Recent advances in the synthesis and application of photocatalytic metal–metal oxide core–shell nanoparticles for environmental remediation and their recycling process

Abstract

Metal–metal oxide core–shell nanoparticles have received enormous research attention owing to their fascinating physicochemical properties and extensive applications. In this review we have discussed the challenges and recent advances in their synthesis and application.

Novel Electro‐Spun Nanograined ZnO/Au Heterojunction Nanofibers and Their Ultrasensitive NO2 Gas Sensing Properties

“…One such promising application is in the field of chemical gas sensors, where they are used to detect trace level concentration of gas molecules owing to the presence of nanograins, nano‐pores and their favored electron transport property and most importantly easy integration with devices ,. Formation of heterojunction metal oxide nanofibers bestows in the excellence due to the formation of interfaces and high surface area . In general, heterojunction materials posses the synergetic effects of its constituents which can be of metal/semiconductor, metal/ metal,semiconductor/semiconductor combinations which makes them better than their individual counter parts .…”

“…[3,4] Formation of heterojunction metal oxide nanofibers bestows in the excellence due to the formation of interfaces and high surface area. [5] In general, heterojunction materials posses the synergetic effects of its constituents which can be of metal/ semiconductor, metal/ metal,semiconductor/semiconductor combinations which makes them better than their individual counter parts. [6] Formation of such heterojunctions on the surface of metal oxide nanostructures paves the way for creation of new multifunctional materials with improved charge transfer, optical, catalytic and surface properties.…”

Synthesis of Zn2TiO4@CdS Core‐shell Heteronanostructures by Novel Thermal Decomposition Approach for Photocatalytic Application

“…Core‐shell heteronanostructures possess often enhanced properties compared to their individual constituents. This arises because of either synergistic interaction between the core and the shell or they offer new physicochemical properties due to their interaction . The properties of core‐shell nanomaterials can be tuned by varying the size, and shape of core/shell or completely changing the composition of core or shell depending upon a desired application …”

“…This arises because of either synergistic interaction between the core and the shell or they offer new physicochemical properties due to their interaction. [5,6] The properties of core-shell nanomaterials can be tuned by varying the size, and shape of core/shell or completely changing the composition of core or shell depending upon a desired application. [7] Core-shell nanoparticles based on titanates have been employed for various applications.…”

The Synthesis of SiO2@AuAg@CeO2 Sandwich Structures with Enhanced Catalytic Performance Towards CO Oxidation

“…Among the current various strategies, the encapsulated structures, such as sandwich structure, core‐shell structure, and yolk‐shell structure, have been considered as effective methods to enhance the stability of Au‐based catalysts. The strong protection from the shell could inhibit the Au particles from aggregation.…”