화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.7, 2073-2083, July, 2016
DOI10.1007/s11814-016-0048-z  Export Citation
Investigation of synergistic adsorption between methyl orange and Cd(II) from binary mixtures on magnesium hydroxide modified clinoptilolite
Weihua Zou†, Lie Liu1, †, Hongping Li, and Xiuli Han
  • School of Chemical Engineering and Energy, Zhengzhou University, 100# of Kexue Road, Zhengzhou 450001, P. R. China
  • 1College of Public Health, Zhengzhou University, 100, 100# of Kexue Road, Zhengzhou 450001, P. R. China
E-mail:,
The simultaneous removal of Methyl orange (MO) and Cd2+ (mainly from organo-metallic dyes) onto magnesium hydroxide modified clinoptilolite (MHMC) was described and compared to a single adsorbate situation. The adsorption performance was studied by batch experiments. The adsorption mechanism of MO and Cd2+ on MHMC was investigated. Langmuir and Dubinin-Raduskevich (D-R) isotherm successfully predicted the adsorption of MO and Cd2+ in single and binary systems. Maximum adsorption capacity calculated from Langmuir isotherm equation in single solution for MO and Cd2+ was 0.305 and 0.282mmol/g, respectively. In a binary system of MO/Cd2+, the adsorption capacity for both MO and Cd2+ was higher than in single solutions. The results indicated that the adsorption system of MO/Cd2+ presented a synergistic effect, not competitive adsorption, which suggested that MHMC can be used as an adsorbent for removal of dyes and heavy metal in the multi-solute system.
Keywords:Magnesium Hydroxide Modified Clinoptilolite (MHMC);Adsorption;Isotherms;Kinetics;Methyl Orange;Cd2+
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