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首页> 外文期刊>Applied Surface Science >Photostable core-shell CdS/ZIF-8 composite for enhanced photocatalytic reduction of CO_2
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Photostable core-shell CdS/ZIF-8 composite for enhanced photocatalytic reduction of CO_2

机译：光稳定核壳CdS / ZIF-8复合材料，用于增强光催化还原CO_2

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Photocatalytic conversion of CO2 is recognized as a promising method to reduce CO2 emission and produce available chemical energy simultaneously. CdS-based photocatalysts have been intensively studied for CO2 reduction, due to their excellent optical response and suitable band structures. However, the photocorrosion of CdS seriously restricts their application. To reduce the photocorrosion, CdS/ZIF-8 composites with core-shell structures are prepared. The experimental results show that the modification of ZIF-8 shell can not only improve the photostability of CdS, but also enhance its CO2 adsorption capacity without impairing its light harvesting ability. CdS/ZIF-8 catalyst shows higher efficiency and better selectivity than that of unmodified CdS in photocatalytic reduction of CO2 to CO, which is attributed to its higher CO2 adsorption capability. Moreover, CdS/ ZIF-8 composites exhibit high photostability.
机译：光催化转化CO2被认为是减少CO2排放并同时产生可用化学能的有前途的方法。基于CdS的光催化剂由于其出色的光学响应和合适的能带结构，已为减少CO2进行了深入研究。但是，CdS的光腐蚀严重限制了它们的应用。为了减少光腐蚀，制备了具有核-壳结构的CdS / ZIF-8复合材料。实验结果表明，对ZIF-8壳的改性不仅可以提高CdS的光稳定性，而且可以提高其对CO2的吸附能力，而不会损害其光捕获能力。 CdS / ZIF-8催化剂在光催化还原CO2为CO方面比未改性的CdS具有更高的效率和更好的选择性，这归因于其更高的CO2吸附能力。此外，CdS / ZIF-8复合材料具有很高的光稳定性。

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