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Preparation method of fluorescent nanomaterial zn-pdc:tb3+ for selective detection of antibiotics

A fluorescent nanomaterial and selective technology, which is applied in the direction of luminescent materials, material analysis and analysis materials through optical means, can solve the problems of high price and difficulty in the synthesis of conjugated ligands, and achieve mild synthesis conditions and fast and reliable methods , the effect of simple synthesis method

Active Publication Date: 2019-05-14
ANHUI NORMAL UNIV
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Problems solved by technology

There are very few such reports, and antibiotics are detected through the fluorescence properties of conjugated ligands and transition metals. Such conjugated ligands are usually difficult to synthesize and expensive.

Method used

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  • Preparation method of fluorescent nanomaterial zn-pdc:tb3+ for selective detection of antibiotics
  • Preparation method of fluorescent nanomaterial zn-pdc:tb3+ for selective detection of antibiotics
  • Preparation method of fluorescent nanomaterial zn-pdc:tb3+ for selective detection of antibiotics

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Embodiment 1

[0030] At room temperature, 4 mL of 0.1M 2,5-Na 2 Add the aqueous solution of PDC to 20mL of deionized water / absolute ethanol mixed solution whose volume ratio is 1:1, stir and mix evenly, then add 4mL containing 0.02mmol Tb(NO 3 ) 3 (the ratio of the number of atoms that Tb occupies in the total content of the metal compound, that is, the molar ratio is 5%) and 0.38mmol Zn (NO 3 ) 2 The aqueous solution was continuously stirred for 30 minutes to obtain a white precipitate; the obtained white precipitate was centrifuged and washed 3 times with deionized water and absolute ethanol respectively, and the obtained product was put into a vacuum drying oven and vacuum-dried to constant weight at 60°C, that is, Zn-PDC:Tb with Rare Earth Luminescent Properties 3+ Fluorescent nanomaterials, spare.

[0031] With Zn-PDC gained in embodiment 1:Tb 3+ Fluorescent nanomaterials were detected by scanning electron microscope, X-ray powder diffraction and fluorescence detection. The result...

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Abstract

The invention discloses a fluorescent nanomaterial Zn-PDC:Tb<3+> for selective detection of antibiotics. The synthesis route is as follows: a spindle-shaped rare earth-modified Zn-PDC:Tb<3+> fluorescent nanomaterial is synthesized by using a direct precipitation method at room temperature under a mixed liquid system of water and ethanol in one step; the obtained Zn-PDC:Tb<3+> fluorescent nanomaterial has rare earth luminescence property, and can be used for qualitatively and quantitatively detecting cephaloxime antibiotic in water, and a sample does not need to be pretreated. The method is simple in operation, short in detection period, low in cost, high in selectivity and good in repeatability, and an efficient and convenient method is provided for detection of cephaloxime antibiotic.

Description

technical field [0001] The invention belongs to the field of synthesis of inorganic micro-nano materials, in particular to a fluorescent nano-material Zn-PDC:Tb for selective detection of antibiotics 3+ Preparation method and application. Background technique [0002] With the increasing concern for public health and water environment, the detection of pollutants in wastewater is becoming more and more important. Antibiotics, commonly used to treat bacterial infections in humans and animals, are an emerging water pollutant. In recent years, the abuse of antibiotics has led to antibiotic residues, which has led to a series of serious ecological environment pollution. Ying et al. found that the amount of antibiotics used in China alone in 2013 reached 92,700 tons, while the residual amount in sewage after water treatment was still 53,800 tons; and this is still increasing year by year (Environ.Sci.Technol.,2015,49 , 6772-6782). Therefore, the detection of antibiotics is of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06G01N21/64
CPCC09K11/06C09K2211/1466C09K2211/188G01N21/6428
Inventor 倪永红潘红道逍遥钱广萍
Owner ANHUI NORMAL UNIV