Removal of Zn (II) from aqueous solutions using NH4OH treated Annona muricata leaf powder / Nurul Atira Senik

Senik, Nurul Atira (2019) Removal of Zn (II) from aqueous solutions using NH4OH treated Annona muricata leaf powder / Nurul Atira Senik. [Student Project] (Unpublished)

Abstract

The potential of Annona muricata leaf powder as an adsorbent for the removal of
Zn(II) in the aqueous solution was investigated. The Annona muricata leaf powder
was characterized before and after the adsorption using a Fourier Infrared (FTIR)
spectrometer. The zero-point charge for the adsorbent surface was determined and
the result shows that the value of pHzpc was 7.01. The effect of pH, sorbent dosage,
initial concentration and contact time were investigated. The maximum uptake of
Zn(II) was at pH 6 with 19.15 mg/g. The adsorption equilibrium was established
after 20 minutes. The adsorption of Zn(II) by Annona muricata leaf powder
increased with its initial concentration. Pseudo-second-order showed the best fitting
with high correlation (R2 = 0.9722). It was found that the adsorption fits well with
the Langmuir isotherm equation. The maximum adsorption capacity for Langmuir
isotherm was 77.39 mg/g. AHAMLP can be used as an adsorbent for Zn(II) removal
from wastewater due to the fast removal and high adsorption capacity of Zn(II).

Metadata

Item Type:	Student Project
Creators:	Creators Email / ID Num. Senik, Nurul Atira UNSPECIFIED
Subjects:	Q Science > QD Chemistry > Physical and theoretical chemistry Q Science > QD Chemistry > Physical and theoretical chemistry > Chemical elements T Technology > TP Chemical technology > Adsorption
Divisions:	Universiti Teknologi MARA, Pahang > Jengka Campus > Faculty of Applied Sciences
Programme:	Bachelor of Science (Hons.) Chemistry
Keywords:	Annona muricata, Chemical elements, Adsorption
Date:	July 2019
URI:	https://ir.uitm.edu.my/id/eprint/45194