Phosphoric Acid and Cashew Bark Extract Activated Carbons derived from Coconut (Cocos nucifera) Shells for Cr (VI) Adsorption

نویسندگان

چکیده

THIS study was conducted to activate and characterize carbons prepared from coconut shells for subsequent adsorption of Cr (VI) synthetic wastewater. The process carried out through batch studies. results showed that the pH, contact time temperature dependent. optimum pH 2 both cashew bark extract activated (CNAC1) H3PO4 (CNAC2) carbons. Characterization using Fourier Transform-Infrared Spectroscopy (FTIR) revealed OH C=O were some prominent functional groups involved in (VI). EDX analysis confirmed on surfaces (ACs). Furthermore, SEM characterization free ACs coarser more porous than their (VI loaded counter-parts while elemental composition samples carbonaceous. feasible followed pseudo-first-order kinetic model. Generally, efficiency CNAC2 higher CNAC1. However, could be used as an activating agent preparation carbon because it is cheaper eco-friendlier H3PO4.

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ژورنال

عنوان ژورنال: Egyptian Journal of Chemistry

سال: 2021

ISSN: ['0449-2285', '2357-0245']

DOI: https://doi.org/10.21608/ejchem.2021.47465.2980