茶叶纤维对Cu2+的吸附性能研究

doi:10.13305/j.cnki.jts.2010.04.004

Abstract

Abstract: The ability of tea fiber to absorb the Cu²⁺ was investigated. The results showed that the optimal pH value and temperature for the adsorption were about 4.55 and 30℃ respectively. When Cu²⁺ initial concentration was 200 mg/L, the adsorption capacity of tea fiber rose first and then decreased with the increase of its addition, and the adsorption capacity reached the maximum with its addition dose of 90 mg. The adsorption process of tea fiber for Cu²⁺ followed a pseudo-second order kinetic equation. The adsorption was more fitted to the Langmuir isotherm equation than the Freundlich isotherm equation. The maximum adsorption capacity was 16.78 mg/g.

Key words: tea fiber, adsorption, copper ion

CLC Number:

TS272
Q539

CUI Xiao-ning, HOU Wei-hua, YANG Xiao-ping, TAN Yang, CAI Jin-xin. Study on Adsorption Characteristic of Cu(Ⅱ) Ions by Tea Fiber[J]. Journal of Tea Science, 2010, 30(4): 259-262.

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Study on Adsorption Characteristic of Cu(Ⅱ) Ions by Tea Fiber

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