Preparation And Characterization Of Photocatalytic Composites Based On Polyaniline

The treatment of the nocuous organic pollution in water is vital to environmental protection. Comparing with the conventional physical and biological treatments, the photocatalysis has provided a new and practically industrial approach to disposal of organic waste water depending on its wide applicability and complete of degradation to toxic organic matter.Two kinds of nanocatalysts which had synthesized in chemical methods were selected in this study to degrade methyl orange for testing and characterization. But because of existence this shortcomings such as poor resistance to environmental so resist its application greatly. This experiment though a lot of theory argument and practice then using the PANI which was low-cot for surface modification the nanocatalysts. The photocatalytic activity of as-prepared cats was measured by decolorizing methy orange in aqueous solution under UV light irradiation. And then the photocatalysts had completely degraded methyl orange solution in 60 minute. It is evidence that composite photocatalyst is more efficient than pure photocatlyst. Comparing with the pure photocatalyst, the composite photocatalyst is stable existence in acid solution and it can be degrade the methyl orange under UV light irradiation. Through repeated to degrade methyl orange to observe and research the reactivity and reuse rate. Detailed analysis of the composite photocatalyst degradation kinetics can be calculated the composite photocatalytic degradation of methy orange is the first-order reation kinetics.The paper can be seen to use the PANI to modified the pure photocatalyst surface is acheieved the expected results and also proved this vision is a successful attempt.