Nickel ferrite nanoparticles and green synthesis method and application thereof

A technology of nano-particles and nickel ferrite, which is applied in the fields of nano-magnetism, nickel compounds, nano-technology, etc., can solve the problems that have not been reported in the research, and achieve the effects of uniform particle size, simple synthesis method, and low cost

Active Publication Date: 2022-05-24
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been some reports on the addition of single Fe, Ni and their oxide nanoparticles to the dark fermentation hydrogen production system. However, there is no

Method used

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  • Nickel ferrite nanoparticles and green synthesis method and application thereof
  • Nickel ferrite nanoparticles and green synthesis method and application thereof
  • Nickel ferrite nanoparticles and green synthesis method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A green synthesis method for nickel ferrite nanoparticles, comprising the following steps:

[0051] 1) Take 10g of fresh water hyacinth lotus stems and leaves and wash them with tap water and distilled water successively, place them in a mortar and grind them into mud, add distilled water to wash the extract 3 times, share 50 mL of distilled water, and combine precipitation each time, three precipitations, and merge and transfer. Put it into a beaker, further place it in a 95-100°C water bath for heating and extraction for 10 minutes, cool it to room temperature, filter it with suction, take the supernatant and dilute to 50mL to obtain the water hyacinth lotus extract;

[0052] 2) take nickel chloride and ferric nitrate and be dissolved in 100mL deionized water, make its final concentration be respectively 0.15mol / L and 0.30mol / L; placed on a magnetic stirrer and stirred continuously for 20 min; the obtained mixture was placed in a 60°C water bath and heated at constant...

Embodiment 2

[0057] A green synthesis method for nickel ferrite nanoparticles, comprising the following steps:

[0058] 1) Take 10g of fresh water hyacinth lotus leaves and wash them with tap water and distilled water successively, place them in a mortar and grind them into mud, add distilled water to wash the extract 3 times, share 50mL of distilled water, keep the precipitation each time, combine the precipitation three times, and further Place in a 95-100°C water bath for heating and extraction for 10min, cool to room temperature, filter with suction and dilute to 50mL to obtain water hyacinth lotus extract;

[0059] 2) Weigh nickel acetate and ferric chloride and dissolve them in 100mL deionized water, so that their final concentrations are respectively 0.15mol / L and 0.30mol / L; at room temperature, the prepared 50mL water hyacinth extract is added to the above-mentioned salt solution , placed on a magnetic stirrer and continuously stirred for 20 min; the obtained mixture was placed in ...

Embodiment 3

[0062] A green synthesis method for nickel ferrite nanoparticles, comprising the following steps:

[0063] 1) Take 10g of fresh water hyacinth lotus stems and wash them with tap water and distilled water successively, place them in a mortar and grind them into mud, add distilled water to wash the extract 3 times, share 50 mL of distilled water, retain the precipitation each time, and combine the precipitations for three times, then further. Place in a 95-100°C water bath for heating and extraction for 10min, cool to room temperature, filter with suction and dilute to 50mL to obtain water hyacinth lotus extract;

[0064] 2) Weigh nickel acetate and ferric chloride and dissolve them in 100mL deionized water, so that their final concentrations are respectively 0.15mol / L and 0.30mol / L; at room temperature, the prepared 50mL water hyacinth extract is added to the above-mentioned salt solution , placed on a magnetic stirrer and continuously stirred for 20 min; the obtained mixture w...

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Abstract

The invention provides nickel ferrite nanoparticles and a preparation method and application thereof in promoting hydrogen production, a water hyacinth extracting solution is adopted as a stabilizer and a regulator, a mixed solution of nickel salt and ferric salt is added, continuous stirring reaction is performed, constant-temperature heating reaction is performed in a water bath kettle, and viscous gel is obtained and dried; and calcining, grinding, washing and drying the product to obtain the nickel ferrite nanoparticles. In the preparation process, no extra chemical reagent is added except the precursor nickel salt and the ferric salt, expensive instruments and equipment are not needed, the operation condition is mild, the method is simple and easy to implement, economical and environmentally friendly, and further expanded production and application are facilitated. The prepared nickel ferrite nanoparticles are stable in performance, relatively uniform in particle size and good in biocompatibility, and have the effects of promoting biological hydrogen synthesis and utilizing reducing sugar in straw hydrolysate after being added into a dark fermentation hydrogen production system; and the accumulated hydrogen yield, the glucose utilization rate and the xylose utilization rate obtained under the optimal addition concentration are respectively and obviously improved compared with control treatment.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials and biological hydrogen energy synthesis regulation, and particularly relates to a nickel ferrite nanoparticle, a green synthesis method thereof, and an application of promoting hydrogen production. Background technique [0002] Nanotechnology is an important strategic emerging technology for mankind in the 21st century. So far, most nanomaterials have been synthesized by physical methods or chemical methods. However, physical methods have high energy and economic requirements in terms of preparation conditions, and require stabilizers to disperse the prepared nanoparticles. Chemical methods can produce nanoparticles in a relatively short time, but most of them use toxic and harmful chemical raw materials and have low biocompatibility, which greatly limits the application of nanomaterials in the biological and medical fields. In recent years, with the application prospect of metal nanoparti...

Claims

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Application Information

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IPC IPC(8): C01G53/00C12P3/00B82Y40/00B82Y25/00
CPCC01G53/00C12P3/00B82Y40/00B82Y25/00C01P2002/72C01P2002/82C01P2004/03C01P2004/04C01P2006/42C01P2004/64Y02E60/50
Inventor 张琴曹娟娟赵沛张永贵许思远叶景钱程
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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