Photocatalytic properties of SrTiO3 nanoparticles prepared by a polyacrylamide gel route
Photocatalytic properties of SrTiO3 nanoparticles prepared by a polyacrylamide gel route
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聚丙烯酰胺凝胶法制备SrTiO3纳米粒子的光催化性能
DOI:
10.1016/j.matlet.2011.07.019
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发表时间:
2011-11
影响因子:
3
通讯作者:
杨华
中科院分区:
文献类型:
--
作者:
县涛(研究生);杨华
A polyacrylamide gel method has been used to prepare SrTiO3nanoparticles. It is found that the choice of chelating agent has a great influence on the SrTiO3synthesis. The use of citric acid as the chelating agent leads to the synthesis of pure SrTiO3at a calcination temperature of 550°C. By using the chelating agent acetic acid, however, a much higher calcination temperature at 800°C is required to produce a single sample. The citric acid- and acetic acid-resulted samples exhibit both sphere- particle morphology, and have an average particle size of ~55nm and ~100nm, respectively. The photocatalytic properties of the as-prepared SrTiO3nanoparticles have been investigated by the degradation of Congo Red, RhB, MO, and MB under ultraviolet irradiation. The citric acid-resulted sample is found to exhibit a photocatalytic activity higher than the acetic acid-resulted sample, expectedly due to its relatively smaller particle size. In addition, different degradation efficiencies are found between the dyes, and the highest degradation efficiency is observed for Congo Red.
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影响因子:
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作者:
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通讯作者:
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