Effect of LDHs and Other Clays on Polymer Composite in Adsorptive Removal of Contaminants: A Review
2020
Mohapi, Maleshoane | Sefadi, Jeremia, Shale | Mochane, Mokgaotsa, Jonas | Magagula, Sifiso, Innocent | Lebelo, Kgomotso
Article
Afficher plus [+] Moins [-]Recently, the development of a unique class of layered silicate nanomaterials has attracted considerable interest for treatment of wastewater. Clean water is an essential commodity for healthier life, agriculture and a safe environment at large. Layered double hydroxides (LDHs) and other clay hybrids are emerging as potential nanostructured adsorbents for water purification. These LDH hybrids are referred to as hydrotalcite-based materials or anionic clays and promising multifunctional two-dimensional (2D) nanomaterials. They are used in many applications including photocatalysis, energy storage, nanocomposites, adsorption, di usion and water purification. The adsorption and di usion capacities of various toxic contaminants heavy metal ions and dyes on di erent unmodified and modified LDH-samples are discussed comparatively with other types of nanoclays acting as adsorbents. This review focuses on the preparation methods, comparison of adsorption and di usion capacities of LDH-hybrids and other nanoclay materials for the treatment of various contaminants such as heavy metal ions and dyes.
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