Photodegradation of Methylene Blue by TiO₂

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

Visão geral

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

Papel	Substância	Coeficiente	Estado
Produto	Carbon Dioxide CO₂	1	(g)
Produto	Water H₂O	1	(l)

Exemplo do cotidiano

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

Importância industrial

A fotocatálise com TiO₂ é utilizada na purificação de água, no tratamento de ar, em superfícies autolimpantes e em revestimentos antibacterianos.

Propriedades

Tipo: Photochemical
Reversível: Não
Energia: Exotérmico
Catalisador: TiO₂ (titanium dioxide)

Reações relacionadas

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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)).