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Aqueous-phase preparation method for chiral metal compound nanomaterial mercury sulfide

A technology of metal compounds and nanomaterials, which is applied in the field of aqueous phase preparation of chiral metal compound nanomaterials mercury sulfide, which can solve the problems of mercury sulfide not suitable for the environment, low product purity, single particle size, etc., and achieve uniform appearance , simple operation steps and simple reaction conditions

Inactive Publication Date: 2019-03-08
HENAN NORMAL UNIV
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Problems solved by technology

The existing nano-scale mercury sulfide often requires heating and reflux operations, and the product has a single particle size and low purity, so it is not suitable for environmental mercury sulfide research

Method used

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  • Aqueous-phase preparation method for chiral metal compound nanomaterial mercury sulfide
  • Aqueous-phase preparation method for chiral metal compound nanomaterial mercury sulfide
  • Aqueous-phase preparation method for chiral metal compound nanomaterial mercury sulfide

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Embodiment 1

[0018] Add 62.3mg of mercuric nitrate containing 0.5% water of crystallization into 10mL of deionized water, then add 2mL of an alkaline solution of L-cystine with a molar concentration of 0.09mol / L, the alkaline solution of this L-cystine is Prepared by dissolving 8mL of L-cystine in 1.3mL of aqueous sodium hydroxide solution with a molar concentration of 2mol / L, then adding 1mL of an aqueous solution of thioacetamide with a molar concentration of 0.18mol / L, and stirring the reaction in a water bath at 38°C After 15 hours, centrifuge at a speed of 4500 rpm, take out the supernatant, disperse the centrifuge in 10 mL of deionized water, and finally prepare the chiral metal compound nanomaterial mercury sulfide.

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Abstract

The invention discloses an aqueous-phase preparation method for chiral metal compound nanomaterial mercury sulfide. The aqueous-phase preparation method includes the steps of taking a mercury salt aqueous solution and a sulfide aqueous solution as reaction raw materials, taking sulfur-containing amino acid as a chiral inducer, and reacting the three in a water bath with the temperature of 20-50 DEG C while stirring to obtain the chiral metal compound nanomaterial mercury sulfide having optical isomerism and uniform size; the chiral metal compound nanomaterial mercury sulfide can be re-dispersed in deionized water. The aqueous-phase preparation method has simple reaction conditions, is easy to operate and can be applied to mass production; the final product has high dispersibility in distilled water.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional nanomaterials, and in particular relates to an aqueous phase preparation method of mercury sulfide, a chiral metal compound nanomaterial. Background technique [0002] The precipitation and dissolution of mercury sulfide (HgS) as a basic environmental chemical process plays a key role in the speciation distribution, migration, reactivity and corresponding migration and transformation (including methylation / demethylation) of mercury in environmental media , is also a key process to control mercury toxicity. Therefore, studying the environmental behavior of mercury sulfide is an important way to solve mercury pollution. Since the particle size of mercury sulfide in the environment is mostly on the submicron scale, it is necessary to use submicron mercury sulfide to simulate the reaction and form changes of mercury sulfide in the real environment, but currently only granular mercur...

Claims

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Application Information

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IPC IPC(8): C01G13/00B82Y30/00
CPCB82Y30/00C01G13/00
Inventor 杨嬅嬿王俊玉王萌杨守宁杨林
Owner HENAN NORMAL UNIV
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