Hollow N-TiO2/MnO2 nanocomposite based yeast biomass for gaseous formaldehyde degradation under visible light

In this research, olive-like Pd/BiVO4 was successfully prepared through a facile hydrothermal coreduction method for the photocatalytic degradation of formaldehyde under visible light irradiation. The structure, composition, and optical properties of the as-prepared Pd/BiVO4 were characterized through X-ray diffraction, transmission electron microscopy, ultraviolet-visible spectrophotometry, X-ray photoelectron spectroscopy, and photoluminescence. In addition, the photocatalytic activities of Pd/BiVO4 were evaluated through the photodegradation of formaldehyde. The experimental results demonstrated that the degradation efficiency of formaldehyde increased with increasing irradiation time. Moreover, 1.0 wt% Pd/BiVO4 exhibited the highest photocatalytic performance for formaldehyde degradation in 180 min, with the formaldehyde degradation rate as high as 87.5%.

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Insoluble matrix proteins from shell waste for synthesis of visible-light response photocatalyst to mineralize indoor gaseous formaldehyde

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2021.125649 ◽

2021 ◽

Vol 415 ◽

pp. 125649

Author(s):

Wenjun Wang ◽

Hongdi Yu ◽

Kai Li ◽

Fawei Lin ◽

Cheng Huang ◽

...

Keyword(s):

Visible Light ◽

Light Response ◽

Matrix Proteins ◽

Visible Light Response ◽

Shell Waste ◽

Gaseous Formaldehyde

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Thermally treated zeolitic imidazolate framework-8 (ZIF-8) for visible light photocatalytic degradation of gaseous formaldehyde

Chemical Science ◽

10.1039/d0sc01397h ◽

2020 ◽

Vol 11 (26) ◽

pp. 6670-6681 ◽

Cited By ~ 2

Author(s):

Tianqi Wang ◽

Yufei Wang ◽

Mingzhe Sun ◽

Aamir Hanif ◽

Hao Wu ◽

...

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Wide Spectrum ◽

Organic Ligands ◽

Zeolitic Imidazolate Framework ◽

Gaseous Formaldehyde ◽

Visible Light Photocatalytic ◽

Thermally Treated

The isocyanate groups (–NCO) derived from –NC– bonds in the organic ligands enables the thermally treated ZIF-8 to act as wide-spectrum photocatalyst.

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Photocatalytic Degradation of Gaseous Formaldehyde by Modified Hierarchical TiO2 Nanotubes at Room Temperature

Australian Journal of Chemistry ◽

10.1071/ch15484 ◽

2016 ◽

Vol 69 (3) ◽

pp. 343 ◽

Cited By ~ 4

Author(s):

Di Gu ◽

Baohui Wang ◽

Yanji Zhu ◽

Hongjun Wu

Keyword(s):

Indoor Air ◽

Room Temperature ◽

Air Pollutant ◽

Noble Metal Nanoparticles ◽

Reaction Rate Constants ◽

Volatile Organic ◽

Major Process ◽

Formaldehyde Degradation ◽

Tio2 Nts ◽

Gaseous Formaldehyde

As a major indoor air pollutant, formaldehyde released from building and furnishing materials is one of the main volatile organic compounds (VOCs). Hierarchical TiO2 nanotube arrays (TiO2 NTs) prepared via a facile two-step anodization showed excellent photocatalytic (PC) degradation of formaldehyde at room temperature. Modification with noble metal nanoparticles (NMNs) could further improve the PC activity of TiO2 NTs. The final products of formaldehyde degradation were detected to be CO2 and H2O, which indicated that the mineralization of formaldehyde was the major process in this PC reaction. The reaction rate constants (k) determined for the three catalysts were in the order kTiO2 NTs < kAu/TiO2 NTs < kPt/TiO2 NTs (Pt/TiO2 NTs had the highest PC ability). The significant enhancement of PC performance can be ascribed to the formation of a Schottky junction between the NMNs and TiO2 NTs.

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