Two-dimensional ultra-thin ZnO/BiOBr0.9I0.1 hybrid photocatalyst and preparation method thereof

A catalyst, ultra-thin technology, applied in the field of photocatalysis, to achieve good outdoor solar photocatalytic performance, simple preparation, simple production process and environmental protection effect
CN106925306AActive Publication Date: 2017-07-07HUZHOU TEACHERS COLLEGE
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUZHOU TEACHERS COLLEGE
Publication Date
2017-07-07

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Abstract

The invention relates to the field of photocatalysis, in particular to a two-dimensional ZnO / BiOBr0.9I0.1 hybrid photocatalyst and a preparation method thereof. The photocatalyst is formed by carrying out two-phase hybridization and prepared from the following chemical components: ZnO / BiOBr0.9I0.1, wherein 0.9 and 0.1 respectively indicate stoichiometric mole fractions of halogens Br and I, and the mass percentage of ZnO is 10-50%. The preparation method of photocatalyst comprises the following characteristic steps: (1) preparing a two-dimensional ultra-thin Zn5(CO3)2(OH)6 sheet layer; and (2) preparing the two-dimensional ultra-thin ZnO / BiOBr0.9I0.1 hybrid photocatalyst. According to the two-dimensional ultra-thin ZnO / BiOBr0.9I0.1 hybrid photocatalyst provided by the invention, organic dyes can be degraded, and toxic organic phenol with a relatively stable structure also can be degraded. The preparation method is easy and environment-friendly, and has a potential application value in a solar photocatalytic decomposition treatment technology of organic pollutants.
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Description

technical field

[0001] The invention relates to the field of photocatalysis, specifically a two-dimensional ZnO / BiOBr 0.9 I 0.1 Hybrid solar catalyst and its preparation method. Background technique

[0002] At present, how to effectively purify pollutants in the environment, especially toxic and refractory organic pollutants (such as phenols, pesticides, dyes, etc.), is one of the important issues facing human survival and health. As a new green environmental treatment technology that uses solar energy to degrade organic environmental pollutants, semiconductor photocatalysis technology has been widely studied in energy conversion and environmental restoration applications. Traditional semiconductor photocatalysts such as TiO 2 And ZnO has good photoinducibility, high salinity, and has been initially applied to the degradation of various pollutants in water bodies. However, they have a wide band gap and can only absorb a very small part (about 4%) of ultraviolet light in...

Claims

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