| 负载型TiO2光催化剂对几种有机物的降解实验研究 |
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| 引用本文： | 宋绵新,周天亮,边亮,孙良成.负载型TiO2光催化剂对几种有机物的降解实验研究[J].材料导报,2007,21(6):138-140,154. |
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| 作者姓名： | 宋绵新 周天亮 边亮 孙良成 |
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| 作者单位： | 西南科技大学材料科学与工程学院和先进建筑材料四川省重点实验室,绵阳,621010;西南科技大学材料科学与工程学院和先进建筑材料四川省重点实验室,绵阳,621010;包头稀土研究院,包头,014010;包头稀土研究院,包头,014010 |
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| 摘 要： | 以斜发沸石作为载体,用溶胶-凝胶法制备了TiO2/沸石光催化剂.利用IR、XRD 等手段对其进行了表征.以太阳光为光源,光解率为评价指标,对几种不同结构有机物的降解实验表明,TiO2/沸石光催化剂对有机物的降解有明显的选择性.光催化效果在反应初期主要依靠沸石的吸附作用,最终的光解率由有机物的分子量及所带电荷决定,有机物的浓度越大,光解率越低.
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| 关 键 词： | 二氧化钛 斜发沸石 光催化 |
Study on Several Organic Degradations by Immobilized TiO2 Photocatalyst |
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| SONG Mianxin,ZHOU Tianliang,BIAN Liang,SUN Liangcheng.Study on Several Organic Degradations by Immobilized TiO2 Photocatalyst[J].Materials Review,2007,21(6):138-140,154. |
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| Authors: | SONG Mianxin ZHOU Tianliang BIAN Liang SUN Liangcheng |
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| Affiliation: | South West University of Science and Technology, Key Laboratory for Advanced Building Materials of Sichuan, Mianyang 621010 2 Baotou Rare Earth Institute,Baotou 014010 |
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| Abstract: | By choosing clinoptilolite as immobilization of TiO2, TiO2/clinoptiolite photocatalyst is synthesized by sol-gel method. Photocatalyst is characterized with IR,XRD,etc. Using the sun as the light source to degrade orgainc and photodegration rate as appraisal target,degradation tests to differnent structural organics show that degradation of TiO2/clinoptilolite photocatalyst has obvious selectivity. The photocatalysis effect of initial stages of TiO2/clinoptilolite depends on the sorption of clinoptilolite. The final photodegration rate is determined by molecular weight and electric charge of organic. The higher concentration of solution is, the lower ohotodegration rate is. |
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| Keywords: | titanium dioxide clinoptilolite photocatalysis |
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