Two dimensional S-scheme Bi2WO6–TiO2–Ti3C2 nanocomposites for efficient degradation of organic pollutants under natural sunlight

Magnetic grinding synthesis of copper sulfide-based photocatalytic composites for the degradation of organic dyes under visible light

“…Photocatalytic materials can break the bigger pollutant molecules into small fragments along with the mineralization upon prolonged light irradiation and we usually improved photocatalytic performance by diminishing the recombination of the resulting photogenerated charges. 51 The p-n heterojunction can effectively inhibit electron-hole recombination. Based on the above discussion, possible pathways for the degradation of organic dyes with CuS/ZnS and CuS/CdS composites can be described.…”

Mechanistic Understanding in Manipulating Energetics of TiO2 for Photocatalysis

“…In the case of Z-scheme MgO/TiO 2 /g-C 3 N 4 ternary heterojunction, the introduction of MgO was found to increase charge separation through Ti 3+ and oxygen vacancy defect formation at the MgO/TiO 2 interphase, in addition to already superior separation efficiency of TiO 2 /g-C 3 O 4 heterojunction. , Z-scheme Bi 2 WO 6 /TiO 2 heterojunction was shown to reduce bandgap, fast transport, and efficient separation of photogenerated charges for photocatalytic H 2 production . S-scheme heterojunctions such as ZnS/TiO 2 and ZnCo 2 S 4 /TiO 2 also show improved visible light photoactivity owing to their high charge separation efficiency and fast charge transfer. , Two-dimensional (2D) S-scheme heterostructures Fe@TiO 2 /Boron carbon nitride and Bi 2 WO 6 –TiO 2 –Ti 3 C 2 nanocomposites produced higher degradation of organic pollutants by complex interfacial charge separation and transfer as well as the high surface area from the 2D structures for pollutant adsorption. In the case of BiFeO 3 /TiO 2 composite, the induced magnetic field is actually the main reason for the suppression of charge recombination .…”

“…139 S-scheme heterojunctions such as ZnS/TiO 2 and ZnCo 2 S 4 /TiO 2 also show improved visible light photoactivity owing to their high charge separation efficiency and fast charge transfer. 140,141 Two-dimensional (2D) S-scheme heterostructures Fe@TiO 2 /Boron carbon nitride 142 and Bi 2 WO 6 −TiO 2 −Ti 3 C 2 143 nanocomposites produced higher degradation of organic pollutants by complex interfacial charge separation and transfer as well as the high surface area from the 2D structures for pollutant adsorption. In the case of BiFeO 3 / TiO 2 composite, the induced magnetic field is actually the main reason for the suppression of charge recombination.…”

Facile Synthesis of Gram-Scale Mesoporous Ag/TiO2 Photocatalysts for Pharmaceutical Water Pollutant Removal and Green Hydrogen Generation

“…It creates oxygen vacancies (O v ), which modify the electronic properties, surface chemistry, and coordination environment at TiO 2 , enhancing the visible-light activity and charge separation, thus promoting photocatalytic performance. , Recently, a series of heteroatom dopants, including metal and nonmetal atoms (e.g., Cu, Ag, Au, La, N, C, etc. ), have been reported to enhance the performance of mesoporous TiO 2 . − In addition, reduced graphene oxide , and graphene quantum dot (QD) composites , also promoted charge transfer at TiO 2 photocatalysts. The metal dopant dramatically increases the oxygen vacancy at the TiO 2 lattice, modifies electron density, and reduces recombination between electron–hole pairs at the photocatalyst.…”

“…), have been reported to enhance the performance of mesoporous TiO 2 . 22 − 30 In addition, reduced graphene oxide 31 , 32 and graphene quantum dot (QD) composites 33 , 34 also promoted charge transfer at TiO 2 photocatalysts. The metal dopant dramatically increases the oxygen vacancy at the TiO 2 lattice, modifies electron density, and reduces recombination between electron–hole pairs at the photocatalyst.…”