| 纳米碳纤维固载TiO_2 |
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| 引用本文： | 陈影声,陈震,卢才英,陈日耀,陈晓,郑曦.纳米碳纤维固载TiO_2[J].应用化学,2010,27(10):1188-1191. |
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| 作者姓名： | 陈影声 陈震 卢才英 陈日耀 陈晓 郑曦 |
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| 作者单位： | (1.福建师范大学化学与材料学院 福州 350007；2.宁德师范学院化学系 宁德 352100) |
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| 基金项目： | 福建省科技厅福建省自然科学基金项目，福建省发展改革委员会资助项目 |
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| 摘 要： | 采用聚乙烯吡咯烷酮(PVP)溶胶通过静电纺丝法制备了PVP纳米纤维。将PVP纳米纤维直接固载在碳棒上,在250℃预氧化,850℃炭化,得到碳纳米纤维。将碳纤维渍取钛酸丁酯,200℃下热处理后在550℃空气中焙烧,制得负载型纳米TiO2。利用扫描电子显微镜、红外吸收光谱、X射线衍射等测试技术对纳米纤维进行了表征。并把负载型TiO2分散在亚甲基蓝溶液中,分析了TiO2固载纳米碳纤维的光催化活性。结果表明,在100mL20mg/L亚甲基蓝溶液中加入1.0mgTiO2固载碳纳米纤维,光催化降解40min后,亚甲基蓝的分解率接近75%。
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| 关 键 词： | 静电纺丝 碳纳米纤维 二氧化钛 亚甲基蓝光降解 |
| 收稿时间： | 2009-12-10 |
| 修稿时间： | 2010-02-13 |
TiO2 Nanoparticles Loaded on Carbon Nanofibers |
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| CHEN Ying-Sheng,CHEN Zhen,LU Cai-Ying,CHEN Ri-Yao,CHEN Xiao,ZHENG Xi.TiO2 Nanoparticles Loaded on Carbon Nanofibers[J].Chinese Journal of Applied Chemistry,2010,27(10):1188-1191. |
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| Authors: | CHEN Ying-Sheng CHEN Zhen LU Cai-Ying CHEN Ri-Yao CHEN Xiao ZHENG Xi |
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| Institution: | (1.College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007;
2.Chemistry Department,Ningde Normal University,Ningde 352100) |
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| Abstract: | Polyvinylpyrrolidone(PVP) nanofibers loaded on kryptol were fabricated from PVP sol via an electrospinning technique, followed by preoxidation at 250 ℃and carbonization at 850 ℃. To obtain TiO2 nanoparticles loaded on these carbon nanofibers, the carbon nanofibers were firstly soaked by titanium n-butyloxide(Ti(OC4H9n)4) and subsequently heat-treated at 200 ℃ and calcined at 550 ℃. The morphologies and structure of the products were investigated by scanning electron microscopy(SEM), Fourier transform infrared spectrometry(FT-IR), and X-ray diffraction(XRD). TiO2 loaded on carbon nanofibers were used to study the degradation of methylene blue(100 mL 2.0 mg/L methylene blue) under UV irradiation for 40 min. The obtained nanocomposite exhibited a higher photo catalytic activity and the degradation percentage of methylene blue was higher than 75%. |
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| Keywords: | TiO2 |
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