Advances on ZnO Hetro-Structure as Nanoadsorbant for Heavy Metal Removals


Advances on ZnO Hetro-Structure as Nanoadsorbant for Heavy Metal Removals

Garima Rana, Pooja Dhiman, Anand Sharma

Industrialization is going at an incredibly fast rate, which is putting more and more heavy metals in the water we drink. Almost all heavy metals are very toxic, and even a small amount of these metals in water can be very bad for humans and for the aquatic ecosystems that live in the water. As a result, the removal of heavy metals from industrial effluents is a big deal. Due to their high surface area to volume ratio, nanoadsorbents have received substantial attention in the past decade for their ability to remove heavy metals from water. Due to its good biocompatibility, low toxicity, negative zeta potential, surface changes during development, and redox reactions resulting from the production of efficient photoinduced electron-hole pairs in ZnO nanoparticles, ZnO is a suitable material for heavy metal remediation. In this chapter, we have discussed the synthesis method of ZnO NPs and their nanocomposites. Also in this chapter, we’ll go over how ZnO nanostructures can be used to remove heavy metal ions from water. Various ZnO-based nanostorbents, including virgin ZnO NPs, doped ZnO nanostructures, ZnO nanocomposites, and surface-modified ZnO NPs, are fully examined, with statistical analyses of their maximum adsorption capacity for various heavy metal ions (Cd2+, Hg2+, Pb2+, Cr6+, and Cu2+).

ZnO, Heavy Metals Removal, Adsorption, Pollutants

Published online , 29 pages

Citation: Garima Rana, Pooja Dhiman, Anand Sharma, Advances on ZnO Hetro-Structure as Nanoadsorbant for Heavy Metal Removals, Materials Research Foundations, Vol. 146, pp 173-201, 2023


Part of the book on ZnO and Their Hybrid Nano-Structures

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