信息检索报告.docx

1、信息检索报告学校：南京工业大学学院：化学化工学院姓名：贾广楼 光催化降解废水中的有机物二、 背景自1972 年Fujishma1 等发现锐钛纳米T iO2微粒在紫外光照射下能分解水以来, 有关T iO2 等半导体光催化剂的研究成为30 年来环境科学领域的热点1 其中, 纳米T iO2 以其价廉无毒、具合适的禁带宽度、大的比表面积、高的化学稳定性、强的氧化还原能力以及能杀死微生物等优点, 受到了人们的广泛关注1 能被T iO2 光催化降解的有机废水及有机物的种类有: 染料废水, 农药废水, 表面活性剂, 氯化物, 油类等1 但是,由于T iO2 只有受到紫外光照射下才能形成电子空穴对, 且由于其

2、禁带较窄、电子空穴易复合等, 使得T iO2 的光催化活性还有待于进一步提高1 近年来, 有关纳米T iO2 负载膜技术的研究已成为光催化发展的一个重要方面1 我们在简单介绍光催化反映基本原理的基础上, 对T iO2 光催化氧化有机物的研究进行概述1二、 中外文数据库检索关键词光催化 降解 废水 有机物1、 中国知网数据库主页网址：http:/0-年限：（2001-2012）检索途径：全文检索式：光催化and降解and 有机物 and 废水题目1、 万方数据库资源数据库主页网址：年限：（取近11年）（2001-2012）限制类目：全部检索途径：全部检索式：光催化and降解and 有机物 and

3、 废水题录3.中文科技期刊数据库维普资讯网数据库主页网址：http:/210.38.32.192/Visitnew.asp 年限：（取近23年）（1989-2012） 限制类目： 全部检索途径：全部 检出篇数；58检索式：光催化and降解and 有机物 and 废水4、英文资源：(1)、Chemical Abstracts（化学文摘）：搜索过程：通过图书馆的Chemical Abstracts平台进行搜索，检索方法包括关键词检索，全文检索，期刊导航。搜索经过：1题目：Comparative degradation kinetics of alachlor in water by photoca

4、talysis with FeCl3, TiO2 and photolysis, studied by solid-phase disk extraction followed by gas chromatographic techniques.作者：Penuela, Gustavo A.; 单位：Barcelo, Damia (Department of Environmental Chemistry, CID-CSIC, c/Jordi Girona 18-26, Barcelona 08034, Spain). 来源：J. Chromatogr., A, 754(1+2), 187-19

5、5 (English) 1996 Elsevier CODEN: JCRAEY. ISSN: 0021-9673. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 5, 67, 742.题目：Photocatalytic degradation kinetics of humic acid in aqueous TiO2 dispersions: The influence of hydrogen peroxide and bicarbonate ion.作者：Bekbolet, Miray;

6、Balcioglu, Isil 单位：Institute Environmental Sciences, Bogazici University, Istanbul 80815, Turk. Water Sci. Technol., 34(9, Water Quality International 96, Part 5), 73-80 (English) 1996 Elsevier 来源：CODEN: WSTED4. ISSN: 0273-1223. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s

7、): 673.题目：Application of nanoparticles in the photocatalytic degradation of water pollutants.作者：Serpone, N.; Khairutdinov, R. F. 单位：Laboratory of Pure and Applied Studies in Catalysis, Environment and Materials, Department of Chemistry and Biochemistry, Concordia University, Montreal, PQ H3G 1M8, Ca

8、n. Stud. Surf. Sci. Catal., 103(Semiconductor Nanoclusters: Physical, Chemical, and Catalytic Aspects), 417-444 (English) 1997 Elsevier 来源：CODEN: SSCTDM. ISSN: 0167-2991. DOCUMENT TYPE: Journal; General Review 分类号：CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 74三、综述：光催化氧化

9、是一种有效的解决水和空气污染问题的方法。在光催化氧化的研究中,研制出了基于HPLC技术的高通量光催化降解有机物的反应装置,大大缩短了催化剂筛选的时间,然而他们的检测速度很难跟上反应的速度。因此,设计一套能实现光催化反应“现场直播”的组合化学反应器和快速检测系统成为当前比较重要的课题。、首先研制出了一套组合化学反应装置,然后根据己二胺能与胺基荧光剂反应生成荧光性物质的原理,建立了一套多通道荧光分析系统来分析己二胺的降解程度,并且用这种方法来评价催化剂。通过对比荧光成像检测技术和以甲基橙为反应液的紫外分光光度检测技术,我们发现两者的结果是吻合的,这证明了我们的检测方法的可靠性。利用这套组合化学反应

10、器和检测系统,我们可以最多同步检测121个样品,实现了催化剂筛选的批量化。然后,我们研究了聚合物P1(HO（CH2CH2O）20（CH2CH（CH3）O）70（CH2CH2O）20H)在紫外光和可见光下对催化剂反应活性的影响。选用比表面为1.73m2/g的二氧化硅作为催化剂的载体,我们采用溶胶-凝胶技术制备了同样组成的加聚合物P1的催化剂组和未加聚合物P1的常规催化剂组。实验结果表明,前者的催化活性整体上优于后者。同时,在加入聚合物P1的条件下,研究了掺杂ZrO2、Nb2O5和WO3的TiO2催化剂在紫外光照射下的反应活性。研究表明,添加ZrO2对TiO2的催化活性影响不大,而添加Nb2O5或

11、WO3时却增强了TiO2的催化活性。组成为2030%Nb2O5-1020%WO3-5070%TiO2催化剂表现出了最高的催化活性。此外,我们还对Nb2O5-WO3-ZrO2三元组分催化剂进行了研究,实验结果表明3040%WO3-6070%Nb2O5比传统的TiO2催化剂活性高。最后,我们研究了加入聚合物P1的催化剂组ZrO2-WO3-TiO2、V2O5-MoO3-TiO2、ZrO2-Nb2O5-WO3在可见光照射下的催化活性,研究表明,添加ZrO2对TiO2并没有增强TiO2的催化活性,而添加WO3却增强了TiO2的催化活性;在V2O5-MoO3-TiO2催化剂组中,活性最高区域为2030%T

12、iO2-3050%MoO3-4060%V2O5 ;在ZrO2-Nb2O5-WO3催化剂组中,添加ZrO2使得Nb2O5催化性能降低,当加入4090%的WO3时,Nb2O5的催化活性大大增加,其中,组成为80%WO3-20%Nb2O5催化剂表现出最高的催化活Photocatalysis degradation was proved to be an efficient approach for the purification of air and water. In this area developed a high throughput technology for photocataly

13、tic degradation of organic pollutant based on HPLC screening technology, and shorted the time for catalyst discovering, however the analysis rate of HPLC can not catch up the reaction rate. Hence, it is desired to design a real high throughput analysis method to meet the requirement of this investig

14、ation. we have designed a combinatorial reactor, and a fluorescence imaging analysis system, which can simultaneously conduct more than 100 catalytic reactions and analysis these samples in seconds. The results from our fluorescence imaging analysis were compared with that from the traditional UV me

15、thod. For the same catalysts, we have obtained the same results based on both of our fluorescence imaging analysis and the traditional UV analysis.In the current investigation, the influence of polymer P1 （HO（CH2CH2O）20（CH2CH（CH3）O）70（CH2CH2O）20H） employing in catalyst synthesis on catalytic behavou

16、r was explored. The polymer P1 acts as a template in the catalyst synthesis. The catalyst library was synthesized on a quartz sand substrat （specific surface area 1.73 m2/g）. It was proved that the catalysts prepared by using P1 as template were more active than the regular catalysts.The investigati

17、on indicate that under UV light, in both the P1 templated ZrO2-TiO2-Nb2O5-WO3 catalyst library and regular ZrO2-TiO2-Nb2O5-WO3 catalytic library, the addition of ZrO2 to TiO2 did not result in significant improvement in catalytic activities, whereas apparent improvement was observed when Nb2O5 or WO

18、3 was added into TiO2. When Nb2O5 and WO3 were co-doped into TiO2, the tertiary catalysts exhibited higher catalytic activities. The catalysts containing 2030% of Nb2O5 and 1020% ofWO3 （balanced with TiO2） are superior to any of pure TiO2, Nb2O5, WO3, and the binary catalysts composed of any two of

19、TiO2, Nb2O5, and WO3. Our study has demonstrated that besides the traditional TiO2-domain catalysts, active photo-degradation catalysts can be prepared by combination of Nb2O5, WO3, and ZrO2.The catalyst libraries ZrO2-WO3-TiO2, V2O5-MoO3-TiO2, and ZrO2-Nb2O5-WO3 prepared with P1 template were teste

20、d under visible light. Our study has demonstrated that ZrO2 to TiO2 did not result in significant improvement in catalytic activities, whereas marked improvement was observed when WO3 was added into TiO2;in the V2O5-MoO3-TiO2 catalyst library, catalyst with composition 2030%TiO2-3050% MoO3-4060%V2O5

21、 is the most active catalyst. In catalyst library ZrO2-Nb2O5-WO3, the addition of ZrO2 into Nb2O5 did not improve catalytic activities, but the employing of WO3 could enhance the catalytic activity of Nb2O5. The catalyst with composition 80%WO3-20%Nb2O5 showed the highest activity.参考文献：1 张立艳，张英锋，马子川

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