Comparison of Photochemical Reactions of m-Cresol in Aqueous Solution and in Ice

Abstract

Abstract: We compared the photochemical reaction of m-cresol containing OH precursors such as H₂O₂, NO₂^- and NO₃^- in aqueous solution with those in ice. The results show that the conversion rate of m-cresol in aqueous solution was higher than that in ice. H₂O₂, NO₂^- and NO₃^- all accelerated the photoconversion of m-cresol in both aqueous solution and ice. The photochemical reactions of m-cresol obeys the first order kinetics equation. According to the photoproducts identified by GC-MS, we proposed that hydroxylation and nitration reactions occurred in both aqueous solution and ice. Coupling reaction was common in ice, however, in aqueous solution it was found only in UV system. Our results suggest that the photochemical reactions of m-cresol were different in aqueous solution and in ice.

Key words: m-Cresol, Photochemistry, Aqueous solution, Ice, Mechanism

PENG Fei, XUE Hong-hai, TANG Xiao-jian, KANG Chun-li, LI Lin-lin, LI Zhe. Comparison of Photochemical Reactions of m-Cresol in Aqueous Solution and in Ice[J]. Chemical Research in Chinese Universities, 2012, 28(1): 47-52.

References

[1] Klanova J., Klan P., Nosek J., Holoubek I., Environ. Sci. Technol.,2003, 37, 1568 [2] Miller S., Environ. Sci. Technol., 1983, 17, 568A [3] Zafiriou O. C., Joussot-Dubien J., Zepp R. G., Environ. Sci. Technol.,1984, 18, 358A [4] Klán P., Holoubek I., Chemosphere, 2002, 46, 1201 [5] Domine F., Shepson P. B., Science, 2002, 297, 1506 [6] Dubowski Y., Hoffmann M. R., Geophys. Res. Lett., 2000, 27, 3321 [7] Grannas A. M., Jones A. E., Dibb J., Ammann M., Anastasio C.,Beine H. J., Bergin M., Bottenheim J., Boxe C. S., Carver G., Chen G., Crawford J. H., Domine F., Frey M. M., Guzman M. I., Heard D.E., Helmig D., Hoffmann M. R., Honrath R. E., Huey L. G., HutterliM., Jacobi H. W., Klan P., Lefer B., McConnell J., Plane J., Sander R., Savarino J., Shepson P. B., Simpson W. R., Sodeau J. R., vonGlasow R., Weller R., Wolff E.W., Zhu T., Atmos. Chem. Phys., 2007,7, 4329 [8] Anastasio C., Galbavy E. S., Hutterli M. A., Burkhart J. F., Friel D.K., Atmos. Environ., 2007, 41, 5110 [9] Chu L., Anastasio C., Environ. Sci. Technol., 2007, 41, 3626 [10] Pagni R. M., The Handbook of Environmental Chemistry, Springer,Verlag, Berlin, Heidelberg, New York, 2005, 193 [11] Chu L., Anastasio J. C., Phys. Chem. A, 2003, 107, 9594 [12] Chu L., Anastasio J. C., Phys. Chem. A, 2005, 109, 6264 [13] Jacobi H. W., Annor T., Quansah E., J. Photochem. Photobiol. A,2006, 179, 330 [14] Anastasio C., Chu L., Environ. Sci. Technol., 2009, 43, 1108 [15] Ram K., Anastasio C., Atmos. Environ., 2009, 43, 2252 [16] Cotter E. S. N., Jones A. E., Wolff E. W., Bauguitte S. J. B., J. Geophys.Res., 2003, 108, 8 [17] Grannas A. M., Bausch A. R., Mahanna K. M., Phys. Chem. A, 2007,111, 11043 [18] Kahan T. F., Donaldson D. J., J. Phys. Chem. A, 2007, 111, 1277 [19] Kahan T. F., Donaldson D. J., Environ. Res. Lett., 2008, 3, 045006 [20] Tang X. J., Kang C. L., Guo P., Gao H. J., Jiang Y., Kang C. X., LiuX. J., Sci. Tech. Engng., 2008, 8, 138 [21] Gao H. J., Kang C. L., Guo P., Peng F., Tang X. J., Liu X. J., Environ.Chem., 2008, 27, 292 [22] Alapi T., Dombi A., J. Photochem. Photobiol. A, 2007, 188, 409 [23] Hutterli M. A., McConnell J. R., Stewart R. W., Jacobi H. W., BalesR. C., J. Geophys. Res., 2001, 106, 15395 [24] Anastasio C., Jordan A. L., Atmos. Environ., 2004, 38, 1153 [25] France J. L., King M. D., Lee T., Atmos. Environ., 2007, 41, 5502 [26] Kang C. L., Tang X. J., Guo P., Gao H. J., Peng F., Chem. J. Chinese Universities, 2009, 30(4), 757 [27] Kang C. L., Tang X. J., Guo P., Gao H. J., Peng F., Acta Scientiae Circumstantiae, 2009, 5, 1036 [28] Klanova J., Klan P., Heger D., Holoubek I., Photochem. Photobiol.Sci., 2003, 2, 1023