Related Experiment Video
Updated: Jan 30, 2026
07:13
Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
Published on: November 15, 2016
10.6K
Zeolite-Based Antifogging Coating via Direct Wet Deposition
Wan-Ju Hsu1, Pei-Sun Huang1, Yi-Chen Huang1
1Department of Chemical Engineering , National Taiwan University , Taipei 10617 , Taiwan, ROC.
Langmuir : the ACS Journal of Surfaces and Colloids
|January 24, 2019
Summary
Researchers developed a direct wet deposition method for creating zeolite MFI films on glass for antifogging coatings. Film performance, including antifogging properties, improved with zeolite crystallinity and amorphous silica content.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Chemistry
Background:
- Zeolites are hydrophilic materials used as water adsorbents.
- Zeolites show potential for antifogging coatings.
- Coating glass substrates with zeolite films remains a challenge.
Purpose of the Study:
- To develop a direct wet deposition technique for zeolite films on glass.
- To investigate the relationship between film properties and antifogging performance.
- To optimize zeolite film composition for transparency and antifogging.
Main Methods:
- Synthesized pure silica zeolite MFI via hydrothermal reactions.
- Prepared cast solutions of zeolite MFI.
- Applied solutions to glass substrates using spin-on deposition.
- Characterized films for transmittance, topography, morphology, crystallinity, wetting, and antifogging properties.
Main Results:
- Developed a method to cast zeolite MFI films on glass without harsh chemicals.
- Hydrophilicity and antifogging capabilities increased with zeolite MFI crystallinity.
- Amorphous silica content was found to be critical for film transparency.
- Optimal antifogging performance requires a balance of zeolite crystals and amorphous silica.
Conclusions:
- Direct wet deposition offers a viable route for fabricating zeolite-based antifogging coatings on glass.
- Zeolite film crystallinity and amorphous silica content are key factors for high-performance antifogging applications.
- Further optimization of zeolite MFI film composition can lead to advanced transparent antifogging surfaces.
More Related Videos
Related Concept Videos
02:33Phase Transitions: Sublimation and Deposition
20.1K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
20.1K
01:32Pinching-off of Coated Vesicles
4.2K
Vesicle budding is orchestrated by distinct cytosolic proteins such as adaptor proteins, coat proteins, and GTPases. To initiate vesicle budding, membrane-bending proteins containing crescent-shaped BAR domains bind to the lipid heads in the bilayer and distort the membrane to form a protein-coated vesicle bud. Adaptors proteins such as AP2 for clathrin-coated vesicles can nucleate on the deformed membrane. Finally, coat proteins such as clathrin or COPI and COPII assemble into a coat forming...
4.2K
01:12Clathrin Coated Vesicles
9.3K
Clathrin-coated vesicles use endocytosis to transport receptors and lysosomal hydrolases from the Golgi to the lysosome in the late secretory pathway. Clathrin-mediated endocytosis was the first described endocytic process, and Clathrin-coated vesicles remain one of the most well-studied transport vesicles. The molecular machinery that generates clathrin-coated vesicles comprises over 50 proteins that precisely coordinate vesicle formation. Cell surface receptors concentrated in indented sites...
9.3K
00:59COP Coated Vesicles
18.2K
Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of...
18.2K
01:33Coat Assembly and GTPases
4.4K
Vesicles incorporate different coat protein subunits in different cell locations, which changes the properties of the coat, such as the shape and geometry of the transport vesicles. Thus, vesicle coat proteins also play a significant role in cargo selection.
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
4.4K
01:09Directing Effect of Substituents: meta-Directing Groups
6.0K
Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.0K