A kind of bismuth oxyiodide/boron carbide catalyst and its preparation method and application

A technology of bismuth oxyiodide and boron carbide, which is applied in the field of bismuth oxyiodide/boron carbide catalyst and its preparation, can solve the problems of low degradation efficiency of endocrine disruptors, limited wide application and the like, and achieves increased quantity, reduced cost and mild reaction conditions. Effect
CN111437854BActive Publication Date: 2021-08-06CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2021-08-06

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Abstract

The invention provides a bismuth oxyiodide / boron carbide catalyst and a preparation method and application thereof, belonging to the field of catalytic materials. The catalyst provided by the present invention includes a composite structure of bismuth oxyiodide and boron carbide, and the ratio of the amount of substances of bismuth oxyiodide and boron carbide is controlled to be 1: (0.855~85.5), so that the two are combined to form more semiconductor heterogeneous compounds. Mass junction, electronic transition occurs when responding to visible light, through the connection of the heterojunction, the photogenerated electrons are transferred to the BiOI side, and the hole pairs are transferred to the B 4 On the C side, photogenerated electrons and hole pairs are separated, reducing the recombination rate of the two, thereby increasing the number of active groups in the catalytic reaction system to improve catalytic activity and the degradation rate of endocrine disruptors. After the catalyst provided by the invention is combined with the sulfate oxidation technology, the degradation rate of endocrine disruptor BPS in water can reach 95%, and the degradation rate of BPA can reach 98%.
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Description

technical field

[0001] The invention relates to the field of catalytic materials, in particular to a bismuth oxyiodide / boron carbide catalyst and its preparation method and application. Background technique

[0002] With the acceleration of urbanization and the advancement of industrialization, a large number of synthetic organic substances are used in the manufacturing industry, which leads to the residual synthetic organic substances entering and being exposed to the environment through various channels, which induces serious water pollution problems, and then Seriously endanger human health. Among them, endocrine disrupting chemicals (EndocrinedisruptingChemicals, ECDs) are released into the environment due to human life and production, enter the human body or animal body, disrupt or even destroy the human body or animal by imitating or inhibiting the metabolic activities of the human body or biological endocrine system. Animals have homeostasis, which causes abnormal ef...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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