Metal–organic framework-derived porous carbon-mediated ZnO–nano-ZnO core–shell structure with excellent photocatalytic activity

Abstract

Considering the large specific surface area, abundant active sites, and good electrical conductivity of metal-organic frameworks(MOFs)-derived porous carbon materials, rational design and fabrication of high-performance composite photocatalyst with tunable morphology...

A review of metal–organic framework (MOF) materials as an effective photocatalyst for degradation of organic pollutants

“…39 This figure has been adapted from ref. 39 with permission from Royal Society of Chemistry, copyright 2023.…”

“…174 Another approach is employing core–shell MOFs, combining two different MOF structures to tackle significant challenges. 39 Zhou et al derived a core–shell structure based on ZnO nanomaterial and ZIF-8. The carbonization of the material follows the initial synthesis of ZnO-ZIF-8 to obtain a carbon material.…”

“…The pyrolysis process increased its surface area and facilitated the transport of charged species. 39 The ZnO-nZnO@PC composite was then employed as a photocatalyst for the degradation of the MB under UV-visible light. The catalytic activity of the composite varied with different thicknesses of the carbon layer coated with ZnO.…”

“…This combination offers several advantages: (i) POMs exhibit brilliant photosensitivity comparable to semiconductors like TiO 2 ; (ii) the integration of POMs with MOFs enhances material stability in aqueous environments, enabling reusability and reducing the generation of secondary pollutants; (iii) POM-based MOFs provide a versatile platform for designing various hybrid structures and activating catalysts for the degradation of organic dyes. [38][39][40][41][42] Hence, this review aims to explore the current literature on MOFs and POMbased MOF composite photocatalysts for the degradation of organic pollutants under UV and visible light. Lastly, several theoretical analysis approaches such as machine learning (ML) and Kohn-Sham DFT have also been discussed in detail for achieving ultimate photocatalysis performance.…”

Enhancement of the photocatalytic activity of the NiO-porous NiO homojunction derived from the in situ templated metal–organic framework

“…[18][19][20] Both MOFs and their templated porous nanomaterials, including sulfide, metal, oxidate, phosphide, have been extensively investigated for the photocatalytic applications owing to the increased active sites and promoted mass transfer and transport efficiency of the charge carriers. 5,16,17,21,22 Notably, ZnO and BrOBi have been adopted as templates for the fabrication of MOFs and MOF derivatives. 17,23 Moreover, through the careful control of the reaction parameters, the template would be partially converted into MOFs (e.g., ZnO-ZIF-8), and the semiconductor-MOFs would be fabricated, which could be transformed into a semiconductor-MOF derivative (ZnO-nano-ZnO@porous carbon).…”