Defective Y2O3−x–driven anomalous photocatalytic enhancement using Y2O3−x–TiO2−x nanorod composite composition spreads

Neon Vicente Bacarro Rosell, Yen Ting Chen, Kao Shuo Chang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

Synergistic photocatalysis is reported, using the optimal amounts of oxygen vacancies of high-k materials and nanoarchitecture maneuvering by employing a combinatorial sputtering approach. The highlights include (i) the successful fabrication of samples using combinatorial sputtering; (ii) a systematic investigation of the coupling effect between Y2O3−x and TiO2−x; (iii) elucidating charge carrier transport through current-voltage (I-V) and capacitance-voltage (C-V) characterizations; and (iv) providing an alternative application for high-dielectric constant (high-k) materials in photocatalysis. The simple yet effective composition spread technique rapidly determined that Sample 6 (4 at% Y2O3−x-96 at% TiO2−x, TiO2−x-rich on the Y2O3−x–TiO2−x nanorod composite composition spread) exhibited the highest photocatalytic efficiency (i.e., approximately 3.4 times and 1.4 times higher than that of P25 and pure TiO2−x nanorods, respectively). The predominant factor was determined to be electron migration along defective Y2O3−x nanorods to the sample surface. The extracted mobility was discovered to be an order of magnitude greater than that of pure TiO2−x. The photoelectrochemical stability and reusability were also demonstrated.

原文English
頁(從 - 到)5548-5560
頁數13
期刊Journal of the American Ceramic Society
100
發行號12
DOIs
出版狀態Published - 2017 十二月

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 材料化學

指紋

深入研究「Defective Y<sub>2</sub>O<sub>3−x</sub>–driven anomalous photocatalytic enhancement using Y<sub>2</sub>O<sub>3−x</sub>–TiO<sub>2−x</sub> nanorod composite composition spreads」主題。共同形成了獨特的指紋。

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