Metal–organic framework-derived CdS–NiO heterostructures with modulated morphology and enhanced photocatalytic hydrogen evolution activity in pure water

Abstract

<p>This work reported the uniform distribution of CdS nanoparticles over the MOF-derived porous NiO skeleton. With the PVP surface modification and the residual carbon, the formation of CdS-porous NiO exhibited an excellent photocatalytic performance.</p>

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

“…The large specic surface area, caused by improved number of exposed active sites, was also an important element for the high photocatalytic activity of CNMZN, 5,54 and the nitrogen adsorption/desorption isotherms (Fig. 3c) was employed to reveal the vital function of ZnNi-ZIF on increasing the porosity of the ternary heterostructure.…”

“…The direct conversion of sustainable solar power into ecofriendly energy over high performance photocatalysts has been extremely signicant for powering human society. [1][2][3][4][5][6][7] Up to now, it is universally recognized that the serious recombination, underutilization and poor transport of photon-generated carriers weaken the photocatalytic activity of the photocatalyst. [8][9][10][11][12] Consequently, extensive efforts have been devoted to constructing heterostructures or phase junctions, which could increase the specic surface area of the photocatalyst, 2, [13][14][15][16][17][18][19][20][21] and adopting a suitable cocatalyst for improving the separation, transport and utilization of the photo-induced charge carriers.…”

Photoactive Heterostructures: How They Are Made and Explored

“…However, it wise to remember that these widely used methods provide information neither about the formation of the interface nor about the quality of the heterojunction. Chemical information obtained by electron dispersive Xray spectroscopy (EDX or EDS) allows unequivocal recognition of the heterostructure components using an element mapping that provides element distributions over both sides of the heterostructure interface [20][21][22][23].…”

“…Several major approaches have been developed to achieve these targets, such as the creation of new photoactive materials, the physical and chemical modification of the known materials to improve their functional properties, and the formation of heterostructures on the basis of known and new materials to create a desired spectral and charge transfer response in the systems [7][8][9][10][11][12][13][14][15][16][17][18]. In recent years significant progress in the development of photoactive materials has been demonstrated in studies devoted to the design, characterization, exploration and application of various heterostructured materials [19][20][21][22][23][24]. In our review we consider the results of the development and exploration of heterostructured photoactive materials, with major attention focused on which are the better ways to form these materials and how to explore them correctly.…”

NiO Nanosheets Coupled With CdS Nanorods as 2D/1D Heterojunction for Improved Photocatalytic Hydrogen Evolution

“…Nickel oxide (NiO), as a low-cost and earth-abundant p-type semiconductor, has attracted significant attention in the field of photocatalysis, including photocatalytic degradation (Ahmad et al, 2018;Sabzehmeidani et al, 2018), photocatalytic CO 2 reduction (Chen et al, 2018), and photocatalytic hydrogen evolution (Shi et al, 2019;Lin et al, 2020). However, many previous studies mainly focused on the NiO nanoparticles; the 2D sheet-like NiO nanosheets for photocatalytic application were seldom discussed.…”