Catalysis

Engineering

Photochemistry

Materials science

Telecommunications

Computer science

Chemical engineering

Substrate (aquarium)

Geology

Oceanography

Visible spectrum

Nanotechnology

Organic chemistry

Oxygen

Hydrothermal circulation

Naphthalene

Degradation (telecommunications)

Doping

Thin film

Chemistry

Photocatalysis

Optoelectronics

Applied Catalysis B Environment and Energy

Ti3+ self-doped Fe2O3/TiO2 ultra-thin nanoflakes have been fabricated on Ti-substrate by a facile hydrothermal route. The high solar light harvest by Ti3+ and oxygen vacancies makes Ti3+ self-doped Fe2O3/TiO2 ultra-thin nanoflakes an attractive candidate for photo-activation of peroxymonosulfate (HSO5−) for the degradation of naphthalene (NAP). The Fe2O3/TiO2 ultra-thin nanoflakes synthesized with 0.053 M of FeCl3 (TF3) exhibited high concentrations of Ti3+ and oxygen vacancies. TF3/ HSO5−/solar light system showed substantial increases in the degradation of NAP with kapp value of 0.1384 min–1 compared to 0.057 min–1 when no HSO5− was added to the system. The proposed system also showed appreciable degradation of NAP in real water samples. Based on scavenger studies, SO4•−, •OH, h+ and O2•− are generated in the reaction system. Importantly, the toxicity results indicated that the proposed system (TF3/HSO5−/solar light) is an efficient treatment process for detoxifying water contaminated with NAP.

Solar light induced photocatalytic activation of peroxymonosulfate by ultra-thin Ti3+ self-doped Fe2O3/TiO2 nanoflakes for the degradation of naphthalene