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TiO2/Nd2Zr2O7复合物的合成及催化性能

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Abstract:

通过溶胶–凝胶法成功合成了TiO2/Nd2Zr2O7复合氧化物。采用X射线衍射、透射电子显微镜、扫描电子显微镜对材料进行了表征,并对其比表面积进行了测试。结果表明TiO2均匀地包覆在了Nd2Zr2O7颗粒的表面,其包覆量为50.36%(质量分数);TiO2/Nd2Zr2O7复合物的BET比表面积为25.62m2/g,比Nd2Zr2O7纳米晶的表面积3.48m2/g大得多。通过降解甲基橙评价产物的光催化活性,证实TiO2/Nd2Zr2O7复合物具有好的光催化活性。通过Nd2Zr2O7,TiO2和TiO2/Nd2Zr2O7在20min内降解甲基橙的降解量分别为20.1%,70.7%和88.2%。

References

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[11]  DOI:10.7521/j.issn.0454–5648.2013.01.08

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