In situ growth of CdS nanoparticles on UiO-66 metal-organic framework octahedrons for enhanced photocatalytic hydrogen production under visible light irradiation

Zirconium metal-organic framework supported highly-dispersed nanosized BiVO4for enhanced visible-light photocatalytic applications

“…The crystal structure and chemical composition of the different samples was characterized by powder XRD. Figure (a) illustrates the XRD pattern of the pure UiO‐66 powder, pure BiVO 4 and UiO‐66@BiVO 4 ‐X powders in the 2θ range 5–80°, the peaks of UiO‐66 are well matched with the previous literature, indicating that the UiO‐66 framework has been successfully synthesized. For pure BiVO 4 , all the diffraction peaks are assigned to the monoclinic BiVO 4 phase (JCPDS NO: 14–0688) indicating that the pure BiVO 4 has a monoclinic scheelite type crystal structure, and these peaks can also be clearly identified in all the XRD patterns of UiO‐66@BiVO 4 ‐X.…”

“…Owing to the effect of mass transportation in photocatalytic reactions, MOF‐based hybrid materials have been considered to be promising candidates to enhance photocatalytic activity. He and co‐workers synthesized the CdS embedded MIL‐101 with remarkable visible‐light activity for visible light‐driven hydrogen production; Xu and co‐workers reported a facile hydrothermal method to synthesize N‐K 2 Ti 4 O 9 /MIL‐101 with enhanced photodegradation of RhB; Zhou et al reported CdS grown on the surface of UiO‐66 for enhanced photocatalytic hydrogen production under visible light irradiation; and Esken et al synthesized GaN/ZIF‐8 and Zhou et al synthesized BiOBr/UiO‐66 with remarkable photocatalytic activity for dye degradation. As a typical MOFs material, UiO‐66 possesses high chemical and thermal stability and has been used for catalysis, hydrogen generation, gas storage and drug delivery .…”

Fabrication of WO2.72/UiO‐66 nanocomposites and effects of WO2.72 ratio on photocatalytic performance: judgement of the optimal content and mechanism study

“…Furthermore, the lone pair electrons of –OH and –COOH of the UiO‐66 play an important role in the photocatalytic processs. Lone pairs of electrons of –OH and –COOH groups not only repel excited electrons but also draw photogenerated holes, which lowers the electron–hole recombination rate . Thus, the excited electrons can be effectively used to obtain more •O 2 − , which increases the photodegradation rate.…”

“…This work is the first to load WO 2.72 nanomaterials on the surface of UiO‐66 via a simple solvothermal method due to the chemical stability, porous structure, high specific surface areas and regulatable size of the UiO‐66 . The WO 2.72 nanorods are very small with diameter 4–8 nm, which can be easily and uniformly loaded on the surface of octahedral UiO‐66 of size hundreds of nanometers, and thereby help to avoid agglomeration of these nanorods.…”

Visible light driven photocatalytic hydrogen evolution over CdS incorporated mesoporous silica derived from MCM-48

“…The nano-carbon materials acted as electron collectors and transfer channels because of the well-known delocalized conjugated structure. Semiconductor heterojunctions such as CdS/TiO 2 , CdS/ZnO, CdS/ZnS, and CdS/C 3 N 4 have been widely reported in photocatalysis due to the promoted separation of photo-generated charges at the interface [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. In addition, microporous and mesoporous silica could be used as support for dispersing CdS quantum dots [57][58][59][60][61][62][63][64][65][66][67][68].…”