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Smart Materials: Photocatalytic Self-Cleaning in Building Construction

16 Questions

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Smart Materials: Photocatalytic Self-Cleaning in Building Construction

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Questions and Answers

What is the primary effect of photocatalytic self-cleaning?

Improves dirt resistance on surfaces

Increases dirt adhesion on surfaces

Reduces dirt adhesion on surfaces (correct)

Does not affect dirt adhesion on surfaces

What is the impact of photocatalytic self-cleaning on the use of detergents?

The use of detergents is eliminated

More detergents are required

Fewer detergents are required (correct)

No impact on detergent use

Which material is usually used as a catalyst in the photocatalytic reaction?

Aluminum oxide (Al2O3)

Silicon dioxide (SiO2)

Zinc oxide (ZnO)

Titanium dioxide (TiO2) (correct)

What is required for the function of photocatalytic self-cleaning to work?

UV light, oxygen, and air humidity Signup and view all the answers

What happens to water on conventional tiles before being treated with nano photocatalysis?

Forms droplets that dry leaving behind dirt deposits Signup and view all the answers

What does the coating used in nano photocatalysis look like when applied to glass?

Transparent and invisible Signup and view all the answers

What makes TiO2 a highly reactive catalyst?

Its nanoscalar dimension Signup and view all the answers

Where are photocatalytic self-cleaning surfaces generally more effective?

Outdoors than indoors Signup and view all the answers

What benefits does a photocatalytic self-cleaning glass offer?

Best possible view and self cleaning function Signup and view all the answers

What are the features of Easy-to-Clean (ETC) surfaces?

Smooth, with lower force of surface attraction and well-suited for use in bathrooms Signup and view all the answers

What is the main benefit of the 'Roll-out marble' product?

Impact resistance and fire retardance Signup and view all the answers

In what type of environments is the antibacterial property of surfaces particularly beneficial?

Health care environments Signup and view all the answers

What makes the nanoceramic wall covering particularly robust?

Flexibility and impact resistance Signup and view all the answers

'Silver nanoparticles' are used for manufacturing surfaces specifically designed to be:

Antibacterial Signup and view all the answers

What is the main difference between TiO2 PVC and PVC coated white membranes in weathering tests?

TiO2 PVC remains white, while PVC coated white membranes turn grey. Signup and view all the answers

What can be inferred about the flexibility of ETC ceramic wall coverings?

They can withstand direct exposure to water, such as that in a shower cubicle. Signup and view all the answers