Dual co-catalysts Ag/Ti3C2/TiO2 hierarchical flower-like microspheres with enhanced photocatalytic H2-production activity

Defect Engineering Adjusting Graphdiyne/Mn0.3Cd0.7S S‐Scheme Heterojunction Interface Charge Arrangement for Efficient Photocatalytic Hydrogen Evolution

“…The flat band potentials of GDY, MCS-1, MCS-2, and MCS-3, using the standard hydrogen electrode as a reference, are calculated using the E NHE = E SCE þ 0.24 eV equation. [52,53] The flat band potentials of GDY, MCS-1, MCS-2, and MCS-3 are À0.29, À1.44, À1.41, and À1.38 eV, separately. In general, the conduction band (CB) of ntype semiconductors is more negative by 0.2 eV than the flat band potential, while the valence band (VB) of p-type The appearance of vacancies usually changes the charge distribution on the catalyst surface.…”

A H2O2 Oxidation Approach to Ti3C2/TiO2 for Efficient Photocatalytic Removal of Distinct Organic Pollutants in Water

“…5−9 In photocatalysis, Ti 3 C 2 MXenes enable the rapid migration of electrons, which inhibits the electron−hole recombination of TiO 2 and in turn enhances its photocatalytic performance. The Ti 3 C 2 MXene composited TiO 2 10,11 and that further composited with other semiconductors like CdS, 12,13 ZnIn 2 S 4 , 14 and C 3 N 4 , 15,16 or other materials of rGO 17 or precious metals 18,19 have thus received attention in recent years. Ti 3 C 2 MXene is prone to oxidation because of its surface functional groups (such as −OH, −F) and multilayered structure that makes it prone to oxidative reactions when exposed to oxygen.…”

“…In 2011, Naguib et al used HF to selectively etch away the metal Al layer in the ternary layered intermetallic compound Ti 3 AlC 2 and successfully prepared two-dimensional Ti 3 C 2 MXene materials. , Since then, these MXene materials of two-dimensional transition metal carbide or carbon-nitride have found wide applications in the environment and energy region because of their unique graphene-like structure and excellent physicochemical properties. − In photocatalysis, Ti 3 C 2 MXenes enable the rapid migration of electrons, which inhibits the electron–hole recombination of TiO 2 and in turn enhances its photocatalytic performance. The Ti 3 C 2 MXene composited TiO 2 , and that further composited with other semiconductors like CdS, , ZnIn 2 S 4 , and C 3 N 4 , , or other materials of rGO or precious metals , have thus received attention in recent years. Ti 3 C 2 MXene is prone to oxidation because of its surface functional groups (such as −OH, −F) and multilayered structure that makes it prone to oxidative reactions when exposed to oxygen.…”

High-performance TiO2 catalyst composited with In–1,1,2,2-tetra(4-carboxylbiphenyl)ethylene for the efficient degradation of organic pollutants

“…9–12 Flower-like TiO 2 structures have attracted considerable attention from researchers owing to their large specific surface areas and excellent catalytic activities. 13 However, TiO 2 suffers from the low adsorption capacity and solar energy conversion efficiency. Currently, combinations of TiO 2 with other materials, such as noble metals, ions, and composite semiconductors, are commonly used to enhance its photocatalytic performance by constructing heterogeneous structures.…”