Manganese doped magnetic cobalt ferrite nanoparticles for dye degradation via a novel heterogeneous chemical catalysis

Ruyan Dou, Hao Cheng, Jianfeng Ma, Sridhar Komarneni

Research output: Contribution to journalArticle

Abstract

Composite cobalt ferrites doped with manganese were successfully synthesized via sol-gel auto combustion method and were annealed at a temperature of 400 °C. The catalytic activity of a series of catalysts at different manganese contents was studied using the sodium bisulfite-assisted system for degradation of water-soluble organic pollutants such as orange Ⅱ (OⅡ). The obtained ferrite compositions were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), vibrating sample magnetometer (VSM) and X-ray photoelectron spectrometer (XPS). The results showed that the degradation efficiency was greatly enhanced in the presence of NaHSO3. In addition, all the Mn-containing samples showed much higher capability to degrade OⅡ than the pure CoFe2O4 under the same conditions. Among all the samples containing manganese, the CoMn0.2Fe1.8O4 sample showed higher degrading ability. The CoMn0.2Fe1.8O4 sample also showed strong ferromagnetic property with the saturation magnetization and remanence magnetization of 43.1 emu/g and 22.5 emu/g respectively, which is expected to provide a good magnetic separation performance.

Original languageEnglish (US)
Article number122181
JournalMaterials Chemistry and Physics
Volume240
DOIs
StatePublished - Jan 15 2020

Fingerprint

Manganese
Catalysis
catalysis
Ferrite
manganese
ferrites
Cobalt
Coloring Agents
cobalt
Dyes
dyes
degradation
Nanoparticles
Degradation
nanoparticles
Magnetic separation
Remanence
Organic pollutants
Ferrites
Magnetometers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

@article{7bdbb263338f47f6852888e120f03934,
title = "Manganese doped magnetic cobalt ferrite nanoparticles for dye degradation via a novel heterogeneous chemical catalysis",
abstract = "Composite cobalt ferrites doped with manganese were successfully synthesized via sol-gel auto combustion method and were annealed at a temperature of 400 °C. The catalytic activity of a series of catalysts at different manganese contents was studied using the sodium bisulfite-assisted system for degradation of water-soluble organic pollutants such as orange Ⅱ (OⅡ). The obtained ferrite compositions were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), vibrating sample magnetometer (VSM) and X-ray photoelectron spectrometer (XPS). The results showed that the degradation efficiency was greatly enhanced in the presence of NaHSO3. In addition, all the Mn-containing samples showed much higher capability to degrade OⅡ than the pure CoFe2O4 under the same conditions. Among all the samples containing manganese, the CoMn0.2Fe1.8O4 sample showed higher degrading ability. The CoMn0.2Fe1.8O4 sample also showed strong ferromagnetic property with the saturation magnetization and remanence magnetization of 43.1 emu/g and 22.5 emu/g respectively, which is expected to provide a good magnetic separation performance.",
author = "Ruyan Dou and Hao Cheng and Jianfeng Ma and Sridhar Komarneni",
year = "2020",
month = "1",
day = "15",
doi = "10.1016/j.matchemphys.2019.122181",
language = "English (US)",
volume = "240",
journal = "Materials Chemistry and Physics",
issn = "0254-0584",
publisher = "Elsevier BV",

}

Manganese doped magnetic cobalt ferrite nanoparticles for dye degradation via a novel heterogeneous chemical catalysis. / Dou, Ruyan; Cheng, Hao; Ma, Jianfeng; Komarneni, Sridhar.

In: Materials Chemistry and Physics, Vol. 240, 122181, 15.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Manganese doped magnetic cobalt ferrite nanoparticles for dye degradation via a novel heterogeneous chemical catalysis

AU - Dou, Ruyan

AU - Cheng, Hao

AU - Ma, Jianfeng

AU - Komarneni, Sridhar

PY - 2020/1/15

Y1 - 2020/1/15

N2 - Composite cobalt ferrites doped with manganese were successfully synthesized via sol-gel auto combustion method and were annealed at a temperature of 400 °C. The catalytic activity of a series of catalysts at different manganese contents was studied using the sodium bisulfite-assisted system for degradation of water-soluble organic pollutants such as orange Ⅱ (OⅡ). The obtained ferrite compositions were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), vibrating sample magnetometer (VSM) and X-ray photoelectron spectrometer (XPS). The results showed that the degradation efficiency was greatly enhanced in the presence of NaHSO3. In addition, all the Mn-containing samples showed much higher capability to degrade OⅡ than the pure CoFe2O4 under the same conditions. Among all the samples containing manganese, the CoMn0.2Fe1.8O4 sample showed higher degrading ability. The CoMn0.2Fe1.8O4 sample also showed strong ferromagnetic property with the saturation magnetization and remanence magnetization of 43.1 emu/g and 22.5 emu/g respectively, which is expected to provide a good magnetic separation performance.

AB - Composite cobalt ferrites doped with manganese were successfully synthesized via sol-gel auto combustion method and were annealed at a temperature of 400 °C. The catalytic activity of a series of catalysts at different manganese contents was studied using the sodium bisulfite-assisted system for degradation of water-soluble organic pollutants such as orange Ⅱ (OⅡ). The obtained ferrite compositions were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), vibrating sample magnetometer (VSM) and X-ray photoelectron spectrometer (XPS). The results showed that the degradation efficiency was greatly enhanced in the presence of NaHSO3. In addition, all the Mn-containing samples showed much higher capability to degrade OⅡ than the pure CoFe2O4 under the same conditions. Among all the samples containing manganese, the CoMn0.2Fe1.8O4 sample showed higher degrading ability. The CoMn0.2Fe1.8O4 sample also showed strong ferromagnetic property with the saturation magnetization and remanence magnetization of 43.1 emu/g and 22.5 emu/g respectively, which is expected to provide a good magnetic separation performance.

UR - http://www.scopus.com/inward/record.url?scp=85072244432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072244432&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2019.122181

DO - 10.1016/j.matchemphys.2019.122181

M3 - Article

VL - 240

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

M1 - 122181

ER -