Fabrication of the hetero structured CsTaWO6/Au/g-C3N4 hybrid photocatalyst with enhanced performance of photocatalytic hydrogen production from water

作者：Lang, Junyu; Liu, Mengqing; Su, Yiguo; Yan, Lijuan; Wang, Xiaojing^*

来源：Applied Surface Science, 2015, 358: 252-260.

DOI：10.1016/j.apsusc.2015.08.150

• CsTaWO6
• g-C3N4
• Gold
• Photocatalysis
• Water splittinga

In this work, a novel CsTaWO6/Au/g-C3N4 hybrid photocatalyst is successfully fabricated. The photocatalytic performance of the heterostructured CsTaWO6/Au/g-C3N composite was investigated. Au nanoparticles were photo-deposited as the interlayer between g-C3N4 and the surface of CsTaWO6, which can facilitate the photoinduced electrons migration as an electron-conduction bridge as well as increase visible-light absorption via the surface plasmon resonance. This heterostructured interface bridging by Au particles may significantly retard the recombination of electron-holes, which is beneficial to promote the photocatalytic activity under visible-light irradiation. It is found the CsTaWO6/Au/g-C3N sample showed excellent photocatalytic activity of water splitting, even higher than the sum of g-C3N4 and Au/C5TaWO6 samples, or the sum of CsTaWO6 and Au/g-C3N4 samples. It indicates that the heterostructured combination of g-(CN4)-N-3 and CsTaWO6 bridging by Au particles provided the synergistic photocatalytic activity driving by solar light through an efficient electron transfer process.

• 出版日期2015-12-15
• 单位内蒙古大学