一种负载型铜基纳米棒异质结光催化剂及其制备方法与应用
By in-situ growing ZIF-67 on the surface of copper bismuthate nanorods to form a heterojunction composite material ZIF-67/CuBi2O4, the problem of low methane generation rate of existing ZIF-67 photocatalysts was solved, and the effect of efficient carbon dioxide reduction to methane was achieved.
CN121732245BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (BEIJING)
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (BEIJING)
- Filing Date
- 2025-12-10
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing ZIF-67 photocatalyst has a high yield of carbon monoxide or hydrogen during carbon dioxide reduction, but a very low yield of methane.
Method used
By in-situ growing ZIF-67 on the surface of copper bismuthate nanorods, a heterojunction composite photocatalyst ZIF-67/CuBi2O4 was formed. Supported copper-based nanorod heterojunction photocatalysts were prepared by hydrothermal reaction and mixed solution treatment under specific ratios and conditions.
Benefits of technology
It significantly improves the rate and efficiency of carbon dioxide reduction to methane, possesses good photosensitivity and photoelectrochemical performance, and has high-efficiency photoelectric conversion capability, wide spectral response and long cycle life.
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Abstract
本发明公开了一种负载型铜基纳米棒异质结光催化剂及其制备方法与应用。本发明提供的异质结复合光催化材料，包括如下组成：载体铋酸铜纳米棒及其表面的ZIF‑67。其制备方法包括：将铜源、铋源加入水中，水热反应，得到铋酸铜纳米棒CuBi2O4；将所得铋酸铜纳米棒与钴源、咪唑类化合物混合，搅拌，在铋酸铜纳米棒表面原位生长ZIF‑67十二面体，得到异质结复合光催化材料ZIF‑67 / CuBi2O4。本发明制备得到的ZIF‑67 / 铋酸铜异质结光催化剂具有良好的光敏性，可以满足光催化还原二氧化碳生产甲烷的需求；其作为异质结复合光催化材料，具备良好的光电化学性能，能够满足高效光电转换、宽光谱响应及长循环寿命等需求。
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