2023
DOI: 10.1002/slct.202203227
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Enhanced Photocatalytic Performance of a ZnO/CdS Heterostructure for Hydrogen Production and Mixed Dye Degradation

Abstract: ZnO/CdS composite was prepared using a simple one‐step hydrothermal method, and its photocatalytic performance was investigated under different conditions. The photocatalytic efficiency of ZnO/CdS was 6345.04 μmol ⋅ g−1 ⋅ h−1 in H2 production from water splitting using Na2S and Na2SO3 as sacrificial agents. The photocatalytic efficiency of eosin Y‐sensitized ZnO/CdS was 6939.39 μmol ⋅ g−1 ⋅ h−1 when triethanolamine was used as a sacrificial agent. The photocatalytic activity of ZnO/CdS was better than those of… Show more

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Cited by 10 publications
(4 citation statements)
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“…Herein, X is the pure electronegativity of the semiconductor, E H is the hydrogen-scale energy of free electrons (%4.5 eV), E CB shows the energy of conduction band, E g is the energy of the bandgap, and E VB represents the valance band potential. [64] The X value for MoO 3 is 6.4 eV, as reported earlier [65] The estimated position potentials for valance band and conduction value of 2-CMO are 3.16 and 0.64 eV, respectively. The model proposed for photocatalytic reduction of rhodamine B dye by Ce-doped MoO 3 in the presence of visible light is depicted in the Figure 8.…”
Section: Photocatalytic Degradation Mechanismsupporting
confidence: 73%
“…Herein, X is the pure electronegativity of the semiconductor, E H is the hydrogen-scale energy of free electrons (%4.5 eV), E CB shows the energy of conduction band, E g is the energy of the bandgap, and E VB represents the valance band potential. [64] The X value for MoO 3 is 6.4 eV, as reported earlier [65] The estimated position potentials for valance band and conduction value of 2-CMO are 3.16 and 0.64 eV, respectively. The model proposed for photocatalytic reduction of rhodamine B dye by Ce-doped MoO 3 in the presence of visible light is depicted in the Figure 8.…”
Section: Photocatalytic Degradation Mechanismsupporting
confidence: 73%
“…Among them, CdS is a common visible light-responsive photocatalyst. According to literature reports, 20,21 the lattice structure of CdS is similar to ZnO, if ZnO and CdS are effectively combined, the two can form close contact heterojunction, which can reduce the probability of electron-hole pair recombination, thereby improving the catalytic performance. In the CdS/ZnO composite, since the conduction band (CB) position of CdS is higher than that of ZnO, the free electrons in CdS spontaneously diffuse into ZnO until their Fermi levels reach equilibrium.…”
Section: Introductionmentioning
confidence: 99%
“…Hence, it is an urgent and significant task to explore and develop efficient, low‐cost and environmentally friendly technologies to completely remove RhB from the water environment. Therefore, researchers have tried to use a variety of chemical, physical and biological methods to remove RhB from wastewater in recent years [3] . Among them, the photocatalytic oxidation method has attracted widespread attention because of its outstanding advantages such as mild reaction conditions, small secondary pollution, high efficiency and high reusability performance [4,5] …”
Section: Introductionmentioning
confidence: 99%
“…Therefore, researchers have tried to use a variety of chemical, physical and biological methods to remove RhB from wastewater in recent years. [3] Among them, the photocatalytic oxidation method has attracted widespread attention because of its outstanding advantages such as mild reaction conditions, small secondary pollution, high efficiency and high reusability performance. [4,5] BiOX (X = Cl, Br, I) materials have generated considerable interest in the direction of photocatalysis attributed to their excellent chemical stability, characteristic band structure and multiple morphologies.…”
Section: Introductionmentioning
confidence: 99%