Preparation method and application of Fe4I3O24H15 visible-light-induced photocatalyst

A fe4i3o24h15, visible light technology, applied in the field of photocatalysis, can solve problems such as hindering the practical process of photocatalysis technology, low activity of organic pollutants, and reduced photocatalytic activity, and achieves excellent photocatalytic performance, high catalytic activity, and simple preparation process. Effect
CN104069877AActive Publication Date: 2014-10-01HUNAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV OF SCI & TECH
Publication Date
2014-10-01

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Abstract

The invention discloses a preparation method and the application of a Fe4I3O24H15 visible-light-induced photocatalyst. The preparation method comprises the steps of dissolving a certain amount of Fe (NO3)3. 9H2O into deionized water, and then feeding a certain amount of concentrated nitric acid into the deionized water to obtain acidic ferric nitrate solution; dissolving a certain amount of NaIO4 into the deionized water to obtain sodium metaperiodate solution; heating the obtained ferric nitrate solution and sodium metaperiodate solution up to 80 DEG C, and mixing the two solutions in a stirring state to obtain earthy yellow precipitate; separating out the precipitate, and drying for 5 hours at the temperature of 60 DEG C to obtain the Fe4I3O24H15 sample. The Fe4I3O24H15 visible-light-induced photocatalyst prepared by the method is capable of degrading rhodamine B dye under the visible light, and the activity of the Fe4I3O24H15 visible-light-induced photocatalyst is superior to those of commercial titanium dioxide P25 and high-activity AgI photocatalyst. The Fe4I3O24H15 compound is high in visible-light catalytic activity, simple and convenient in preparation process, low in cost, good in durability, non-toxic and beneficial to large-scale popularization and application.
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Description

technical field

[0001] The invention belongs to the photocatalytic technology in environmental treatment, and in particular relates to a novel visible light catalyst Fe 4 I 3 O 24 H 15 and its preparation method, and its application in photocatalytic degradation of organic dye pollutants. Background technique

[0002] Semiconductor photocatalysis technology can directly utilize sunlight to efficiently oxidatively degrade organic pollutants at room temperature. Therefore, taking full advantage of sunlight to degrade organic pollutants through photocatalysis is a favorable way to solve the current environmental pollution problem. Because ultraviolet light only accounts for about 4% of the total energy of sunlight, while visible light accounts for about 46%, the key to utilizing solar energy is to utilize the visible light in sunlight. Therefore, visible light-responsive photocatalysts (visible light catalysts for short) have important application prospects in the field of...

Claims

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