摘要
采用水热法制备了聚丙烯酸功能化石墨烯/四氧化三铁纳米复合材料(PAAG/Fe_(3)O_(4))。由于聚丙烯酸功能化的石墨烯(PAAG)带有负电荷,易与带正电荷的染料分子结合,同时在其表面负载超顺磁性的四氧化三铁纳米粒子,所制得的PAAG/Fe_(3)O_(4)纳米复合材料兼具良好的分散性、稳定性和高饱和磁化值。PAAG/Fe_(3)O_(4)纳米复合材料用于染料罗丹明B和罗丹明6G的去除,去除率可分别达到95.70%和99.45%,具有优异的去除效率和出色的重复使用性。实验结果证明:PAAG/Fe_(3)O_(4)纳米复合材料可以作为吸附剂有效去除污染物,在文物清洗以及表面污染物的去除等保护修复中具有广阔的应用前景。
A hydrothermal strategy was developed to prepare poly(acrylic acid)functionalized magnetite/reduced graphene oxide nanocomposite(PAAG/Fe_(3)O_(4)).Because PAA-functionalized graphene is negatively charged,it can bind to positively charged dye molecules.The prepared materials have high degree of dispersion,high stability and high saturation magnetization when loade d with magnetic materials on functionalized graphene.The removal efficiencies of PAAG/Fe_(3)O_(4)were 95.70%and 99.45%of Rhodamine B and Rhodamine 6G,respectively.The PAAG/Fe_(3)O_(4)nanohybrid exhibited remarkable removal efficiency and intensity of magnetism,thus having excellent reusability.Therefore,such PAAG/Fe_(3)O_(4)nanocomposites can be used as an effective adsorbent to remove dye pollutants,with wide applications in cleaning and restoration of cultural relics.
作者
顾文婷
陈国科
魏彦飞
GU Wenting;CHEN Guoke;WEI Yanfei(Institute of Cultural Relics and Archaeology of Gansu,Lanzhou 730030,Gansu,China)
出处
《陶瓷学报》
CAS
北大核心
2022年第3期501-506,共6页
Journal of Ceramics
基金
国家社会科学基金重点项目(20AKG007)
甘肃省文物保护科学和技术研究课题(GWJ202031)。
关键词
聚丙烯酸
磁性纳米材料
色素祛除
polyacrylic acid
magnetic nanoparticles
pigment degradation
