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电化学  2014 

Ti基ZnO纳米棒阵列的制备及其光催化性能研究

DOI: 10.13208/j.electrochem.130910, PP. 288-292

Keywords: ZnO纳米棒阵列,恒电流电沉积,Ti基底,光催化,甲基橙

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Abstract:

采用两电极体系中恒电流电沉积在Ti基底上制得较均一的ZnO纳米棒阵列,利用SEM和XRD观察表征样品,研究Zn(NO3)2浓度及电流密度对ZnO纳米棒阵列微观形貌的影响.以甲基橙为目标降解物,考察该电极光催化性能.结果表明,Zn(NO3)2浓度和电流密度对纳米棒阵列的形貌有显著影响;与ITO玻璃等其他基底相比,在Ti基底上也可沉积较好均一取向的ZnO纳米棒阵列;紫外灯照射下,ZnO/Ti电极对甲基橙(10mg·L-1)模拟印染废水降解2.5h,降解率达到83.3%,光催化活性较佳;无光照时ZnO纳米棒的降解率仅7%.

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