Novel nano-semiconductor film layer supported nano-Pd Complex Nanostructured Catalyst Pd/?-MeO_x/AC for High Efficient Selective Hydrogenation of Phenol to Cyclohexanone.

ABSTRACT: Supported metal as a type of heterogeneous catalysts are the most widely used in industrial processes. High dispersion of the metal particles of supported catalyst is a key factor in determining the performance of such catalysts. Here we report a novel catalyst Pd/?-MeO_x/AC with complex nanostructured, Pd nanoparticles supported on the platelike nano-semiconductor film/activated carbon, prepared by the photocatalytic reduction method, which exhibited high efficient catalytic performance for selective hydrogenation of phenol to cyclohexanone. Conversion of phenol achieved up to more than 99% with a lower mole ratio (0.5%) of active components Pd and phenol within 2?h at 70?°C. The synergistic effect of metal nanoparticles and nano-semiconductors support layer and the greatly increasing of contact interface of nano-metal-semiconductors may be responsible for the high efficiency. This work provides a clear demonstration that complex nanostructured catalysts with nano-metal and nano-semiconductor film layer supported on high specific surface AC can yield enhanced catalytic activity and can afford promising approach for developing new supported catalyst.

SUBMITTER: Si J 

PROVIDER: S-EPMC5430673 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature