Dissertation > Excellent graduate degree dissertation topics show

Electrocatalytic Oxidation Degradation of p-nitrophenol

Author: ZhangXiaoXue
Tutor: XinBaiFu
School: Heilongjiang University
Course: Analytical Chemistry
Keywords: p-nitrophenol electro-oxidation degradation mechanism indirect electro-oxidation
CLC: X703
Type: Master's thesis
Year: 2011
Downloads: 90
Quote: 0
Read: Download Dissertation


In this paper, the electrocatalysts oxidation technology of p- nitrophenol polluted water had beeen studied. The p-nitrophenol was electrolyzed with constant electronic current in three-electrode non-membrane electrolytic cell with Ti/PbO——2 as anode, Ti plate as cathode, and saturated potassium chloride calomel electrode as reference electrode. The optimal conditions of temperature and pH, current density and PNP initial concentration were determined by orthogonal design experiments and change in single factor experiments. The results showed the most suitable conditions of electricity catalytic oxidation degradation of PNP is: PNP initial concertration is 1.0mmol/L, solution pH is 5, electrolysis temperature is 35℃, and current density is 40 mA/cm2. Under these conditions, when the electrolysis time is 2.5 hour, the degradation ratio of PNP has reached 92.37 %.With high-performance liquid chromatography inspected in the process of electrolysis, the PNP and its degradation products of the middle of the electrolysis time change, then speculated the PNP degradation mechanism.To further increase the degradation ratio of PNP, some anions and cations were added to the electrolyte. The results show that Fe2+, Ni2+, Co2+ and Cl-, ClO-, BrO3- all can promote the degradation of the PNP, in another word, that has significantly improved compared to the direct electro-oxidation of PNP under the same conditions. Applied HPLC and HPIC to research PNP and its degradation products, and speculated the mechanism of indirect electro-oxidation of PNP.

Related Dissertations

  1. Process and Mechanism of Eucalyptus Pulp Bleaching Catalysed by Cu2+/Co2+,TS745
  2. Nano Pt / SiC Preparation, Characterization and Electrochemical Catalytic Performance,TM911.4
  3. Nano- Pd catalytic oxidation of formic acid,O643.32
  4. Microbial fuel cell system processing nitrophenol Wastewater,X703
  5. Study on the Refractory and Toxic Wastewater with Microbial Fuel Cell,X703
  6. Study of Treating Wastewater by Attapulgite Clay Immobilized Horseradish Peroxidase,X703
  7. Study on Treating Organic Waste-water by Photoelectrocatalytic Oxidation Pillared Clay Mineral Materials,X703
  8. Preparation of Functional Polymeric Membrane and Application in Electro-synthesis Process,TB383.2
  9. Isolation and Characterization of a Pseudomonas putida Strain Degrading Para–Nitrophenol,X172
  10. Metaproteomics Analysis and Identification of Lignocellulose Degradation-related Enzymes,Q93
  11. Study on Treatment of Lead 2,4, 6-trinitroresorcinate Wastewater Internal Electrolysis,X703
  12. The Electrochemical Study on Determination of Deoxyribonucleic Acid,R341
  13. Preparing Gold Nanoparticles Using Aspergillus Niger Spores as Templates and Its Catalytic Property,TB383.1
  14. Assembly and Magnetic Research of In-situ Modified Nano-YBCO Prepared by Pulsed Laser Ablation in Gas,TB383.1
  15. Application of Quantum Dots and Its Surface Imprinting Polymers to Chemiluminescence Analytical Method,O631.3
  16. Study on the Preparation of Modified Zeolite and Its Adsorption Ability of p-Nitrophenol in Polluted Water,X703
  17. Methyl parathion degrading Bacterium and hydrolase gene expression,X172
  18. The Research of Electro-Catalytic Oxidation for Nitrophenol in Aqueous Solution on Modified SnO2 Anodes,X703.1
  19. Study on the Mechanism of Polyamide Membrane Degradation and Grafting Modification with ADMH,X703
  20. Study on Supercritical/Subcritical Water Oxidation of p-Nitrophenol Wastewater,X703
  21. The Characterization and Crystal Structures Analysis of Three β-Cyclodextrin Inclusion Complexes,O731

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
© 2012 www.DissertationTopic.Net  Mobile