Enhanced photocatalytic hydrogen evolution over bimetallic zeolite imidazole framework-encapsulated CdS nanorods

Abstract

Through doping the Zn ion with the transition metal, this work fabricated the bimetallic ZnM-ZIF (M = Ni, Cu, Co) encapsulated CdS nanorod heterostructure for the first time.

Bimetallic zeolite-imidazole framework-based heterostructure with enhanced photocatalytic hydrogen production activity

“…Hence, various Zr, Ti, Cr-based MOFs with and without Pt, small molecular and even polyoxometalates (POMs) have been extensively investigated as photocatalyst for hydrogen production. 25,26,30,31 As one of the most stable metal organic frameworks in neutral and alkaline solutions, 26,32,33 Zeolite Imidazole Frameworks (ZIFs) and its heterostructure has been extensively studied for the photocatalytic reaction. 33,34 Especially, the bimetallic ZIFs has been widely investigated because it possesses various structures, has versatile functions and its photo-electric properties.…”

“…As one of the most stable metal organic frameworks in neutral and alkaline solutions, 26,32,33 Zeolite Imidazole Frameworks (ZIFs) and its heterostructure has been extensively studied for the photocatalytic reaction. 33,34 Especially, the bimetallic ZIFs has been widely investigated because it possesses various structures, has versatile functions and its photo-electric properties. Moreover, the bimetallic ZIF derived nanomaterials have been fabricated and used in the electrocatalytic energy conversion and storage.…”

Recycling Rusty Iron with Natural Zeolite Heulandite to Create a Unique Nanocatalyst for Green Hydrogen Production

“…In the past few years, zeolite was used as a support for semiconductor-based PEC catalysts to enhance the hydrogen production rate. The ZnCo/CdS/zeolite heterostructure was prepared and optimized by Jia-Hui et al to achieve photocatalytic hydrogen activity 59 times greater than that of pristine CdS, which is ascribed to zeolite's role in improving the separation and transportation capacity of photo-generated charge carriers [14]. Yue and Khan reported the formation of vacant sites on the zeolite surface due to the exchange of ions in titano-zeolites, which assists the hydrogen photoproduction [15].…”

Noble‐metal‐free MOF Derived ZnS/CeO2 Decorated with CuS Cocatalyst Photocatalyst with Efficient Photocatalytic Hydrogen Production Character

“…[21] ZIF-8 (Zeolitic imidazolate framework-8) with the regular dodecahedron structure is the most common Zn-containing MOF material which has demonstrated its potentials in the fabrication of functional nanocomposites for a wide variety of applications such as CO 2 absorption and photocatalytic hydrogen production, etc. [22][23][24] ZnS only responds to UV light (~4 % of the solar spectrum) due to its wide band gap (3.6-3.8 eV) which is one of the main restrictions in its actual applications and the most key barrier to further improve photocatalytic efficiency, [25][26] and it is still a challenging to obtain the more high photocatalytic efficiency. In order to solve the problem, the numerous attempts have been made to extend the light absorption of ZnS into the visible light region for photocatalytic H 2 evolution, such as doping [27] and coupling with narrow bandgap semiconductors.…”

“…Especially, the porous materials derived from MOFs precursor have arose considerable interest in many applications which retain the original structural characteristics of MOFs, and obtain the porous structures with the large specific surface area and the more active sites [21] . ZIF‐8 (Zeolitic imidazolate framework‐8) with the regular dodecahedron structure is the most common Zn‐containing MOF material which has demonstrated its potentials in the fabrication of functional nanocomposites for a wide variety of applications such as CO 2 absorption and photocatalytic hydrogen production, etc [22–24] …”