1. F. Cavani, F. Trifiro, A. Vaccari, Catal. Today, 11 (1991) 173.
2. M. A. Ulibarri, M. C. Hermosín, Layered Double Hydroxides: Present and Future, Nova Science Publishers, Inc., New York, 2001, p. 253.
3. S. Miyata, Clay. Clay Miner., 28 (1980) 50.
4. Z. F. Ren, J. He, C. Q. Zhang, X. Duan, Fine Chemicals, 19 (2002) 339.
5. L. Lv, J. He, M. Wei, D. G. Evans, X. Duan, J. Hazard. Mater., in press.