P-nitrobenzoic acid uranyl coordination compound photocatalyst and preparation method thereof

Abstract

The invention discloses a p-nitrobenzoic acid uranyl coordination compound photocatalyst, which has a molecular formula of (H2-bipy)[(UO2)4([mu]3-O)2(p-nba)6], wherein bipy is 4,4'-bipyridine, and Hp-nba is p-nitrobenzoic acid. According to the present invention, under the irradiation of a xenon lamp light source, a tetracycline hydrochloride solution with a concentration of 40 mg / L can be degraded to 9.1% within 300 min with the catalyst, such that the catalyst is the uranyl coordination compound photocatalyst capable of catalytically degrading tetracycline hydrochloride under visible light.

Description

technical field [0001] The invention relates to a photocatalyst, in particular to a p-nitrobenzoic acid uranyl complex photocatalyst and a preparation method thereof. Background technique [0002] Since Alexander Fleming discovered penicillin in 1928, and William Bernard extracted aureomycin from actinomycete Streptomyces in 1948, so far, there have been thousands of types of antibiotics, which are widely used to treat human body Diseases, prevention of bacterial diseases of livestock, poultry, and aquatic products. However, the excessive use and abuse of antibiotics in life and medical treatment, the discharge of wastewater from pharmaceutical companies, animal feed and aquaculture, etc., make the current water environment contain a large number of antibiotic pollutants, causing increasingly serious environmental problems. Effective removal will pose a long-term potential threat to drinking water, the ecological environment and human health. At present, common technologie...

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Problems solved by technology

For example, the invention patent application with the publication number CN102698727A discloses a method for preparing loaded TiO with high thermal stability. 2 photocatalytic approach; however, TiO 2 Photocatalytic materials still have fatal shortcomings in practical applications: the photoresponse range is narrow, because only 4% of solar energy can be used for ultraviolet light, and the quantum efficiency is low

Uranyl ions have unique strong absorption and response in the visible light band, and have higher photocatalytic efficiency, which is expected to solve the problem of TiO 2 The shortcomings of photocatalysts such as narrow photoresponse range and low quantum efficiency have become photocatalysts with considerable application potential. For example, the invention patent with the publication number CN103447090A discloses a uranyl p-toluate complex photocatalyst. Excellent degradation performance for rhodamine B under xenon lamp

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