Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions
Hydrogel beads based on the husk of agarwood fruit (HAF)/sodium alginate (SA), and based on the HAF/chitosan (CS) were developed for the removal of the dyes, crystal violet (CV) and reactive blue 4 (RB4), in aqueous solutions, respectively. The effects of the initial pH (2–10) of the dye solution, t...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-03-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/26/5/1437 |
| _version_ | 1797412831942934528 |
|---|---|
| author | Chih Ming Ma Bo-Yuan Yang Gui-Bing Hong |
| author_facet | Chih Ming Ma Bo-Yuan Yang Gui-Bing Hong |
| author_sort | Chih Ming Ma |
| collection | DOAJ |
| description | Hydrogel beads based on the husk of agarwood fruit (HAF)/sodium alginate (SA), and based on the HAF/chitosan (CS) were developed for the removal of the dyes, crystal violet (CV) and reactive blue 4 (RB4), in aqueous solutions, respectively. The effects of the initial pH (2–10) of the dye solution, the adsorbent dosage (0.5–3.5 g/L), and contact time (0–540 min) were investigated in a batch system. The dynamic adsorption behavior of CV and RB4 can be represented well by the pseudo-second-order model and pseudo-first-order model, respectively. In addition, the adsorption isotherm data can be explained by the Langmuir isotherm model. Both hydrogel beads have acceptable adsorption selectivity and reusability for the study of selective adsorption and regeneration. Based on the effectiveness, selectivity, and reusability of these hydrogel beads, they can be treated as potential adsorbents for the removal of dyes in aqueous solutions. |
| first_indexed | 2024-03-09T05:08:54Z |
| format | Article |
| id | doaj.art-3d7a9401e4604d068122eb72bd4eb11e |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T05:08:54Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-3d7a9401e4604d068122eb72bd4eb11e2023-12-03T12:51:56ZengMDPI AGMolecules1420-30492021-03-01265143710.3390/molecules26051437Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous SolutionsChih Ming Ma0Bo-Yuan Yang1Gui-Bing Hong2Department of Cosmetic Application and Management, St. Mary’s Junior College of Medicine, Nursing and Management, Yilan 266, TaiwanDepartment of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, TaiwanDepartment of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, TaiwanHydrogel beads based on the husk of agarwood fruit (HAF)/sodium alginate (SA), and based on the HAF/chitosan (CS) were developed for the removal of the dyes, crystal violet (CV) and reactive blue 4 (RB4), in aqueous solutions, respectively. The effects of the initial pH (2–10) of the dye solution, the adsorbent dosage (0.5–3.5 g/L), and contact time (0–540 min) were investigated in a batch system. The dynamic adsorption behavior of CV and RB4 can be represented well by the pseudo-second-order model and pseudo-first-order model, respectively. In addition, the adsorption isotherm data can be explained by the Langmuir isotherm model. Both hydrogel beads have acceptable adsorption selectivity and reusability for the study of selective adsorption and regeneration. Based on the effectiveness, selectivity, and reusability of these hydrogel beads, they can be treated as potential adsorbents for the removal of dyes in aqueous solutions.https://www.mdpi.com/1420-3049/26/5/1437agarwoodhydrogeladsorptionreactive blue 4crystal violet |
| spellingShingle | Chih Ming Ma Bo-Yuan Yang Gui-Bing Hong Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions Molecules agarwood hydrogel adsorption reactive blue 4 crystal violet |
| title | Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions |
| title_full | Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions |
| title_fullStr | Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions |
| title_full_unstemmed | Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions |
| title_short | Husk of Agarwood Fruit-Based Hydrogel Beads for Adsorption of Cationic and Anionic Dyes in Aqueous Solutions |
| title_sort | husk of agarwood fruit based hydrogel beads for adsorption of cationic and anionic dyes in aqueous solutions |
| topic | agarwood hydrogel adsorption reactive blue 4 crystal violet |
| url | https://www.mdpi.com/1420-3049/26/5/1437 |
| work_keys_str_mv | AT chihmingma huskofagarwoodfruitbasedhydrogelbeadsforadsorptionofcationicandanionicdyesinaqueoussolutions AT boyuanyang huskofagarwoodfruitbasedhydrogelbeadsforadsorptionofcationicandanionicdyesinaqueoussolutions AT guibinghong huskofagarwoodfruitbasedhydrogelbeadsforadsorptionofcationicandanionicdyesinaqueoussolutions |