| 室温下介孔MnO2降解低浓度甲醛的研究 |
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| 引用本文： | 许凌亮,方建飞,汤惠睫,韩哲,金红晓,葛洪良,王新庆,楼辉,金顶峰,彭晓领,李静,杨艳婷,洪波.室温下介孔MnO2降解低浓度甲醛的研究[J].稀有金属材料与工程,2020,49(4):1105-1109. |
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| 作者姓名： | 许凌亮 方建飞 汤惠睫 韩哲 金红晓 葛洪良 王新庆 楼辉 金顶峰 彭晓领 李静 杨艳婷 洪波 |
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| 作者单位： | 中国计量大学材料科学与工程学院,,材料科学与工程学院,材料科学与工程学院,材料科学与工程学院,材料科学与工程学院,材料科学与工程学院,,中国计量大学材料科学与工程学院,材料科学与工程学院,材料科学与工程学院,材料科学与工程学院,材料科学与工程学院 |
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| 摘 要： | 本文以KMnO4和P123为原料采用溶胶-凝胶法在不同条件下制备了介孔MnO2。研究了反应物比和pH对催化剂结构和催化降解性能的影响。溶胶-凝胶法制备介孔MnO2的最佳条件为：原料配比为10：1,pH值为7。合成材料的结构和性能采用XRD、N2吸脱附、FT-IR的测试方法表征,结果表明P123和KMnO4合成的介孔MnO2具有较大的比表面积和孔径,且有良好的HCHO催化降解性能。最后讨论了介孔MnO2催化氧化HCHO的影响因素,发现在pH7 的情况下最有利于介孔MnO2的活性稳定；在原料比为10：1情况下生成的介孔MnO2比表面积较大,催化降解性能较强,在10h内保持在对甲醛的降解率为95%以上。
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| 关 键 词： | 甲醛，介孔二氧化锰，催化氧化，溶胶凝胶法，室内空气 |
| 收稿时间： | 2019/4/26 0:00:00 |
| 修稿时间： | 2019/9/10 0:00:00 |
Degradation of low concentration formaldehyde by mesoporous MnO2 at room temperature |
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| XU Ling-liang,FANG Jian-fei,TANG Hui-jie,HAN Zhe,JIN Hong-xiao,GE Hong-liang,WANG Xin-qing,LOU Hui,JIN Ding-feng,PENG Xiao-ling,LI Jing,YANG Yan-ting and HONG Bo.Degradation of low concentration formaldehyde by mesoporous MnO2 at room temperature[J].Rare Metal Materials and Engineering,2020,49(4):1105-1109. |
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| Authors: | XU Ling-liang FANG Jian-fei TANG Hui-jie HAN Zhe JIN Hong-xiao GE Hong-liang WANG Xin-qing LOU Hui JIN Ding-feng PENG Xiao-ling LI Jing YANG Yan-ting and HONG Bo |
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| Affiliation: | College of Materials Science and Engineering, China Jiliang University,,,,,,,,College of Materials Science and Engineering, China Jiliang University, Hangzhou,,,, |
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| Abstract: | Mesoporous MnO2 was prepared by sol-gel method using KMnO4 and P123. The structure and properties of the synthesized materials were characterized by XRD, N2 adsorption and desorption, and FT-IR. The effects of reactant ratio and pH on the catalytic oxidation performance of the product were investigated. The optimum conditions of the preparation were as follows: the ratio of KMnO4 and P123 was 10:1 and the pH was 7. The results shown that mesoporous MnO2 has good catalytic oxidation performance to HCHO. Finally, the influencing factors of the catalytic oxidation of HCHO by mesoporous MnO2 were discussed. The specific surface area of mesoporous MnO2 (pH7-10:1) was largest. The oxidation performance was the strongest, and the degradation rate of formaldehyde was maintained at 95 %. |
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| Keywords: | Formaldehyde Mesoporous MnO2 Catalytic oxidation Sol-gel method Indoor air |
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