An overview to photo-catalytic degradation of dyes in waste water

Mohd Hanief Najar, Ishtiyaq Ahmed Najar

Article ID: 615
Vol 2, Issue 2, 2019, Article identifier:

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Abstract


Organic dyes used in textile and food industries are the important sources of environmental contaminations due to their non-bio degradability and high toxicity to aquatic creatures and carcinogenic effects on humans. This demands environmental remediation by the use of techniques which are environmentally benign. For this purpose, a general overview of dye degradation by light in the presence of materials as photo-catalysts has been given. The mechanism of action has also been described. Importantly, the materials involved in dye degradation usually involve nano-composites of either conducting polymers or metal-oxidesor graphene based systems which are insoluble in aqueous solutions, hence will be environmentally benign and can therefore be recovered after use.


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DOI: http://dx.doi.org/10.24294/ace.v1i4.615

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