Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 92, Issue -, Pages 11-19Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2016.06.094
Keywords
Oil palm fronds; Microcrystalline cellulose; Adsorbent
Funding
- Universiti Sains Malaysia through USM Research University Grant [1001/PKIMIA/854002]
- USM [304/PKIMIA/6313216]
- French National Research Agency through the Laboratory of Excellence ARBRE [ANR-12-LABXARBRE-01]
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The present study sheds light on the physical and chemical characteristics of microcrystalline cellulose (MCC) isolated from oil palm fronds (OPF) pulps. It was found that the OPF MCC was identified as cellulose II polymorph, with higher crystallinity index than OPF alpha-cellulose (CrIOPFMCC: 71%> CrIOPF alpha-cellulose 47%). This indicates that the acid hydrolysis allows the production of cellulose that is highly crystalline. BET surface area of OPF MCC was found to be higher than OPF alpha-cellulose (S-BETOPFMCC: 5.64 m(2) g(-1) > SBETOPF alpha-cellulose :Q(a)(0) 2.04 m(2) g(-1)), which corroborates their potential as an adsorbent. In batch adsorption studies, it was observed that the experimental data fit well with Langmuir adsorption isotherm in comparison to Freundlich isotherm. The monolayer adsorption capacity (Q(a)(0)) of OPF MCC was found to be around 51.811 mg g(-1) and the experimental data fitted well to pseudo-second-order kinetic model. (C) 2016 Elsevier B.V. All rights reserved.
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