Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide
Joint Authors
Sirisathitkul, Chitnarong
Pholnak, Pachara
Sittiyothee, Sakuna
Sirisathitkul, Yaowarat
Source
Arab Journal of Basic and Applied Sciences
Issue
Vol. 29, Issue 1 (31 Jan. 2022), pp.53-64, 12 p.
Publisher
University of Bahrain College of Science
Publication Date
2022-01-31
Country of Publication
Bahrain
No. of Pages
12
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Abstract EN
Alginate beads incorporating zinc oxide (ZnO) nanoparticles were shown as an alternative to treat water contaminated with sedge dye by combining photocatalytic activity with adsorption.
Dry and fresh alginate beads were prepared by changing ZnO contents in the range of 0.5, 1, and 2% (w/w) and then characterized for their morphology as well as dye removal.
The dye removal efficiency was increased by increasing the active surface area of the alginate beads and ZnO photocatalytic activity.
Under ultraviolet irradiation for 24 h, the dye removal efficiency reached 64% in the case of 2% ZnO loading.
The use of alginate beads dried at 80 C before ZnO loading increased the maximum value to 78%.
With more than 20% removal during the first 2 h through the adsorption and diffusion, the dye removal of alginate beads incorporating 1 and 2% ZnO was modeled as a function of time according to the Weber-Morris intra-particle diffusion equation.
The dye adsorption per mass of the adsorbent having 0 and 0.5% ZnO loading fitted the Elovich equation better.
American Psychological Association (APA)
Pholnak, Pachara& Sittiyothee, Sakuna& Sirisathitkul, Chitnarong& Sirisathitkul, Yaowarat. 2022. Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide. Arab Journal of Basic and Applied Sciences،Vol. 29, no. 1, pp.53-64.
https://search.emarefa.net/detail/BIM-1340814
Modern Language Association (MLA)
Pholnak, Pachara…[et al.]. Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide. Arab Journal of Basic and Applied Sciences Vol. 29, no. 1 (2022), pp.53-64.
https://search.emarefa.net/detail/BIM-1340814
American Medical Association (AMA)
Pholnak, Pachara& Sittiyothee, Sakuna& Sirisathitkul, Chitnarong& Sirisathitkul, Yaowarat. Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide. Arab Journal of Basic and Applied Sciences. 2022. Vol. 29, no. 1, pp.53-64.
https://search.emarefa.net/detail/BIM-1340814
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 61-64
Record ID
BIM-1340814