燃料化学学报（中英文）2026，Vol.54Issue(1)：121-132,12.DOI:10.3724/2097-213X.2025.JFCT.0013
利用赤泥制备FexOy/BaTiO3/C复合材料及其吸波性能研究
Fabrication and electromagnetic wave absorption properties of FexOy/BaTiO3/C composites from red mud
摘要
Abstract
To achieve the resource utilization of red mud,this work prepares FexOy/BaTiO3/C composite microwave absorbing materials using red mud as the iron source and soluble starch as the carbon source,employing sol-gel and solid-state reaction methods.First,a BaTiO3 precursor sol is obtained through the sol-gel process using titanium butoxide and barium acetate,which is then mixed uniformly with red mud and soluble starch.During the solid-state reaction,Fe2O3 in the red mud undergoes in situ carbothermic reduction to form Fe3O4 and Fe,which are evenly distributed within the composite,and the BaTiO3 exhibits a needle-like morphology.Experimental results show that by adjusting the solid-state reaction temperature and the raw material ratio,the phase composition,microstructure,and microwave absorption performance of the composites can be optimized.When the temperature is 700 ℃,RmBTS-700-1.2 exhibits a minimum reflection loss of-16.0 dB at a coating thickness of 2.0 mm,with an effective absorption bandwidth of 3.0 GHz.Meanwhile,RmBTS-700-1.8 achieves a minimum reflection loss of-32.6 dB at 10.7 GHz under the same coating thickness.The FexOJBaTiO3/C composite microwave absorbing materials prepared in this study exhibit both strong dielectric loss and magnetic loss capabilities,providing a new approach for the comprehensive utilization of red mud and contributing to the realization of the carbon neutrality and carbon peak goals.关键词
赤泥/钛酸钡/固相反应/复合微波吸收材料Key words
red mud/barium titanate/solid-phase reaction/composite microwave absorbing material分类
通用工业技术引用本文复制引用
力国民,李凌霄,杜秀宁,贾琨,张克维,梁丽萍..利用赤泥制备FexOy/BaTiO3/C复合材料及其吸波性能研究[J].燃料化学学报（中英文）,2026,54(1):121-132,12.基金项目
Supported by the National Nature Science Foundation of China(51802212),the Central Guidance on Local Science and Technology Development Fund of Shanxi Province(YDZJSX2024D057,YDZJSX2022B017),the Natural Science Foundation of Shanxi Province(202203021211188,202103021223453),Shanxi Postgraduate Practice and Innovation Project(2024SJ307).国家自然科学基金(51802212),中央引导地方科技发展资金项目(YDZJSX2024D057,YDZJSX2022B017),山西省自然科学基金(202203021211188,202103021223453)和山西研究生实践创新项目(2024SJ307)资助 （51802212）
