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Preparation method and application of functional nano-cerium complex

A complex and functional technology, applied in the direction of nanotechnology, instruments, analytical materials, etc., can solve the problems of in-situ and online detection, long analysis time, high instrument cost, etc., and achieve easy operation, simple detection operation, and preparation The effect of simple method

Inactive Publication Date: 2017-02-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, chiral chromatography has been widely used to separate and analyze chiral compounds, but this method has high instrument cost, long analysis time, cumbersome operation, high technical requirements, and it is difficult to realize in-situ and online detection, etc.

Method used

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  • Preparation method and application of functional nano-cerium complex
  • Preparation method and application of functional nano-cerium complex
  • Preparation method and application of functional nano-cerium complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Preparation of H 3 L ligand

[0035] To 13 mmol of 4-aminobenzoic acid, under stirring conditions, add 20 mL of an aqueous solution containing 15 mmol of sodium hydroxide and 5 mL of a dioxane solution containing 3 mmol of cyanuric chloride, and heat to reflux for 10 h. Adjust the pH to 2-3 with hydrochloric acid, filter under reduced pressure, and wash the filtered solid with water three times to obtain H 3 L, the productive rate is 85%.

Embodiment 2

[0036] Example 2 Preparation of H 3 L ligand

[0037] To 15 mmol of 4-aminobenzoic acid, under stirring conditions, add 20 mL of an aqueous solution containing 17 mmol of sodium hydroxide and 5 mL of a dioxane solution containing 3 mmol of cyanuric chloride, heat to reflux for 12 hours, and wash with hydrochloric acid Adjust the pH to 2-3, filter under reduced pressure, and wash the filtered solid with water three times to obtain H 3 L, the productive rate is 88%.

Embodiment 3

[0038] Example 3 Preparation of H 3 L ligand

[0039] To 14 mmol of 4-aminobenzoic acid, under stirring conditions, add 20 mL of an aqueous solution containing 16 mmol of sodium hydroxide and 5 mL of a dioxane solution containing 3 mmol of cyanuric chloride, and heat to reflux for 11 h. Adjust the pH to 2-3 with hydrochloric acid, filter under reduced pressure, and wash the filtered solid with water three times to obtain H 3 L, the productive rate is 86%.

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Abstract

The invention relates to a technical method for preparing a nano-cerium complex and utilizing the nano-cerium complex to detect antipodes by electrochemical chiral sensing, belonging to the technical field of nano materials and chiral electrochemistry. The technical method takes cerium nitrate, a ligand, a solvent and an alkaline water solution as raw materials and a sol-gel method is adopted to prepare a nano cerium complex with the grain diameter of 30nm-50nm; and a nano cerium complex chiral sensor working electrode and an electrochemical chiral sensor are prepared from the nano cerium complex and are used for detecting the content of D-(+)-tryptophan and L-(-)tryptophan antipodes. The technical method provided by the invention has the beneficial effects that a preparation method of the nano cerium complex is simple and convenient and is low in energy consumption; the chiral sensor is prepared based on the material and the method is simple and easy to operate; and the detection of the content of the D-(+)-tryptophan and L-(-)tryptophan antipodes has a rapid responding speed and good selectivity.

Description

technical field [0001] The invention discloses a preparation method and application of a nano-cerium complex, belonging to the technical field of nano-functional materials, metal-organic composite materials and chiral sensing and detection. Background technique [0002] Nano-metal-organic complexes are currently a research hotspot in the fields of materials science, chemical engineering, and sensing and identification. The materials are widely used in many fields such as catalysis, adsorption, separation, thin films, sensing, identification, proton conduction, and drug sustained release. Unmatched versatility by other traditional materials. [0003] Solvothermal method is the most commonly used method for the preparation of metal-organic complex crystals. The specific method is to seal metal salts, organic ligands and water or other solvents in a stainless steel reaction kettle lined with polytetrafluoroethylene. When heated to a certain temperature (80-300 ° C), the pressu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D251/70B82Y40/00G01N27/30G01N27/26
CPCB82Y40/00C07D251/70G01N27/26G01N27/308
Inventor 王志玲骆玉成匡轩杨小风刘志莲崔玉郑鲁沂
Owner UNIV OF JINAN
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