CeO2 photocatalysis composite material, preparation method of CeO2 photocatalysis composite material and hospital sewage treatment method
A composite material and photocatalytic technology, which is applied in the CeO2 photocatalytic composite material and its preparation, and in the field of hospital sewage treatment, can solve the problems of poor purification effect of photocatalyst, achieve improved photocatalytic effect, simple process, and easy control of reaction conditions Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] a CeO 2 A method for preparing a photocatalytic composite material, comprising:
[0034] (1) At room temperature, the commercial Ce 2 (CO 3 ) 3 ·8H 2 O powder and H 2 o 2 Mix according to the mass ratio of 1:1.61, and let it stand for 90 minutes; then, add a mixed solvent of distilled water and ethylene glycol with a volume ratio of 1:2, the amount of the mixed solvent added is 3 / 10 of the volume of the reactor, and the Under hydrothermal reaction for 26h; after centrifugation, washing and drying, the mesoporous CeO 2 Powder; drying temperature is 80°C, drying time is 12h;
[0035] (2) The mesoporous CeO 2 The powder was ultrasonically dispersed in distilled water, and then AgNO with a concentration of 0.05mol / L was added dropwise 3 The solution was stirred for 80min, and then NaHCO with a concentration of 0.05mol / L was added 3 The solution was stirred for 80min; through centrifugation, washing and drying, the first intermediate product was obtained; the first...
Embodiment 2
[0043] a CeO 2 A method for preparing a photocatalytic composite material, comprising:
[0044] (1) At room temperature, the commercial Ce 2 (CO 3 ) 3 ·8H 2 O powder and H 2 o 2 Mix according to the mass ratio of 1:4.02, and let it stand for 90 minutes; then, add a mixed solvent of distilled water and ethylene glycol with a volume ratio of 1:3, the amount of the mixed solvent is 7 / 10 of the volume of the reactor, and heat Under hydrothermal reaction for 22h; after centrifugation, washing and drying, the mesoporous CeO 2 Powder; drying temperature is 80°C, drying time is 12h;
[0045] (2) The mesoporous CeO 2 The powder was ultrasonically dispersed in distilled water, and then AgNO with a concentration of 0.2mol / L was added dropwise 3 The solution was stirred for 80min, and then NaHCO with a concentration of 0.2mol / L was added 3 The solution was stirred for 80min; through centrifugation, washing and drying, the first intermediate product was obtained; the first interm...
Embodiment 3
[0053] a CeO 2 A method for preparing a photocatalytic composite material, comprising:
[0054] (1) At room temperature, the commercial Ce 2 (CO 3 ) 3 ·8H 2 O powder and H 2 o 2 Mix according to the mass ratio of 1:8.03, and let it stand for 60 minutes; then, add a mixed solvent of distilled water and ethylene glycol with a volume ratio of 1:2.5, the amount of the mixed solvent is 5 / 10 of the volume of the reactor, and heat Under hydrothermal reaction for 24h; after centrifugation, washing and drying, the mesoporous CeO 2 Powder; drying temperature is 70°C, drying time is 18h;
[0055] (2) The mesoporous CeO 2 The powder is ultrasonically dispersed in distilled water, and then AgNO with a concentration of 0.05-0.2mol / L is added dropwise 3 The solution was stirred for 60min, and then NaHCO with a concentration of 0.1mol / L was added 3 The solution was stirred for 60 min; through centrifugation, washing and drying, the first intermediate product was obtained; the first ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More