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首页> 外文期刊>RSC Advances >Preparation and characterization of SrTiO3-ZnTe nanocomposites for the visible-light photoconversion of carbon dioxide to methane
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Preparation and characterization of SrTiO3-ZnTe nanocomposites for the visible-light photoconversion of carbon dioxide to methane

机译：SrTiO3-ZnTe纳米复合材料的制备和表征，用于二氧化碳的可见光光转化为甲烷

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Limited fossil fuel resources and increasingly stringent requirement of environmental protection from major greenhouse gases, including carbon dioxide (CO2), which results directly from the burning of fossil fuels, energy savings and greenhouse-effect alleviation have emerged as major global concerns. The development of an "a rtificial photosynthetic system" (APS) having both the analogous important structural elements and the reaction features of photosynthesis to achieve solar-driven water splitting and CO2 reduction is highly challenging. Herein, it has been demonstrated that SrTiO3-ZnTe can be utilized as an efficient APS for the photoreduction of CO2 into methane (CH4) under visible-light irradiation (>= 420 nm). The results indicate that the combination of ZnTe with SrTiO3 visibly increases the formation of CH4 by efficiently promoting electron transfer from the conduction band of ZnTe to that of SrTiO3 under visible-light irradiation, and thereby demonstrate this to be a promising candidate for the photocatalytic conversion of CO2 into hydrocarbon fuels.
机译：化石燃料资源有限以及对主要温室气体（包括二氧化碳）的环境保护要求日益严格，这直接来自化石燃料的燃烧，节能和温室效应的缓解已成为全球关注的主要问题。具有类似的重要结构元素和光合作用的反应特征以实现太阳能驱动的水分解和减少CO 2的“人工光合作用系统”（APS）的开发是非常具有挑战性的。在此，已经证明SrTiO3-ZnTe可以用作在可见光（＞ ＝ 420nm）下将CO 2光还原为甲烷（CH 4）的有效APS。结果表明，ZnTe与SrTiO3的结合通过在可见光照射下有效地促进电子从ZnTe的导带向SrTiO3的导带转移而明显增加CH4的形成，从而证明这是光催化转化的有希望的候选者。将二氧化碳转化为碳氢燃料。

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