Theoretical study on photocatalytic oxidation of VOCs using nano-TiO2 photocatalyst

2007 ◽  
Vol 188 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Huili Yu ◽  
Kaili Zhang ◽  
Carole Rossi
Keyword(s):  
Photocatalytic Oxidation ◽  
Theoretical Study ◽  
Tio2 Photocatalyst ◽  
Nano Tio2

scholarly journals Antiviral Effect of Visible Light-Sensitive CuxO/TiO2 Photocatalyst

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1093
Author(s):  
Masahiro Miyauchi ◽  
Kayano Sunada ◽  
Kazuhito Hashimoto
Keyword(s):  
Visible Light ◽  
Photocatalytic Oxidation ◽  
Antiviral Effect ◽  
Light Illumination ◽  
Tio2 Photocatalyst ◽  
Valence States ◽  
Antiviral Function ◽  
Dark Conditions ◽  
Indoor Conditions ◽  
Interfacial Charge

Photocatalysis is an effective technology for preventing the spread of pandemic-scale viruses. This review paper presents an overview of the recent progress in the development of an efficient visible light-sensitive photocatalyst, i.e., a copper oxide nanoclusters grafted titanium dioxide (CuxO/TiO2). The antiviral CuxO/TiO2 photocatalyst is functionalised by a different mechanism in addition to the photocatalytic oxidation process. The CuxO nanocluster consists of the valence states of Cu(I) and Cu(II); herein, the Cu(I) species denaturalizes the protein of the virus, thereby resulting in significant antiviral properties even under dark conditions. Moreover, the Cu(II) species in the CuxO nanocluster serves as an electron acceptor through photo-induced interfacial charge transfer, which leads to the formation of an anti-virus Cu(I) species and holes with strong oxidation power in the valence band of TiO2 under visible-light irradiation. The antiviral function of the CuxO/TiO2 photocatalyst is maintained under indoor conditions, where light illumination is enabled during the day but not during the night; this is because the remaining active Cu(I) species works under dark conditions. The CuxO/TiO2 photocatalyst can thus be used to reduce the risk of virus infection by acting as an antiviral coating material.

Deposition Strategies of Nano-TiO2 Photocatalyst for Wastewater Applications

2020 ◽  
pp. 225-226
Author(s):  
Massimo Dell’Edera ◽  
Francesca Petronella ◽  
Teresa Sibillano ◽  
Cinzia Giannini ◽  
Angela Agostiano ◽  
...  
Keyword(s):  
Tio2 Photocatalyst ◽  
Nano Tio2

scholarly journals Application of and research on TiO2 photocatalysis technology

2020 ◽  
Vol 165 ◽  
pp. 05001
Author(s):  
Wu Mengjie ◽  
Liu Kun
Keyword(s):  
Photocatalytic Oxidation ◽  
Marine Pollution ◽  
Catalyst Activity ◽  
Influence Factors ◽  
Development Trend ◽  
Environmental Pollutant ◽  
Research Progress ◽  
Nano Tio2 ◽  
Tio2 Photocatalysis ◽  
Waste Degradation

Nano-TiO2 photocatalysis technology is a new environmental pollutant purification technology, but its application is very extensive. This paper introduces the photocatalytic properties of nano-TiO2, and summarizes the research progress of nano-TiO2 in industrial wastewater, marine pollution, solid waste degradation, air purification and sterilization. At the same time, it is pointed out that the nano-TiO2 photocatalytic technology has not fully reached the practical application level, and the development trend of nano-TiO2 photocatalytic materials is prospected. Photocatalytic oxidation (PCO) using nanomaterials is a promising technology for removing pollutants, especially in deodorization, degradation of volatile organic compounds (VOCs) and sterilization. The mechanism of nanometer photocatalysis was reviewed in this paper. The influence factors including initial concentration of pollutants, reaction time, light intensity, humidity, surface area and catalyst activity were discussed. Furthermore, the application in photocatalytic removal of gas phase contaminants was summarized, and the future development of its application was proposed based on the existing problems.

Preparation of carbon foam-loaded nano-TiO2 photocatalyst and its degradation on methyl orange

2017 ◽  
Vol 7 ◽  
pp. 116-124 ◽  
Author(s):  
Chuang Wang ◽  
Zhen-hai Shi ◽  
Lei Peng ◽  
Wen-min He ◽  
Bing-liang Li ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Carbon Foam ◽  
Tio2 Photocatalyst ◽  
Nano Tio2

scholarly journals Photocatalytic Oxidation of Glucose into Formate on Nano TiO2 Catalyst

2017 ◽  
Vol 5 (8) ◽  
pp. 6377-6381 ◽  
Author(s):  
Binbin Jin ◽  
Guodong Yao ◽  
Xiaoguang Wang ◽  
Kefan Ding ◽  
Fangming Jin
Keyword(s):  
Photocatalytic Oxidation ◽  
Nano Tio2 ◽  
Tio2 Catalyst ◽  
Oxidation Of Glucose

Preparation of Silver-Doped TiO2 Photoatalyst via a Simple Sol-Hydrothermal and their Visible Light Photocatalytic Activity

2011 ◽  
Vol 694 ◽  
pp. 824-830 ◽  
Author(s):  
Li Guo ◽  
Feng Fu ◽  
Dan Jun Wang ◽  
Xiao Dan Qiang ◽  
Qing Bo Wei ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Anatase Phase ◽  
Visible Region ◽  
Tio2 Photocatalyst ◽  
Hydrothermal Route ◽  
Nano Tio2 ◽  
Absorption Intensity ◽  
Ag Doping ◽  
Vis Spectroscopy ◽  
Visible Light Photocatalytic

Silver-doped nano-TiO2 photocatalyst were synthesized via a simple hydrothermal route. The samples were characterized by XRD, XPS, FE-SEM and UV-Vis absorption spectrum techniques. Rhodamine B was selected as the model-pollutant to evaluate the photocatalytic activity of the samples. The XRD results indicated that the Ag-doped TiO2 were pure anatase phase. The UV-Vis spectroscopy revealed that the Ag doping can increase the absorption intensity of TiO2 in the visible region, which results in the improving the photocatalytic activity of TiO2 photocatalyst. Photocatalytic experimental results revealed that Ag-doping TiO2 catalyst shows the enhancement photocatalytic activity.

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