Dissertation > Excellent graduate degree dissertation topics show

Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst

Author: XieLiShan
Tutor: YanGuiZuo
School: Fujian Normal University
Course: Applied Chemistry
Keywords: coprecipitation doped titanium dioxide methylene blue adsorption photocatalytic activity characterization
CLC: O614.411
Type: Master's thesis
Year: 2011
Downloads: 2
Quote: 0
Read: Download Dissertation


The paper probes into a series of modified nano-TiO2 via different preparation methods. The effects of different system variables like preparation conditions (sources of titanium、doping elements、doping ratioes、calcinable temperatures) and reaction conditions (different adsorbent dosage、pH value、photocatalytic activity) of catalysts are also investigated. The physicochemical properties of the catalysts are measured by XRD、TG-DTG、FT-IR、SEM、EDS、BET、UV-Vis DRS、XRF、TEM、XPS、ESR and ICP. The experimental results suggest that co-doped TiO2 synthesized via coprecipitation has an excellent ability in adsorbing, utilizing titanium tetrachloride as precursors, it also has photocatalytic activities in degradation of dye under visible light after adsorption. The Fe-V-TiO2 (the doped mole ratio of Ti:Fe:V is 1:0.15:0.3, calcined at 400℃for 2 h) exhibits the best adsorbtion activity on methylene blue (MB) solution. The decolourization rate of MB (100 ppm) surpasses 99.01% within 60 min dark reaction (the catalyst dosage is 1.50 g/L, in neutral condition). Its mineralization rate of MB rises to 89.56% within 8 h, which degrades the pollutants in wastewater effectively. The COD of actual high concentrated wastewater reduces from 1938 mg/L to 899.56 mg/L. Co-doped increases the specific surface area, and expands the response scope of TiO2 in visible light. Samples in the solutiion can produce much more O2-, which exhibits excellent oxidation ability. Fe-V-TiO2 sample can be acquired by mixing iron in Fe3+ form and vanadium in V5+ form. Such solution is of a much lower vanadium density than the maxium one in GB 3838-2000, which reveals that such a modified catalyst is of considerable significance in practical application.

Related Dissertations

  1. Density Functional Theory Study of Dimethyl Ether Adsorption on the Low-Index Pt Surface,O485
  2. Preparation of Based on the Phenolic Resin of Activated Carbon and Adsorption-Photopcatalytical Character of Supported TiO2,TQ424.19
  3. Competitive Adsorption of Phenolic/Ethanol onto Silica Fiber Effected by Ultrasound in RTM Process,TB332
  4. The convergence of mathematics teaching in primary and secondary schools under the new curriculum with the problem representation,G633.6
  5. Establishment of ELISA for Detecting Cd-MT of Pteria Penguin and Preliminary Study of ELISA-kit,X835
  6. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  7. ( Hydroxy) Iron Oxide and the removal of arsenic in drinking water,O614.811
  8. Under microaerobic conditions closed calcium carbide furnace exhaust COS gas adsorption purification,X781
  9. Ion Exchange Removal of Hexavalent Selenium in Raw Water,X703
  10. Characterization of Corn Lectin and Application to Screen of Growth-promoting Bacteria from Corn Rhizosphere,S513
  11. Study on the Chimisorption Removal of FCC Gasoline Sulfur Compound,TE624.55
  12. Preparationandapplication of Pan-Based Amphoteric Ion Exchange Fiber,TQ342.31
  13. Study on the Preparation of Medical Grade Glycerol from the By-product of Jatropha Biodiesel,TQ223.163
  14. Experiment Study of the Biogas Purification Process by Zeolite Filling Washing,TQ221.11
  15. Study on the Synthesis and Adsorption Behaviour of Chitosan Derivative,TS254.9
  16. Preparation of Activated Carbon from Tobacco Stems and Application for Low Concentration Phosphine Adsorption,X712
  17. Health-based and Ecological Risk Assessment of Contaminated Sites,X820.4
  18. Preliminary Research on Characterization of Thermophilic Protease Pasey and Helicase Htc16,Q814
  19. Cloning and Expression of Xylanase Gene from Thermobifida Halotolerans YIM 90462~T,Q78
  20. Investigation of Fabrication, Characterization and Property of Fuctional Titanium Dioxide Nanoporous Materials,TB383.1

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic > Catalyst
© 2012 www.DissertationTopic.Net  Mobile