| 掺镍TiO2的微波合成及催化降解有机废水 |
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| 引用本文： | 朱金兰,廖学红.掺镍TiO2的微波合成及催化降解有机废水[J].湖北农业科学,2012,51(12):2586-2589. |
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| 作者姓名： | 朱金兰 廖学红 |
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| 作者单位： | 黄冈师范学院化学与生命科学学院/经济林木种质改良与资源综合利用湖北省重点实验室,湖北黄冈,438000 |
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| 基金项目： | 湖北省教育厅自然科学项目重点基金(D200627001);黄冈师范学院功能材料研究学术创新团队项目 |
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| 摘 要： | 以氯化镍和硫酸钛为原料,以十二烷基硫酸钠为表面活性剂,通过直接投料微波合成了掺镍二氧化钛(Ni2+TiO2).以催化降解甲基橙为模型来考察其可见光光催化活性,研究了Ni的掺杂量、热处理温度、双氧水投加量、溶液酸度及掺Ni2+TiO2光催化剂用量等因素对光催化性能的影响.结果表明,当Ni2+/TiO2复合物的直接投料摩尔比为0.8％,在500℃的温度下热处理2h,催化剂用量为1.0 g/L,H2O2投加量为3 mL/L,溶液pH 5的条件下,可见光催化效果最好,此时2 mg/L的甲基橙溶液经光催化降解40min后,降解率达到94.5％.
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| 关 键 词： | Ni2+掺杂 二氧化钛 微波合成 光催化 甲基橙 |
Microwave Synthesis of Ni2+-Doped TiO2 and Its Application of Photocatalytic Degradation of Organic Waste Water |
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| ZHU Jin-lan
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LIAO Xue-hong.Microwave Synthesis of Ni2+-Doped TiO2 and Its Application of Photocatalytic Degradation of Organic Waste Water[J].Hubei Agricultural Sciences,2012,51(12):2586-2589. |
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| Authors: | ZHU Jin-lan LIAO Xue-hong |
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| Institution: | (Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization / College of Chemistry and Life Science,Huanggang Normal University,Huanggang 438000,Hubei,China) |
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| Abstract: | Ni2+-doped TiO2 was prepared by nickel(II) chloride and titanium sulfate with sodium dodecyl sulfate as surfactant under microwave irradiation.The photocatalytic activity of Ni2+-doped TiO2 was analyzed by degrading methyl orange solution.The factors including inventory molar ratio and concentration of Ni2+-doped,calcined temperature,amount of hydrogen peroxide,acidity of solution and content of Ni2+-doped TiO2 were investigated.The results showed that when Ni2+-doped TiO2 composite’s inventory molar ratio was 0.8% while the concentration was 1.0 g/L,the calcined at 500 ℃ for 2 h in pH 5 with C(H2O2) = 3 mL/L,the degradation rate of TiO2 for 2 mg/L methyl orange reached 94.5% in 40 min. |
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| Keywords: | Ni2+-doped titanium dioxide microwave synthesis photocatalysis methyl orange |
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