Utilization of Bivalve Shell-Treated Zea mays L. (maize) Husk Leaf as a Low-Cost Biosorbent for Enhanced Adsorption of Malachite Green

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A. A., Jalil and S., Triwahyono and M. R., Yaakob and Z. Z. A., Azmi and N., Sapawe and N. H. N., Kamarudin and Setiabudi, H. D. and N. F., Jaafar and S. M., Sidik and S. H., Adam and B. H., Hameed (2012) Utilization of Bivalve Shell-Treated Zea mays L. (maize) Husk Leaf as a Low-Cost Biosorbent for Enhanced Adsorption of Malachite Green. Bioresource Technology, 120 . pp. 218-224. ISSN 0960-8524

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Official URL: http://dx.doi.org/10.1016/j.biortech.2012.06.066

Abstract

In this work, two low-cost wastes, bivalve shell (BS) and Zea mays L. husk leaf (ZHL), were investigated to adsorb malachite green (MG) from aqueous solutions. The ZHL was treated with calcined BS to give the BS-ZHL, and its ability to adsorb MG was compared with untreated ZHL, calcined BS and Ca(OH)2-treated ZHL under several different conditions: pH (2–8), adsorbent dosage (0.25–2.5 g L1), contact time (10–30 min), initial MG concentration (10–200 mg L1) and temperature (303–323 K). The equilibrium studies indicated that the experimental data were in agreement with the Langmuir isotherm model. The use of 2.5 g L1 BS-ZHL resulted in the nearly complete removal of 200 mg L1 of MG with a maximum adsorption capacity of 81.5 mg g1 after 30 min of contact time at pH 6 and 323 K. The results indicated that the BS-ZHL can be used to effectively remove MG from aqueous media.

Item Type:Article
Uncontrolled Keywords:Low-cost adsorbent; Bivalve shell; Zea mays L.; Malachite green; Isotherm
Subjects:Q Science > QD Chemistry
Divisions:Faculty of Chemical & Natural Resources Engineering
ID Code:6792
Deposited By: Ms. Hazima Anuar
Deposited On:15 Apr 2016 10:53
Last Modified:21 Jul 2016 09:45

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