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首页> 外文会议>2011 International Conference on Materials for Renewable Energy Environment >Study on morphology and degradation performance of alachlor on TiO2 nanotube photoelectrodes prepared under different conditions
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Study on morphology and degradation performance of alachlor on TiO2 nanotube photoelectrodes prepared under different conditions

机译：不同条件下制备的甲草胺在TiO 2 纳米管光电极上的形貌和降解性能研究

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摘要

TiO2 nanotube array (TNTA) photoelectrodes were fabricated by anodization method on titanium (Ti) foil. The effects of voltage, electrolyte concentration and anodization time on the morphology and crystal structure were studied. The photocatalytic (PC) and photoelectrocatalytic (PEC) activity of TNTA was evaluated by the degradation rate of alachlor in aqueous solution. The results showed that the well-aligned TNTA, whose size of nanotube was 75∼90nm, could be obtained at 20 V, 0.5%NaF+1mol/L Na2SO4 solution after one to three hours. The TNTA photoelectrodes annealed at 823K and 120 minutes exhibited high PC activity. The applied potential has obvious effect on the degradation rate of alachlor, which arrived to 94% after 120 minutes illumination with 1.5v bias potential.
机译：通过阳极氧化法在钛（Ti）箔上制备了TiO 2 纳米管阵列（TNTA）光电极。研究了电压，电解质浓度和阳极氧化时间对形貌和晶体结构的影响。 TNTA的光催化（PC）和光电催化（PEC）活性通过水溶液中甲草胺的降解速率进行评估。结果表明，在20 V，0.5％NaF + 1mol / L Na 2 SO 4 一到三个小时后解决。在823K和120分钟退火的TNTA光电电极表现出高PC活性。施加的电势对甲草胺的降解率有明显的影响，在1.5v偏压下照射120分钟后，甲草胺的降解率为94％。

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