Chemistry Department, Faculty of Mathematics and Science, Universitas Padjadjaran, Indonesia
BibTex Citation Data :
@article{JKSA24829, author = {Yati Yuliyati and Solihudin Solihudin and Atiek Noviyanti}, title = {Effect of Sodium Periodate on the Adsorption Capacity of Silica-Lignin from Rice Husk on Chromium(VI)}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {22}, number = {6}, year = {2019}, keywords = {Adsorption; Chromium(VI); Halsey equation; Rice husk; Silica-lignin activation.}, abstract = { Reactive groups such as silanol, hydroxyl, and carbonyl groups in silica-lignin composites play a role in binding to chromium(VI) ions. The activation of functional groups in silica-lignin can be increased by the addition of an activator such as sodium periodate, which can also oxidize the lignin monomer (guaiasil) to ortho-quinone. This study aimed to obtain silica-lignin composites from rice husks activated by sodium periodate with a high surface area. Composite absorption was tested on chromium(VI) adsorption. Silica-lignin isolation was carried out by using the sol-gel method at concentrations of sodium hydroxide 5, 10, 15, and 20% (b/b). Silica-lignin activated with sodium periodate 10% (b/b) had the smallest particle size of about 8 μm , with a surface area of 14.0888 m 2 .g -1 and followed Halsey isotherm adsorption model, with an adsorption capacity of 0.3054 mg.g -1 . }, issn = {2597-9914}, pages = {242--249} doi = {10.14710/jksa.22.6.242-249}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/24829} }
Refworks Citation Data :
Reactive groups such as silanol, hydroxyl, and carbonyl groups in silica-lignin composites play a role in binding to chromium(VI) ions. The activation of functional groups in silica-lignin can be increased by the addition of an activator such as sodium periodate, which can also oxidize the lignin monomer (guaiasil) to ortho-quinone. This study aimed to obtain silica-lignin composites from rice husks activated by sodium periodate with a high surface area. Composite absorption was tested on chromium(VI) adsorption. Silica-lignin isolation was carried out by using the sol-gel method at concentrations of sodium hydroxide 5, 10, 15, and 20% (b/b). Silica-lignin activated with sodium periodate 10% (b/b) had the smallest particle size of about 8μm, with a surface area of 14.0888 m2.g-1 and followed Halsey isotherm adsorption model, with an adsorption capacity of 0.3054 mg.g-1.
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