Preparation method of Fe-doped oxyhalogen bismuth nanometer material

Abstract

The invention discloses a preparation method of a Fe-doped oxyhalogen bismuth nanometer material. The method comprises the following steps of respectively preparing an ethylene glycol solution of pentahydrate bismuth nitrate and a water solution of halite and iron nitrate nonahydrate; at the room temperature, dripping the obtained water solution into the ethylene glycol solution; using the ultrasonic effect as an auxiliary measure to take reaction; finally, washing, drying and cooling obtained precipitates to obtain the Fe-doped oxyhalogen bismuth nanometer material. The preparation method has the advantages that the one-step synthesis process of the Fe-doped oxyhalogen bismuth nanometer material can be realized under the room-temperature condition; high-temperature and high-pressure conditions are not needed; the reaction conditions are mild; the reaction time is short; the energy is saved; the consumption is reduced; the related synthesis process is simple; the raw material cost and the production cost are low; the repeatability is good; the preparation method is suitable for industrial popularization and application.

Description

Technical field [0001] The invention belongs to the technical field of functional material preparation, and specifically relates to a preparation method of Fe-doped bismuth oxyhalide nano material. Background technique [0002] Environmental pollution is getting worse and seriously endangering human health. Since 1972, Fujishima and Honda discovered TiO 2 Since the photolysis of water with single crystal electrodes, photocatalytic technology has provided a new way of thinking for the treatment of environmental pollution. Traditional TiO 2 The photocatalyst has received wide attention due to its anti-chemical and photo-corrosion, stable properties, non-toxicity, high catalytic activity, and low price. However, its band gap is wide, and it can only absorb ultraviolet light and cannot effectively use sunlight, which limits TiO 2 Development in practical applications. Therefore, the development of more effective photocatalysts to degrade pollutants has become a hot spot for scientist...

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Problems solved by technology

[0004] However, there are not many reports on Fe-doped BiOX (X=Cl, Br) nanomaterials. Xia et al. (Crystengcomm2013, 15, 10132-10141) reported the use of ionic liquids and the reaction at 140 ° C by solvothermal method 24h, Fe-doped BiOCl was synthesized; Liu et al. (Catalysis Letters 2012, 142, 1489-1497) reported that Bi(NO 3 ) 3 ·5H 2 O, Fe(NO 3 ) 3 9H 2 O and CTAB were dissolved in EG solution and reacted at 160°C for 8 hours by solvothermal method to synthesize Fe-doped BiOBr; Jiang et al. 3 ) 3 ·5H 2 O, FeCl 3 and CTAB were dissolved in 2-methoxyethanol, and reacted at 160°C for 24 hours to obtain Fe-doped BiOBr; the existing preparation method requires high temperature and high pressure conditions, and the reaction time is long, which is not conducive to popularization and application

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