Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation and application methods of Cu2O-AC (activated carbon) photocatalyst

A photocatalyst and activated carbon technology, applied in the fields of photocatalysis and comprehensive utilization of resources, can solve the problem of high production cost, and achieve the effects of short reaction time, simple operation and low cost.

Active Publication Date: 2018-07-27
KUNMING UNIV OF SCI & TECH
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 , ZnO loaded on the carrier as a catalyst, the production cost is high

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
  • Preparation and application methods of Cu2O-AC (activated carbon) photocatalyst
  • Preparation and application methods of Cu2O-AC (activated carbon) photocatalyst
  • Preparation and application methods of Cu2O-AC (activated carbon) photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The Cu 2 The preparation method of O-AC photocatalyst, its concrete steps are as follows:

[0025] Step 1. First put the discarded activated carbon (the activated carbon is 150 mesh, and the methylene blue value is 30 mg / g) in distilled water, wash it with a 50W ultrasonic wave at room temperature for 60 minutes, and then dry it at 105°C for 12 hours;

[0026] Step 2. Mix the waste activated carbon cleaned in step 1 with CuO powder at a mass ratio of 4:1, and roast for 20 minutes under the conditions of an inert gas (nitrogen) pressure of 3 MPa, a microwave power of 400 W, and a roasting temperature of 700 ° C to prepare Cu 2 O-AC photocatalyst.

[0027] The above Cu 2 O-AC photocatalyst application, the Cu 2 O-AC can be used to adsorb dye wastewater and photocatalyze the degradation of malachite green dye.

[0028] Cu prepared by the above steps 2 The methylene blue value of the O-AC photocatalyst was 150 mg / g, and the degradation rate of malachite green with an i...

Embodiment 2

[0030] The Cu 2 The preparation method of O-AC photocatalyst, its concrete steps are as follows:

[0031] Step 1. First put the discarded activated carbon (the activated carbon is 200 mesh, the methylene blue value is 45mg / g) in distilled water, wash it with ultrasonic power of 100W at room temperature for 180min, and then dry it at 105℃ for 12h;

[0032] Step 2. Mix the waste activated carbon cleaned in step 1 with CuO powder at a mass ratio of 5:2, and roast for 30 minutes under the conditions of an inert gas (nitrogen) pressure of 3 MPa, a microwave power of 400 W, and a roasting temperature of 800 ° C to prepare Cu 2 O-AC photocatalyst.

[0033] The Cu prepared in this example 2 The scanning electron microscope image of O-AC is as follows figure 1 shown, from figure 1 It can be seen that the modified activated carbon is supported by the formed metal microcrystals, the surface of activated carbon has less collapse phenomenon, and the Cu on the surface of activated carbo...

Embodiment 3

[0038] The Cu 2 The preparation method of O-AC photocatalyst, its concrete steps are as follows:

[0039] Step 1. First put the discarded activated carbon (the activated carbon is 300 mesh, the methylene blue value is 60mg / g) in distilled water, wash it with an ultrasonic wave with a power of 80W at room temperature for 120min, and then dry it at 105°C for 12h;

[0040] Step 2. Mix the waste activated carbon cleaned in step 1 with CuO powder at a mass ratio of 3:2, and roast for 30 minutes under the conditions of an inert gas (nitrogen) pressure of 2 MPa, a microwave power of 200 W, and a roasting temperature of 300 ° C to prepare Cu 2 O-AC photocatalyst.

[0041] The above Cu 2O-AC photocatalyst application, the Cu 2 O-AC can be used to adsorb dye wastewater and photocatalyze the degradation of malachite green dye.

[0042] Cu prepared by the above steps 2 The methylene blue value of the O-AC photocatalyst was 135 mg / g, and the degradation rate of malachite green with an...

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

No PUM Login to View More

Abstract

The invention relates to preparation and application methods of a Cu2O-AC photocatalyst and belongs to the fields of photocatalysis and resource comprehensive utilization technology. The preparation method comprises, with the existence of ultrasonic waves with power of 50-100 W and at room temperature, washing waste activated carbon in distilled water for 60-180 min and then drying the washed waste activated carbon; mixing the washed waste activated carbon with CuO powder at a weight ratio of 3-5:1-2, and then calcinating the mixture for 10-30 min at an inert gas pressure of 2-4 MPa, a microwave power of 200-800 W and a calcination temperature of 300-900 DEG C to prepare the Cu2O-AC photocatalyst. By taking the waste activated carbon as the raw material, the preparation method of the Cu2O-AC photocatalyst reduces discharge and pollution of waste to the environment and accordingly achieves comprehensive utilization of waste.

Description

technical field [0001] The present invention relates to a Cu 2 The preparation method and application of the O-AC photocatalyst belong to the field of photocatalysis and the technical field of comprehensive utilization of resources. Background technique [0002] Activated carbon (AC) is a kind of accumulation of hexacyclic compounds composed of carbon. Due to the irregular arrangement of hexacyclic compounds, activated carbon has the characteristics of a microporous system and a high specific surface area, and is an excellent adsorbent. With the widespread use of activated carbon, more and more waste activated carbon is generated. If the waste activated carbon is not utilized, it will easily cause environmental pollution to the surrounding environment. At present, the method of regeneration can only recover part of its adsorption performance, so metal loading is often used to modify the activity, so as to improve its adsorption performance. [0003] Cu 2 O is a very valu...

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): B01J23/72B01J37/34C02F1/30C02F101/36C02F101/38
CPCC02F1/30B01J23/72B01J37/346C02F2101/308C02F2101/40C02F2101/38C02F2101/36C02F2305/10B01J35/39
Inventor 夏洪应蒋鑫张利波彭金辉程松舒建华
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com