范文编号:SW129 范文字数:11761,页数:31 摘要 :本文以正庚烷、钛酸丁酯、异戊醇为主要原料,再掺入一些金属元素,通过微乳法,经过微波烘干、焙烧制备合成纳米光催化剂TiO2。通过使用BET、XRD、SEM、纳米激光粒度分析等手段,对所制备的催化剂的比表面积、晶相结构、粒子大小和粒子的形貌进行了表征,并且将催化剂使用于甲基蓝染料的降解反应。实验结果显示:加入的异戊醇的量越多比表面积就越小,而掺入铁会使TiO2的比表面积增大,但是却降低了对甲基蓝溶液的降解效率。掺Fe及未掺杂任何物质所合成纳米光催化剂TiO2,明显的增加了对甲基蓝溶液的降解率。从XRD、SEM图中可以知道所有样品都是以锐钛矿晶型为主。 TiO2 microemulsion Preparation and methylene blue dye degradation Abstract : The main raw material of Preparation of Catalyst is heptane, n-butyl titanate and isoamyl alcohol.Then Photocatalyst was synthesized by doping some metal elements in microemulsion and using microwave drying. Through the use of BET, XRD, SEM, nanotechnology laser particle size analysis, and other means ,we can token the specific surface area, crystalline structure, particle size and particle morphology of characterization, and the catalyst used in the methylene blue dye degradation. The experimental results show that : joining the isoamyl alcohol, the more surface area than the smaller, and the incorporation of iron will TiO2 surface area increases, but lowered the methylene blue solution to the degradation efficiency. Fe-doped and undoped any material synthesized samples , marked increasing in the methylene blue solution to the degradation rate. XRD, SEM can be aware of all the samples are anatase crystal type. 目录
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