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Vol 26 No Supplementary Issue

Copyright (c) 2014 Lan Wang*, Jing Yang

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Characteristics and Sonocatalytic Degradation Effect of Co/N/Er3+: Y3Al5O12/TiO2 in Organic Dyestuff Wastewater Treatment

https://doi.org/10.14233/ajchem.2014.19014
Lan Wang*
Shijiazhuang Tiedao University, Shijiazhuang, Hebei, P.R. China *Corresponding author: Tel: +86 15530153921; E-mail: wanglan-1971@126.com
Jing Yang
Shijiazhuang Tiedao University, Shijiazhuang, Hebei, P.R. China *Corresponding author: Tel: +86 15530153921; E-mail: wanglan-1971@126.com

Corresponding Author(s) : Lan Wang*

Asian Journal of Chemistry, Vol 26 No Supplementary Issue

Abstract

The role of the composite TiO2 film in wastewater treatment has been attracted more attention. In this study the preparation of the complex Co/N/ Er3+: Y3Al5O12/TiO2 and Er3+: Y3Al5O12/TiO2 film was used sol-gel coating process. Their composition, morphology and luminescent properties of the powders derived from the precursor calcined at different temperatures were analyzed by X-ray diffraction, the absorption spectra and upconversion emission spectra. The nano powders samples of Co/N/Er3+: Y3Al5O12/TiO2 and Er3+: Y3Al5O12/TiO2 were characterized by X-ray diffraction, which appeared anatase mine peaks and the peaks of Co/N/ Er3+: Y3Al5O12/TiO2 samples appeared broadened. The absorption spectra analysis of crystalline Co/N/Er3+: Y3Al5O12/TiO2 manifested that N doping could cause stretching vibration peak broadening of the adsorption of water or hydroxyl and the Ti-O stretching vibration peak shifted to lower wavenumbers, Co2+ ions exist strong absorption at 1-1.7 μm wavelength range, the transition luminescence of Er3+ ions just in Co2+ ions absorption band. The emission spectra of the test showed that: Co/N/Er3+: Y3Al5O12/TiO2 could launch 500-560 nm of green and red 650-700 nm, which appeared in 525, 550 and 660 nm peaks, corresponding to 2H11/2, 4S3/2 ® 4I15/2 and 4H9/2 ® 4I15/2 transition of Er3+. Cobalt and nitrogen doping improved the absorption and upconversion emission effect. The test of catalytic degradating organic dyestuff (Reactive blue 4, methyl orange, rhodamine B) by using Co/N/Er3+: Y3Al5O12/TiO2 and Er3+: Y3Al5O12/TiO2 were done under ultrasonic radiation. Er3+: Y3Al5O12/TiO2 sonocatalytic degradation efficiency was improved significantly because of doping Co and N.

Keywords

Co/N/ Er3+: Y3Al5O12/TiO2 XRD FTIR Upconversion emission spectra Sonocatalytic Degradation Organic dyestuff.
Wang*, L., & Yang, J. (2014). Characteristics and Sonocatalytic Degradation Effect of Co/N/Er3+: Y3Al5O12/TiO2 in Organic Dyestuff Wastewater Treatment. Asian Journal of Chemistry, 26(27), 69–72. https://doi.org/10.14233/ajchem.2014.19014
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