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Nanosorbents in purification of wastewater and remediation of contaminated soil: A review
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Researchers reviewed the use of nanosorbents for removing contaminants from wastewater and polluted soils, finding that engineered nanoparticles offer high surface area and strong adsorption properties that make them effective candidates for environmental remediation of heavy metals and organic pollutants.
Nanosorbents in purification of wastewater and remediation of contaminated soil: A review. / Ch. Ch. Aguomba, R. U. Duru, Ch. Obi, I. P. Okoye. / Nano Studies. – 2021–2022. – # 21/22. – pp. 293-308. – Eng. Nanoparticles have become increasingly relevant in science and industry. This is understandable due to its varied applications from sports to medicine to cosmetics and even the military. This review focuses on the removal of heavy metal ions from contaminated soil and wastewater using nanosorbents. Well-established physical and chemical methods were examined but the focus was on green synthesis. Contaminated soil remediation and wastewater purification using nanosorbents follow the bottom up synthetic approach. Green synthesis is more advantageous than chemical approaches due to its cheapness and being environmentally friendly. Green synthesis also avoids hazardous and toxic methods of nanoparticle synthesis. It also provides a use for otherwise harmful and invasive plant materials. The importance of nanoparticles to biofuels, cosmetics and drugs and medicine was also evaluated. Challenges to more adoption of nanoparticles were also highlighted. Fig. 13, Tab. 1, Ref. 42.
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