An Insight into a Sustainable Removal of Bisphenol A from Aqueous Solution by Novel Palm Kernel Shell Magnetically Induced Biochar Synthesis Characterization
Loading...
Date
2021-10-31
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
Recently Bisphenol A (BPA) is one of the persistent trace hazardous estrogenic contaminants
in the environment, that can trigger a severe threat to humans and environment even at minuscule
concentrations. Thus, this work focused on the synthesis of neat and magnetic biochar (BC) as a
sustainable and inexpensive adsorbent to remove BPA from aqueous environment. Novel magnetic
biochar was efficiently synthesized by utilizing palm kernel shell, using ferric chloride and ferrous
chloride as magnetic medium via chemical co-precipitation technique. In this experimental study,
the influence of operating factors comprising contact time (20–240 min), pH (3.0–12.0), adsorbent
dose (0.2–0.8 g), and starting concentrations of BPA (8.0–150 ppm) were studied in removing BPA
during batch adsorption system using neat biochar and magnetic biochar. It was observed that the
magnetically loaded BC demonstrates superior maximum removal efficiency of BPA with 94.2%, over
the neat biochar. The functional groups (FTIR), Zeta potential, vibrating sample magnetometer (VSM),
surface and textural properties (BET), surface morphology, and mineral constituents (FESEM/EDX),
and chemical composition (XRD) of the adsorbents were examined. The experimental results demonstrated
that the sorption isotherm and kinetics were suitably described by pseudo-second-order
model and Freundlich model, respectively. By studying the adsorption mechanism, it was concluded
that - electron acceptor–donor interaction (EAD), hydrophobic interaction, and hydrogen bond
were the principal drives for the adsorption of BPA onto the neat BC and magnetic BC.
Description
NIL
Keywords
Citation
NIL