| Al_2O_3/TiO_2的制备及光催化降解吡啶 |
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| 引用本文： | 于丽华,钟俊波,沈昱,徐锁洪.Al_2O_3/TiO_2的制备及光催化降解吡啶[J].大连铁道学院学报,2004(1). |
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| 作者姓名： | 于丽华 钟俊波 沈昱 徐锁洪 |
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| 作者单位： | 大连铁道学院环境科学与工程系，大连铁道学院环境科学与工程系，大连铁道学院环境科学与工程系，大连铁道学院环境科学与工程系 辽宁大连，116028，辽宁大连，116028，辽宁大连，116028，辽宁大连，116028 |
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| 摘 要： | 以钛酸四丁酯为原料,Al2O3为载体,用溶胶-凝胶法制备负载型TiO2,在UV-TiO2体系中对吡啶(PD)进行光催化降解,并研究了将TiO2负载在不同铝源所制备的Al2O3后光催化剂的差异,结果表明:负载型TiO2光催化剂加入量为10mg/40mL,吡啶的光催化降解反应符合一级动力学方程;吡啶中氮转化成氨氮.将TiO2负载在Al2O3上后利用率提高了6倍左右.
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| 关 键 词： | TiO2 Al2O3 光催化 吡啶 氨氮 |
Preparation of Al_2O_3/TiO_2 and Photocatalytic Degradation of Pyridine |
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| YU Li-hua,ZHONG Jun-bo,SHEN Yu,XU Suo-hong.Preparation of Al_2O_3/TiO_2 and Photocatalytic Degradation of Pyridine[J].Journal of Dalian Railway Institute,2004(1). |
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| Authors: | YU Li-hua ZHONG Jun-bo SHEN Yu XU Suo-hong |
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| Abstract: | In this paper, the preparation of TiO_2 photocatalyst coated on the aluminum oxide surface by sol-gel technique using tetrabutyl titanate as material was studied. In the suspension systems of aluminum oxide coated TiO_2, photocatalytic degradation of pyridine (PD) with medical violet lamp was studied. The photoactivity of the catalyst which coated on different aluminum oxide was studied.The results shows that the amount of catalyst is 10 mg/40 ml, the photocatalytic degradation reaction is a firstorder reaction, nitrogen in pyridine converts to ammonia nitrogen, and utilization ratio of the catalyst which coated on aluminum oxide is seven times of TiO_2 powers. |
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| Keywords: | TiO_2 aluminum oxide photocatalysis pyridine ammonia nitrogen |
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