Application of Photocatalytic Materials in Sensors

Abstract

Photocatalysis technology can not only decompose water, toxic and harmful substances in the environment, but also directly convert solar energy into electricity and other clean energy. Therefore, the application of photocatalytic materials in sensors has great potential. The purpose of this paper is to review and discuss the application and potential of photocatalytic materials in sensors. The content includes the application of various photocatalytic materials in sensors. The photocatalytic materials mainly include n‐type semiconductor materials TiO2, ZnO, SnO2, Fe2O3, WO3, In2O3 and nonmetallic semiconductor C3N4. Sensors include gas sensors, photoelectrochemical sensors, electrochemical sensors, photocatalytic sensors, and other sensors. The results show that photocatalytic materials are most widely used in gas sensors. In addition to using photocatalytic materials to detect gas, the most common method is to use photocatalytic materials to detect the concentration of metal ions and organic substances in water. The most widely used photocatalytic material is titanium dioxide, and C3N4 as a nonmetallic semiconductor is rarely used in sensors. It can be concluded that photocatalytic materials have great potential in the application of sensors, among which C3N4 as a nonmetallic semiconductor photocatalytic material has more potential.

Electrochemical and photoluminescence response of laser-induced graphene/electrodeposited ZnO composites

“…Moreover, the integration of ZnO provides optical properties suitable for exploring combined optical/electrochemical biotransduction or photoelectrochemical sensing, which can provide extended detection ranges, superior sensitivities and/or lower limits of detection 31 , 38 . ZnO is also a very appealing material for photocatalytic applications owing to its high photosensitivity, stability and bandgap in the near-UV region, being even considered a potential alternative to current benchmark TiO 2 39 . The increase of the active surface area of ZnO by growing it in a highly porous substrate such as LIG is expected to be profitable in photocatalysis by enhancement of dye adsorption and UV light absorption.…”

Modification of Graphitic Carbon Nitride with Hydrogen Peroxide

“…It absorbs visible irradiation as a result of the band gap energy of 2.7 eV. This nanomaterial is potential for a lot of applications, such as solar cells manufacturing [ 4 ], imaging, sensing of some compounds [ 5 , 6 , 7 , 8 , 9 ], etc. In addition, the special interest has been concentrated on its catalytic [ 10 ] and photocatalytic utilization [ 11 , 12 , 13 , 14 , 15 , 16 ].…”

A novel microwave assisted reverse micelle fabrication route for Th (IV)‐MOFs as highly efficient adsorbent nanostructures with controllable structural properties to CO and CH4 adsorption: Design, and a systematic study

“…[9,10] Many methods have been employed to synthesize these nanostructures. [11] Fast, affordable, and biocompatible microwave and ultrasonic methods have recently gained more attention than other methods. [12,13] In addition, the reverse micelle method has been used to produce highly efficient MOF nanostructures.…”