Abstract
Background: Nano-photocatalysis through semiconductor-based materials has become an emerging and eye-catching approach for detoxification of hazardous heavy metals in the aqueous environment. Methods: In this article, photocatalysis, being a green technique along with several other detoxification technologies for toxic heavy metals, has been reviewed. : Furthermore, the adverse effects of heavy metals on human health, agricultural lands, environment, and aquatic systems were investigated. Toxic heavy-metals contribute to numerous environmental issues based on their toxicity. Result: Various types of photocatalysts have been discussed in recent literature for the detoxification of heavy metals. The recycling of photocatalysts may be anticipated as a worthy method for wastewater treatment which is also discussed with recent examples. Conclusion: Moreover, it concludes with efficiency, challenges and new future perspectives for heavy metal detoxification using photocatalysis.
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