The Malaysian Journal of Analytical Sciences Vol 12 No 2 (2008): 451 – 457

 

 

 

 

REMOVAL OF CATIONIC AND ANIONIC DYES BY IMMOBILISED TITANIUM DIOXIDE LOADED ACTIVATED CARBON

 

Chang Sook Keng, Zulkarnain Zainal* and Abdul Halim Abdullah

 

Department of Chemistry, Faculty of Science, Universiti Putra Malaysia,

43400 UPM Serdang, Selangor, Malaysia

 

* Corresponding author: zulkar@fsas.upm.edu.my

 

Abstract

Combination of adsorption and photodegradation processes induces strong beneficial effects in dye removals. Adding high adsorption capacity activated carbon to photoactive titanium dioxide is an attractive solution due to their potential in removing dyes of diverse chemical characteristics. Recently, immobilisation has been an acceptable approach to overcome the drawbacks encountered with powder suspensions. The present study involves the removals of Victoria Blue R (VBR), a cationic dye and Indigo Carmine (IC), an anionic using approximately one gram of immobilised titanium dioxide (TiO₂), activated carbon (AC) and mixture titanium dioxide/activated carbon (TiO₂/AC) from 200 mL solution at the concentration of 20 ppm under UV illumination for 4 hours. Comparisons were made in terms of their removal efficiency by applying first-order kinetics model. Immobilised TiO₂ showed total removal of IC in 40 minutes whereas only 44% of VBR was removed in 2 hours. On the other hand, in the case of immobilised AC, about 87% of VBR and 6% of IC were removed in 2 hours. The results obtained using immobilised TiO₂/AC proved the prominence of this immobilised sample in dealing with VBR and IC by achieving 95% and 62% removal respectively in 2 hours.

 

Keywords: Adsorption; Photodegradation; Activated carbon; Titanium dioxide; Cationic ananionic dyes

 

References

1.       C., Hessel, C., Allegre, M., Maisseu, F., Charbit and P., Moulin (2007). Guidelines and legislation for dye house effluents. Environ. Manage. 83,171-180.

2.       K.H., Choo, S.J., Choi and E.D., Hwang (2007) Effect of coagulant types on textile wastewater reclamation in a combined coagulation/ultrafiltration system. Desalination 202, 262-270.

3.       T.P., Shah, Y., Yoon, C.L., Pederson and R.M., Lueptow (2006) Rotating reverse osmosis and spiral wound reverse osmosis filtration: A comparison. J. Membr. Sci. 285, 353-361.

4.       G., Capar, L., Yilmaz and U., Yetis (2006) Reclamation of acid dye bath wastewater: Effect of pH on nanofiltration performance. J. Membr. Sci. 281, 560-569.

5.       T.A., Kurniawan, G.Y.S., Chan, W.H., Lo and S., Babel (2006) Physico-chemical treatment techniques for wastewater laden with heavy metals. Chem. Eng. J. 118, 83-89.

6.       X., Qu, J., Zheng and Y., Zhang (2007) Catalytic ozonation of phenolic wastewater with activated carbon fiber in a fluid bed reactor. J. Colloid Interface Sci. 309, 429-434.

7.       S., Barredo-Damas, M.I., Iborra-Clar, A., Bes-Pia, M.I., Alcaina-Miranda, J.A., Mendoza-Roca and A., Iborra-Clar (2005) Study of preozonation influence on the physical-chemical treatment of textile wastewater. Desalination 182, 267-274.

8.       T.E., Agustina, H.M. Ang and V.K., Vareek (2005) A review of synergistic effect of photocatalysis and ozonation on wastewater treatment. J. Photochem. Photobio. C: Photochem. Rev. 6, 264-273.

9.       H., Selcuk (2005) Decolorization and detoxification of textile wastewater by ozonation and coagulation processes. Dyes Pigments 64, 217-222.

10.    A.H., Elshazly and A.H. Konsowa (2003) Removal of nickel ions from wastewater using a cation-exchange resin in a batch-stirred tank reactor. Desalination 158, 189-193.

11.    D., Paul, G., Pandey, J., Pandey and R.K., Jain (2005). Accessing microbial diversity for bioremediation and environmental restoration. Trends Biotechnol. 23(3), 135-142.

12.    M.A., Oliveira, E.M., Reis and J., Nozaki (2001) Biological treatment of wastewater from the cassava meal industry. Environ. Res. Sect. A 85, 177-183.

13.    R. Yuan, R. Guan, W. Shen and J. Zheng (2005) Photocatalytic degradation of methylene blue by a combination of TiO₂ and activated carbon fibers. J. Coll. Interf. Sci. 282, 87-91.

14.    E. Carpio, P. Zúñiga, S. Ponce, J. Solis, J. Rodriquez and W. Estrada (2005) Photocatalytic degradation of phenol using TiO₂ nanocrystals supported on activated carbon. J. Mol. Catal. A: Chem. 228, 293-298.

15.    B., Tryba, A.W., Morawski, M., Inagaki, M. (2003) “Application of TiO₂-mounted activated carbon to the removal of phenol from water”. Appl. Catal. B: Environ. 41, 427-433.

16.    J., Matos, J., Laine, J.M. Herrmann (1998) “Synergy Effect in the photocatalytic degradation of phenol on a suspended mixture of titania and activated carbon”. Appl. Catal. B: Environ. 18, 281-291.

17.    T., Torimoto, Y., Okawa, N., Takeda and H., Yoneyama (1997) Effect of activated carbon content in TiO₂-loadedactivated carbon on photodegradation behaviours of dicholoromethane. J. Photochem. Photobio. A: Chem. 103, 153-157.

18.    P., Qu, J., Zhao, L., Zang, T., Shen and H., Hidaka (1998) Enhancement of the photoinduced electron transfer from cationic dyes to colloidal TiO₂ particles by addition of an anionic surfactant in acidic media. Colloids Surf. A: Physicochem. Eng. Aspects 138, 39-50.

19.    M.A., Hasnat, I.A., Siddiquey and A., Nuruddin (2005) Comparative photocatalytic studies of degradation of a cationic and an anionic dye. Dyes Pigments 66, 185-188.

20.    J.W. Hassler (1974) Purification with Activated Carbon: Industrial, Commercial, Environmental. New York: Chemical Publishing Co., Inc.