Carbon-doped TiO2 film to enhance visible and UV light photocatalytic degradation of indoor environment volatile organic compounds

Photocatalytic nanocomposites of titanium dioxide (TiO2) were prepared by hydrothermal method. Reduced graphene oxide (RGO) was applied to prepare various TiO2 composites of doped nanoparticles by using NH4Cl and FeCl3 as sources. The structure and morphology of these composites showed that TiO2 was loaded on surface of RGO. Meanwhile, the agglomeration of TiO2 decreased and the dispersion became uniform for doped materials. Under ultraviolet (UV) light irradiation, the photocatalytic degradation of volatile organic compounds (VOC) by RGO/TiO2 composites with codoping of N and Fe reached to 90.5%. The photocatalytic degradation was higher than RGO/TiO2 composites and pure TiO2 by 1.8 and 5.9 times, respectively. The role of co-doping composites may have a possible mechanism for toluene under UV light irradiation. The enhanced photocatalytic properties were attributed to N and Fe doping which generated intermediate energy level, extended absorption and decreased band gap of UV light.

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Synthesis of N and S Co-doped TiO2 Nanotubes for Advanced Photocatalytic Degradation of Volatile Organic Compounds (VOCs) in Gas Phase

Topics in Catalysis ◽

10.1007/s11244-020-01347-3 ◽

2020 ◽

Vol 63 (11-14) ◽

pp. 1077-1085

Author(s):

Le Thi Hoang Yen ◽

Doan Van Thuan ◽

Nguyen Thi Hanh ◽

Nguyen Hoang Thao Vy ◽

Tran Thi My Hang ◽

...

Keyword(s):

Volatile Organic Compounds ◽

Photocatalytic Degradation ◽

Gas Phase ◽

Organic Compounds ◽

Tio2 Nanotubes ◽

Doped Tio2 ◽

Volatile Organic ◽

Co Doped

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Performance of surface fluorinated P25-TiO2 on the photocatalytic degradation of volatile organic compounds in indoor environment

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/609/4/042057 ◽

2019 ◽

Vol 609 ◽

pp. 042057

Author(s):

Zahra Shayegan ◽

Fariborz Haghighat ◽

Chang-Seo Lee

Keyword(s):

Volatile Organic Compounds ◽

Photocatalytic Degradation ◽

Organic Compounds ◽

Indoor Environment ◽

Volatile Organic

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Enhanced Photocatalytic Properties of N and Fe Co-Doped TiO2 Nanocomposites with Reduced Graphene Oxide for Volatile Organic Compounds

Nanoscience and Nanotechnology Letters ◽

10.1166/nnl.2019.3006 ◽

2019 ◽

Vol 11 (9) ◽

pp. 1263-1270

Author(s):

Zhanguo Li ◽

Chao Shi ◽

Lijuan Wang ◽

Lijing Sun ◽

Qiang Sun

Keyword(s):

Graphene Oxide ◽

Volatile Organic Compounds ◽

Photocatalytic Degradation ◽

Reduced Graphene Oxide ◽

Organic Compounds ◽

Uv Light ◽

Light Irradiation ◽

Uv Light Irradiation ◽

Reduced Graphene ◽

Volatile Organic

Photocatalytic nanocomposites of titanium dioxide (TiO2) were prepared by hydrothermal method. Reduced graphene oxide (RGO) was applied to prepare various TiO2 composites of doped nanoparticles by using NH4Cl and FeCl3 as sources. The structure and morphology of these composites showed that TiO2 was loaded on surface of RGO. Meanwhile, the agglomeration of TiO2 decreased and the dispersion became uniform for doped materials. Under ultraviolet (UV) light irradiation, the photocatalytic degradation of volatile organic compounds (VOC) by RGO/TiO2 composites with codoping of N and Fe reached to 90.5%. The photocatalytic degradation was higher than RGO/TiO2 composites and pure TiO2 by 1.8 and 5.9 times, respectively. The role of co-doping composites may have a possible mechanism for toluene under UV light irradiation. The enhanced photocatalytic properties were attributed to N and Fe doping which generated intermediate energy level, extended absorption and decreased band gap of UV light.

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Copper-Nickel-Oxide Nanomaterial for Photoelectrochemical Hydrogen Evolution and Photocatalytic Degradation of Volatile Organic Compounds

Materials Research Bulletin ◽

10.1016/j.materresbull.2021.111418 ◽

2021 ◽

pp. 111418

Author(s):

Szymon Wojtyła ◽

Tomasz Baran

Keyword(s):

Volatile Organic Compounds ◽

Nickel Oxide ◽

Photocatalytic Degradation ◽

Hydrogen Evolution ◽

Organic Compounds ◽

Copper Nickel ◽

Volatile Organic

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Achieving a healthy indoor environment by using an emissions barrier for stopping spread of chemicals from building into the indoor air

10.14324/111.444/000099.v1 ◽

2021 ◽

Author(s):

Johan Mattsson ◽

Lennart Larsson

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Volatile Organic Compounds ◽

Organic Compounds ◽

Indoor Air ◽

Aromatic Hydrocarbons ◽

Indoor Environment ◽

Concrete Slab ◽

Treated Wood ◽

Volatile Organic ◽

Polycyclic Aromatic

An emissions barrier was used in premises with indoor air complaints due to emissions from the buildings in question. The emissions comprised chlorophenols/chloroanisoles and polycyclic aromatic hydrocarbons (PAH) from treated wood, and volatile organic compounds (VOC), mainly 2-ethylhexanol, from PVC flooring and the glue used to paste the flooring onto a concrete slab. Attaching the barrier at the surfaces from where the emissions were spread (floor, walls, ceiling) resulted in a fresh and odour-free indoor air. We conclude that using an emissions barrier in buildings made unhealthy by moisture is an efficient way of restoring a pleasant and healthy indoor air.

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