Photodegradation of Methylene Blue by TiO₂

C₁₆H₁₈ClN₃S + TiO₂ + hν → CO₂ + H₂O + degradation products

Descripción general

TiO₂ photocatalysis generates hydroxyl radicals and superoxide ions that mineralize organic pollutants like methylene blue into CO₂, water, and simple inorganic ions. Methylene blue serves as a standard test dye for evaluating photocatalyst performance because its degradation is easily tracked by its visible blue color fading.

Participantes

Rol	Sustancia	Coeficiente	Estado
Producto	Carbon Dioxide CO₂	1	(g)
Producto	Water H₂O	1	(l)

Ejemplo cotidiano

Self-cleaning building facades use TiO₂ coatings that photocatalytically break down soot, smog deposits, and organic stains in sunlight.

Importancia industrial

Tecnología para el tratamiento de efluentes textiles con colorantes y la descontaminación fotocatalítica de aguas.

Propiedades

Tipo: Photochemical
Reversible: No
Energía: Exotérmico
Catalizador: TiO₂ (titanium dioxide)

Reacciones relacionadas

Photochemical Smog Formation (NO₂ Photolysis) Photochromism of Spiropyran Chlorophyll Fluorescence Photodissociation of Chlorine Gas Silver Bromide Photodecomposition Cis-Trans Isomerization of Retinal Photosynthesis Ozone Formation by UV Light Silver Chloride Photodecomposition Dye-Sensitized Solar Cell (Grätzel Cell)

Frequently Asked Questions

What is the equation for Photodegradation of Methylene Blue by TiO₂?

The balanced equation is: C₁₆H₁₈ClN₃S + TiO₂ + hν → CO₂ + H₂O + degradation products.

What type of reaction is Photodegradation of Methylene Blue by TiO₂?

Photodegradation of Methylene Blue by TiO₂ is a photochemical reaction.

Is Photodegradation of Methylene Blue by TiO₂ exothermic or endothermic?

Photodegradation of Methylene Blue by TiO₂ is exothermic (releases energy).

What conditions are needed for Photodegradation of Methylene Blue by TiO₂?

This reaction requires a catalyst (TiO₂ (titanium dioxide)).