| 磺化酞菁铝修饰氨基功能化磁性材料及其光敏化降解双酚A |
| Sulfonated Aluminum Phthalocyanine Modified Amino Functionalized Magnetic Materials for Photosensitized Degradation of Bisphenol A |
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| 摘要: 采用溶剂热法制备氨基功能化Fe3O4磁性材料（NH2@nFe3O4），通过浸渍法将磺化酞菁铝（AlPcS）负载于NH2@nFe3O4。材料的傅立叶红外、漫反射、X射线衍射、扫描电镜、透射电镜、振动磁强计等表征表明：AlPcS主要通过静电作用与NH2@nFe3O4结合，AlPcS-NH2@nFe3O4平均粒径为127 nm，饱和磁化强度为75.3 emu·g-1。在可见光和空气作用下，该功能化磁性材料对降解弱碱性水溶液中环境内分泌干扰物双酚A（BPA）具有较高的光敏化活性。随着AlPcS负载量的增加活性呈先升高后下降的趋势，负载量为3.4%（质量分数）的复合材料性能最佳，反应60 min后，20.0 mg·L-1 BPA降解率为96%；循环使用10次，BPA降解率仍保持93%以上。通过NaN3猝灭实验探讨了反应机理，证实1O2是光敏化过程中的主要活性物种。 |
| 关键词: 磁载光催化剂 酞菁 双酚A 可见光 降解 |
| 基金项目: 国家自然科学基金（No.51608479）和宁波市自然科学基金（No.2018A610206）资助项目。 |
| Abstract: Amino-functionalized Fe3O4 magnetic material (NH2@nFe3O4) was prepared via a solvothermal method, followed by impregnation with Al(Ⅲ) phthalocyanine sulfonate (AlPcS). The characterization of material with Fourier transform infrared spectroscopy, diffuse reflectance, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and vibrating magnetometer show that AlPcS mainly combines with NH2@nFe3O4 through electrostatic interaction. The average particle size and saturation magnetization of AlPcS-NH2@nFe3O4 were 127 nm, and 75.3 emu·g-1, respectively. Under visible light and air, this functionalized magnetic material has high photosensitization activity for degradation of bisphenol A (BPA), an environmental endocrine disruptor in weak alkaline aqueous solution. The photosensitization activity of composite changed with the content of AlPcS, and 3.4%(w/w) AlPcS-NH2@nFe3O4 showed the best photosensitization activity. After 60 min of reaction, the degradation rate of 20.0 mg·L-1 BPA was up to 96%, and it still remained above 93% after ten-repeated use. The reaction mechanism was discussed by NaN3 quenching experiment. It is confirmed that 1O2 is the main active species in the photosensitization process. |
| Keywords: magnetic photocatalyst phthalocyanine bisphenol A visible light degradation |
| 投稿时间：2019-03-17 修订日期：2019-05-10 |
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| 郭冬菁,胡美琴,沈昊宇,张建,孙洁,许宜铭.磺化酞菁铝修饰氨基功能化磁性材料及其光敏化降解双酚A[J].无机化学学报,2019,35(8):1379-1386. |
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