• 文献标题:   Graphene oxide supported copper oxide nanoneedles: An efficient hybrid material for removal of toxic azo dyes
  • 文献类型:   Article
  • 作  者:   RAJESH R, IYER SS, EZHILAN J, KUMAR SS, VENKATESAN R
  • 作者关键词:   graphene oxide, copper oxide nanoneedle, adsorption, azo dye
  • 出版物名称:   SPECTROCHIMICA ACTA PART AMOLECULAR BIOMOLECULAR SPECTROSCOPY
  • ISSN:   1386-1425
  • 通讯作者地址:   Pondicherry Univ
  • 被引频次:   17
  • DOI:   10.1016/j.saa.2016.05.002
  • 出版年:   2016

▎ 摘  要

Herein, we report a simple, one step synthesis of hybrid copper oxide nanoneedles on graphene oxide sheets (GO-CuONNs) through sonochemical method. The present method affords a facile mean for controlling effective concentration of the active CuO nanoneedles on the graphene oxide sheets, and also offers the necessary stability to the resulting GO-CuONNs structure for adsorption transformations. Furthermore, this hybrid GO-CuONNs is successfully employed in the removal of a series of hazardous ionic organic dyes namely coomassie brilliant blue, methylene blue, congo red and amidoblack 10B. Through careful investigation of the material, we found that the synergetic effect between CuONNs and GO play a significant role in the adsorption of all the dyes studied. The prepared hybrid material contains both hydrophobic and hydrophilic environment which is expected to enhance the electrostatic interaction between the adsorbent and the dye molecules, consequently favouring the adsorption process. (C) 2016 Elsevier B.V. All rights reserved.