Metal Removal by Sodium Graphene Oxide

Master's Thesis

Abstract

Graphene oxide (GO) is a phenomenal nano-adsorbent for heavy metal cations; however, its acidic properties limit its practical application. This study investigated the adsorption behavior of neutralized graphene oxide, herein referred to as sodium graphene oxide (SGO). Titration data revealed that the preparation of SGO did not alter the surface sites of GO. An equilibrium derived model was used to estimate the amount of base needed to neutralize GO and gave an excellent approximation of the total number of sites on GO. Adsorption experiments and the subsequent Langmuir modeling showed SGO to have a maximum adsorption capacity for lead of 910 (mg g-1) surpassing that of every known carbon adsorbent. This study shows that SGO retains GO excellent adsorption capabilities without caustic conditions.

Attributes

Attribute NameValues
URN
  • etd-12042012-163732

Author Marjorie Rose Willner
Advisor Chongzheng Na
Contributor Jeremy Fein, Committee Member
Contributor Chongzheng Na, Committee Chair
Contributor Diogo Bolster , Committee Member
Degree Level Master's Thesis
Degree Discipline Civil Engineering and Geological Sciences
Degree Name MSEnvE
Defense Date
  • 2012-11-12

Submission Date 2012-12-04
Country
  • United States of America

Subject
  • lead

  • Graphene Oxide

  • adsorption

Publisher
  • University of Notre Dame

Language
  • English

Record Visibility and Access Public
Content License
  • All rights reserved

Departments and Units

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