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Modified Nanometer Titanium Dioxide Photocatalytic Properties

Author: CuiHongZuo
Tutor: LiZhiLin
School: Hebei University
Course: Inorganic Chemistry
Keywords: Titanium dioxide Doping Photocatalytic Load
CLC: O614.411
Type: Master's thesis
Year: 2009
Downloads: 174
Quote: 1
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Abstract


Fujishima and Honda in 1972 in the journal Nature published scientific research, light marks the beginning of a new era of catalytic TiO2 electrode photolysis of water . After scholars from the fields of chemistry, physics , materials around the solar energy conversion and storage , to explore the principle of heterogeneous photocatalytic process , committed to improving the photocatalytic efficiency , and expand its application areas . So far, the photocatalytic has penetrated into various fields of materials, energy , environmental protection , medicine, public health , and analytical , and become a hot topic in today 's scientific research . Contain sharp mixed grain nano-titanium dioxide anatase phase and rutile , high photocatalytic activity , and can be applied to the catalytic degradation of organic compounds in water . The paper was prepared nano titanium dioxide powder and thin film materials , on the basis of study of its photocatalytic mechanism to expand its sewage treatment . The paper is divided into four chapters : the first chapter , an overview of the structure and properties of nano titanium dioxide materials photocatalytic mechanism and nano titanium dioxide materials research status of synthesis methods , applications , and clarify the purpose and significance of this topic . The second chapter , by sol - gel method Preparation of Nano TiO2 / tourmaline composite photocatalyst , and were characterized by means of XRD, SEM and other products . For the processing activity scarlet BES simulated dyeing wastewater investigated the ability of composite photocatalytic degradation . Chapter III , glazed tiles carrier Nano TiO2 Films and metal Ag - doped nano- TiO2 film , and for handling the activity scarlet BES simulated dyeing wastewater , the results showed that the photocatalytic properties of doped metal nano- TiO2 film is better than single nano- TiO2 film . Chapter IV , Conclusion .

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CLC: > Mathematical sciences and chemical > Chemistry > Inorganic Chemistry > Metal elements and their compounds > Section Ⅳ group metal elements and their compounds > The titanium Vice family ( IV B group metal elements) > Ti Ti
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