| 前处理时间对Co3O4形貌及光催化性能的影响 |
| Effect of Pretreatment Time on Morphology and Photocatalytic Performance of Co3O4 |
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| 摘要: 以CoCl2、Na2O3为原料, 以油酸钠(SOA)为表面活性剂, 采用水热-热分解法合成了纯相尖晶石结构的Co3O4粉体。利用TG-DTA、XRD和SEM等手段跟踪反应过程, 研究了不同水热时间对产物形貌和结构的影响, 并根据实验结果分析了可能的反应机理及结构对光催化性能的影响。实验结果表明：制备前驱体的水热时间是影响产物形貌的关键因素, 并且终产物的结构形貌很大程度上决定了其光催化性能。 |
| 关键词: 水热法 热分解 Co3O4 反应机理 光催化 |
| 基金项目: 河南科技学院2010年度科研启动经费(No.21001061003), 2014年新乡市重点科技攻关项目(No.ZG14028)资助项目。 |
| Abstract: Pure spinel Co3O4 powders with different morphologies were synthesized by hydrothermal-pyrolysis methods using cobalt chloride (CoCl2) and sodium carbonate (Na2O3) as the raw materials and sodium oleate (SOA) as the surfactant. The reaction process was followed by TG-DTA, XRD and SEM. The effect of hydrothermal time on the structure, the state of the products and the influence of structure on the photocatalytic performance were studied. The reaction mechanism was suggested. The results indicate that the hydrothermal time is the key to the morphology of the product. The catalytic performance is mainly related to the morphology of the final products. |
| Keywords: hydrothermal methods thermal decomposition Co3O4 reaction mechanisms photocatalysis |
| 投稿时间：2014-08-20 修订日期：2014-12-22 |
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| 李芸玲,李林枝,王淑会.前处理时间对Co3O4形貌及光催化性能的影响[J].无机化学学报,2015,31(3):472-478. |
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