Ternary photocatalysts based on MOF-derived TiO₂ co-decorated with ZnIn₂S₄ nanosheets and CdS nanoparticles for effective visible light degradation of organic pollutants

Abstract

One of the feasible strategies to enhance the photocatalytic property of TiO2 is to broaden the visible light response range and accelerate the separation rate of photo-induced electron-hole (e−-h+) pair...

State of the art and prospectives of heterogeneous photocatalysts based on metal–organic frameworks (MOFs): design, modification strategies, and their applications and mechanisms in photodegradation, water splitting, and CO2reduction

“…Similarly, metal oxides (such as TiO 2 (ref. 163 and 164) and ZnO (ref. 165)), as semiconductor materials with wide bandgap, have strong photoexcited hole ability, 166 which makes them very suitable for the photocatalytic degradation of water pollutants.…”

In situ self-assembly fabrication of ultrathin sheet-like CuS modified g–C3N4 heterojunction and its enhanced visible-light photocatalytic performance

“…To further clarify the photocatalytic mechanism of degrading MB by CuS/g-C 3 N 4 -60%, active species produced during the photocatalytic process were investigated by capturing experiments. Scavengers for trapping active species, disodium ethylenediaminetetraacetic acid (EDTA), benzoquinone (BQ) and tert-butanol (t-BuOH), are used for capturing holes (h + ), superoxide radicals (•O 2 − ) and hydroxyl radicals (•OH), respectively [37][38][39]. As shown in figure 10, comparing with the MB degradation efficiency of using CuS/g-C 3 N 4 -60% without adding any scavenger, it decreased so slightly that it can be neglected when t-BuOH was added.…”

Coupling ZnIn2S4 Nanosheets with MoS2 Hollow Nanospheres as Visible-Light-Active Bifunctional Photocatalysts for Enhancing H2 Evolution and RhB Degradation

“…ZnIn 2 S 4 , as one of the most widely used ternary sulfide semiconductors, is considered an outstanding contender for the probable use in visible-light photocatalytic H 2 production, , organic pollutant degradation, , and CO 2 reduction , due to its narrow band gap (∼2.4 eV), significant stability, and layered structure. Nonetheless, it should be emphasized that pure ZnIn 2 S 4 invariably exhibits low photoinduced charge carrier separation efficiency.…”