화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.60, 307-320, April, 2018
DOI10.1016/j.jiec.2017.11.017  Export Citation
Carbon sphere: Synthesis, characterization and elimination of toxic Cr (VI) ions from aquatic system
P. Senthil Kumar†, R. Sivaranjanee1, P. Sundar Rajan, and A. Saravanan2
  • Department of Chemical Engineering, SSN College of Engineering, Chennai 603110, India
  • 1Department of Chemical Engineering, St. Joseph’s College of Engineering, Chennai 600119, India
  • 2Department of Biotechnology, Vel Tech High Tech Dr Rangarajan Dr Sakunthala Engineering College, Chennai 600062, India
E-mail:
Carbon sphere has been newly prepared for the ejection of Cr(VI) ions. SEM-EDX, XRD and FTIR reports affirmed its quality. Trial and error analysis has been embraced to advance the system conditions. Langmuir maximum adsorption capacity (117.2 mg/g) was achieved at a pH of 2, adsorbent dosage of 4 g/ L, contact time of 60 min and temperature of 30 °C for an initial Cr(VI) ion concentration of 50-500 mg/L. Adsorption process was controlled by surface diffusion. Pseudo-second order model was the best obeyed model. An exothermic and unconstrained sorption process was observed. Sticking probability explained that adsorption was favoured at low temperature.
Keywords:Adsorption;Carbon sphere;Isotherm;Kinetics;Selectivity
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