Removal of Direct Yellow-12 Dye from Water by Adsorption on Activated Carbon Prepared from Ficus Racemosa L.

被引:7
作者
Revathi, G. [1 ]
Ramalingam, S. [2 ]
Subramaniam, P. [3 ]
Ganapathi, A. [4 ]
机构
[1] Sri Subramanya Coll Engn & Technol, Dept Chem, Palani 624615, India
[2] Vivekananda Coll, Dept Chem, Agasteeswaram 629701, India
[3] Aditanar Coll Arts & Sci, Dept Chem, Tiruchendur 628216, India
[4] Annamalai Univ, Dept Chem, Annamalainagar 608002, Tamil Nadu, India
关键词
Direct yellow-12 dye; Adsorption; Atti tree leaf powder carbon; Isotherms; pH effect; Desorption studies; LOW-COST ADSORBENTS; AQUEOUS-SOLUTION; TEXTILE EFFLUENT; METHYLENE-BLUE; WASTE-WATER; CONGO-RED; BIOSORPTION; IONS;
D O I
10.1155/2011/902421
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The adsorption of direct yellow-12 dye (DY-12) by Atti leaf (Ficus racemosa) powder carbon (ATC) was carried out by varying the parameters such as agitation time, dye concentration, adsorbent dose, pH and temperature. Equilibrium adsorption data followed both Langmuir and Freundlich isotherms. Adsorption followed second-order kinetics. The adsorption capacity was found to be 6.7 mg dye per gram of the adsorbent. Acidic pH was favorable for the adsorption of DY-12. Desorption studies suggest that chemisorptions might be the major mode of adsorption.
引用
收藏
页码:1536 / 1545
页数:10
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