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- Title
原位组装沸石咪唑酯骨架对纸基 ZnO 纳米棒阵列光电性能的影响.
- Authors
于海瀚; 谭晓冉; 孙术博; 张丽娜; 朱沛华; 于京华; 高超民
- Abstract
The design and preparation of photoelectrode materials with excellent performance are crucial for the development and application of photoelectrochemical (PEC) technique. Paper-based photosensitive materials have been widely studied due to their large surface area, environmental friendliness and low cost. Among them, as one photoelectric material with high photoelectric activity, high electron mobility and non-toxic, paper-based ZnO nanorods have broad application prospects. However, the high recombination rate of charge carriers and photocorrosion seriously restrict the improvement of its PEC performance. Aiming to address these issues, zeolitic imidazolate frameworks-8 (ZIF-8) is in-situ assembled on paper-based ZnO through hydrothermal method to construct paper-based one-dimensional ZnO/ZIF-8 nanorod array. The results show that the ZIF-8 are uniformly and densely grown on the surface of ZnO nanorods, their seamless interface contact can facilitate the charge transport. Meantime, the ZnO surface enriched with abundant oxygen vacancy is etched and converted into ZIF-8, which can restrain the photocorrosion. Besides, due to the matched energy band structure, the formed ZnO/ZIF-8 heterojunction can realize the bidirectional transfer of photogenerated electrons and holes, thereby efficiently promoting the charge separation. Compared with pure ZnO, paper-based ZnO/ZIF-8 composites exhibit higher photocurrent density and enhanced photostability.
- Subjects
ELECTRON mobility; CHARGE exchange; CHARGE carriers; ENERGY bands; NANORODS; TRANSPORTATION rates; PHOTOELECTRICITY
- Publication
Acta Materiae Compositae Sinica, 2023, Vol 40, Issue 4, p2169
- ISSN
1000-3851
- Publication type
Article
- DOI
10.13801/j.cnki.fhclxb.20220518.001