| Fe2O3/聚糠醛纳米复合材料的制备及光催化性能 | |
| Preparation and Photocatalytic Property of Nanosized Fe2O3 /Polyfurfural(PFD) Complex Material | |
| 摘要: 以Fe(NO3)3·9H2O和糠醛(FD)为原料，通过聚合-热转化两步法制备了Fe2O3/聚糠醛(PFD)纳米复合材料，用TEM、XRD、XPS和UV-Vis等技术对其尺寸、结构及吸光特性等进行了表征。在自然光、室温条件下，以亚甲基蓝(MB)溶液的催化脱色降解为模型反应，考察了其光催化性能以及热转化温度对催化性能的影响。结果表明，利用该法可以得到纳米级的、相间以强相互相用结合的有机-无机复合材料Fe2O3/PFD，该纳米材料对紫外-可见区的全程光波有强的吸收；热转化条件对复合材料的结构、催化性能等有很大影响，在300 ℃下处理35 min所得的纳米复合材料在自然光条件下具有最佳的催化性能，25 min即可使MB溶液完全脱色，并且重复使用3次仍可使MB溶液的脱色率保持在75.0%以上。而在相同条件下，纳米Fe2O3仅能使MB的脱色率达到5.8%。 | |
| 关键词: Fe2O3 聚糠醛 纳米复合材料 两步法 光催化性能 | |
| 基金项目: | |
| Abstract: Nanosized Fe2O3/Polyfurfural(PFD) complex material was prepared with Fe(NO3)3·9H2O and furfural(FD) via a two-step method of polymerization and heat conversion. The material was characterized by TEM、XRD、XPS and UV-Vis techniques in regard to its size, structure and UV-Vis absorption property. The photocatalytic property was evaluated by using the degradation of dye methylene blue(MB) solution as model reaction under the natural light and room temperature. The nanosized Fe2O3/PFD complex could extend the photo-response of Fe2O3 to the whole UV-Vis region. The conditions of the heat conversion remarkably affect the catalytic property of the Fe2O3/PFD. The Fe2O3/PFD nanomaterial, obtained by treating the precursor Fe3+/PFD at 300 ℃ for 35 min, could fully decolorize MB solution within 25 min under the natural light and room temperature. And the efficiency could be kept above 75.0% when it is reused for 3 times while the decolorizing efficiency is only 5.8% by using Fe2O3 nanoparticles. | |
| Keywords: Fe2O3 PFD nanosized complex material two-step method photocatalytic property | |
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| 苏碧桃,赵 丽,许晶晶,朱平武,雷自强.Fe2O3/聚糠醛纳米复合材料的制备及光催化性能[J].无机化学学报,2010,26(8):1431-1436. | |
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