ZnIn_(2)S_(4) has emerged in water splitting and degradation of dyes due to its good stability and light absorption properties.However,there are still few reports of CO_(2) photoreduction.Herein,we successfully synthe...ZnIn_(2)S_(4) has emerged in water splitting and degradation of dyes due to its good stability and light absorption properties.However,there are still few reports of CO_(2) photoreduction.Herein,we successfully synthesized ZnIn_(2)S_(4) and obtained a series of ZnIn_(2)S_(4)-CdIn_(2)S_(4) heterostructured microspheres through the ion exchange method,and first used them in photocatalytic CO_(2) reduction in noble-metal-free systems.The activity results showed that these ZnIn_(2)S_(4)-CdIn_(2)S_(4) photocatalysts exhibit excellent catalytic activity under visible light,and the best CO yield is as high as 33.57μmol・h^(-1) with a selectivity of 91%.Furthermore,the stability and reusability of ZnIn_(2)S_(4)-CdIn_(2)S_(4) was firmly confirmed by diverse characterizations,including X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),energy-dispersive X-ray spectroscopy(EDX)and N2 adsorption measurements.展开更多
基金This work is supported by National Natural Science Foundation of China(FZUL 21876204 and 22072022)the State Key Laboratory of NBC Protection(SKLNBC2019-14 and SKLNBC2020-18).
文摘ZnIn_(2)S_(4) has emerged in water splitting and degradation of dyes due to its good stability and light absorption properties.However,there are still few reports of CO_(2) photoreduction.Herein,we successfully synthesized ZnIn_(2)S_(4) and obtained a series of ZnIn_(2)S_(4)-CdIn_(2)S_(4) heterostructured microspheres through the ion exchange method,and first used them in photocatalytic CO_(2) reduction in noble-metal-free systems.The activity results showed that these ZnIn_(2)S_(4)-CdIn_(2)S_(4) photocatalysts exhibit excellent catalytic activity under visible light,and the best CO yield is as high as 33.57μmol・h^(-1) with a selectivity of 91%.Furthermore,the stability and reusability of ZnIn_(2)S_(4)-CdIn_(2)S_(4) was firmly confirmed by diverse characterizations,including X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),energy-dispersive X-ray spectroscopy(EDX)and N2 adsorption measurements.
