一些因素对二氧化钛催化乙酸在水溶液中的光降解的影响

Didier Robert, Franck Rohr, Jean-Victor Weber
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引用次数: 2

摘要

研究了TiO2水悬浮液中醋酸的光催化降解。研究了[TiO2]、[CH3COOH]和辐照时间对乙酸消失速率的影响。我们已经指出醋酸的消失遵循Langmuir-Hinshelwood模型。最后我们观察了粒度法的作用和催化剂的晶体结构,表明降解是在TiO2表面进行的。
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Influence de quelques facteurs sur la photodégradation catalytique de l'acide acétique en solution aqueuse par le TiO2

The photocatalytic degradation of acetic acid in an aqueous suspension of TiO2 has been studied. The influence of [TiO2], [CH3COOH] and irradiation time on the rate of disappearance of acetic acid has been demonstrated. We have brought to the fore that the disappearance of acetic acid follows the Langmuir-Hinshelwood model. Finally we have observed the effect of granulometry and the crystalline structure of the catalyst that shows that the degradation is made at the TiO2 surface.

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