Water quality is crucial for human health, economic development and sustainable ecological processes. Due to greater constraints, conventional water treatment technologies do not meet high expectations, so the development of alternative technologies is important for a sustainable future. By integrating the beneficial properties of both nanomaterials and polymers, polymer nanocomposites have attracted enormous attention in this field due to their unique properties such as high surface-to-volume ratio, mechanical strength, film-forming ability, thermal stability, chemical resistance and low production costs. Polymer nanocomposites are used as catalysts and adsorbents in the removal of pollutants from polluted waters. They are effective in removing heavy metal ions, dyes, oils and fats, microorganisms, etc.
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