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A kind of reusable metal thin film and its preparation

A metal film and reaction technology, applied in the field of simulated enzymes, can solve the problems of uncontrollable delivery position, difficult recovery of powder materials, and reduced secondary activity, and achieve the effects of low cost, easy recovery and adhesion.

Active Publication Date: 2022-04-15
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] It has been reported that many nano-powder materials have simulated enzyme activity, but due to the disadvantages of powder materials such as difficulty in recycling, reduced secondary activity, and uncontrollable delivery positions, etc.

Method used

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  • A kind of reusable metal thin film and its preparation
  • A kind of reusable metal thin film and its preparation
  • A kind of reusable metal thin film and its preparation

Examples

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Embodiment 1

[0022] Add 6mmol cobalt chloride hexahydrate, 6mmol urea and 60mL ultrapure water to the beaker, stir magnetically for 30min, transfer to a 100mL hydrothermal reactor, and crystallize at 100°C for 12h. After crystallization, cool down to room temperature naturally, take out the precursor, first wash with ultrapure water for 3 times, then wash with absolute ethanol for 2-4 times; The precursor was obtained by drying at ℃, ready to use.

[0023] Add 0.4g precursor, 0.9g sodium sulfide, 60mL ultrapure water and different metal substrates (see Table 1) into the beaker, stir magnetically for 30min, disperse evenly, transfer to 100mL hydrothermal reaction kettle at 180℃ Vulcanize for 12h. After the reaction finished, the reaction kettle was naturally cooled to room temperature, cleaned and dried according to the above steps, and obtained metal films formed on different metal substrates (see figure 1 ).

[0024] Depend on figure 1 It can be seen that all metal substrate surfaces ...

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Abstract

The invention relates to the technology of imitating enzymes, in particular to a reusable metal thin film material and its preparation. Mix cobalt salt and urea powder into ultrapure water, mix evenly, transfer to a reaction kettle, and crystallize at 100-120°C for 12-14h to obtain a precursor; among them, Co in cobalt salt 2+ The molar ratio with urea is 3:1-1:3; Gained precursor and Na 2 S·9H 2 O is mixed according to the mass ratio of 3:8-21:4, dissolved in ultrapure water to obtain a dispersion, and then the substrate is placed in the above dispersion, and reacted at 180-200°C for 12-14h to form a metal film on the surface of the substrate Material. The invention obtains the metal thin film material with excellent peroxidase activity through a two-step hydrothermal method. The nanometer material prepared by the invention has the advantages of simple synthesis method, low cost, remarkable performance and the like, and has broad application prospects in the field of catalytic oxidation of nanometer materials.

Description

technical field [0001] The invention relates to the technology of imitating enzymes, in particular to a reusable metal thin film material and its preparation. Background technique [0002] Natural enzymes in living organisms have excellent catalytic effects and are widely used in many fields such as biosensing, healthcare, environmental protection, and food industry. However, due to the harsh conditions of use of natural enzymes, their environmental tolerance is low, their stability is poor, and they are easily inactivated, and their preparation and purification costs are high. Therefore, the development and utilization of natural enzymes has been greatly restricted. Therefore, it is of great research significance to develop inorganic mimetic enzyme materials that are cheap, easy to obtain, easy to prepare, strong in stability and high in activity. [0003] It has been reported that many nanopowder materials have simulated enzyme activity, but the powder materials have dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/049B01J27/051B01J37/10C23C26/00
CPCB01J27/049B01J27/0515B01J37/10C23C26/00B01J35/59
Inventor 张盾王瑾王毅
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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