Gold/Titania Nanorod Assembled Urchin-Like Photocatalysts with an Enhanced Hydrogen Generation by Photocatalytic Biomass Reforming

Cai Shi, Weijie Yuan, Keqi Qu, Junming Shi, Malin Eqi, Xushen Tan, Zhanhua Huang, Felipe Gándara, Duo Pan, Nithesh Naik, Yixiang Zhang, Zhanhu Guo

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Herein, we successfully constructed Au/hierarchical urchin-like TiO2 architectures (Au/HT) photocatalysts, which were assembled by crystalline nanorods by one-step solvothermal method under mild conditions. The as-prepared samples showed an outstandingly renewable H2 evolution by the photocatalytic glucose reforming. Au/HT revealed a high H2 evolution rate of 616.23 μmol h-1 g-1 under visible-light irradiation at low temperatures without any additional Pt co-catalyst, which was about 46.23 and 15.81 times than that of P25 and HT, since the (one-dimensional) 1D nanorods could effectively accelerate electron transfer and restrain the recombination of photogenerated carriers, meanwhile, (three-dimensional) 3D hierarchical architectures could improve the light capturing capability of HT, and surface-plasmon resonance (SPR) effect of Au nanoparticles, which further improved the separation efficiency of photogenerated charges, extended the visible light absorption, and accelerated the H2 generation. This work offers a potential way to produce sustainable H2 from environmentally renewable biomass materials using solar energy.

Original languageEnglish
Pages (from-to)374-388
Number of pages15
JournalEngineered Science
Volume16
DOIs
Publication statusPublished - 2021

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry
  • Chemistry (miscellaneous)
  • Materials Science(all)
  • Energy Engineering and Power Technology
  • Artificial Intelligence
  • Applied Mathematics

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