CdIn₂S₄/g-C₃N₄ heterojunction photocatalysts: enhanced photocatalytic performance and charge transfer mechanism

Abstract

CdIn2S4/g-C3N4 heterojunction with excellent photocatalytic activities have been synthesized. The enhanced photocatalytic performance might be ascribed to the efficient photoinduced charge transfer derived from the heterojunction structure.

In situ formation of 2-thiobarbituric acid incorporated g-C3N4 for enhanced visible-light-driven photocatalytic performance

“…To reveal the dominant oxidative species involved in the photodecomposition of Rh B, active radical capturing experiments were carried out, in which p-benzoquinone (BQ), isopropanol (IPA) and ammonium oxalate (AO) were introduced as the quenchers of superoxide radicals (cO 2 À ), hydroxyl radicals (cOH) and photo-excited holes (h + ), respectively. 54,55 As shown in Fig. 10a, the degradation efficiency of Rh B over TBA/CN-3 signicantly reduced from 92.0% to 40.5% with the addition of BQ, reduced to 47.9% with the addition of AO and slightly reduced to 75.4% with the addition of IPA.…”

Visible‐light driven photodegradation of phenol over niobium oxide‐loaded fibrous silica titania composite catalyst

“…However, the peaks become broader and more intense with higher illumination time; •OH species existed during photoinitiated catalytic process, revealed that •OH is a part of the main reactive. 48,49 Experiments were conducted for trapping of reactive species to further validate the active species (Fig. 9(A)) under photocatalytic degradation in the presence of light.…”

Construction of Electrostatic Self-Assembled 2D/2D CdIn2S4/g-C3N4 Heterojunctions for Efficient Visible-Light-Responsive Molecular Oxygen Activation

“…In recent decades, owing to the properties of earth abundance, non-toxicity, a simple preparation process and stable structure, g-C 3 N 4 , which belongs to a type of metal-free photocatalyst, has been widely used for building heterojunctions [25][26][27][28][29][30]. Nevertheless, bulk g-C 3 N 4 exhibits low specific surface areas and suffers from the rapid recombination of photoinduced electron-hole pairs; these drawbacks seriously limit photocatalytic efficiency.…”