负载ZnO和ZnTCPP的P掺杂石墨相氮化碳中II型和Z型结合结构的构建促进光催化析氢
Construction of II-type and Z-scheme binding structure in P-doped graphitic carbon nitride loaded with ZnO and ZnTCPP boosting photocatalytic hydrogen evolution.
作者信息
Xu Xuan, Feng Xiangbo, Wang Wei, Song Kunli, Ma Dandan, Zhou Yixuan, Shi Jian-Wen
机构信息
Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi'an 710123, Shaanxi, China; State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi'an 710123, Shaanxi, China.
出版信息
J Colloid Interface Sci. 2023 Dec;651:669-677. doi: 10.1016/j.jcis.2023.08.033. Epub 2023 Aug 6.
A ternary heterostructure (ZnPPO) was constructed by loading ZnO and tetrakis (4-carboxyphenyl) zinc porphyrin (ZnTCPP) with P-doped g-CN (PCN). In contrast to binary heterostructures (PCN-ZnO, ZnTCPP-ZnO and ZnTCPP-PCN) and single components (PCN, ZnTCPP and ZnO), ZnPPO has superior photocatalytic activity for H generation from water splitting. It is revealed that a binding structure of Ⅱ-type and Z-scheme has been constructed in ZnPPO, which plays a vital role in transferring photo-excited charge carriers. The significant enhancement of photocatalytic activity in ZnPPO is attributed to the effective transfer of photo-generated electrons and holes between the components of the ternary heterostructure.
通过将氧化锌（ZnO）和四（4-羧基苯基）锌卟啉（ZnTCPP）负载到磷掺杂的石墨相氮化碳（PCN）上构建了三元异质结构（ZnPPO）。与二元异质结构（PCN-ZnO、ZnTCPP-ZnO和ZnTCPP-PCN）及单一组分（PCN、ZnTCPP和ZnO）相比，ZnPPO在光催化水分解产氢方面具有卓越的活性。研究表明，ZnPPO中构建了Ⅱ型和Z型的结合结构，这在光激发电荷载流子的转移中起着至关重要的作用。ZnPPO光催化活性的显著增强归因于三元异质结构各组分之间光生电子和空穴的有效转移。
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