Potential biosorbent based on sugarcane bagasse modified with tetraethylenepentamine for removal of eosin Y.
Tetraethylenepentamine (TEPA) modified sugarcane bagasse (SB), a novel biosorbent (TEPA-MSB), was proved to be an effective adsorbent for anionic dyes due to the introduced functional amino groups. FTIR, TG and DSC analysis were employed to characterize the sorbent. The effects of pH, temperature, contact time and initial concentration of dye on the adsorption of eosin Y were investigated. The experimental data fit very well to the Langmuir model, giving a maximum sorption capacity of 399.04 mg/g at 25 °C. And the kinetic data were well described by the pseudo-second-order kinetic model. pH 6 was the optimal pH for eosin Y adsorption, and the maximum adsorption capacity of TEPA-MSB calculated by Langmuir model was 18 times higher than that of SB.
Department of Pharmaceutical Engineering, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China. jgb3h@163.com
Gang-Biao
GB
Jiang
Zuan-Tao
ZT
Lin
Xiao-Yi
XY
Huang
Yu-Qiang
YQ
Zheng
Cui-Cui
CC
Ren
Chen-Ke
CK
Huang
Zhi-Jian
ZJ
Huang
D000327:Adsorption; D002482:Cellulose / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry* / Q000302:isolation & purification*; D004801:Eosine Yellowish-(YS) / Q000737:chemistry* / Q000302:isolation & purification*; D005029:Ethylenediamines / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D031786:Saccharum / Q000737:chemistry*; D013997:Time Factors; D014867:Water / Q000737:chemistry
D004396:Coloring Agents; D005029:Ethylenediamines; D014867:Water; D002482:Cellulose; C027433:bagasse; D004801:Eosine Yellowish-(YS); C034269:tetraethylenepentamine