在醇-水体系中以P123为模板、硝酸铈和草酸为原料,利用水热法制备了棒束状纳米CeO2粉体,研究了反应温度、硝酸铈与草酸的物质的量比(nCH)、溶液pH以及反应时间对CeO2粉体颗粒的影响,确定了制备棒束状纳米CeO2粉体的最佳工艺参数;将最佳工艺参数下制得的CeO2对酸性品红溶液进行催化降解试验,并与块状CeO2催化降解结果进行对比.结果表明:制备棒束状纳米CeO2的最佳工艺参数为200℃、nCH=2∶3、pH=1、反应时间360min;在此最佳工艺参数下制备的棒束状纳米CeO2对酸性品红溶液的催化活性比普通块状CeO2的大大提高.
参考文献
| [1] | 陈杨,隆仁伟,陈志刚,陆锦霞.不同壳厚聚苯乙烯/氧化铈复合磨料的合成及其抛光特性[J].机械工程学报,2011(14):70-75. |
| [2] | Pan, CS;Zhang, DS;Shi, LY .CTAB assisted hydrothermal synthesis, controlled conversion and CO oxidation properties of CeO2 nanoplates, nanotubes, and nanorods[J].Journal of Solid State Chemistry,2008(6):1298-1306. |
| [3] | Zhijie Yang;Yanzhao Yang;Hui Liang;Ling Liu .Hydrothermal synthesis of monodisperse CeO_2 nanocubes[J].Materials Letters,2009(21):1794-1796. |
| [4] | Zhiyan Guo;Fangfang Jian;Fanglin Du .A simple method to controlled synthesis of CeO_2 hollow microspheres[J].Scripta materialia,2009(1):48-51. |
| [5] | LI Xiazhang,CHEN Feng,LU Xiaowang,NI Chaoying,CHEN Zhigang.Modified-EISA synthesis of mesoporous high surface area CeO_2 and catalytic property for CO oxidation[J].稀土学报（英文版）,2009(06):943-947. |
| [6] | Ren-Jiang La;Zhong-Ai Hu;Hu-Lin Li .Template synthesis of CeO_2 ordered nanowire arrays[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):145-148. |
| [7] | CHEN Feng,WANG Wei,CHEN Zhigang,WANG Taibin.Biogenic synthesis and catalysis of porous CeO2 hollow microspheres[J].稀土学报（英文版）,2012(04):350-354. |
| [8] | CUI Qizheng,DONG Xiangting,WANG Jinxian,LI Mei.Direct fabrication of cerium oxide hollow nanofibers by electrospinning[J].稀土学报(英文版),2008(05):664-669. |
| [9] | Yang XG;Shao CL;Liu YC;Mu RX;Guan HY .Nanofibers of CeO2 via an electrospinning technique[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2005(1/2):228-231. |
| [10] | 栾宝平,余锡宾,刘洁,王立同,华庆松,周祥.不同形貌的CeO2的水热法制备及表征[J].上海师范大学学报（自然科学版）,2011(02):157-162. |
| [11] | 位忠斌,崔育倩,郭培志,顾毅,张国梁,赵修松.二氧化铈八面体的水热合成与表征[J].无机化学学报,2011(07):1399-1404. |
| [12] | Xiaowang Lu;Xiazhang Li;Feng Chen .Hydrothermal synthesis of prism-like mesocrystal CeO_2[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):958-962. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%