摘要
通过超声波和磁力搅拌法制备了氧化石墨烯-4A分子筛复合材料(GO-4A),利用X射线衍射(X-ray diffraction,XRD)、傅里叶变换红外光谱(Fourier transform-infrared spectroscopy,FT-IR)及扫描电子显微观察(scanning electron microscopy,SEM)等多种手段对氧化石墨烯复合材料进行表征,并研究了氧化石墨烯与4A分子筛在GO-4A复合材料中的质量比(复合比例)对GO-4A吸附铜离子性能的影响。结果表明:复合比例对GO-4A物相组成影响不大;4A分子筛的加入会降低氧化石墨烯的团聚程度,随着复合比例增大,复合材料的热稳定性不断提高;当氧化石墨烯和4A分子筛的复合比例为1:5时,复合效果最佳,在室温条件下,溶液pH=6时,对铜离子的去除效率可达到98.42%。
The composites of graphene oxide-4 A molecular sieve(GO-4 A) were prepared by ultrasonic and magnetic stiring method. The graphene oxide composites were characterized by X-ray diffraction analysis(XRD), Fourier transform-infrared spectroscopy(FT-IR), and scanning electron microscopy(SEM). The effects of component ratio(i.e., the mass fractions of graphene oxide and 4 A molecular sieve in GO-4 A composites) on the adsorption of copper ions were studied. The results show that, the influence of component ratio on the phase composition of GO-4 A composites is limited. With the increase in 4 A molecular sieve content, the aggregation degree of graphene oxide is decreased, and the thermal stability of GO-4 A composites is improved. When the component ratio is 1:5, the composite effect achieves the best, the removal of copper ions(Cu2+) is up to 98.42% at the room temperature and pH = 6.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2018年第6期445-449,457,共6页
Powder Metallurgy Technology
基金
陕西省教育厅专项科研计划资助项目(17JK0327)
关键词
氧化石墨烯
分子筛
吸附性能
铜离子
graphene oxide
molecular sieve
adsorption properties
copper ions
