光刻
异质结
薄膜
复合数
材料科学
可见光谱
化学浴沉积
催化作用
化学工程
沉积(地质)
纳米技术
复合薄膜
光电子学
化学
复合材料
有机化学
古生物学
沉积物
工程类
生物
作者
Xia Luo,Zongfan Duan,Yu Zhu,Jingyi Ni,Yulong Li,Jingyu Zhang,Yingrong Chen,Xianhui Wang,Gaoyang Zhao
标识
DOI:10.1016/j.materresbull.2022.111951
摘要
• Micro-patterned ZnFe 2 O 4 /Fe 3+ -TiO 2 heterojunction composite thin films were fabricated. • Micro-patterns were constructed on the ZnFe 2 O 4 layers. • Micro-patterned structure endows films with improved surface hydrophilicity. • Enhanced catalytic activity was obtained for micro-patterned ZnFe 2 O 4 /Fe 3+ -TiO 2 films. • Catalytic activity of micro-patterned films can not decline during recycling. Micro-patterned ZnFe 2 O 4 /Fe 3+ -TiO 2 (ZFO/FTO) heterojunction composite thin films were fabricated by lithography-assisted chemical solution deposition. Their hydrophilicities and photocatalytic activities were investigated in comparison to those of FTO, ZFO and un-patterned ZFO/FTO (UP-ZFO/FTO) films. All micro-patterned ZFO/FTO films present the improved hydrophilicity, and their water contact angles decline with decrease of pattern periods. These films were used to degrade methylene blue (MB) under visible-light irradiation. Their visible-light catalytic activity have been enhanced, which increase with decrease of pattern period. Under the synergistic effect of heterojunction interface and micro-pattern surface, the catalytic degradation rate of MB using a ZFO/FTO film with a pattern period of 5 μm (ZFO-5/FTO) is more than 2 times as that utilizing UP-ZFO/FTO film, and over 3 times as that of FTO film. Furthermore, ZFO-5/FTO film catalyst can be recycled, and its catalytic performance does not decrease with the number of cycles.
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