Understanding ZnO Photocorrosion & Techniques for Analysis | Rohini

  • Thread starter Thread starter rohinikitture
  • Start date Start date
Click For Summary
SUMMARY

The discussion focuses on the photocorrosion of Zinc Oxide (ZnO) in photocatalytic applications, specifically in the degradation of Methyl Orange dye. Photocorrosion refers to the chemical reaction induced by light, leading to the transformation of ZnO into Zn(OH)2 in aqueous environments. Techniques such as Fourier Transform Infrared Spectroscopy (FTIR) are suggested for detecting the formation of Zn(OH)2, although alternative methods may also be considered for quantitative analysis.

PREREQUISITES
  • Understanding of photocatalysis and its applications
  • Knowledge of photocorrosion phenomena
  • Familiarity with Fourier Transform Infrared Spectroscopy (FTIR)
  • Basic chemistry of Zinc Oxide and its reactions in aqueous solutions
NEXT STEPS
  • Research the mechanisms of photocorrosion in ZnO under various light conditions
  • Learn about alternative detection methods for Zn(OH)2 formation, such as UV-Vis spectroscopy
  • Explore quantitative analysis techniques for photocatalytic efficiency
  • Investigate the stability of ZnO in different chemical environments
USEFUL FOR

This discussion is beneficial for researchers and students in materials science, environmental chemistry, and chemical engineering, particularly those focusing on photocatalytic processes and the stability of photocatalysts like ZnO.

rohinikitture
Messages
2
Reaction score
0
Hope I will get help in this regard.

I am studying application of ZnO for photocatalysis, dye degradation. I came across a comment that ZnO also shows photocorrsion.

I wish to know what do they mean by Photocorrosion, and is there any technique to know whether it occurs or not. And if yes, then is there any method for its quantitative analysis.

Rohini
 
Engineering news on Phys.org
In what environment is the ZnO. Corrosion normally implies a chemical reaction. Light may promote a photochemical reactions, e.g., ZnO + H2O + light => Zn (OH)2 (aq). Otherwise, perhaps this might be erosion or evaporation.
 
@Astronuc
Thank you for the reply...
I am using ZnO in water, that already contains dye-Methyl Orange.
If there is formation of Zn(OH)2, then will it be possible to detect it thru FTIR? or should I choose some other technique?
 

Similar threads

Exploring End-Use Applications for recycled HDPE from used oil containers
  • · Replies 2 ·
Replies
2
Views
2K
Quantitative Risk Assessment Of buried crude Oil Pipelines
  • · Replies 7 ·
Replies
7
Views
4K
Analysis Study plan for Functional Analysis - Recommendations and critique
  • · Replies 13 ·
Replies
13
Views
5K
Inverse Kinematics: Oscillators and Multi-Bar Links
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Why is saxophone growling produced by modulation of the sound waves?
  • · Replies 92 ·
4
Replies
92
Views
5K
Courses Deciding What Math Courses to Take Next
  • · Replies 21 ·
Replies
21
Views
3K
Synhelion -- Using solar heliostat farms to create liquid fuels from Water Vapor and CO2
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad What is the Purpose of Modal Analysis in Mechanical Systems?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Justification (or philosophy) of modal analysis
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Discussion on Astronomical Prime Numbers and Re-evaluating the Primali
  • · Replies 5 ·
Replies
5
Views
2K