A review on adsorptive removal of dyes from wastewater by hydroxyapatite nanocomposites

Pai, Shraddha and Kini, Srinivas M and Selvaraj, Raja (2021) A review on adsorptive removal of dyes from wastewater by hydroxyapatite nanocomposites. Environmental Science and Pollution Research, 28. pp. 11835-11849. ISSN 0944-1344

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Dye removal from wastewater is of prominence due to its hostile effects on human health and the environment. The complex structure of the dye molecule is responsible for its difficulty in removal. Adsorption is found to be a promising technique to eliminate dye wastes due to its high removal capacity at low concentration. Among different adsorbents used, hydroxyapatite is a biocompatible adsorbent that is relatively efficient in both anionic and cationic dye removal. Recently, modification of hydroxyapatite by doping with other materials to increase its removal efficiency has gained much attention. This review summarizes compilation of recent literature on the removal of anionic and cationic dye by different hydroxyapatite nanocomposites, comparison of adsorption capacities of different hydroxyapatite nanocomposites, the possible adsorption mechanism of removal of dyes, the general isotherm, and kinetic and thermodynamic studies explaining the type of adsorption and the characteristics, advantages, and limitations of adsorbents

Item Type: Article
Uncontrolled Keywords: Adsorption . Dye . Hydroxyapatite nanocomposite . Isotherms . Kinetics . Thermodynamics
Subjects: Engineering > MIT Manipal > Chemical
Depositing User: MIT Library
Date Deposited: 17 May 2021 06:59
Last Modified: 17 May 2021 06:59
URI: http://eprints.manipal.edu/id/eprint/156669

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