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中文摘要：
用微波-硬脂酸溶胶凝胶法制备了LaCoO3纳米粒子，采用IR、XRD、TEM等手段进行表征，并以其为催化荆对酸性品红进行光催化降解实验．结果表明，采用微波硬脂酸溶胶法，只需要1h即生成了钙钛矿型复合氧化物LaCoO3（其中微波辐射的时间仅为15min），而传统的加热生成此复合氧化物则需要5h以上，微波法不仅大大降低了溶胶形成的时间，而且此法制备的LaCoO3纳米粒子对酸性品红有很好的催化效果，在pH=2的酸性品红溶液中，30min内降解率达到95％以上．
英文摘要：
Perovskite-type composite oxide LaCoO3 was prepared by microwave irradiation with sol-gel method. The precursor and LaCoO3 were characterized by IR,XRD and TEM. The photocatalytic degradation experiments about acid fuchsin were carried out. The results showed that the precursor was generated with for 1 hour including for 15 min by microwave irradiation. However,it was required more than tor 5 hours to generate the precursor in traditional method. So the time to form the precursor of LaCoO3 was greatly reduced by this method. In addition,above 95 % degradation efficiency of acid fuchsin in aqueous solution （pH=2） was achieved after 60 min of reaction with LaCoO3 synthesized by microwave-gel method.
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