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Nanostructured Gold/Bismutite Hybrid Heterocatalysts for Plasmon-Enhanced Photosynthesis of Ammonia
ACS Sustainable Chemistry & Engineering ( IF 8.4 ) Pub Date : 2017-10-10 00:00:00 , DOI: 10.1021/acssuschemeng.7b02788
Changlong Xiao 1 , Hong Hu 1, 2 , Xinyi Zhang 1 , Douglas R. MacFarlane 1
Affiliation  

Nitrogen (N2) reduction to produce ammonia (NH3) is one of the most important chemical processes globally. Nowadays, the Haber–Bosch process is the main industrial procedure for artificial N2 fixation, which requires extremely harsh synthetic conditions and large energy consumption resulting in massive emission of greenhouse gas. Hence, an alternative photosynthesis of NH3 under mild condition, which is sustainable and less energy consuming, would be highly desirable. In this study, Au nanoparticles modified (BiO)2CO3 nanodisks were fabricated through a facile hydrothermal method followed by chemical bath deposition and investigated for the photocatalytic reduction of N2 in a pure water system at atmospheric pressure and room temperature. The induction of Au nanoparticles can dramatically enhance the light trapping as well as charge separation in the Au/(BiO)2CO3 hybrid, thereby promoting overall energy conversion efficiency. The synergetic effect of the nanostructured gold/bismutite hybrid results in high catalytic activity and exhibits high performance for artificial photosynthesis of ammonia.

中文翻译:

纳米结构的金/铋矾杂化杂化催化剂用于等离子体增强氨的光合作用

还原氮(N 2)以产生氨(NH 3)是全球最重要的化学过程之一。如今,哈柏法是人工n中的主要的工业过程2固定,这需要极其苛刻的合成条件和大的能量消耗导致的温室气体的排放大量。因此,非常需要在温和条件下可持续且消耗较少能量的NH 3的替代光合作用。在这项研究中,金纳米粒子改性的(BiO)2 CO 3纳米磁盘通过一种简便的水热方法,然后化学浴沉积,并进行了光催化还原N的研究。2在纯水系统中于大气压和室温下使用。Au纳米颗粒的诱导可以显着增强Au /(BiO)2 CO 3杂化物中的光俘获以及电荷分离,从而提高整体能量转换效率。纳米结构的金/双亚硫酸盐杂化物的协同作用导致高催化活性,并表现出对氨的光合作用的高性能。
更新日期:2017-10-10
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