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UV and Visible Light Induced Photocatalytic Degradation on p–n Cu2O/ZnO Nanowires Decorated with Au–Pd Alloy Nanoparticles
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2019-01-28 , DOI: 10.1002/admi.201801744
Cheng‐Liang Hsu,Yen‐Cheng Chuo,Liang‐Wei Hsu,Yen‐Liang Pan,Yi‐Hung Liu
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2019-01-28 , DOI: 10.1002/admi.201801744
Cheng‐Liang Hsu,Yen‐Cheng Chuo,Liang‐Wei Hsu,Yen‐Liang Pan,Yi‐Hung Liu
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Chemical solutions are applied to synthesize Au–Pd alloy nanoparticles (NPs) and ZnO/Cu2O core–shell nanowires (NWs) on ITO/glass substrates by the photochemical, electrochemistry, and hydrothermal methods. The Cu2O cubic structures and ZnO hexagonal wurtzite structures are verified as being polycrystalline and single crystalline, respectively, by X‐ray diffraction and high‐resolution transmission electron microscopy (HR‐TEM). The p‐Cu2O/n‐ZnO NWs samples exhibit rectification properties that confirm the p–n heterojunction interface. The diameter range of the Au–Pd alloy NPs is around 2–15 nm and the Au/Pd ratio is 27:28, according to HR‐TEM and X‐ray photoelectron spectroscopy. The p‐Cu2O/n‐ZnO core–shell NWs feature higher UV photocatalytic degradation of methylene blue than do the ZnO NWs. Deposited Au, Pd, Au–Pd alloy NPs on the p‐Cu2O/n‐ZnO core–shell NWs improve the photocatalytic degradation efficiency under UV and blue light. The Au–Pd alloy NPs/p‐Cu2O/n‐ZnO core–shell NWs offer the best photocatalytic properties under UV‐ and blue‐light‐emitting diode (LED) illumination.
中文翻译:
紫外线和可见光诱导的Au-Pd合金纳米粒子修饰的p–n Cu2O / ZnO纳米线上的光催化降解
通过光化学,电化学和水热方法,化学溶液被用于在ITO /玻璃基板上合成Au-Pd合金纳米颗粒(NPs)和ZnO / Cu 2 O核壳纳米线(NWs)。X射线衍射和高分辨率透射电子显微镜(HR-TEM)分别证明了Cu 2 O立方结构和ZnO六方纤锌矿结构为多晶和单晶。p-Cu 2 O / n-ZnO NWs样品的整流特性证实了p-n异质结界面。根据HR-TEM和X射线光电子能谱,Au-Pd合金NP的直径范围约为2-15 nm,Au / Pd之比为27:28。p‐Cu 2O / n-ZnO核壳型NWs比ZnO NWs具有更高的UV光催化降解亚甲基蓝的能力。在p-Cu 2 O / n-ZnO核-壳NW上沉积Au,Pd,Au-Pd合金NPs可以提高在紫外线和蓝光下的光催化降解效率。Au-Pd合金NPs / p-Cu 2 O / n-ZnO核壳型NW在紫外和蓝光发光二极管(LED)照射下具有最佳的光催化性能。
更新日期:2019-01-28
中文翻译:
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紫外线和可见光诱导的Au-Pd合金纳米粒子修饰的p–n Cu2O / ZnO纳米线上的光催化降解
通过光化学,电化学和水热方法,化学溶液被用于在ITO /玻璃基板上合成Au-Pd合金纳米颗粒(NPs)和ZnO / Cu 2 O核壳纳米线(NWs)。X射线衍射和高分辨率透射电子显微镜(HR-TEM)分别证明了Cu 2 O立方结构和ZnO六方纤锌矿结构为多晶和单晶。p-Cu 2 O / n-ZnO NWs样品的整流特性证实了p-n异质结界面。根据HR-TEM和X射线光电子能谱,Au-Pd合金NP的直径范围约为2-15 nm,Au / Pd之比为27:28。p‐Cu 2O / n-ZnO核壳型NWs比ZnO NWs具有更高的UV光催化降解亚甲基蓝的能力。在p-Cu 2 O / n-ZnO核-壳NW上沉积Au,Pd,Au-Pd合金NPs可以提高在紫外线和蓝光下的光催化降解效率。Au-Pd合金NPs / p-Cu 2 O / n-ZnO核壳型NW在紫外和蓝光发光二极管(LED)照射下具有最佳的光催化性能。