Highly solar radiation reflective Cr2O3-3TiO 2 orange nanopigment prepared by a polymer-pyrolysis method

Yuan Qing Li, Shi Gang Mei, Young Ji Byon, Jian Lei Wang, Guang Lei Zhang

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

The present study reports the preparation and characterization of an orange nanopigment with high solar radiation reflective properties. Complex Cr 2O3-3TiO2 nanoparticles were prepared by the pyrolysis of Cr-Ti precursors at high temperature, and the effects of the calcination temperature on the structure of Cr2O3- 3TiO2 nanopigment were investigated by thermal analysis, X-ray diffraction, and transmission electron microscopy. The results reveal that the Cr2O - 3TiO2 pigments having rutile structure can be prepared by the calcination of the precursor at above 600 C. All Cr 2O3-3TiO2 pigments are granular in nature and present a homogeneous particle size of around 20 nm. The ultraviolet-visible near infrared (UV-vis-NIR) reflection spectra show that the Cr2O 3-3TiO2 nanopigments have a reflection peak at around 600 nm, which reflects the orange color of these pigments. The average reflectance of Cr2O3-3TiO2 in the NIR range is around 53%, respectively, which is much higher than that of the visible light range. The prepared orange Cr2O3-3TiO2 nanopigments have a great potential in applications such as cool materials used for buildings with energy saving performance.

Original languageBritish English
Pages (from-to)318-321
Number of pages4
JournalACS Sustainable Chemistry and Engineering
Volume2
Issue number2
DOIs
StatePublished - 3 Feb 2014

Keywords

  • Orange pigment
  • Polymer-pyrolysis
  • Reflective
  • Solar

Fingerprint

Dive into the research topics of 'Highly solar radiation reflective Cr2O3-3TiO 2 orange nanopigment prepared by a polymer-pyrolysis method'. Together they form a unique fingerprint.

Cite this