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• W4212852437 abstract "Metal selenide semiconductors in photocatalysis are limited, owing to their low activity and poor stability. Herein, a facile one‐pot solution approach is developed to prepare particulate Zn x Cd 1− x Se solid solutions with tunable energy band structures. X‐ray diffractometer (XRD) patterns demonstrate that the crystal structure of the samples are not changed. The analysis of UV–vis and the photoluminescence spectra exhibits that the bandgap of Zn x Cd 1− x Se photocatalysts utilizing oleylamine as an organic template can be accurately controlled, which gradually becomes wider from 1.60 to 2.70 eV with increasing Zn/Cd molar ratio. Under visible‐light irradiation, the optimal Zn 0.5 Cd 0.5 Se without any cocatalyst exhibits a superior photocatalytic H 2 generation rate (438.3 μmol h −1 g −1 ), exceeding that of pristine CdSe and ZnSe by more than 12 and 17 times, an apparent quantum yield of 1.7% at 420 nm and excellent stability. The results are on account of the balance between the bandgap width and the conduction band (CB) potential of Zn 0.5 Cd 0.5 Se, implying the excitation of more photogenerated electrons and faster charge carrier separation efficiency, which could be substantiated by the transient photocurrent response and electrochemical impedance spectroscopy. Therefore, this work provides a straightforward strategy to synthesize metal selenide for diverse photocatalytic applications." @default.
• W4212852437 created "2022-02-24" @default.
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• W4212852437 date "2022-02-15" @default.
• W4212852437 modified "2023-09-30" @default.
• W4212852437 title "Tunable Bandgap Engineering of Zn_<i>x</i>Cd_1−<i>x</i>Se Solid Solution with Controlled Ratio via a Facile One‐Pot Synthesis for Visible‐Light Photocatalytic H₂ Production" @default.
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• W4212852437 doi "https://doi.org/10.1002/aesr.202100210" @default.
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