Hydrothermal preparation of neodymium oxide coated titania composite designer particulates and its application in the photocatalytic degradation of procion red dye

K. Byrappa, M. H. Sunitha, A. K. Subram Ani, S. Ananda, K. M.Lokanatha Rai, B. Basavalingu, M. Yoshimura

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23 Citations (Scopus)

Abstract

Nd2O3 coated onto titania composite designer particulates using 1M NaOH at 250°C and P~80 bars with an experimental duration of 5-72 h were obtained under hydrothermal conditions. Different weight % of Nd2O3 (1-9%) was used for coating in order to reveal the role of Nd2O3. Characterization of the Nd 2O3 coated titania composite designer particulates obtained was carried out using XRD and FTIR spectroscopy techniques. Photocatalytic reactivity of Nd2O3 coated titania composite designer particulates was evaluated by studying the degradation of procion red dye. The effect of various kinetic parameters like initial dye concentration, catalyst amount, pH of the medium, temperature of the medium, light source and catalyst reusability on the photodegradation of procion red dye has been discussed in detail. The thermodynamic parameters like energy of activation, enthalpy of activation, entropy of activation and free energy of activation were estimated.

Original languageEnglish
Pages (from-to)1369-1375
Number of pages7
JournalJournal of Materials Science
Volume41
Issue number5
DOIs
Publication statusPublished - 2006 Mar

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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