Bismuth oxyiodide-based composite photocatalyst and preparation method thereof
A bismuth oxyiodide and catalyst technology, which is applied in the field of bismuth oxyiodide-based composite photocatalysts and its preparation, can solve the problems of low photocatalytic performance of pure BiOI, achieve improved photocatalytic activity and stability, reduce costs, and simplify the process Effect
Inactive Publication Date: 2020-09-15
HUAIBEI NORMAL UNIVERSITY
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Problems solved by technology
However, the photocatalytic performance of pure BiOI is still low because the photogenerated electron-hole pairs of pure BiOI are easy to recombine
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referre...
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The invention discloses a bismuth oxyiodide-based composite photocatalyst and a preparation method thereof, and relates to a composite photocatalyst, in particular to a bismuth oxyiodide and cobalt titanate composite photocatalyst. The bismuth oxyiodide and titanic acid composite photocatalyst is of a solid structure; the bismuth oxyiodide and cobalt titanate composite photocatalyst can degrade rhodamine B dye under the irradiation of a catalytic light source; the two-dimensional bismuth oxyiodide nanosheet is loaded on the surface of the one-dimensional porous cobalt titanate nanorod, so thatthe prepared composite photocatalyst has a dendritic hierarchical structure, and photon capture and photon-generated carrier separation are facilitated; the preparation method of the composite photocatalyst is simple, the process parameters are easy to realize, the composite photocatalyst with high yield and ultra-purity can be obtained while the cost is reduced, and the preparation method is suitable for large-scale production; and the method has wide application prospect and industrial prospect in the fields of hydrogen production by photolysis of water, photodegradation of organic pollutants and heavy metal ions, reduction of carbon dioxide and the like.
Description
technical field [0001] The invention relates to the technical field of bismuth oxyiodide-based composite photocatalysts, in particular to a bismuth oxyiodide-based composite photocatalyst and a preparation method thereof. Background technique [0002] At present, due to the rapid development of textiles or cosmetics, there are a large number of organic pollutants in water bodies such as rhodamine B and methyl orange; Pink artificial dye, soluble in water and ethanol, slightly soluble in acetone, chloroform, hydrochloric acid and sodium hydroxide solution; rhodamine B aqueous solution is blue-red, and has strong fluorescence after dilution; rhodamine B alcohol solution is red Fluorescence: It was found through mouse experiments that rhodamine B can cause subcutaneous tissue sarcoma, and it has been included in the list of three types of carcinogens in 2017. In the prior art, rhodamine B is used to photometrically determine gold, gallium, mercury, and antimony , thallium, flu...
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IPC IPC(8): B01J27/06B01J23/75B01J37/03C02F1/30C02F101/30
CPCB01J27/06B01J23/75B01J23/002B01J37/031C02F1/30C02F2101/308C02F2305/10B01J35/23B01J35/39
Inventor 李强卢笑笑王李结蒋雪雪
Owner HUAIBEI NORMAL UNIVERSITY