Efficient photoelectrocatalytic activity of TiO2/Ti anode fabricated by metalorganic chemical vapor deposition (MOCVD)

Efficient photoelectrocatalytic activity of TiO2/Ti anode fabricated by metalorganic chemical vapor deposition (MOCVD)
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金属有机化学气相沉积 (MOCVD) 制备 TiO2/Ti 阳极的高效光电催化活性

DOI:
10.1016/j.elecom.2009.02.029
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发表时间:
2009-04
期刊:
Electrochem. Commun.
影响因子:
--
通讯作者:
Zhou M. H., Ma X. J.
Zhou M. H., Ma X. J.
中科院分区:
其他
文献类型:
--
作者:
Zhou M. H., Ma X. J.

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对不同沉积温度下金属有机化学气相沉积(MOCVD)制备的纳米TiO2/Ti光阳极进行了表征,并将其应用于苯酚模型污染物的光电催化降解。 773K制备的阳极被验证为锐钛矿相,尺寸约为60nm,并取得了最好的光电催化活性,IPCE高达89%,光电转换效率峰值为8.4%。苯酚的光电催化降解符合准一级动力学,并且在五次连续运行中保持稳定的性能,证实了 MOCVD 制备的电极在有机污染物减排方面的潜在应用。
Nanosized TiO2/Ti photoanodes fabricated by metalorganic chemical vapor deposition (MOCVD) under different deposition temperatures were characterized and applied to the photoelectrocatalytic degradation of model pollutant of phenol. The anode prepared at 773K was verified in anatase phase with a size about 60nm and achieved the best photoelectrocatalytic activity, where IPCE could reach as high as 89% and the photoconversion efficiency peaked at 8.4%. The photoelectrocatalytic degradation of phenol was found well fit a pseudo-first-order kinetics, and kept stable performance in five continuous runs, confirming potential application of the electrode prepared by MOCVD for organic pollutants abatement.
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