Journal of Engineering Science and Technology
6
th
EURECA 2016 Special Issue May (2017) 58 - 70
© School of Engineering, Taylor’s University
58
CREATININE ADSORPTION BY ACTIVATED CARBON FIBRE
(ACF) DERIVED FROM EMPTY FRUIT BUNCH (EFB) FIBRE
IVAN V. K. CHAI
1
, X. Y. LIM
2
, T. LEE
1,
*
1
School of Engineering, Taylor’s University, Taylor's Lakeside Campus,
No. 1 Jalan Taylor's, 47500, Subang Jaya, Selangor DE, Malaysia
2
School of Engineering and Physical Sciences, Heriot-Watt University Dubai Campus,
Dubai International Academic City, P.O. Box 294345, Dubai, United Arab Emirates
*Corresponding Author: appleeting38@hotmail.com
Abstract
Adsorption is an important process in the haemodialysis treatment to treat
patients with kidney failure. Adsorption membranes in haemodialysis systems
are usually made of synthetic polymers but these membranes do not have high
efficiency in removing uremic toxins such as urea, uric acid and creatinine.
Thus, it is suggested to replace the current membranes with a new material that
has high adsorption capability as well as being lightweight and low cost. This
study suggests that activated carbon may be a potential replacement of current
haemodialysis membranes. Activated carbon fibre is chosen due to their better
adsorptive characteristics compared to granular and powder activated carbon.
Empty fruit bunch fibre is chosen to produce activate carbon fibre because it is
easily available in abundance throughout the year and has low commercial
value. There is not much information available on creatinine adsorption using
activated carbon fibre derived from empty fruit bunch fibre. Cleaned empty
fruit bunch fibre is impregnated with 4 different chemicals to produce activated
carbon fibre. The effects of these chemical treatments on the pore
characteristics and physiochemical properties are studied. Activated carbon
fibre samples are produced via pre-carbonisation chemical treatment followed
up by carbonisation at 400 °C and activation at 900 °C. Samples exhibited Type
I isotherm which indicates the presence of micro and mesoporous structure. The
sample treated with phosphoric acid has the highest BET surface area of 1493
m
2
/g and pore volume of 0.782 cm
3
/g compared to other samples. Carbon burn-
off of activated carbon fibre sample treated with phosphoric acid proved to be
86% which is the highest among all samples despite having the best adsorbing
capability. This work has shown that activated carbon fibre treated with
phosphoric acid has the potential in replacing the current membrane used in the
current haemodialysis system with creatinine removal of 70% and urea removal
of 68% which is higher than the conventional haemodialysis membrane.
Keywords: Creatinine, Adsorption, Activated carbon fibre, Empty fruit bunch fibre.