Nitrate reduction using as-synthesized nanoparticles zero valent iron (NZVI) at ambient environment

Lai Mun Kou, Teo Hiu Hong, Satheshkumar Sauandaraju, Ng Chun Kit

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Nitrate removal or denitrification, involves reduction of nitrate into nitrogen and oxygen. The use of nanoparticles zero valent metals for denitrification receives great attention as they have been proven to be effective and environmentally safe. In this work, the nanoparticles were prepared by reducing the metals salts, dissolved in a mixed solution of water and ethanol, using sodium borohydrate. The nitrate reduction reaction took place in an ambient environment-room temperature, neutral pH and aerobic condition. Results from the experiments carried out showed that nitrate has been successfully reduced up to a maximum of 40% in all the samples without an increase in the pH of the solution, a strong indication that ammonia was not produced. As for the study on the reactivity of the recycled NZVI, the samples synthesized with 4:1 (v/v) ethanol/water and using 9: 1 (v/v) ethanol/water, the reactivity of the iron is similar to the fresh NZVI for the first two hours of the study.

Original languageEnglish
Title of host publicationMaterial Science and Engineering Technology VI
EditorsRamesh K. Agarwal
PublisherTrans Tech Publications
Pages129-133
Number of pages5
ISBN (Print)9783035712131
DOIs
Publication statusPublished - 20 Mar 2018
Event6th International Conference on Material Science and Engineering Technology 2017 - Seoul, Korea, Republic of
Duration: 20 Oct 201722 Oct 2017

Publication series

NameMaterials Science Forum
Volume917
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference6th International Conference on Material Science and Engineering Technology 2017
Abbreviated titleICMSET 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period20/10/1722/10/17

Keywords

  • Neutral pH
  • Nitrate reduction
  • Zero valent iron nanoparticles

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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