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Effective removal of Pb(II) by low-cost fibrous silica KCC-1 synthesized from silica-rich rice husk ash

Rosalyza, Hasan and Chi, Cheng Chong and S. N., Bukhari and Rohayu, Jusoh and Setiabudi, H. D. (2019) Effective removal of Pb(II) by low-cost fibrous silica KCC-1 synthesized from silica-rich rice husk ash. Journal of Industrial and Engineering Chemistry, 75. pp. 262-270. ISSN 1226-086X

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Abstract

Rice husk ash was utilized as a low-cost silica precursor in preparing KCC-1(RHA) for Pb(II) removal. The characterization results revealed the comparable properties of KCC-1(RHA) with the conventional KCC-1. The optimum adsorption conditions were achieved at initial concentration of 322.06 mg/L, adsorbent dosage of 2.4 g/L, and time of 117 min, with Pb(II) removal of 75%. The experimental results followed the pseudo-second-order kinetic model (R2 ≥ 0.9950) and Langmuir isotherm model (R2 = 0.9934). The KCC-1(RHA) showed good performance during five cycles of adsorption-desorption, thus, affirmed great potential of RHA as silica precursor in synthesizing KCC-1(RHA) for excellent Pb(II) removal.

Item Type: Article
Uncontrolled Keywords: KCC-1; Rice husk ash; Pb(II); Adsorption; Optimization
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Noorul Farina Arifin
Date Deposited: 02 May 2019 07:01
Last Modified: 02 May 2019 07:01
URI: http://umpir.ump.edu.my/id/eprint/24863
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