ZrO₂/CNBs复合催化剂的制备及其性能研究

Preparation and Performance of ZrO₂/CNBs Composite Photocatalyst

摘要

文章以纳米多孔碳碗（CNBs）为载体，以正丙醇锆为锆源，采用溶剂热法制备二氧化锆（ZrO₂）负载量可控的ZrO₂/CNBs复合催化剂。利用TEM、XRD以及BET测试对催化剂的形貌、晶相和孔结构进行表征。在刚果红吸附实验中，当ZrO₂负载量为25%时，复合催化剂表现最高吸附容量，达800 mg/g. 在光催化降解实验中，该催化剂在150 min内对刚果红的降解率约为50%. 结果表明，该方法能够实现ZrO₂纳米粒子在CNBs上的均匀分散与负载量精确控制，为高性能复合催化剂的制备提供了可行方案。

Abstract

Zirconium dioxide （ZrO₂）load-controllable ZrO₂/CNBs composite catalysts were synthesized via a solvothermal method，using nano-porous carbon bowls （CNBs）as the support and zirconium n-propoxide as the zirconium source. The morphology，crystal phase and pore structure of the catalysts were characterized by TEM，XRD and BET measurements. In the Congo red adsorption experiments，the composite catalyst with a ZrO₂ loading of 25% exhibited the highest adsorption capacity，reaching 800 mg/g. In the photocatalytic degradation tests，this catalyst achieved a degradation rate of approximately 50% for Congo red within 150 minutes. The results indicate that this method enables uniform dispersion of ZrO₂ nanoparticles on CNBs and precise control of the loading amount，demonstrating a viable strategy for the preparation of high-performance composite catalysts.

关键词

ZrO₂ / 负载 / 刚果红 / 吸附 / 光催化

Key words

ZrO₂ / Loading / Congo red / Adsorption / Photocatalysis

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基金资助

2024年度兰州文理学院雁苑科技创新基金项目(2024QNRC01)

2025年度兰州市第二批科技计划项目(2025-2-130)