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bce ›› 2014, Vol. 48 ›› Issue (1): 23-27.doi: 10.3969/j.issn.1673-5854.2014.01.005

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Adsorption of Creatinine on Activated Carbon Prepared from Coconut Shell by Steam

WANG Jin-biao1, JIANG Jian-chun1,2, SUN Kang1,2, XIE Xin-ping1, LU Xin-cheng1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Institute of New Technology of Forestry, CAF, Beijing 100091, China
  • Received:2013-09-05 Online:2014-01-30 Published:2014-02-11

Abstract: Activated carbons were prepared from coconut shell by steam activation at different activation temperatures. The effects of adsorption time, initial concentration of solution, pH value and reaction temperature on the adsorption behavior of creatinine on coconut-shell activated carbon which was activated at 850 ℃ was studied. The results showed that activated carbon with high microporosity is an excellent adsorbent for creatinine. The adsorption equilibrium was reached in 7 h and its equilibrium adsorption capacity was 76.4 mg/g. The adsorption ability increased with the increase of temperature while temperature ranged between 30 ℃ and 70 ℃. The adsorption capacity of CAC for creatinine on the acid conclition was better than that on the basic condition. When pH value is 2, the maximum adsorption capacity was found to be 123.55 mg/g.

Key words: activated carbon, creatinine, adsorption

CLC Number: