• 文献标题:   Controlled functionalisation of graphene oxide using ethylene diamine: a one-pot synthesis approach for chromium sorption
  • 文献类型:   Article
  • 作  者:   GOVINDANKUTTY G, HAREENDRAN S, SATHISH A, KAMARAJ N
  • 作者关键词:  
  • 出版物名称:   MICRO NANO LETTERS
  • ISSN:  
  • 通讯作者地址:   Amrita Vishwa Vidyapeetham
  • 被引频次:   0
  • DOI:   10.1049/mnl.2020.0158
  • 出版年:   2020

▎ 摘  要

Introduction of ethylene diamine into the layers of graphene oxide was achieved through direct compounding method. Graphene oxide intercalated with ethylene diamine was characterised by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermo gravimetric analysis (TGA) and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) techniques. The efficiency of the material in adsorbing chromium was evaluated through batch scale studies by optimising parameters like pH, concentration and contact time. The material renders a monolayer adsorption capacity of 69.93 mg/g, at pH 1 within 60 min time period for a minimal dosage of 0.05 g. The ethylene diamine modified graphene oxide thus appeals to be a promising adsorbent for environmental applications.