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| 1 | Photocatalytic degradation of trace-level of Microcystin-LR by nano-film of titanium dioxide显示文摘Microcystins, a group of hepatotoxin produced by cyanobacteria in eutrophic freshwater, have proven unreliable to be removed by conven-tional treatments. In this study, the photocatalytic degradation experiments of Microcystin-LR were conducted using nano-TiO2 thin film, prepared by sol- gel and dip-coating method, with low UVA intensity irradiation. Analysis results from SPE (solid-phase extraction) combined with HPLC method showed that Microcystin-LR whose initial concentration (μg/L) around that occurs naturally was easily to be re-moved by photocatalytic system. The degradation efficiency of toxin was influenced by the pH condi-tions, initial concentration and UV intensity. The maximum initial rate of photocatalytic degradation occurred at pH 4 and over 95% of 20 μg/L Micro-cystin-LR was decomposed within 120 min under 400μW/cm2 UV illumination. The kinetic equations and parameters revealed that degradation reaction of trace level MC-LR, which was depicted by Langmuir- Hinshelwood kinetics model, was in accordance with pseudo first order kinetics process in appearance well. Under the condition of pH=6.7, irradiation inten-sity=400 μW/cm2 and initial concentration=20 μg/L, the corresponding pseudo-first-order rate constant k and half-life were determined to be 0.0157 min?1 and 44 min, respectively. During the range of 200―1000 μW/cm2, the degradation rate increases with incident intensity to the 0.82 power and the corresponding apparent quantum yield (Φapp) was found to be 5.19× 10-8 g/J approximately. | FENG Xiaogang RONG Fei FU Degang YUAN Chunwei HU Yan | 2006 | Chinese Science Bulletin2006，51，10： | 8 |
| 2 | A single TiO_(2)-coated side-glowing optical fiber for photocatalytic wastewater treatment显示文摘By means of TiO2-layer-on-SiO2-layer, anatase TiO2 was deposited on novel side- glowing optical fibers, which can provide side UV radiation along the whole fiber length. FE-SEM images show that the double layers adhered well to the side-glowing optical fiber, and the TiO2 coating was homogeneous and smooth. The decomposition reaction of reactive brilliant red dye X-3B on a single TiO2-coated side-glowing optical fiber indicated that the side-scattering UV light intensity was strong enough for photocatalytic oxi-dation reaction. Therefore, TiO2-coated side-glowing optical fibers open up a new way to use the optical fiber reactor in photocatalytic wastewater treatment. | HU Yan XU Jingjing YUAN Chunwei LIN Jian YIN Zhidong | 2005 | Chinese Science Bulletin2005，50，18： | 7 |
| 3 | Low-temperature Preparation of Photocatalytic TiO_2 Thin Films on Polymer Substrates by Direct Deposition from Anatase Sol显示文摘锐钛矿 TiO_2 大音阶的第五音被 titanium-n-butoxide 的水解作用在丰富的酸的水溶液和随后的倒流在温和条件(75 deg C 和周围的压力) 下面综合提高结晶化。在房间温度并且在周围的空气,水晶的 TiO_2thin 电影在 polymethylmethacrylate (PMMA ) 上被扔,从由 dip-coating 的同样准备的 TiO_2 大音阶的第五音的 SiO_2 涂的 PMMA 和 SiO_2-coatedsilicone 橡胶底层处理。在聚合物底层上的 TiO_2 薄电影以前的 SiO_2 层不能仅仅保护底层免受 TiO_2 薄电影的 thephotocatalytic 分解的伤害而且提高 TiO_2 薄电影的粘附到底层。地排放类型扫描电子显微镜(FE-SEM ) 调查表明填写 TiO_2 薄电影的 nanoparticles 的平均粒子尺寸是大约 35 约 47 nm。TiO_2 薄电影在充气条件下面在水溶液在反应灿烂的红染料 X-3B 的降级展出了高相片催化活性。相片的 Thepreparation 过程聚合物底层上的催化 TiO_2 薄电影相当简单并且一条低温度线路。 | Van HU Chunwei YUAN | 2006 | Journal of Materials Science & Technology2006，22，2： | 3 |
| 4 | Enhanced photocatalytic activity of fluorine doped TiO 2 by loaded with Ag for degradation of organic pollutants显示文摘 | Xiaoxia Lin Fei Rong Degang Fu Chunwei Yuan | 2011 | Powder Technology2011，，： | 2 |
| 5 | Characterization and photocatalysis of Eu3+ -TiO2 sol in the hydrosol reaction system显示文摘 | Yibing Xie Chunwei Yuan | 2004 | Materials Research Bulletin2004，39，： | 1 |
| 6 | Low-temperature preparation of F-doped TiO2 film and its photocatalytic activity under solar light显示文摘 | Jingjing Xu Yanhui Ao Degang Fu Chunwei Yuan | 2008 | Appl Surf Sci2008，254，： | 1 |
| 7 | Characterization and photocatalysis of Eu^3+ -TiO2 sol in the hydrosol reaction system 显示文摘 | Xie Yibing Yuan Chunwei | 2004 | Materials Reseach Bulletin2004，39，： | 1 |
| 8 | A simple method to prepare N-doped titania hollow spheres with high photocatalytic activity under visible light显示文摘 | Yanhui Ao Jingjing Xu Degang Fu Chunwei Yuan | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 9 | Photocatalytic degradation of X-3B dye by visible light using lanthanide ion modified titanium dioxide hydrosol system显示文摘 | Xie Yibinging Yuan Chunwei Li Xiangzhong | | 0，，： | 1 |
| 10 | Photocatalytic degradation of X-3B dye by visible light using lanthanide ion modified titanium dioxide hydrosol system显示文摘 | Xie Yibing Yuan Chunwei Li Xiangzhong | 2005 | Colloids and Surfaces A:Physicochemical and Engineering Aspects2005，252，1： | 1 |
| 11 | A simple method to prepare N-doped titania hollow spheres with high photocatalytic activity under visible light显示文摘 | Yanhui Ao Jingjing Xu Degang Fu Chunwei Yuan | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 12 | Characterization and Photocatalysis of Eu^3+-TiO2 Sol in the Hydrosol Reaction System显示文摘 | Yibing Xie Chunwei Yuan | 2004 | Material Research Bulletin2004，，39： | 1 |
| 13 | Characterization and photocatalysis of Eu3+ -TiO2 sol in the hydrosol reaction system显示文摘 | Xie Yibing Yuan Chunwei | 2004 | Materials Reseach Bulletin2004，，39： | 1 |
| 14 | Photocatalytic degradation of X-3B dye by visible light using lanthanide ion modified titanium dioxide hydrosol system显示文摘 | Yibing Xie Chunwei Yuan Xiangzhong Li | 2004 | Colloids and Surfaces A: Physicochemical and Engineering Aspects2004，，1： | 1 |
| 15 | 显示文摘 | Xie Yibing Yuan Chunwei | 2004 | Materials Research Bulletin2004，39，： | 1 |
| 16 | 显示文摘 | Xie Yibing Yuan Chunwei | 2004 | Applied Surface Science2004，221，： | 1 |
| 17 | 显示文摘 | Xie Yibing Yuan Chunwei Li Xiangzhong | 2005 | Colloids Surf A2005，，252： | 1 |
| 18 | Characterization and photocatalysis of Eu3 + - TiO2 sol in the hydrosol reaction system显示文摘 | Xie Yibing Yuan Chunwei | 2004 | Mater Res Bull2004，，39： | 1 |
| 19 | Visible-light responsive cerium ion modified titania sol and nanocrystallites for X-3B dye photodegrada- tion 显示文摘 | XIE Yibing YUAN Chunwei | 2003 | Appl Cataly B2003，46，： | 1 |
| 20 | Visible-light responsive cerium ion modified titania sol and nanocrystallites for X-3B dye photode- gradation 显示文摘 | Xie Yibing Yuan Chunwei | 2003 | Applied Catalysis B : Environmental2003，46，2： | 1 |
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