Rutile TiO2 Nanoparticles with Oxygen Vacancy for Photocatalytic Nitrogen Fixation,ACS Applied Nano Materials

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Rutile TiO2 Nanoparticles with Oxygen Vacancy for Photocatalytic Nitrogen Fixation
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2021-09-15 , DOI: 10.1021/acsanm.1c02184
Qing-Yu Liu ₁ , Hao-Dong Wang ₁ , Rui Tang ₁ , Quan Cheng ₁ , Yong-Jun Yuan ₁

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Limited by the relatively low specific surface area and small quantity of active sites of semiconductor photocatalysts, the photocatalytic nitrogen fixation performance remains very low, as expected. Herein, rutile titanium dioxide (TiO₂) nanoparticles with large specific surface area and abundant oxygen vacancy were designed for photocatalytic nitrogen fixation. The TiO₂ photocatalysts exhibit high photocatalytic performance for nitrogen fixation in the presence of methanol as the hole scavenger, with the highest ammonia generation rate of 116 μmol·g^–1·h^–1, exceeding 6.5 times that of P25. This study provides a simple and facile method to prepare highly reactive TiO₂ photocatalysts for enhanced photocatalytic nitrogen fixation performance.

中文翻译：

用于光催化固氮的具有氧空位的金红石 TiO2 纳米颗粒

受半导体光催化剂相对较低的比表面积和少量活性位点的限制，光催化固氮性能仍然很低，正如预期的那样。在此，设计了具有大比表面积和丰富氧空位的金红石二氧化钛（TiO ₂）纳米颗粒用于光催化固氮。TiO ₂光催化剂在甲醇作为空穴清除剂的情况下表现出很高的固氮光催化性能，最高氨生成率为116 μmol·g ^–1 ·h ^–1，超过P25的6.5倍。本研究为制备高活性TiO ₂提供了一种简单易行的方法。用于增强光催化固氮性能的光催化剂。

更新日期：2021-09-24

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