Photodegradation of Methylene Blue by TiO₂

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

Обзор

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.

Участники

Роль	Вещество	Коэффициент	Состояние
Продукт	Carbon Dioxide CO₂	1	(g)
Продукт	Water H₂O	1	(l)

Пример из жизни

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

Промышленное значение

TiO₂ photocatalysis is used in water purification, air treatment, self-cleaning surfaces, and anti-bacterial coatings.

Свойства

Тип: Photochemical
Обратимая: Нет
Энергия: Экзотермическая
Катализатор: TiO₂ (titanium dioxide)

Связанные реакции

Cis-Trans Isomerization of Retinal Silver Chloride Photodecomposition Luminol Chemiluminescence Firefly Bioluminescence (Luciferin Oxidation) Photolysis of Water (Vacuum UV) Photochemical Smog Formation (NO₂ Photolysis) Photodissociation of Chlorine Gas Silver Bromide Photodecomposition Photosynthesis Chlorophyll Fluorescence

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)).