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Synthesis of Mn-Zn ferrite absorbing materials doped microwave-induced pyrolysis of sewage sludge

  • Harbin Institute of Technology
  • School of Marine Science and Technology, Harbin Institute of Technology Weihai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Mn-Zn ferrite was synthesized with microwave-induced pyrolysis ash of sewage sludge as dopant, and the optimal doping ratios were 20%. Crystal structure and microstructure of the samples were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), respectively. Electromagnetic parameters (μ and ε) of the samples were investigated using Vector Network Analyzer. The results showed that the samples had spinel crystal structure and electromagnetic wave absorption achieved 19.47 dB more than the control. The frequency of maximum reflection loss of Mn-Zn ferrite with dopant moved towards higher frequency, reaching 11 GHz, and the bandwidth of reflection loss more than 10 dB increased from 1.7 GHz to 2.0 GHz. Heavy metals in the pyrolysis ash were solidified in the ferrite.

Original languageEnglish
Title of host publicationEnvironment, Energy and Applied Technology - Proceedings of the 2014 3rd International Conference on Frontier of Energy and Environment Engineering, ICFEEE 2014
EditorsWen-Pei Sung, Jimmy C.M. Kao
PublisherCRC Press/Balkema
Pages287-292
Number of pages6
ISBN (Electronic)9781138026919
DOIs
StatePublished - 2015
EventInternational Conference on Frontier of Energy and Environment Engineering, ICFEEE 2014 - Taichung, Taiwan, Province of China
Duration: 6 Dec 20147 Dec 2014

Publication series

NameEnvironment, Energy and Applied Technology - Proceedings of the 2014 3rd International Conference on Frontier of Energy and Environment Engineering, ICFEEE 2014

Conference

ConferenceInternational Conference on Frontier of Energy and Environment Engineering, ICFEEE 2014
Country/TerritoryTaiwan, Province of China
CityTaichung
Period6/12/147/12/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Doping
  • Electromagnetic properties
  • Microwave-induced pyrolysis
  • Mn-Zn ferrite
  • Sewage sludge

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