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Hindi Green Synthesized Cobalt Nanoparticles using Asparagus racemosus Root Extract & Evaluation of Antibacterial activity
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Copyright: © 2020 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The balance between economic development and environmental damage is also evident in the problem of pollution and waste management. Increased economic activity, mainly in industrial countries, has seen a rise in pollution generated from waste including sewage, trash, and litter. Particularly, the textile industry produces a significant amount of liquid effluent pollutants due to the vast amounts of water used in fabric processing. Dyes are a major class of synthetic organic compounds used in many industries (textile, pharmaceutical, rubber, etc.). Nearly 50,000 tons of dyes are discharged into the environment annually. This has resulted in significant water pollution worldwide. The reduction of these dye compounds from industrial wastewater has been achieved using chemical, physical, and biological methods. However, these approaches are time-consuming, costly, and pose disposal problems. Currently, photocatalytic degradation by nanoparticles is attracting significant attention. In photocatalytic degradation, the pollutants are degraded under UV-visible light irradiation in the presence of catalysts. Compared to the conventional methods, this technique is inexpensive and does not form any polycyclic products. In this review, we focus on different green-synthesized NPs such as Au, Ag, Pt, Pd, ZnO, CuO, α-Fe2O3, TiO2, CeO2, SnO2, and NiO together with and their applications in photocatalytic activities
