Insights into the Adsorption and Photocatalytic Oxidation Behaviors of Boron-Doped TiO2/g-C3N4 Nanocomposites toward As(III) in Aqueous Solution

Boron doped TiO2 (B-TiO2) was prepared, characterized, and successfully applied as a reusable, inexpensive, available, and heterogeneous nano photocatalyst under visible light for a novel method of construction of phenacyl...

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Photocatalytic oxidation of gas-phase Hg0 by Fe-doped TiO2 hollow microspheres

Materials Letters ◽

10.1016/j.matlet.2021.129538 ◽

2021 ◽

Vol 291 ◽

pp. 129538

Author(s):

Zhaopeng Zhang ◽

Xian Li ◽

Dayong Guan ◽

Yingchao Gao ◽

Jiang Wu ◽

...

Keyword(s):

Gas Phase ◽

Photocatalytic Oxidation ◽

Hollow Microspheres ◽

Doped Tio2

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Anodic Oxidation Behaviors of Formaldehyde at Boron-Doped Diamond Electrodes

Journal of the Chinese Chemical Society ◽

10.1002/jccs.200600110 ◽

2006 ◽

Vol 53 (4) ◽

pp. 839-844 ◽

Cited By ~ 6

Author(s):

Chia-Chin Changa ◽

Li-Chia Chena ◽

Shyh-Jiun Liu ◽

Hsien-Ju Tien ◽

Hsien-Chang Chang

Keyword(s):

Anodic Oxidation ◽

Diamond Electrodes ◽

Boron Doped Diamond ◽

Boron Doped ◽

Oxidation Behaviors

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Modified-TiO2 Photocatalyst Supported on β-SiC Foams for the Elimination of Gaseous Diethyl Sulfide as an Analog for Chemical Warfare Agent: Towards the Development of a Photoreactor Prototype

Catalysts ◽

10.3390/catal11030403 ◽

2021 ◽

Vol 11 (3) ◽

pp. 403

Author(s):

Armelle Sengele ◽

Didier Robert ◽

Nicolas Keller ◽

Valérie Keller

Keyword(s):

Photocatalytic Oxidation ◽

Chemical Warfare Agents ◽

Chemical Warfare Agent ◽

Chemical Warfare ◽

Diethyl Sulfide ◽

Tio2 Photocatalysts ◽

Doped Tio2 ◽

Model Molecule ◽

Warfare Agents ◽

Oxidation Efficiency

In the context of the increase in chemical threat due to warfare agents, the development of efficient methods for destruction of Chemical Warfare Agents (CWAs) are of first importance both for civilian and military purposes. Amongst possible methods for destruction of CWAs, photocatalytic oxidation is an alternative one. The present paper reports on the preparation of Ta and Sn doped TiO2 photocatalysts immobilized on β-SiC foams for the elimination of diethyl sulfide (DES) used as a model molecule mimicking Yperite (Mustard Gas) in gaseous phase. Photo-oxidation efficiency of doped TiO2 catalyst has been compared with TiO2-P25. Here, we demonstrate that the Sn doped-TiO2 with a Polyethylene glycol (PEG)/TiO2 ratio of 7 exhibits the best initial activity (up to 90%) but is deactivates more quickly than Ta doped-TiO2 (40% after 800 min). The activity of the catalysts is strongly influenced by the adsorption properties of the support, as β-SiC foams adsorb DES and other sulfur compounds. This adsorption makes it possible to limit the poisoning of the catalysts and to maintain an acceptable conversion rate even after ten hours under continuous DES flow. Washing with NaOH completely regenerates the catalyst after a firs treatment and even seems to “wash” it by removing impurities initially present on the foams.

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