| 引用本文: | 汪靖凯,杭美艳,李可庆,杨文焕,张培育.玄武岩纤维/TiO2复合材料的制备及表征[J].材料科学与工艺,2017,25(2):79-84.DOI:10.11951/j.issn.1005-0299.20160191. |
| WANG Jingkai,HANG Meiyan,LI Keqing,YANG Wenhuan,ZHANG Peiyu.Preparation and characterization of basalt fibers/TiO2 composite materials[J].Materials Science and Technology,2017,25(2):79-84.DOI:10.11951/j.issn.1005-0299.20160191. |
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| 摘要: |
| TiO2纳米粉体应用于光催化领域存在光吸收仅局限于紫外光区域、难以回收等缺点，因此，纳米TiO2固定化和可见光改性成为光催化领域的两个研究热点.本文采用绿色环保的水热法，将TiO2负载于玄武岩纤维载体上，在较低的温度下制备出一种新型的玄武岩纤维/TiO2复合材料.使用XRD分析了复合材料的物相结构，采用SEM观测了复合材料的形貌，并对水热法合成其机理进行了分析.结果表明：150 ℃水热条件下、反应10 h合成的玄武岩纤维/TiO2复合材料中，颗粒状的TiO2涂层均匀包覆于玄武岩纤维表面，并没有改变玄武岩纤维结构，形成了一种具有核壳结构的新型玄武岩纤维/TiO2复合材料，经过TiO2修饰的玄武岩纤维对可见光有很好吸收.因此，玄武岩纤维/TiO2复合材料是一种具有潜在应用价值的可见光催化材料.
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| 关键词: 玄武岩纤维 TiO2 复合 制备 表征分析 |
| DOI：10.11951/j.issn.1005-0299.20160191 |
| 分类号:TQ323 |
| 文献标识码:A |
| 基金项目:国家自然科学基金资金资助项目(21471159);陕西省自然科学基金项目(2015JM2042);西北工业大学凝固技术国家重点实验室开放课题(SKLSP 2014 06);无机合成与制备化学国家重点实验室开放课题(2015-09);内蒙古科技大学李保卫大学生科技创新基金项目(2014052). |
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| Preparation and characterization of basalt fibers/TiO2 composite materials |
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WANG Jingkai1, HANG Meiyan2, LI Keqing1, YANG Wenhuan1, ZHANG Peiyu2
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(1.School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 0140102,China; 2.College of Architecture and Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010,China)
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| Abstract: |
| Nano-TiO2 powder has some disadvantages in the photocatalytic fields, such as light absorption is only limited to UV region, difficult to recycling, et al, so immobilizing and visible-modifying nano-TiO2 become two research hotspots in this field. In this paper, TiO2 was loaded on the basalt fibers carriers, a novel basalt fibers/TiO2 composite material was synthesized by a green hydrothermal method at lower temperature. The phase structure of the samples was examined by X-ray diffraction, and the microstructure was examined by scanning electron microscope. The mechanism of hydrothermal technique was briefly discussed. The results show that the surface of basalt fibers was coated by a uniform TiO2 grains at 150 ℃ with reaction 10 h, and have no different phases structure, the composite materials are core-shell structures, the TiO2 modified basalt fibers had higher visible light absorption, so the obtained materials have potential application in the field of Visible-Light-Driven photocatalysts.
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| Key words: basalt fibers TiO2 composite preparation characterization |
