Skip to main content
Top
Published in: Topics in Catalysis 1-2/2021

01-09-2020 | Original Paper

Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution

Authors: Matías Alegría, Juan Aliaga, Luis Ballesteros, Clivia Sotomayor-Torres, Guillermo González, Eglantina Benavente

Published in: Topics in Catalysis | Issue 1-2/2021

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

New composites formed by layered hybrid TiO2(stearic acid) (LHTiO2) and, Cu2O nanoparticles were studied as photocatalysts that extend the response range to light visible for the evolution of hydrogen and the degradation of 4-chlorophenol. The results revealed that LHTiO2/Cu2O exhibited a clearly improved photocatalytic degradation, about 5.6 times faster than pristine TiO2, and hydrogen evolution of about 2.7 times higher than the TiO2 anatase. The enhanced photocatalytic activity can be assigned to the properties of the two-dimensional morphology, in sheets-like arrangement of LHTiO2, benefitting from the high exposure of surface, with more active sites available to improve matching with the surfaces of the Cu2O nanocrystals and significant reduction of migration distances of photogenerated carriers. In the photocatalytic degradation, a mechanism Z-scheme is supported, and in the photocatalytic evolution of hydrogen a mechanism type II band alignment is indicated. Photocatalytic reuse tests showed that stability and catalytic activity of LHTiO2/Cu2O were maintained for three cycles. Photoelectrochemical evaluation were performed through measurements of the photocurrent response and electrochemical impedance.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Appendix
Available only for authorised users
Literature
15.
34.
44.
go back to reference Lalitha K, Sadanandam G, Kumari VD et al (2010) Highly stabilized and finely dispersed Cu2O/TiO2: a promising visible sensitive photocatalyst for continuous production of hydrogen from glycerol:water mixtures. J Phys Chem C 114:22181–22189. https://doi.org/10.1021/jp107405uCrossRef Lalitha K, Sadanandam G, Kumari VD et al (2010) Highly stabilized and finely dispersed Cu2O/TiO2: a promising visible sensitive photocatalyst for continuous production of hydrogen from glycerol:water mixtures. J Phys Chem C 114:22181–22189. https://​doi.​org/​10.​1021/​jp107405uCrossRef
68.
go back to reference Niveditha CV, JabeenFatima MJ, Sindhu S (2016) Electrochemical synthesis of p-type copper oxides. Nanosyst Phys Chem Math 7:747–751CrossRef Niveditha CV, JabeenFatima MJ, Sindhu S (2016) Electrochemical synthesis of p-type copper oxides. Nanosyst Phys Chem Math 7:747–751CrossRef
69.
go back to reference Senain I, Nayan N, Saim H (2010) Structural and electrical properties of TiO2 thin film derived from sol-gel method using titanium (IV) butoxide. Int J Integr Eng 4:29–35 Senain I, Nayan N, Saim H (2010) Structural and electrical properties of TiO2 thin film derived from sol-gel method using titanium (IV) butoxide. Int J Integr Eng 4:29–35
Metadata
Title
Layered Nanocomposite 2D-TiO2 with Cu2O Nanoparticles as an Efficient Photocatalyst for 4-Chlorophenol Degradation and Hydrogen Evolution
Authors
Matías Alegría
Juan Aliaga
Luis Ballesteros
Clivia Sotomayor-Torres
Guillermo González
Eglantina Benavente
Publication date
01-09-2020
Publisher
Springer US
Published in
Topics in Catalysis / Issue 1-2/2021
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-020-01360-6

Other articles of this Issue 1-2/2021

Topics in Catalysis 1-2/2021 Go to the issue

Premium Partners