微波热解蔗渣制备生物质基碳纳米管

doi:10.16085/j.issn.1000-6613.2024-1385

化工进展 ›› 2025, Vol. 44 ›› Issue (10): 5697-5702.DOI: 10.16085/j.issn.1000-6613.2024-1385

• 能源加工与技术 • 上一篇

微波热解蔗渣制备生物质基碳纳米管

廖丽芳(), 魏一麟, 毛闯, 许庆利(), 彭麟, 郑业川, 颜涌捷

华东理工大学资源与环境工程学院，上海 200237

收稿日期:2024-08-23 修回日期:2024-09-24 出版日期:2025-10-25 发布日期:2025-11-10
通讯作者: 许庆利
作者简介:廖丽芳（1987—），女，硕士，实验师，研究方向为生物质能开发和利用。E-mail：liaolf@ecust.edu.cn。
基金资助:
国家自然科学基金(21376084);华东理工大学2024年度国家级 “大学生创新创业训练计划”(202410251080)

Preparation of biomass-based carbon nanotubes from bagasse by microwave pyrolysis

LIAO Lifang(), WEI Yiling, MAO Chuang, XU Qingli(), PENG Lin, ZHENG Yechuan, YAN Yongjie

School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2024-08-23 Revised:2024-09-24 Online:2025-10-25 Published:2025-11-10
Contact: XU Qingli

摘要/Abstract

摘要：

以蔗渣为原料，采用硝酸铁、二茂铁、草酸钴对蔗渣进行预处理，制备蔗渣-催化剂前体。在微波场中，700W功率下对蔗渣-催化剂前体进行裂解制备生物质基碳纳米管（CNTs），并通过X射线衍射、扫描电子显微镜、拉曼光谱等多种表征方法分析碳纳米管微观结构。结果表明，通过金属催化剂预处理后，MCN-2和MCN-3产品管壁上可以观察到完整且光滑的CNTs。拉曼光谱中I_D与I_G的比值远低于1.0，表明制备的CNTs石墨化程度较高。与生物质炭相比，CNTs的结晶度、结构有序性和热稳定性增加。

关键词: 微波, 生物质炭, 碳纳米管, 催化剂

Abstract:

The sugarcane bagasse was pretreated with iron nitrate, ferrocene, and cobalt oxalate to prepare sugarcane bagasse catalyst precursor. Bio-based carbon nanotubes (CNTs) were prepared by pyrolysis of bagasse catalyst precursor in a microwave field at a power of 700W, and the microstructure of the CNTs was analyzed by various characterization methods such as X-ray diffractometer, scanning electron microscope, Raman spectroscopy, etc. The results showed that after pretreatment with metal catalysts, the smooth CNTs could be observed on the tube walls of MCN-2 and MCN-3 products. The ratio value of I_D and I_G in Raman spectroscopy was much lower than 1.0, indicating a high degree of graphitization of the prepared CNTs. Compared with bio-char, CNTs had increased crystallinity, structural order, and thermal stability.

Key words: microwave, bio-char, carbon nanotubes, catalyst

中图分类号:

廖丽芳, 魏一麟, 毛闯, 许庆利, 彭麟, 郑业川, 颜涌捷. 微波热解蔗渣制备生物质基碳纳米管[J]. 化工进展, 2025, 44(10): 5697-5702.

LIAO Lifang, WEI Yiling, MAO Chuang, XU Qingli, PENG Lin, ZHENG Yechuan, YAN Yongjie. Preparation of biomass-based carbon nanotubes from bagasse by microwave pyrolysis[J]. Chemical Industry and Engineering Progress, 2025, 44(10): 5697-5702.

图/表 7

图1 微波裂解工艺流程1—气瓶；2—水；3—质量流量计；4—压力表；5—水泵；6—水蒸气发生器；7—热电偶；8—微波炉；9—石英反应器；10—水泵；11—冷凝管；12—烧瓶；13—吸附瓶；14—气相色谱

表1 微波热解蔗渣-催化剂前体及固相产物

原料	热解固相产物	微波功率/W
蔗渣	MBC	700
蔗渣浸渍二茂铁	MCN-1	700
蔗渣浸渍硝酸铁	MCN-2	700
蔗渣浸渍乙酸钴	MCN-3	700

图2 固相产物的SEM表征

图3 固体产物催化剂粒子的分布图和粒径分布直方图

图4 固相产物的热重分析

图5 固相产物的XRD表征

图6 固相产物的拉曼光谱图

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微波热解蔗渣制备生物质基碳纳米管

Preparation of biomass-based carbon nanotubes from bagasse by microwave pyrolysis

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