Removal of Hexavalent Chromium by Using Sustainable Green Materials as Low-Cost Adsorbents

<div>Adsorption isotherms for Cr(VI) adsorption onto tea residues at 298 K: (a) Langmuir adsorption isotherm, Freundlich adsorption isotherm, and Temkin-Pyzhev adsorption isotherm and (b) Dubinin-Radushkevich adsorption isotherm.</div>

Adsorption Science & Technology

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Figure 9

Figure 9: Removal of Hexavalent Chromium by Using Sustainable Green Materials as Low-Cost Adsorbents 