Solar sewage purification airgel based on waste paper and graphite and its preparation method
A technology for purifying gas and solar energy, applied in the field of solar photothermal water evaporation materials, can solve the problems of low solar evaporation rate and hinder the practical application of photothermal materials, etc., and achieve the effects of wide application range, excellent hydrophilic performance and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] A preparation method of solar sewage purification airgel based on waste paper and graphite, comprising the steps of:
[0032] (1) Add 0.4g of graphite powder, 15mL of N-methylpyrrolidone (NMP) and 120g of two kinds of zirconia balls into a zirconia ball mill jar, mill for 4 hours, then filter the resulting mixture and dry at 60°C for 1.5 hours , to obtain ball-milled graphite powder after grinding;
[0033] (2) Add 3 g of ball-milled graphite powder and 30 mL of concentrated sulfuric acid into the container, and keep stirring in a water bath at 80° C. for 4 h. The obtained acidified ball-milled graphite is repeatedly filtered and washed with deionized water until the pH of the supernatant is 6, and the acidified ball-milled graphite powder is obtained by freeze-drying;
[0034] (3) Add 1 g of waste paper scraps to a mixed solution of 50 ml of water, 1 g of NaOH and 5 g of thiourea and stir for 2 h, put the mixture into the refrigerator to freeze for 12 h, then ball mil...
Embodiment 2
[0038] A preparation method of solar sewage purification airgel based on waste paper and graphite, comprising the steps of:
[0039] (1) Add 0.6g of graphite powder, 20mL of N-methylpyrrolidone (NMP) and 150g of two kinds of zirconia balls into a zirconia ball mill jar, mill for 6 hours, then filter the obtained mixture, and dry at 80°C for 2 hours, Obtain ball-milled graphite powder after grinding;
[0040] (2) Add 4 g of ball-milled graphite powder and 40 mL of concentrated sulfuric acid into the container, and keep stirring in a water bath at 80° C. for 5 h. The obtained acidified ball-milled graphite is repeatedly filtered and washed with deionized water until the pH of the supernatant is 5-6, and the acidified ball-milled graphite powder is obtained by freeze-drying; the prepared ball-milled graphite sheet (BG) and flake graphite raw material (graphite) (Guangdong Tianrun Electronic Materials Co., Ltd.), the peak intensity of the X-ray diffraction peak is greatly reduced...
Embodiment 3
[0046] A preparation method of solar sewage purification airgel based on waste paper and graphite, comprising the steps of:
[0047] (1) Add 0.8g of graphite powder, 25mL of N-methylpyrrolidone (NMP) and 180g of two kinds of zirconia balls into a zirconia ball mill jar, mill for 8 hours, then filter the resulting mixture and dry at 80°C for 2.5 hours , to obtain ball-milled graphite powder after grinding;
[0048] (2) Add 5 g of ball-milled graphite powder and 50 mL of concentrated sulfuric acid into the container, and keep stirring in a water bath at 80° C. for 6 h. The obtained acidified ball-milled graphite is repeatedly filtered and washed with deionized water until the pH of the supernatant is 5-6, and the acidified ball-milled graphite powder is obtained by freeze-drying;
[0049] (3) Add 2g of waste paper scraps to a mixed solution of 150ml of water, 3g of NaOH and 10g of thiourea and stir for 3h, put the mixture into the refrigerator for freezing for 24h, then ball mi...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More