Boosting photocatalytic hydrogen production via enhanced exciton dissociation in black phosphorus quantum Dots/TiO2 heterojunction

Facile synthesis of a novel 0D/2D CdS/Bi4TaO8Br heterojunction for enhanced photocatalytic tetracycline hydrochloride degradation under visible light

“…6d). 45,46 The electron spin resonance (ESR) tests in Fig. 7a and b prove that the CdS/Bi 4 TaO 8 Br-200 photocatalyst can generate more O 2 À and OH than the pure Bi 4 TaO 8 Br sample.…”

ZIF-8-Supported AgInS2 Quantum Dots for Photocatalytic H2 Production by Precise Location Sulfurization

“…Quantum dots (QDs), as a kind of zero-dimensional (0D) nanoscale semiconductor material, , show great prospects for biomedical, display materials, food testing, and solar cells, given their unique advantages such as ultrasmall size, broad spectrum of light absorption, tunable energy band gaps, and short effective charge-transfer distance. − On the other hand, as a new type of photocatalyst, QDs have gradually become star materials in the field of photohydrogen production due to their excellent visible-light response, long excited-state lifetime, and good photostability. − However, the disadvantages of QDs have hindered their further application; for instance, QDs are prone to reunion and have an excessively fast recombination rate of photogenerated carriers . Therefore, preparing semiconductor nanocomposites in metal–organic frameworks (MOFs) with holes is a simple, effective, and easily reproducible method to improve the spatial dispersion and stability of QDs. − In particular, because of the broadband gap and appropriate hole size, the ZIF-8-based nanocomposites can have high chemical stability and high optical stability, which has become the research focus of MOF materials. In addition, the aggregation and charge transport of QDs in photocatalysis can be avoided when ZIF-8 and QDs are combined as photocatalytic materials due to their abundant carbon and nitrogen ligands, as well as high metal ion content, larger surface area, abundant internal channels, and tunable porosity.…”

Fabrication of Sulfur Defect Rich ZnIn2S4/SnSe2 Photocatalyst with Ohmic Junction for Efficient Water to Hydrogen Energy Conversion

“…[ 3 ] To stimulate the photocatalytic H 2 evolution efficiency, the primary task lies on seeking efficient and stable photocatalytic materials. Various photocatalysts including metal oxide (e.g., TiO 2 , [ 1,4 ] BaTiO 3 [ 5 ] and In 2 O 3 [ 6 ] ), metal sulfide (e.g., CdS, [ 7,8 ] ZnCdS solid solution [ 9 ] and ZnIn 2 S 4 [ 10,11 ] ), and metal‐free materials (e.g., g‐C 3 N 4 [ 12,13 ] and BP [ 14,15 ] ) have been developed as candidates for H 2 evolution. Among them, ZnIn 2 S 4 is one of the central photocatalysts because its well visible‐light responsive ability, suitable band structure and stable physicochemical property.…”