콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Removal of cadmium using acid-treated activated carbon in the presence of nonionic and/or anionic surfactants
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2009-11
- 저자명 우승한
- 학술지명 HYDROMETALLURGY
- 발행처명 ELSEVIER SCIENCE BV
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
논문 초록 (Abstract)
The adsorption of cadmium ions on granular activated carbon treated with nitric acid (NGAC), and untreated regular granulatedactivated carbon (RGAC) is reported in the absence and presence of mixtures o f anionic (sodium dodecyl sulfate, SDS) andnonionic (Triton X-100, TX100) surfactants. In the absence of surfactants, NGAC adsorbed 8.7 times more Cd (0.165 mmol/g) than did RGAC (0.019 mmol/g). In RG AC suspensions, the amount of Cd sorbed increased significantly wit h increasing dose of SDS, to a maximum of 0.112 mmol/g. This incre ase was due to increased binding of Cd with sorbed SDS. However, in NGAC suspension, the amount of Cd sorbed was not increased further by the addition of SDS. It suggested that addition of SDS blocked the availability of surface functional groups in the microporous s tructure of NGAC. (C) 2009 Elsevier B.V. Allrights reserved.
