Manganese dioxide/corn straw nanomaterial and preparation method and application thereof

A corn stalk, manganese dioxide technology, applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., to avoid centrifugation or filtration operations, excellent purification effect, and simplify the purification process.

Inactive Publication Date: 2019-02-01
TAIYUAN INST OF TECH
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the synthesis of nano-manganese dioxide materials through the in situ redox reaction of corn stalks and potassium permanganate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manganese dioxide/corn straw nanomaterial and preparation method and application thereof
  • Manganese dioxide/corn straw nanomaterial and preparation method and application thereof
  • Manganese dioxide/corn straw nanomaterial and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) The corn stalks were manually peeled off from the dry corn stalks, washed ten times with deionized water, dried naturally, and cut into small pieces of 10 mg;

[0027] (2) Weigh 0.07915 g of potassium permanganate into a clean beaker, dissolve it and dilute to 500 mL, and prepare a 1 mmol / L potassium permanganate solution.

[0028] (3) Take 4 pieces of 40 mg corn stalks in 20 mL of 1 mmol L -1 In the potassium permanganate solution, react 60 min under the condition of continuous stirring at 300 rpm;

[0029] (4) The reacted corn stalks were taken out, washed ten times with deionized water, and dried naturally to obtain the manganese dioxide / corn stalk nanomaterials.

[0030] figure 1 For the morphology characterization of the material by scanning electron microscope (JSM-7500F, JEOL) (A) and the morphology characterization of the material after thermal alkali treatment and filtration by transmission electron microscope (Tecnai-G20, FEI, USA) (B) . The A graph ...

Embodiment 2

[0039] (1) The corn stalks were manually peeled off from the dry corn stalks, washed ten times with deionized water, dried naturally, and cut into small pieces of 10 mg;

[0040] (2) Weigh 0.07915 g of potassium permanganate into a clean beaker, dissolve it and dilute to 500 mL, and prepare a 1 mmol / L potassium permanganate solution.

[0041] (3) Take 6 pieces of 60 mg corn stalks and place them in 20 mL of 1 mmol / L potassium permanganate solution, and react for 90 min under the condition of continuous stirring at 200 rpm;

[0042] (4) The reacted corn stalks were taken out, washed ten times with deionized water, and dried naturally to obtain the manganese dioxide / corn stalk nanomaterials.

Embodiment 3

[0044] (1) The corn stalks were manually peeled off from the dry corn stalks, washed ten times with deionized water, dried naturally, and then cut into small pieces of 20 mg;

[0045] (2) Weigh 0.07915 g of potassium permanganate into a clean beaker, dissolve it and dilute to 500 mL, and prepare a 1 mmol / L potassium permanganate solution.

[0046] (3) Four pieces of corn stalks totaling 80 mg were placed in 10 mL of 1 mmol / L potassium permanganate solution and reacted for 120 min under constant stirring at 300 rpm;

[0047] (4) The reacted corn stalks were taken out, washed ten times with deionized water, and dried naturally to obtain the manganese dioxide / corn stalk nanomaterials.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a manganese dioxide / corn straw nanomaterial and a preparation method and an application thereof, and belongs to the technical field of nanomaterial preparation. The preparationmethod comprises the steps: peeling corn straw from dried corn stalks, washing cleanly and air-drying, and cutting into 10-20 mg small pieces; taking the corn straw, placing in a potassium permanganate solution, and carrying out a reaction for 60-120 min under continuous stirring, wherein at the moment, the straw changes from white into dark brown; and taking out the straw, washing cleanly and air-drying, to obtain the manganese dioxide / corn straw nanomaterial. The material has the particle size of 3.6-11.7 nm, and the material is attached onto the corn straw. The stirring is completed in anopening environment at room temperature, and no complex instruments and equipment are needed, so the preparation method has the advantages of simpleness, low consumption and environmental protection;the manganese dioxide / corn straw nanomaterial has excellent removal effect on methylene blue dyes, tedious centrifugation or filtering operations during monitoring of purification process and post-treatment are avoided, and the purification process is greatly simplified.

Description

technical field [0001] The invention relates to a manganese dioxide / corn stalk nano material and a preparation method and application thereof, belonging to the technical field of nano material preparation. Background technique [0002] Water pollution has always been a serious problem, and water resources, water quality and water treatment have become the main concerns of the public and the government. As a common water pollutant, dyes have negative effects on the natural environment and human health (L. Zhang, Y. Nie, C. Hu, X. Hu, J. Hazard. Mater. , 2011, 190, 780-785.), so it is very necessary to remove these harmful dyes in water purification. Designing novel technologies or enhancing existing ones, nanomaterials show a variety of potential applications in water treatment, especially dye purification (F. Perreault, A. F. de Faria, M. Elimelech, Chem. Soc. Rev. , 2015, 44, 5861-5896.). Manganese dioxide nanomaterials have been widely used in the field of water purifi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28
CPCB01J20/06B01J20/24C02F1/281C02F1/286C02F2101/308
Inventor 王琦马春蕾马旭璐
Owner TAIYUAN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap