Preparation method for gold-coated zinc oxide flower-like microspheres

A flower-shaped microsphere, zinc oxide technology, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, nanotechnology, etc., can solve the problem of lack of gold-coated zinc oxide flower-shaped microsphere preparation method, etc., to achieve good gas sensor performance and light. The effect of catalytic performance, large synthesis amount, and strong detection ability
CN104609459AInactive Publication Date: 2015-05-13YANGZHOU UNIV
5 Cites 26 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YANGZHOU UNIV
Publication Date
2015-05-13
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method for gold-coated zinc oxide flower-like microspheres. The preparation method comprises the following steps: (1) weighing Zn(CH3COOH)2.2H2O powder, trisodium citrate dihydrate powder and hexamethylenetetramine and dissolving in 100 ml of de-ionized water, wherein a molar ratio of Zn(CH3COOH)2.2H2O powder to trisodium citrate dihydrate powder to hexamethylenetetramine is 10 to 1 to 10; (2) putting a mixed solution into a serum bottle, reacting for 3-5 hours, taking out the serum bottle and cooling at a normal temperature; (3) performing centrifuging and cleaning on obtained precipitates and drying a product at 50-70 DEG C for 12 hours; (4) annealing at 400 DEG C for 30 minutes to obtain flower-like ZnO powder; (5) adding the ZnO powder into the de-ionized water, adding HAuCl4.4H2O, adding trisodium citrate dihydrate, and reacting; (6) performing centrifugation and cleaning on obtained precipitates to prepare the gold-coated zinc oxide flower-like microspheres. The gold-coated zinc oxide flower-like microspheres are good in gas-sensitive sensor performance and photocatalytic performance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of photocatalysis and gas sensors, in particular to a preparation method of gold-coated zinc oxide flower-like microspheres. technical background

[0002] With the continuous development of chemical industry, various additives, plasticizers and other materials are used in various fields. As an external plasticizer, dibutyl phthalate DBP is widely used as a plasticizer in PVC, and also used as a softener in synthetic materials such as digested cotton synthetic rubber, acetate fiber, and leather chemical paints. When the concentration of DBP reaches 1000ppm, it will cause harm to the human body and is a suspected teratogen. Abdominal obesity, or insulin resistance, is a precursor to diabetes, according to a study published in Environmental Health Perspectives using CDC data from the U.S. Centers for Disease Control and Prevention. of U.S. men had higher levels of DEHP and DBP metabolites in their urine than men withou...

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