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

作　　者：郭冬菁 胡美琴[1] 沈昊宇[1] 张建[2] 孙洁[2] 许宜铭[3] GUO Dong-Jing;HU Mei-Qin;SHEN Hao-Yu;ZHANG Jian;SUN Jie;XU Yi-Ming(Ningbo Institute of Technology,Zhejiang University,Ningbo,Zhejiang 315100,China;Ningbo Institute of Materials Technology & Engineering,Chinese Academy of Sciences,Ningbo,Zhejiang 315201,China;Department of Chemistry,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学宁波理工学院,宁波315100 [2]中国科学院宁波材料技术与工程研究所,宁波315201 [3]浙江大学化学系,杭州310027

出　　处：《无机化学学报》2019年第8期1379-1386,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.51608479);宁波市自然科学基金(No.2018A610206)资助项目

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。Amino-functionalized Fe3O4 magnetic material (NH2@nFe3O4) was prepared via a solvothermal method,followed by impregnation with Al?髥 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.

关 键 词：磁载光催化剂 酞菁 双酚A 可见光 降解 

分 类 号：O643.36[理学—物理化学]