2007 Volume 21 Pages 1-8
New findings obtained in our laboratory from the employment of various hydroxyapatites as heterogeneous catalysts and immobilization reagents of aqueous heavy metal cations are reviewed in the present article. Catalytic active cite on hydroxyapatite for the oxidation of alkanes and the possibility of the recycle-use of calcium hydroxyapatite for the removal-regeneration of aqueous heavy metal cations are suggested.