Journal of Environment and Biotechnology Research
Follow us
Share  this page
Visit Our Scientific Services
Increase the chance of
your manuscript to get
accepted in high quality
Scientific Services
includes Proof Reading,
Illustration Services and
Many others

New generation of magnetic microporus material for enhancing route for
methylene blue removal from waste water

Journal of Environment & Biotechnology Research, Vol. 6, No. 1, Pages 105-116, January 2017

M. Ruthiraan, E.C. Abdullah, N.M.Mubarak, K.R. Thines



A statistical analysis was carried out for adsorption of methylene blue onto nickel oxide impregnated magnetic
biochar to determine the optimised condition of methylene blue dye adsorption to attain greater equilibrium
adsorption capacity. The mangosteen peel derived magnetic biochar underwent pyrolysis process at zero oxygen
environments at 800 0C for 25 min duration. The Design of Experiment (DOE) of the batch adsorption of methylene
blue dye onto magnetic biochar was investigated by interacting agitation speed, contact time and adsorbate pH.
Design Expert software version 7.0 with Central Composite Design (CCD) method was employed to obtain a
minimum number of experiments with maximised operating parameters interactions. The adsorbent dosage and
adsorbate initial concentration were fixed at 0.3 g and 50 mg/L respectively, throughout the experimental study.
The optimised condition to attain highest removal percentage of 97% was recorded at pH above 7.0, agitation
speed of 125 rpm and 30 min contact time. The adsorption isotherm was evaluated using various adsorption
isotherm models namely Langmuir, Freundlich, Tempkin and Dubinin-Radushkevich isotherm models. Moreover, the
effect temperature on adsorption process was investigated through thermodynamics studies at various
temperatures. The magnetic biochar produced at optimum condition possesses total BET surface area of 819.7
m2/g and pore volume of 0.137 cm3/g.
Journal of Environment and Biotechnology Research
Volume 6, Number 1, 2017, pp. 105-116
Quick Links
Copyright © 2015 by VINANIE  ·  All Rights reserved  ·  E-Mail: [email protected]