21-26. |
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| Authors: | WANG Yan-feng XU Zan WANG Hua-li ZHU Hua-yue |
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| Institution: | (School of Life Science, Taizhou University, Tiazhou 318000, China) |
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| Abstract: | CuO/SnO2/chitosan composites were prepared by co-precipitalion and solution casting method. The structure and properties of the nano-CuO/SnO2/chitosan composites were characterized by transmission electron microscope （TEM） and X-ray diffraction （XPD）. The effects of photocatalyst dosage, initial concentration of biebrich red （BR）, Idnd of inorganic anions and reusability of the catalyst on decolorization efficiency were in- vestigated under amplified light illurnination with air aeration for 300 rain after adsorption in dark for 60 rain. The experimental results indicated that the decolorization efficiency of 15 mg/L BR solution reached 99.19 % af- ter 360 rain under the condition of pH 6.2 and phptocatalysts dosage of 1.0 g/L. The decolorization of biebrich red was inhibited in the presence of inorganic anions such as CO3^2-, Cl-, SO42- and PO43-. After the photocatalyst was reused for 5 times, dye decolorization efficiency was still about 98.69 %. |
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| Keywords: | nanosized CuO/SnO2/chitosan composites photocatalysis biebrich red |
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