Coprecipitates synthesis of CaIn2O4 and Its photocatalytic degradation of methylene blue by visible light irradiation

Yunfan Zhang, Rengaraj Selvaraj*, Mika Sillanpää, Younghun Kim, Cheuk Wai Tai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Visible light-activated photocatalyst calcium indate (CaIn 2O4) has been successfully prepared by a new approach with lower temperature calcinations. The sub-micrometer-sized samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and UV-vis diffuse reflectance spectroscopy. High-purity CaIn2O 4 particles were synthesized by controlling the sintering temperature and their photocatalytic performance were evaluated. Under visible light irradiation, 10 ppm of methylene blue solution was effectively degraded in 3.0 h. The excellent photocatalytic activity of CaIn2O4 is attributed to the high purity, small particle size, and large surface area because of lower sintering temperature by thermal decomposition of metal oxalate precursor.

Original languageEnglish
Pages (from-to)11720-11726
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Issue number29
Publication statusPublished - Jul 23 2014
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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