Publication: Adsorption of Ag (I) from Aqueous Solutions Using Regenerated Silk Fibroin Adsorbent Beads
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
15440478
Rights Holder(s)
Scopus
Bibliographic Citation
Kasetsart Journal of Social Sciences. Vol 43, No.1 (2022), p.223-230
Suggested Citation
Nitayaphat W., Jintakosol T. Adsorption of Ag (I) from Aqueous Solutions Using Regenerated Silk Fibroin Adsorbent Beads. Kasetsart Journal of Social Sciences. Vol 43, No.1 (2022), p.223-230. doi:10.1080/15440478.2020.1848697 Retrieved from: https://hdl.handle.net/20.500.14740/9336
Author(s)
Abstract
In this work, a novel and eco-friendly biosorbent, regenerated silk fibroin bead (rSFB) was successfully produced and used as a low-cost adsorbent to remove silver ion from wastewater. Batch adsorption experiments demonstrated that rSFB could effectively remove silver ion in particular. Factors influencing the adsorption of silver ion, e.g. contact time, solution pH, and adsorbent dosage were systematically investigated. Isotherm equilibrium studies demonstrated that the silver ion adsorption process followed the Langmuir model. The maximum adsorption capacity for silver ion was estimated to be 62.50 mg/g and the removal efficiency could reach up to 98.82%. The kinetics study showed that the adsorption process followed the second-order kinetic model. The adsorbent was stable and active for up to four successive cycles. The batch experimental results suggested that rSFB could be used as an efficient adsorbent to remove silver from wastewater. © 2020 Taylor & Francis.