Photoreductive dechlorination of chlorinated benzene derivatives catalyzed by ZnS nanocrystallites

Abstract

ZnS nanocrystallites effectively enhanced photo-reduction of chlorinated benzene derivatives in the presence of triethylamine as a sacrificial electron donor under UV irradiation (λ > 300 nm), leading to selective and stepwise dechlorination to give benzene at the final stage.

References

1. D. Cesareo, A. D. Domenico, S. Marchini and L. Passerini in Homogeneous and Heterogeneous Photocatalysis, ed. E. Pelizzetti and N. Serpone, D. Reidel Publishing Co., Dordrecht, 1985, vol. 174, p. 593; B. G. Oliver and J. H. Carey, ibid., p. 629; D. F. Ollis, ibid., p. 651.
2. J. Theurich, M. Lindner and D. W. Bahnemann, Langmuir, 1996, 12, 6368.
3. D. Mas, P. Pichat and C. Guillard, Res. Chem. Intermed., 1997, 23, 275.
4. Y. Wada, M. Taira, D. Zheng and S. Yanagida, New J. Chem., 1994, 18, 589.
5. W. Choi and M. R. Hoffmann, Environ. Sci. Technol., 1995, 29, 1646.
6. D. C. Schmelling, K. A. Gray and P. V. Kamat, Environ. Sci. Technol., 1996, 30, 2547.
7. M. Kanemoto, H. Hosokawa, Y. Wada, K. Murakoshi, S. Yanagida, T. Sakata, H. Mori, M. Ishikawa and H. Kobayashi, J. Chem. Soc., Faraday Trans., 1996, 92, 2401.
8. M. Ohashi, K. Tsujimoto and K. Seki, J. Chem. Soc., Chem. Commun., 1973, 384.
9. N. J. Bruce, S. Saffe and L. O. Ruzo, J. Chem. Soc., Perkin Trans. 1, 1975, 1607.
10. S. O. Farwell, F. A. Beland and R. D. Geer, Electroanal. Chem., Interfacial Electrochem., 1975, 61, 303.
11. J. W. Sease, F. G. Burton and S. L. Nickol, J. Am. Chem. Soc., 1968, 90, 2595.