Adsorption Behavior of Barley Straw Carbon for Chromium (VI) Ion


Article Preview

Porous carbon having surface area of 792 m2g-1 was prepared from barley straw by carbonization at 800 oC at a heating rate of 5 oCmin-1 to test the chromium (VI) adsorption from aqueous solution. The effects of pH, contact time and equilibrium Cr (VI) concentration on the adsorption were studied in detail. The optimum pH for Cr (VI) removal was found to be 2. The adsorption of Cr (VI) was very rapid and equilibrium was reached within 1 h. It was interpreted in terms of adsorption-coupled reduction mechanism. Accompanied by the decrease of Cr (VI) ion, Cr (III) ion was slightly released in the solution. Maximum loading capacity of total chromium was found to be 2.35 molkg-1 at pH 2.



Edited by:

Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee




R. Chand et al., "Adsorption Behavior of Barley Straw Carbon for Chromium (VI) Ion", Materials Science Forum, Vol. 569, pp. 213-216, 2008

Online since:

January 2008




[1] Information on http: /www. dhs. ca. gov/ohb/HESIS/cr6. htm (accessed on: 2007-08-28).

[2] Information on Biol Trace Elem Res. 1992 Jan-Mar; 32: 145-53 (accessed on: 2007-08-28).

[3] B. mukhopadhyay, J. Sundquist, R. J. Schmitz: Journal of environmental management 82 (2007) 66-76.

[4] M. K. Aroua, F. Mohamed Zuki, N. M. Sulaiman: Journal of Hazardous Materials 147 (2007) 752-758.

[5] Y. Huang, X. Ma, G. Liang, Y. Yan, S. Wang: Chemical Engineering Journal (2007), doi.

[10] 1016/j. cej. 2007. 06. 017.

[6] S. P. Dubey, K. Gopal: Journal of Hazardous Materials (2006), doi: 10. 1016/j. Jhazmat. 2006. 11. 041.

[7] Roop Chand bansal, Meenakshi Goyal: 2005, CRC Press, Taylor and FrancisGroup6000Broken Sound Parkway NW, Suite300, Boca Raton, FL 33487-2742, 316pp.

[8] Y. Guo, J. Qi, S. Yang, K. Yu, Z. Wang, H. Xu: Materials Chemistry and Physics 78 (2002) 132-137.

[9] K. Selvi, S. Pattabhi, K. Kadirvelu: Bioresource Technology 80 (2001) 87-8.

[10] M. Kobya, E. Demirbas, E. Senturk, M. Ince: Bioresource Technology 96 (2005) 1518-1521.

[11] Information on http: /www. google. co. jp/search?sourceid=navclient&hl=ja&ie=UTF-8&rls=SNYA, SNYA: 200 4-47, SNYA: ja&q=wheat+straw+production (accessed on: 2007-08-28).

[12] G. Arslan, E. Pehlivan: Bioresource Technology 98 (2007) 2836-2845.

[13] D. Park, Y-S. Yun, H. W. Lee, J. M. Park: Bioresource Technology (2007), doi: 10. 1016/j. biortech. 2007. 02. 025.

[14] Letter of the Editor/ Journal of Hazardous Materials B137 (2006) 1254-1257.

[15] A. Nakajima, Y. Baba: Water Research 38 (2004) 2859-2864.