Characterization of PdHAp and Catalysis for Benzyl Alcohol Green Oxidation

doi:10.3724/SP.J.1077.2012.12060

Abstract

Abstract: The PdHAp catalysts were prepared by simple ion-exchange method and calcium ions were replaced by palladium ions. As-prepared catalysts were applied for the green oxidation of benzyl alcohol. The catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma emission spectroscopy (ICP-AES), X-ray photoelectron spectroscope (XPS), field emission scanning electron microscope (FE-SEM), field emission transmission electron microscope (FE-TEM) and other techniques. The results show that some of the palladiums enter the crystal lattice of HAp, and the other palladiums were on HAp crystal surface in the form of nanoparticles. Pd nanoclusters show high dispersion of the catalysts. Palladium content is the key factor to determine catalysts’ performance. With the palladium content increasing, the catalytic efficiency was correspondingly improved. The catalysts have a good selectivity and possess excellent reusability.

Key words: hydroxyapatite, benzyl alcohol, catalytic oxidation, ion-exchange

CLC Number:

TB321

WU Wei, YUAN En-Lin, ZENG Yi, LIU Zi-Wei, LIN Chu-Cheng, LI Yong-Sheng. Characterization of PdHAp and Catalysis for Benzyl Alcohol Green Oxidation[J]. Journal of Inorganic Materials, 2012, 27(12): 1289-1293.

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