Please use this identifier to cite or link to this item:
http://repository.ipb.ac.id/handle/123456789/59945
Title: | Kitosan Tertaut Silang Urea-Formaldehida dan Asam Sulfat Sebagai Penjerap Cibacron Red |
Authors: | Khotib, M. Sjahriza, Ahmad Rachmawati, Dian |
Keywords: | Bogor Agricultural University (IPB) Langmuir isotherm. crosslinker agent cibacron red chitosan |
Issue Date: | 2012 |
Abstract: | Modified chitosan cross-linked with urea-formaldehyde and sulfuric acid has been prepare through an establishment of cross-linker material of urea, formaldehyde, and sulfuric acid with the ratio 1:2:1. The ratio of chitosan:crosslinker material used were, 2:1, 1:1, and 1:2. This modification was done to increase the capacity and efficiency cibacron red adsorption. Increasing the addition of N levels, was in line with the addition of cross-linker agent. Based on the Fourier transform infrared spectroscopy, there was an absorption peak of C-OS group with wavenumber 896.33 cm-1, which shows the cross-link bonds between HOSO-3 and metilolurea, and at 1120-1130 cm-1 that indicates the ionic bonds between the chitosan side chains, +NH3-OSO3 -2. Best adsorption conditions for cibacron red was obtained for 120 minutes and 0.1 g adsorbent to adsorbent ratio of 1:1. Capacity modified chitosan and adsorption efficiency of the cibacron red have better value than unmodified chitosan. The adsoprtion isotherm model of chitosan cross-linked urea-formaldehyde and sulfuric acid toward cibacron red followed the Langmuir isotherm equation. |
URI: | http://repository.ipb.ac.id/handle/123456789/59945 |
Appears in Collections: | UT - Chemistry |
Files in This Item:
File | Size | Format | |
---|---|---|---|
G12dra1.pdf Restricted Access | 681.33 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.