CuO/Cu2O/ZnO复合材料的制备及可见光芬顿催化性能的研究
Preparation of CuO/Cu2O/ZnO Composite and Study on the Catalytic Performance of Fenton under Visible Light
DOI: 10.12677/NAT.2021.113006, PDF,    国家自然科学基金支持
作者: 王 鑫, 陈 铭, 姚 丽：合肥工业大学材料科学与工程学院，安徽 合肥；吕 珺, 舒 霞, 徐光青, 吴玉程*：合肥工业大学材料科学与工程学院，安徽 合肥；先进能源与环境材料国际科技合作基地，安徽 合肥；先进功能材料与器件安徽省重点实验室，安徽 合肥
关键词: CuO/Cu2O/ZnO；复合材料；可见光催化；芬顿氧化；罗丹明B； CuO/Cu2O/ZnO； Composites； Visible Light Catalysis； Fenton Oxidation； Rhodamine B
摘要: 可见光芬顿法是解决水污染问题的一种新型技术，该技术不仅具有芬顿氧化法处理效率高、稳定性好、易于操作等优势，又具有能够有效利用可见光的特点，从而备受关注。本研究以泡沫铜为基底，依次采用阳极氧化法和水热法制备了CuO/Cu2O/ZnO复合材料芬顿催化剂，通过XRD、XPS、SEM、TEM、UV-Vis等分析测试手段对样品的微观形貌、结构组成和光学性能进行了表征，通过可见光下降解罗丹明B (RhB)溶液研究了样品的可见光芬顿催化性能。研究结果表明，相比于基底CuO/Cu2O纳米阵列，CuO/Cu2O/ZnO复合材料可见光芬顿催化降解性能有所提高。CuO/Cu2O/ZnO-4复合材料可见光下25 min降解了98%的RhB溶液，动力学常数为0.18 min−1，是CuO/Cu2O-60纳米阵列的1.5倍，重复循环5次催化降解试验后，30 min对RhB溶液的降解率为93%。ZnO与CuO/Cu2O纳米阵列复合形成了异质结，提高了可见光吸收性能，抑制了光生电子与空穴的复合效率，有效提高了可见光芬顿催化降解性能。
Abstract: Visible light Fenton method, a new technology for solving water pollution, has attracted much attention due to its advantages of high efficiency, good stability, easy operation, and visible light absorption. In this study, CuO/Cu2O/ZnO composites Fenton catalyst were prepared by anodic oxidation method and hydrothermal method on the base of copper foam. The microstructure, composition and optical properties of the samples were systemically characterized by XRD, XPS, SEM, TEM and UV-Vis measurements. The visible-light Fenton catalytic performance of the samples was evaluated by the degradation of Rhodamine B (RhB) under visible light. The research results indicate that compared with the base CuO/Cu2O nanoarrays, the photocatalytic degradation performance of CuO/Cu2O/ZnO composites are improved. The degradation rate of 98% RhB solution was 0.18 min−1, which was 1.5 times of CuO/Cu2O-60 nanoarray. After five cycles, the degradation rate of RhB solution was 93% in 30 minutes. ZnO and CuO/Cu2O nanoarrays formed heterojunction, which improved the visible light absorption, inhibited the recombination efficiency of photogenerated electrons and holes, and effectively improved the catalytic degradation performance of visible light Fenton.
文章引用：王鑫, 陈铭, 姚丽, 吕珺, 舒霞, 徐光青, 吴玉程. CuO/Cu2O/ZnO复合材料的制备及可见光芬顿催化性能的研究[J]. 纳米技术, 2021, 11(3): 43-53. https://doi.org/10.12677/NAT.2021.113006

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