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| 介孔TiO2-SiO2的制备及光催化降解黑液的影响因素 | |
| 引用本文： | 林会亮,周国伟,刘颖,孟庆海.介孔TiO2-SiO2的制备及光催化降解黑液的影响因素[J].中华纸业,2007,28(3):67-70. |
| 作者姓名： | 林会亮 周国伟 刘颖 孟庆海 |
| 作者单位： | 1. 山东轻工业学院制浆造纸工程省级重点学科,山东,济南,250100 2. 山东轻工业学院化工学院,山东,济南,250100 3. 华东理工大学化工学院,上海,200237 |
| 基金项目： | 教育部科学技术研究重点项目（No.205088）;教育部留学归国人员科研基金;山东省中青年科学家科研奖励基金（No.2004BS04009）;山东省教育厅科研发展计划项目（No.J05D10）. |
| 摘 要： | 以钛酸四丁酯（TBOT）为钛源，正硅酸乙酯（TEOS）为硅源，三嵌段共聚物（P125）为模板剂，溶胶-凝胶法合成了具有不同钛硅摩尔比的介孔TiO2-SiO2，用小角X射线衍射（SAXRD）、X射线粉末衍射（XRD）、透射电子显微镜（TEM）、红外（FT-IR）等分析手段对产物结构和光学性能进行了表征。考察了催化剂的种类、光照时间、催化剂的用量、初始pH、通氧方式等对降解制浆黑液的影响因素。结果表明：介孔TiO2-SiO2（Ti／Si=100：1）具有较高的催化活性，在催化剂用量为1．5g／L、初始pH=6、连续通氧条件下降解效果最佳，光照反应12h后，黑液CODCr及色度的去除率分别达94．9％和97．6％． |
| 关 键 词： | 介孔Ti02-SiO2 光催化降解 造纸黑液 |
| 文章编号： | 1007-9211（2007）03-0067-04 |
| 收稿时间： | 2006-08-09 |
| 修稿时间： | 2006年8月9日 |
Synthesis of mesoporous TiO2-SiO2 and the influencing factors photodegradation of papermaking black liquor |
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| LIN Hui-liang,ZHOU Guo-wei,LIU Ying,MENG Qing-hai.Synthesis of mesoporous TiO2-SiO2 and the influencing factors photodegradation of papermaking black liquor[J].China Pulp & Paper Industry,2007,28(3):67-70. | |
| Authors: | LIN Hui-liang ZHOU Guo-wei LIU Ying MENG Qing-hai |
| Affiliation: | 1. Provincial Key Discipline of Pulp and Paper Engineering, Shandong Institute of Light Industry, Jinan 250100, Shandong, China 2.School of Chemical Engineering, Shandong Institute of Light Industry Jinan 250100, Shandong, China; 3.School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
| Abstract: | Mesoporous TiO2-SiO2 photocatalysts (with different molar ratio of Ti/Si) has been successfully synthesized by using nonionic triblock copolymer (P123) as template agent via sol-gel reactions of tetrabutyl titanate (TBOT) and tetraetethyl orthosilicate (TEOS), then the prepared materials were characterized by SAXRD, XRD, TEM and FT-IR. The influencing factors on the degradation of black liquor such as the kinds of catalyst, light application time, catalyst dosage, initial pH value, aerating mode etc. were investigated. The results show that mesoporous TiO2- SiO(2Ti/Si=100:1)had a higher catalytic activity and the optimal degradation effect was achieved when catalyzer dosage was 1.5g/L, the initial pH of 6 with continuous aerating and the CODCr and chroma removal rate for the black liquor was 94.9% and 97.6% respectively after 12 h irradiation. |
| Keywords: | CODCr |
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