Preparation method of terbium organic composite nanoprobe for detecting fluorine ions in aqueous solution

A nanoprobe, fluoride ion technology, applied in 3/13 groups of organic compounds without C-metal bonds, organic chemistry, chemical instruments and methods, etc., can solve the problem of low fluorescence quantum efficiency, weak luminescence signal, and weak extinction ability. and other problems, to achieve the effect of high sensitivity, low cost and high reliability

Pending Publication Date: 2021-07-30
CHINA JILIANG UNIV
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However, terbium ions have weak extinction ability and low fluorescence qu

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  • Preparation method of terbium organic composite nanoprobe for detecting fluorine ions in aqueous solution
  • Preparation method of terbium organic composite nanoprobe for detecting fluorine ions in aqueous solution
  • Preparation method of terbium organic composite nanoprobe for detecting fluorine ions in aqueous solution

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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the schematic embodiments and descriptions are only used to explain the present invention, but not as improper limitations to the present invention.

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] A preparation of a terbium organic composite nanoprobe for the detection of fluoride ions in aqueous solution, specifically comprising the following steps: using the coronal terbium gallium dication complex as the detection signal source, combining the coronal terbium gallium dication complex with the block copolymer F127 Terbium-organic composite nanoprobes were prepared by hybrid self-assembly, an...

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Abstract

The invention discloses a preparation method of a terbium organic composite nanoprobe for detecting fluorine ions in an aqueous solution. The preparation method comprises the steps of taking a coronal terbium-gallium dication complex as a detection signal source; and mixing and self-assembling the coronal terbium-gallium dication complex and a block copolymer F127 to prepare the terbium organic composite nanoprobe. The preparation method specifically comprises the steps of S1, mixing and coordinating terbium ions, gallium ions, salicylhydroxamic acid and sodium benzoate in methanol to prepare the coronal terbium-gallium dication complex; and S2, mixing the methanol solution of the coronal terbium-gallium dication complex prepared in the step S1 with a block copolymer F127, and stirring at room temperature to obtain a clear and transparent mixed solution; and S3, injecting deionized water into the mixed solution obtained in the step S2, and carrying out a rapid nano self-assembly reaction to obtain a terbium organic composite nano luminescent probe. The terbium organic composite nano luminescent material obtained by the invention is uniform in size, high in luminescent intensity and free of aggregation and precipitation phenomena, can realize rapid detection of fluorine ions in an aqueous solution, and has a response range of 0.19 ppm to 18.81 ppm.

Description

technical field [0001] The invention belongs to the technical field of detecting fluorine ions in aqueous solution, and in particular relates to a method for preparing a terbium organic composite nanoprobe for detecting fluorine ions in aqueous solution. Background technique [0002] A normal adult body contains about 2.6g of fluorine, and the human body takes in a small amount of fluorine through diet and drinking water every day. However, once the daily intake exceeds 4 mg, it may cause human poisoning, and excessive fluoride ion is an important factor causing neurotoxicity. Therefore, the development of technologies capable of rapidly detecting fluoride ions in aqueous solutions has become an urgent need. [0003] Rare earth terbium ions have excellent optical characteristics such as narrow luminescence half-width peak, long lifetime, and strong bleaching resistance, and have potential application values ​​in the fields of biological detection imaging, solar energy conve...

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IPC IPC(8): C09K11/02C09K11/06C07F5/00G01N21/64
CPCC07F5/003C09K11/025C09K11/06C09K2211/1007C09K2211/182C09K2211/188G01N21/643
Inventor 谢杭清包晨昊徐时清
Owner CHINA JILIANG UNIV
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