Starch Biocryogel for Removal of Methylene Blue by Batch Adsorption

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dc.contributor.authorTarawee Taweekarn
dc.contributor.authorWorawit Wongniramaikul
dc.contributor.authorChanita Boonkanon
dc.contributor.authorChonthicha Phanrit
dc.contributor.authorWilasinee Sriprom
dc.contributor.authorWadcharawadee Limsakul
dc.contributor.authorWanchitra Towanlong
dc.contributor.authorChanadda Phawachalotorn
dc.contributor.authorAree Choodum
dc.date.accessioned2025-07-21T06:08:13Z
dc.date.issued2022-12-18
dc.description.abstractA green monolithic starch cryogel was prepared and applied for the removal of methylene blue (MB) using a batch system. The influence of various experimental parameters on MB adsorption was investigated. High removal efficiency (81.58 ± 0.59%) and adsorption capacity (34.84 mg g−1) were achieved. The Langmuir model better fitted the experimental data (determination coefficient (R2) = 0.9838) than the Freundlich one (R2 = 0.8542), while the kinetics of MB adsorption on the cryogel followed a pseudo-second-order model. The adsorption process was spontaneous and endothermic with an activation energy of 37.8 kJ mol−1 that indicated physical adsorption. The starch cryogel was used for MB removal from a wastewater sample collected from a local Batik production community enterprise in Phuket, Thailand, and a removal efficiency of 75.6% was achieved, indicating that it has a high potential as a green adsorbent for MB removal.
dc.identifier.doi10.3390/polym14245543
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/11927
dc.subjectEndothermic process
dc.subjectMethylene blue
dc.subjectLangmuir adsorption model
dc.subject.classificationAdsorption and biosorption for pollutant removal
dc.titleStarch Biocryogel for Removal of Methylene Blue by Batch Adsorption
dc.typeArticle

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