PdO/ZnO@mSiO2 Hybrid Nanocatalyst for Reduction of Nitroarenes

Abstract

Development of a novel approach for synthesizing nanostructured catalysts and achieving further improvements in catalytic activity, effectiveness, and efficiency remains a major challenge. In this report, we describe the preparation of a nanostructured PdO/ZnO@mSiO 2 hybrid nanocatalyst featuring well-dispersed PdO nanoparticles within hollow ZnO@mSiO 2 . The as-prepared PdO/ZnO@mSiO 2 hybrid nanocatalyst exhibited good morphological features, derived from the controlled stepwise synthesis from Pd/PS@ZIF-8@mSiO 2 (PS = polystyrene). The morphology, size, oxidation state, crystallinity, and thermal stability of the prepared PdO/ZnO@mSiO 2 hybrid nanocatalyst were confirmed by a series of physicochemical techniques. The PdO/ZnO@mSiO 2 hybrid nanocatalyst showed very high catalytic efficiency in the reduction of 4-nitrophenol and various nitroarenes under eco-friendly conditions. Therefore, the PdO/ZnO@mSiO 2 hybrid nanocatalyst is a promising alternative catalyst for applications in environmental remediation.

Synthesis of silver nanostructures in ionic liquid media and their application to photodegradation of methyl orange

“…20 Very recently, our group reported the reduction of nitroarenes by PdO/ZnO@mSiO 2 hybrid nanocatalysts. 21 Xu et al emphasized on the photocatalytic degradation of 4-chlorophenol by Ag/AgBr/TiO 2 / GO. 22 Cui et al reported on the facile preparation of silver halide nanoparticles on visible light photocatalysts.…”