A series of zinc oxide (ZnO) nanorods arrays with different morphologies are synthesized on stainless steel mesh via a facile electrodeposition method. The influences of electrodeposition parameters on the diameter, length, density and morphology of obtained ZnO nanorods are investigated systematically. The results indicate that the electrodeposition potential is the key factor for the morphology of the obtained ZnO nanorods, which further showed the effect on the photocatalytic property of the obtained samples. Meanwhile, the prepared ZnO nanorods array exhibits an excellent photocatalytic activity for methylene blue (MB) in ultraviolet light. The degradation efficiency for MB solution reaches 95.1% under the irradiation of ultraviolet light for 120 min. In addition, the photocatalytic property of the prepared ZnO nanorods can be extended to the visible light region after the modified with graphene oxide (GO). The obtained GO/ZnO composite also shows remarkable photocatalytic activity and photostability. The photodegradation efficiency for MB is 83.6%, and the catalytic performance retains 97.3% of its initial photocatalytic activity after five cycles.

通过简便的电沉积方法在不锈钢网上合成了一系列不同形态的氧化锌（ZnO）纳米棒阵列。系统地研究了电沉积参数对所获得的ZnO纳米棒的直径，长度，密度和形貌的影响。结果表明，电沉积电势是获得的ZnO纳米棒形态的关键因素，进一步显示了对获得的样品的光催化性能的影响。同时，制备的ZnO纳米棒阵列在紫外光下对亚甲基蓝（MB）表现出优异的光催化活性。在紫外光照射120分钟下，MB溶液的降解效率达到95.1％。此外，经氧化石墨烯（GO）改性后，制备的ZnO纳米棒的光催化性能可以扩展到可见光区域。所得的GO / ZnO复合材料还显示出显着的光催化活性和光稳定性。MB的光降解效率为83.6％，在五个循环后，其催化性能保留了其初始光催化活性的97.3％。