| LaCoO_3钙钛矿型催化剂非均相Fenton处理兰炭废水 |
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| 引用本文： | 高雯雯,弓莹,闫龙,陈碧.LaCoO_3钙钛矿型催化剂非均相Fenton处理兰炭废水[J].工业催化,2017,25(3):71-75. |
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| 作者姓名： | 高雯雯 弓莹 闫龙 陈碧 |
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| 作者单位： | 榆林学院化学与化工学院，陕西 榆林 719000 |
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| 基金项目： | 陕西省科技厅项目(2015GY114)；榆林市科技计划项目(2015CXY-14) |
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| 摘 要： | 以苯甲醇为溶剂,采用水热法制备LaCoO_3钙钛矿型催化剂,研究LaCoO_3钙钛矿型催化剂非均相Fenton处理兰炭废水的最佳工艺条件及催化机理。结果表明,在过氧化氢用量3 m L、LaCoO_3钙钛矿型催化剂用量0.2 g、pH=4和反应温度25℃条件下,LaCoO_3钙钛矿型催化剂非均相Fenton处理兰炭废水的COD去除率达到72.7%,通过自由基捕获剂叔丁醇的加入及一级动力学模型研究非均相Fenton过程机理。
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| 关 键 词： | 催化化学 钙钛矿 LaCoO3催化剂 非均相Fenton 兰炭废水 叔丁醇 |
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Heterogeneous Fenton reaction for degradation of semi-coking waste water over perovskite-type LaCoO3 catalyst |
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| Gao Wenwen,Gong Ying,Yan Long,Chen Bi.#br#
Heterogeneous Fenton reaction for degradation of semi-coking waste water over perovskite-type LaCoO3 catalyst[J].Industrial Catalysis,2017,25(3):71-75. |
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| Authors: | Gao Wenwen Gong Ying Yan Long Chen Bi |
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| Affiliation: | School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,Shaanxi,China |
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| Abstract: | Using benzyl alcohol as the solution,perovskite-type LaCoO3 catalyst was prepared by hydrothermal method.The best process condition and catalytic mechanism of heterogeneous Fenton reaction for degradation of semi-coking waste water over perovskite-type LaCoO3 catalyst were investigated.The results showed that COD removal rate of semi-coking waste water reached 72.7% under the optimal condition as follows:H2O2 amount 3 mL,perovskite-type LaCoO3 catalyst dosage 0.2 g,pH=4 and reaction temperature 25 ℃.The mechanism of heterogeneous Fenton reaction was studied by adding free radical scavenger t-butyl alcohol and first order kinetics model. |
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| Keywords: | catalytic chemistry perovskite LaCoO3 catalyst heterogeneous Fenton reaction semi-coking waste water t-butyl alcohol |
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