NiO/Ba2CaWO6的合成及其光催化分解水性能

材料科学与工程学报, 2009, 27(1): 65-68.

NiO/Ba2CaWO6的合成及其光催化分解水性能

刘清涛 ^1, , 王桂赟 ^2, , 王延吉 ^3, , 邬长城 ^4,

1.河北工业大学化工学院,天津,300130

2.河北工业大学化工学院,天津,300130

3.河北工业大学化工学院,天津,300130

4.河北工业大学化工学院,天津,300130

基金项目: 河北省自然科学基金(B2006000012)

关键词：半湿法 , 双钙钛矿 , 光催化 , 分解水 , 制氢

Synthesis and Photocatalylic Activity of NiO/Ba2 CaWO6 for Water Splitting

以半湿法合成了双钙钛矿类物质Ba2CAWO6,对前驱体进行了热失重-差热分析,对焙烧样品进行了X射线衍射及扫描电镜分析.通过等体积浸渍法制备了NiO/Ba2CaWO6负载型催化剂,并对其光催化分解水均活性进行了测试.实验着重考察了前驱体pH值对Ba2CaWO6性能的影响,结果显示:合成前驱体的pH值增赶,样品的杂质含量增大,光催化活性降低.选择较适宜的制备条件,即前驱体pH值为7,1000℃焙烧处理6h可以制得结晶完整性较好,CaO6,WO6八面体排列有序性较高的Ba2CaWO6晶体,上述晶体负载0.1%的NiO后具有分解水制氢的光催化活性.

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材料期刊网

NiO/Ba2CaWO6的合成及其光催化分解水性能

Synthesis and Photocatalylic Activity of NiO/Ba2 CaWO6 for Water Splitting

参考文献