The Effect of NaOH-Na2CO3 Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal

Lui-Ruen Irene Teo; Voon Loong Wong; Siew Shee Lim

doi:10.1007/978-981-16-7920-9_55

The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal

Lui-Ruen Irene Teo, Voon Loong Wong, Siew Shee Lim

School of Engineering & Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The newly formed chitosan (CS) gel beads were primarily synthesized in a precipitation bath which contains 1 M NaOH and Na₂CO₃ at varied concentration (0.2, 0.4 and 0.6 M). The CS gel beads formed with 0.2 M Na₂CO₃ exhibited the highest porosity (ε%) (97.10%) and dye uptake% (64.34%) after 72 h. Besides, the porosity and adsorptive performance for CS gel beads with 0.4 M and 0.6 M Na₂CO₃ were lower as compared to the pure CS gel beads due to low interconnection density caused by the deeper pores. To counteract the destabilizing effect, glutaraldehyde (GA) solution was added to the CS gel beads for chemically crosslinking. As result, all the GA-CS beads demonstrated noteworthy dye uptake% up to 99.6% after 4.5 h with disregards of precipitation bath concentration. This study had proven on the stabilising effect provided by GA crosslinking on the outstanding methyl orange (MO) adsorptive performance.

Original language	English
Title of host publication	Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology
Editors	Norazian Mohamed Noor, Sung Ting Sam, Aeslina Abdul Kadir
Publisher	Springer
Pages	461-466
Number of pages	6
ISBN (Electronic)	9789811679209
ISBN (Print)	9789811679193
DOIs	https://doi.org/10.1007/978-981-16-7920-9_55
Publication status	Published - 1 Jan 2022

Publication series

Name	Lecture Notes in Civil Engineering
Volume	214
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Keywords

Adsorption
Azo dye
Batch mode
Chitosan
Porosity
Precipitation

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1007/978-981-16-7920-9_55

Cite this

Teo, L-R. I., Wong, V. L., & Lim, S. S. (2022). The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal. In N. M. Noor, S. T. Sam, & A. A. Kadir (Eds.), Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology (pp. 461-466). (Lecture Notes in Civil Engineering; Vol. 214). Springer. https://doi.org/10.1007/978-981-16-7920-9_55

Teo, Lui-Ruen Irene ; Wong, Voon Loong ; Lim, Siew Shee. / The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal. Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology. editor / Norazian Mohamed Noor ; Sung Ting Sam ; Aeslina Abdul Kadir. Springer, 2022. pp. 461-466 (Lecture Notes in Civil Engineering).

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abstract = "The newly formed chitosan (CS) gel beads were primarily synthesized in a precipitation bath which contains 1 M NaOH and Na2CO3 at varied concentration (0.2, 0.4 and 0.6 M). The CS gel beads formed with 0.2 M Na2CO3 exhibited the highest porosity (ε%) (97.10%) and dye uptake% (64.34%) after 72 h. Besides, the porosity and adsorptive performance for CS gel beads with 0.4 M and 0.6 M Na2CO3 were lower as compared to the pure CS gel beads due to low interconnection density caused by the deeper pores. To counteract the destabilizing effect, glutaraldehyde (GA) solution was added to the CS gel beads for chemically crosslinking. As result, all the GA-CS beads demonstrated noteworthy dye uptake% up to 99.6% after 4.5 h with disregards of precipitation bath concentration. This study had proven on the stabilising effect provided by GA crosslinking on the outstanding methyl orange (MO) adsorptive performance. ",

keywords = "Adsorption, Azo dye, Batch mode, Chitosan, Porosity, Precipitation",

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Teo, L-RI, Wong, VL & Lim, SS 2022, The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal. in NM Noor, ST Sam & AA Kadir (eds), Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology. Lecture Notes in Civil Engineering, vol. 214, Springer, pp. 461-466. https://doi.org/10.1007/978-981-16-7920-9_55

The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal. / Teo, Lui-Ruen Irene; Wong, Voon Loong; Lim, Siew Shee.

Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology. ed. / Norazian Mohamed Noor; Sung Ting Sam; Aeslina Abdul Kadir. Springer, 2022. p. 461-466 (Lecture Notes in Civil Engineering; Vol. 214).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Wong, Voon Loong

AU - Lim, Siew Shee

PY - 2022/1/1

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N2 - The newly formed chitosan (CS) gel beads were primarily synthesized in a precipitation bath which contains 1 M NaOH and Na2CO3 at varied concentration (0.2, 0.4 and 0.6 M). The CS gel beads formed with 0.2 M Na2CO3 exhibited the highest porosity (ε%) (97.10%) and dye uptake% (64.34%) after 72 h. Besides, the porosity and adsorptive performance for CS gel beads with 0.4 M and 0.6 M Na2CO3 were lower as compared to the pure CS gel beads due to low interconnection density caused by the deeper pores. To counteract the destabilizing effect, glutaraldehyde (GA) solution was added to the CS gel beads for chemically crosslinking. As result, all the GA-CS beads demonstrated noteworthy dye uptake% up to 99.6% after 4.5 h with disregards of precipitation bath concentration. This study had proven on the stabilising effect provided by GA crosslinking on the outstanding methyl orange (MO) adsorptive performance.

AB - The newly formed chitosan (CS) gel beads were primarily synthesized in a precipitation bath which contains 1 M NaOH and Na2CO3 at varied concentration (0.2, 0.4 and 0.6 M). The CS gel beads formed with 0.2 M Na2CO3 exhibited the highest porosity (ε%) (97.10%) and dye uptake% (64.34%) after 72 h. Besides, the porosity and adsorptive performance for CS gel beads with 0.4 M and 0.6 M Na2CO3 were lower as compared to the pure CS gel beads due to low interconnection density caused by the deeper pores. To counteract the destabilizing effect, glutaraldehyde (GA) solution was added to the CS gel beads for chemically crosslinking. As result, all the GA-CS beads demonstrated noteworthy dye uptake% up to 99.6% after 4.5 h with disregards of precipitation bath concentration. This study had proven on the stabilising effect provided by GA crosslinking on the outstanding methyl orange (MO) adsorptive performance.

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BT - Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology

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Teo L-RI, Wong VL, Lim SS. The Effect of NaOH-Na₂CO₃ Precipitation Bath Concentration on Adsorptive Performance of Crosslinked and Non-crosslinked Chitosan Beads for Azo Dye Removal. In Noor NM, Sam ST, Kadir AA, editors, Proceedings of the 3rd International Conference on Green Environmental Engineering and Technology. Springer. 2022. p. 461-466. (Lecture Notes in Civil Engineering). doi: 10.1007/978-981-16-7920-9_55