期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 31, 期 14, 页码 11599-11608出版社
SPRINGER
DOI: 10.1007/s10854-020-03708-w
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类别
资金
- National Council for Scientific and Technological Development (CNPq) [140231/2018-8]
- Coordination for the Improvement of Higher Education Personnel (CAPES)-Brazil (CAPES) [001]
- CAPES/PROCAD [2013/2998/2014]
- Graduate Program in Materials Science and Engineering (PPGCEM-UFRN)
In the present paper, BaWO4: xTm(3+), yPr(3+) samples were synthesized by the ultrasonic spray pyrolysis process and the effect of doping on the structural and optical properties were analyzed. All XRD patterns were indexed by the scheelite-type tetragonal structure, without the presence of secondary phases, suggesting success in the Tm3+ and Pr3+ doping. The FESEM images showed than particles have sphere-like morphology with the presence of holes, irregularity, and pores on their surfaces. The bandgap of the BaWO4:xTm(3+),yPr(3+) sample varied between 5.50 and 5.58 eV. The doping of Tm3+ and Pr3+ resulted in a reduction in the photocatalytic activity can be linked to a decrease of effective masses ratio electron/hole and an increase in the recombination rate.
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