[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5857/RCP.2015.4.3.73

Visible light-induced reduction of Cr(VI) in cationic micelle solution

Kyung, Hyunsook (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Cho, Young-Jin (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Choi, Wonyong (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))

Publication Information

Rapid Communication in Photoscience / v.4, no.3, 2015 , pp. 73-75 More about this Journal

Abstract

Cr(VI) reduction was successfully achieved in the presence of cationic micelles (CMs) under visible light illumination. Micelle formation of cationic surfactants seems to be critical in Cr(VI) reduction. Cr(VI) was reduced very fast above the critical micelle concentration (cmc) of CTAB solutions, but was not reduced at all either below or around the cmc of CTAB. The reduction rate of Cr(VI) was enhanced in the absence of dissolved oxygen, supporting that the removal of Cr(VI) should be achieved via a reductive pathway. When CTAB was substituted by Brij 35 or SDS, the reduction of Cr(VI) was negligible. This indicates that the electrostatic interaction between Cr(VI) and headgroups of surfactants is important in the visible light-induced Cr(VI) reduction in micellar solutions.

Keywords

Cr(VI) reduction; Micellar photochemistry; Cationic micelle; Visible-light induced charge transfer;

Citations & Related Records

Reference

1	Costa, M. Toxicol. Appl. Pharmacol. 2003, 188, 1. DOI ScienceOn
2	Lin, W. Y.; Wei, C.; Rajeshwar, K. J. Electrochem. Soc. 1993, 140, 2477. DOI
3	Ku, Y.; Jung, I.-L. Wat. Res. 2001, 35, 135. DOI ScienceOn
4	Mandal, U.; Ghosh, S.; Dey, S.; Adhikari, A.; Bhattacharyya, K. J. Chem. Phys. 2008, 128, 164505. DOI ScienceOn
5	Ding, H.; Yu, H.; Dong, Y.; Tian, R.; Huang, G.; Boothman, D. A.; Sumer, B. D.; Gao, J. J. Control. Release 2011, 156, 276. DOI ScienceOn
6	Kopec, M.; Niemiec, W.; Laschewsky, A.; Nowakowska, M.; Zapotoczny, S. J. Phys. Chem. C 2014, 118, 2215. DOI ScienceOn
7	Tavernier, H. L.; Laine, F.; Fayer, M. D. J. Phys. Chem. A 2001, 105, 8944.
8	Alkaitis, S. A.; Beck, G.; Graetzel, M. J. Am. Chem. Soc. 1975, 97, 5723. DOI
9	Hackett, J. W.; Turro, C. J. Phys. Chem. A 1998, 102, 5728. DOI ScienceOn
10	Cho, Y.; Kyung, H.; Choi, W. Appl. Catal. B: Environ. 2004, 52, 23 DOI
11	Cho, Y.; Park. H.; Choi, W. J. Photochem. Photobiol. A: Chem. 2004, 165, 43 DOI
12	Long, J. A.; Rankin, B. M.; Ben-Amotz, D. J. Am. Chem. Soc. 2015, 137, 10809. DOI
13	Shi, Z.; Sigman, M. E.; Ghosh, M. M.; Dabestani, R. Environ. Sci. Technol. 1997, 31, 3581. DOI ScienceOn
14	Buwalda, R. T.; Jonker, J. M.; Engberts, J. B. F. N. Langmuir 1999, 15, 1083. DOI ScienceOn
15	Cang, H.; Brace, D. D.; Fayer, M. D. J. Phys. Chem. B 2001, 105, 10007. DOI ScienceOn
16	Turro, N. J.; Gratzel, M.; Braun, A. M. Angew. Chem. Int. Ed. 1980, 19, 675 DOI ScienceOn
17	Munoz, J.; Domenech, X. J Appl Electrochem 1990, 20, 518. DOI
18	Gimenez, J.; Aguado, M. A.; Cervera-March, S. J. Mol. Catal. A: Chem. 1996, 105, 67. DOI