콘텐츠 본문
논문 해외 국제전문학술지(SCI급) ADSORPTION OF A CATIONIC DYE, METHYLENE BLUE, ON TO CHITOSAN HYDROGEL BEADS GENERATED BY ANIONIC SURFACTANT GELATION
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2011
- 저자명 우승한
- 학술지명 ENVIRONMENTAL TECHNOLOGY
- 발행처명 TAYLOR FRANCIS LTD
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
Chitosan hydrogel beads (CSB) formed by sodium dodecyl sulphate (SDS) gelation were used for the removal of a cationic dye, methylene blue (MB), from aqueous solutions. The adsorption capacity of chitosan be ads (CB) formed by alkali gelation was low because of charge repulsions between the chitosan (CS) and the MB. The adsorption capacity of CS B (4 g/L SDS gelation) for MB (100 mg/L) was 129.44 mg/g, and it decreas ed significantly with increasing SDS concentration during gelation. Th is decrease was a result of increased density of the CSB membrane materials. The CSB membrane materials formed with the 4 g/L SD S gelation showed the highest volumetric adsorption capacity. Th e MB adsorption on to CB and CSB increased with increasing values f or the initial pH of solution. Data from both CB and CSB showed good fit to Sips isotherm models, and the maximum adsorption capacity of CSB (226.24 mg/g) was higher than that of CB (99.01 mg/g).
