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A kind of preparation method of molybdenum strontium oxide photocatalytic material
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A catalytic material, molybdenum oxide technology, applied in the field of photocatalytic materials, can solve the problems of low controllability, poor repeatability, strict ingredients requirements, etc.
Active Publication Date: 2021-04-16
ANHUI UNIVERSITY
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Problems solved by technology
However, this type of hydrothermal method has strict requirements on ingredients, poor repeatability and low controllability
Method used
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Embodiment 1
[0022] A preparation method of molybdenum strontium oxide photocatalytic material, the steps are as follows:
[0024] (1) Weigh 2.5774g of Sr(NO 3 ) 2 Dissolve in 50 mL of deionized water, and stir magnetically for 20 min to obtain solution A. At the same time, 0.4725 g of CTAB was weighed and dissolved in 100 mL of deionized water, and magnetically stirred for 20 min to obtain solution B.
[0025] (2) Pour solution B into solution A, and magnetically stir for 20 minutes to obtain solution C. Weigh 2.9616g of Na at the same time 2 MoO 4 2H 2 O was dissolved in 100 mL deionized water, and magnetically stirred for 20 min to obtain solution D.
[0026] (3) Pour solution D into solution C, stir magnetically for 20min, and dilute to 300mL with deionized water to obtain a white flocculent solution, then transfer the white flocculent solution to a hydrothermal reaction kettle, Reaction 4h.
[0027] (4) Take the ket...
Embodiment 2
[0031] A preparation method of molybdenum strontium oxide photocatalytic material, the steps are as follows:
[0032] 1. Preparation of SrMoO by hydrothermal reaction 4
[0033] Step is with embodiment 1
[0034] 2. Reduction reaction:
[0035] Weigh 0.5g of SrMoO 4 The sample was passed through a tube furnace with hydrogen, and reduced at 500°C for 3 hours to obtain a molybdenum strontium oxide photocatalytic material, denoted as A2.
Embodiment 3
[0037] A preparation method of molybdenum strontium oxide photocatalytic material, the steps are as follows:
[0038] 1. Preparation of SrMoO by hydrothermal reaction 4
[0039] Step is with embodiment 1
[0040] 2. Reduction reaction:
[0041] Weigh 0.5g of SrMoO 4 The sample was passed through a tube furnace with ammonia gas, and reduced at 700°C for 3 hours to obtain a molybdenum strontium oxide photocatalytic material, which was designated as B1.
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Abstract
A method for preparing molybdenumstrontiumoxide photocatalytic material relates to the technical field of photocatalytic materials. First use Sr(NO 3 ) 2 , CTAB and Na 2 MoO 4 2H 2 Preparation of SrMoO by O through hydrothermal reaction 4 , and then use reducing gas to reduce it to obtain SrMoO 4 and SrMoO 3 The mixture is molybdenumstrontiumoxide photocatalytic material. The molybdenumstrontiumoxide material prepared by the present invention has photocatalytic performance under visible light and full light conditions, and SrMoO 3 To a certain extent, it will promote the improvement of the photocatalytic performance of the material. The overall preparation process of the present invention is simple in technology, low in energy consumption, low in cost and safe in operation, and the raw material reagents used are cheap and non-toxic, friendly to the environment, and easy for large-scale engineering preparation and application.
Description
technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a method for preparing molybdenum strontium oxide photocatalytic materials. Background technique [0002] In the prior art, SrMoO 4 The method and principle of the synthesis are based on the hydrothermal method, the principle of the hydrothermal method: in a high temperature and high pressure environment, a material synthesis method that precipitates the target product according to the dissolution and crystallization mechanism. First, in a high-temperature and high-pressure environment, the reactants are dissolved in a hydrothermal solvent and enter the solution in the form of ions or molecules—the strong convection effect of high temperature and high pressure—the interaction between ions and molecules to form the target product—supersaturated solution—crystallization and precipitation of products. The advantages of the traditional hydrothermal method are: simpl...
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