Fabrication of ZnO/Au@Cu2O heterojunction towards deeply oxidative photodegradation of organic dyes
文献类型：期刊论文
| 作者 | Yuan, Xueqin; Pei, Fei; Luo, Xiaolin; Hu, Huanting; Qian, Huaming; Wen, Pin; Miao, Kangkang; Guo, Sifan; Wang, Wei; Feng, Guodong |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 262 |
| 英文摘要 | Fabrication of heterojunction is an effective way of improving the photocatalytic performance of semiconductor in the photocatalytic wastewater treatment. ZnO/Au@Cu2O heterojunctions were successfully synthesised using Au nanoparticles loaded onto the surface of ZnO nanorods as heterostructural seeds to induce in situ growth of Cu2O shells. X-ray diffraction, transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, electrochemical workstation and UV-vis diffuse reflection spectrograph were employed to analyze the structures, compositions and photoelectric properties of the synthesised photocatalysts. After 45-90 min of the photocatalysis of ZnO/Au@Cu2O heterojunctions under simulated sunlight, the degradation efficiencies of methyl orange and rhodamine B could reach 93.0% and 99.6%, respectively, which were much higher than those with mono- and bi-component catalysts. The photocatalytic system with ZnO/Au@Cu2O can achieve deep mineralization to decompose organic dye molecules into non-toxic products. The formation of heterostructures not only could expand the spectral absorption range to the visible region but also efficiently facilitate charge separation to transfer more photo-generated holes and electrons to generate oxidative hydroxyl and superoxide radicals. A Z-scheme charge separation mechanism was proposed according to the determination of radical species and energy band structures of ZnO-Cu2O. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21971]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Luo, XL 2.Feng, GD (corresponding author), Baoji Univ Arts & Sci, Coll Chem & Chem Engn, Key Lab Adv Mol Engn Mat, Baoji 721013, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yuan, Xueqin,Pei, Fei,Luo, Xiaolin,et al. Fabrication of ZnO/Au@Cu2O heterojunction towards deeply oxidative photodegradation of organic dyes[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,262. |
| APA | Yuan, Xueqin.,Pei, Fei.,Luo, Xiaolin.,Hu, Huanting.,Qian, Huaming.,...&Feng, Guodong.(2021).Fabrication of ZnO/Au@Cu2O heterojunction towards deeply oxidative photodegradation of organic dyes.SEPARATION AND PURIFICATION TECHNOLOGY,262. |
| MLA | Yuan, Xueqin,et al."Fabrication of ZnO/Au@Cu2O heterojunction towards deeply oxidative photodegradation of organic dyes".SEPARATION AND PURIFICATION TECHNOLOGY 262(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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