| 董艳萍,安晋辉,田喜强,张文元,徐鹏宇.钯/铈金属有机框架材料的合成及催化还原甲基橙染料性能[J].中国造纸,2026,45(3):124-132 |
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| 钯/铈金属有机框架材料的合成及催化还原甲基橙染料性能 |
| Synthesis of Pd/Ce-MOF and Its Performance in Catalytic Reduction of Methyl Orange Dye |
| 收稿日期：2025-08-06 修订日期：2025-10-30 |
| DOI：10.11980/j.issn.0254-508X.2026.03.015 |
| 关键词: Pd/Ce-MOF催化剂 甲基橙 催化还原降解 |
| Key Words:Pd/Ce-MOF catalyst methyl orange catalytic reduction and degradation |
| 基金项目:黑龙江省教育厅基本科研业务费基础研究（YWF10236250218）；哈尔滨学院青年博士科研启动基金项目（HUDF2024104）；绥化学院科研创新团队（SIT06B002）。 |
| 作者 | 单位 | 邮编 | | 董艳萍* | 1哈尔滨学院食品学院,黑龙江哈尔滨,150086 | 150086 | | 安晋辉 | 2绥化学院食品与制药工程学院,黑龙江绥化,152061 | 152061 | | 田喜强* | 2绥化学院食品与制药工程学院,黑龙江绥化,152061 | 152061 | | 张文元 | 2绥化学院食品与制药工程学院,黑龙江绥化,152061 | 152061 | | 徐鹏宇 | 2绥化学院食品与制药工程学院,黑龙江绥化,152061 | 152061 |
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| 摘要:本研究采用水热法合成铈金属有机框架材料（Ce-MOF），并通过浸渍还原法负载钯（Pd）纳米粒子，合成了Pd/Ce-MOF催化剂，系统研究了其微观形貌与结构变化。为探究Pd/Ce-MOF催化剂对偶氮染料的催化还原降解性能，以硼氢化钠为还原剂，研究不同负载量的Pd/Ce-MOF催化剂对甲基橙染料的催化性能。结果表明，质量分数0.8%的Pd/Ce-MOF在1 min即可实现甲基橙还原降解完全，优于其他催化剂，效果最好，且循环5次后仍可保持90.7%的转化率，表明Ce-MOF的多孔结构显著提升了Pd纳米粒子的分散度，增加了活性位点数目，从而提高了催化性能。 |
| Abstract:In this study, a cerium metal-organic framework material (Ce-MOF) was synthesized via a hydrothermal method, and palladium (Pd) nanoparticles were loaded onto it using an impregnation-reduction method, resulting in the preparation of Pd/Ce-MOF catalysts. The Microscopic morphology and structural changes of the catalysts were systematically investigated. To explore the catalytic reduction and degradation performance of Pd/Ce-MOF catalysts toward azo dyes, sodium borohydride was employed as the reducing agent, and the catalytic performance of Pd/Ce-MOF catalysts with varying Pd loadings was studied for the degradation of methyl orange dye. The results demonstrated that the Pd/Ce-MOF catalyst with a mass fraction of 0.8% achieved complete reduction and degradation of methyl orange within 1 minute, outperforming other catalysts and exhibiting the best performance. Moreover, it maintained a conversion rate of 90.7% after five cycles. These findings indicated that the porous structure of Ce-MOF significantly enhanced the dispersion of Pd nanoparticles and increased the number of active sites, thereby improving the catalytic performance. |
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