What are the merits of using Methyl Orange rather than other Dyes in photocatalytic degradation?
One positive is that there is already a lot of work using this dye, so there is plenty of data for comparison.
There is also a lot of interest as methyl orange is considered one of the more difficult dyes to degrade and is quite toxic. This is essentially why there has been so much work done.
Methyl orange is pH sensitive. In acidic medium, it gives red colour and in basic medium, it gives yellow colour. It remains Orange in neutral condition. Where as other dyes are not so sensitive to pH change. This property may be useful to identify easily if the degradation of any substance is been done and the resultant products are either acidic, basic or neutral.
In summary, the ability of methyl orange to absorb visible light, facilitate electron transfer, and provide stable, cost-effective sensitization makes it the preferred choice in many photodegradation studies compared to other dyes that may lack these beneficial properties.
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