Abstract
Composition-tunable ZnXCd1−XS–graphene ternary composites were synthesized via a one-step hydrothermal method with cadmium acetate as cadmium precursor, zinc acetate as zinc precursor, thiourea as sulfur precursors and graphene oxide as support. The molar ratio of Zn and Cd in the composites was controlled by adjusting the relative amounts of the starting materials, and the products were characterized by X-ray diffraction and scanning electron microscope. The photoelectric properties of ZnXCd1−XS–graphene composites with different Zn/Cd ratios were evaluated by transient photocurrent response and three-electrode cyclic voltammetry, and the results show that the photocurrent density and the specific electrochemical capacitance of ZnXCd1−XS–graphene increase gradually with the increase of the Zn/Cd ratio and reach the maximum at the Zn/Cd radio of 0.8:0.2.
Published Version
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