Mesoporous graphitic carbon nitrides decorated with Cu nanoparticles: Efficient photocatalysts for degradation of tartrazine yellow dye

Tao Zhang, Isis P.A.F. Souza, Jiahe Xu, Vitor C. Almeida, Teddy Asefa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A series of mesoporous graphitic carbon nitride (mpg-C3 N4) materials are synthesized by directly pyrolyzing melamine containing many embedded silica nanoparticles templates, and then etching the silica templates from the carbonized products. The mass ratio of melamine-to-silica templates and the size of the silica nanoparticles are found to dictate whether or not mpg-C3 N4 with large surface area and high porosity form. The surfaces of the mpg-C3 N4 materials are then decorated with copper (Cu) nanoparticles, resulting in Cu-decorated mpg-C3 N4 composite materials that show excellent photocatalytic activity for degradation of tartrazine yellow dye. The materials’ excellent photocatalytic performance is attributed to their high surface area and the synergistic effects created in them by mpg-C3 N4 and Cu nanoparticles, including the Cu nanoparticles’ greater ability to separate photogenerated charge carriers from mpg-C3 N4.

Original languageEnglish
Article number636
JournalNanomaterials
Volume8
Issue number9
DOIs
Publication statusPublished - Sep 1 2018

Fingerprint

Tartrazine
Carbon nitride
Photocatalysts
Coloring Agents
Dyes
Silicon Dioxide
Nanoparticles
Degradation
Silica
Melamine
Charge carriers
Copper
Etching
Porosity
cyanogen
Composite materials

Keywords

  • Copper nanoparticles
  • Mesoporous graphitic carbon nitride
  • Photocatalysis
  • Photodegradation
  • Tartrazine yellow

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemical Engineering(all)

Cite this

Mesoporous graphitic carbon nitrides decorated with Cu nanoparticles : Efficient photocatalysts for degradation of tartrazine yellow dye. / Zhang, Tao; Souza, Isis P.A.F.; Xu, Jiahe; Almeida, Vitor C.; Asefa, Teddy.

In: Nanomaterials, Vol. 8, No. 9, 636, 01.09.2018.

Research output: Contribution to journalArticle

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