Photodegradation of Methylene Blue by TiO₂

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

개요

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.

참여 물질

역할 물질 계수 상태
생성물 Carbon Dioxide CO₂ 1 (g)
생성물 Water H₂O 1 (l)

일상 속 예시

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

산업적 중요성

TiO₂ 광촉매작용은 수질 정화, 공기 정화, 자가 세척 표면, 항균 코팅에 사용됩니다.

성질

유형
Photochemical
가역 반응
아니오
에너지
발열
촉매
TiO₂ (titanium dioxide)

관련 반응

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)).