• 文献标题:   Synthesis and application of polymer-grafted nanocellulose/graphene oxide nano composite for the selective recovery of radionuclides from aqueous media
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   SREENIVASAN R, MAHESH SS, SUMI VS
  • 作者关键词:   thorium removal, adsorption, desorption study, graphene, isotherm
  • 出版物名称:   SEPARATION SCIENCE TECHNOLOGY
  • ISSN:   0149-6395 EI 1520-5754
  • 通讯作者地址:   Sree Narayana Coll
  • 被引频次:   3
  • DOI:   10.1080/01496395.2018.1534868
  • 出版年:   2019

▎ 摘  要

A series of batch adsorption experiments under optimized conditions were performed and also to evaluate the reliability and feasibility of prepared adsorbent, carboxylate functionalized ethylene glycol dimethacrylate (EGDMA) crosslinked nanocellulose/graphene oxide polymer composite (EGDMA-g-nCell/GO) for Th(IV) recovery from aqueous media. The material was well characterized by using FTIR, XRD, XPS, SEM-EDS, TG-DTA and zeta potential analysis. The equilibrium adsorption capacity (Q(0)) among the various models was 141.21 mg/g at 30 degrees C and was well correlated with Langmuir isotherm model with reduced chi(2) and R-2 values. The spent adsorbent was undergone four cycles of regeneration process without any significant loss in adsorption capacity using 0.1 M HNO3 as desorbing agent, with up to 98.0 % recovery.