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Silica-Rice Husk as Adsorbent of Cr (VI) Ions Prepared through Sol-Gel Method

Walisongo Journal of Chemistry

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Field Value
 
Title Silica-Rice Husk as Adsorbent of Cr (VI) Ions Prepared through Sol-Gel Method
 
Creator Rodiah, Siti
Huljana, Mifta
Al Jabbar, Jauharuddin Luthfi
Ichsan, Chairul
Marzuki, Hasan
 
Subject Inorganic Chemistry
Chromium hexavalent ions; rice husk; sol-gel method; silica; textile home industrial wastewater
wastewater
 
Description One of the heavy metals contained in the textile industry wastewater is chromium (Cr). Chromium hexavalent ions (Cr6+) are highly toxic and its accumulation in the human body will cause various negative impacts. This study aimed to determine the characteristics of silica synthesized by the sol-gel method to gain homogeneity and high purity. Synthesized silica was calcined at 700°C for 4 hours and its performance to adsorb Cr(VI) ions  in textile wastewater was investigated. The presence of -OH group from silanol (–Si-OH) was appeared at wavenumber 3367.70 cm-1, meanwhile siloxane functional groups were recorded at 1056.99 cm-1 and 784.38 cm-1 due to the O-Si-O asymmetric stretching and Si-O bending vibration. Optimum conditions of silica to adsorb Cr(VI) ions took place at pH 2 and contact time of 90 minutes by adsorption efficiency of 75,65% and followed the Freundlich isotherm.
 
Publisher Department of Chemistry Faculty of Science and Technology Walisongo
 
Contributor —
 
Date 2021-07-09
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
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Format application/pdf
 
Identifier https://journal.walisongo.ac.id/index.php/wjc/article/view/8045
10.21580/wjc.v4i1.8045
 
Source Walisongo Journal of Chemistry; Vol 4, No 1 (2021): Walisongo Journal of Chemistry; 65-73
2621-5985
2549-385X
 
Language eng
 
Relation https://journal.walisongo.ac.id/index.php/wjc/article/view/8045/3415
 
Rights Copyright (c) 2021 Walisongo Journal of Chemistry
http://creativecommons.org/licenses/by-nc-sa/4.0