| 氮铈共掺杂介孔TiO_2的制备及在造纸废水处理中的应用 |
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| 引用本文： | 章晓彤,周国伟,白光伟.氮铈共掺杂介孔TiO_2的制备及在造纸废水处理中的应用[J].中国造纸,2010,29(2). |
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| 作者姓名： | 章晓彤 周国伟 白光伟 |
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| 作者单位： | 山东轻工业学院化学工程学院,山东济南,250353 |
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| 基金项目： | 山东省自然科学基金重点项目，济南市留学人员创业计划 |
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| 摘 要： | 以钛酸四正丁酯为前躯体,用聚氧乙烯脂肪醇醚(Brij98)和十六烷基三甲基溴化铵(CTAB)作为复合模板剂,硝酸铈和尿素为掺杂离子给予体,通过改进的溶胶-凝胶法成功地制备了氮铈共掺杂介孔TiO2光催化剂。用X射线衍射(XRD)、透射电子显微镜(TEM)、傅里叶变换红外光谱(FT-IR)等分析手段对所得产物的结构和光学性能进行了表征。结果表明,所制备材料为锐钛矿晶型,具有7～10nm的均一孔径,掺杂能够阻止TiO2的相转变,提高TiO2介孔结构的热稳定性。当共掺杂催化剂含氮2%、铈2%(物质的量分数)时对造纸废水的光催化降解效果最佳,色度和CODCr的去除率分别达到100%和72%。
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| 关 键 词： | 介孔TiO2 氮铈共掺杂 复合模板剂 |
Preparation of N,Ce Co-doping Mesoporous TiO_2 and Its Application in Papermaking Wastewater Treatment |
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| ZHANG Xiao-tong,ZHOU Guo-wei,BAI Guang-wei.Preparation of N,Ce Co-doping Mesoporous TiO_2 and Its Application in Papermaking Wastewater Treatment[J].China Pulp & Paper,2010,29(2). |
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| Authors: | ZHANG Xiao-tong ZHOU Guo-wei BAI Guang-wei |
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| Affiliation: | ZHANG Xiao-tong ZHOU Guo-wei BAI Guang-wei(School of Chemical Engineering,Sh,ong Institute of Light Industry,Ji\'nan,Sh,ong Province,250353) |
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| Abstract: | On a composite surfactant template(Brij 98 and CTAB),nitrogen and cerium co-doped mesoporous TiO2 photocatalysts were synthesized by a modified sol-gel process using tetrabutyl titanate as the inorganic precursor,and urea and cerium nitrate as doping ion donors.The samples were characterized by X-ray diffraction(XRD),fourier transformed infrared spectroscopy(FT-IR)and transmission electron microscopy(TEM).The results showed that as-prepared materials possessed a anatase phase with a uniform pore size of 7~1... |
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| Keywords: | CODcr |
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