Unlock instant, AI-driven research and patent intelligence for your innovation.
Ferric aluminum silicon composite carbon-based electrode and application thereof in decoloration of wastewater
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A composite carbon and base electrode technology, applied in water/sewage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc. Low environmental requirements, good wastewater decolorization effect, and simple preparation process
Active Publication Date: 2012-12-26
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The cathode of the inventive device is mainly composed of carbon nanotubes, polytetrafluoroethylene and gamma-basic iron oxide. The cathode prepared by physical methods is immersed in the medium, and the coating is prone to blistering, softening, and large-scale peeling off. , causing the coating to lose its catalytic function
Its cathode material carbon nanotubes and titanium mesh are expensive, which increases the overall cost and is not conducive to its wide application
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
[0036] 2) Soak the carbon felt in the above solution, stir and heat to 80°C, add dropwise 1.5M ammonia water to precipitate iron, silicon, and aluminum in the carbon felt, and react for 2 hours;
[0037] 3) After the heat preservation reaction is complete, take out the carbon-based material, first dry it at 110°C for 24 hours, wash it with deionized water three times, and dry it again at 110°C for 24 hours to obtain an iron-aluminum-silicon composite carbon-based electrode.
[0040] 2) Soak the carbon fibers in the above solution, stir and heat to 85°C, add dropwise 2.0M ammonia water to precipitate iron, silicon, and aluminum in the carbon fibers, and react for 1.5 hours;
[0041] 3) After the insulation reaction was complete, the carbon-based material was taken out, first dried at 100°C for 28 hours, washed three times with deionized water, and dried again at 105°C for 24 hours to obtain an iron-aluminum-silicon composite carbon-based electrode.
Embodiment 3
[0043] 1) Mix the aqueous solution of tetraethyl sodiumorthosilicate, ferric perchlorate, and aluminum trichloride with ethanol to obtain a mixed solution. In the mixed solution, tetraethyl orthosilicate, ferric perchlorate, and aluminum trichloride , The molar concentration of ethanol is respectively 1.10M, 0.19M, 0.21M, 0.95M;
[0044] 2) Soak the carbon cloth in the above solution, stir and heat to 82°C, add dropwise 1.5M ammonia water to precipitate iron, silicon, and aluminum in the carbon cloth, and react for 2.0 hours;
[0045] 3) After the insulation reaction was complete, the carbon-based material was taken out, firstly dried at 100°C for 30 hours, washed three times with deionized water, and dried again at 110°C for 24 hours to obtain an iron-aluminum-silicon composite carbon-based electrode.
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
Property
Measurement
Unit
decolorization rate
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a ferric aluminum silicon composite carbon-based electrode and application thereof in decoloration of wastewater. A preparation method for the ferric aluminum silicon composite carbon-based electrode comprises the following steps of: mixing aqueous solution of tetraethyl orthosilicate, ferricperchlorate and aluminum choride and ethanol to obtain mixed solution; putting a carbon-based material into the mixed solution, stirring, heating to 75 to 85 DEG C, and adding ammonia water, so that iron, silicon and aluminum are deposited on the carbon-based material; and after performing a heat-preserving reaction completely, taking the carbon-based material out, drying for the first time, washing, and drying again to obtain the ferric aluminum silicon composite carbon-based electrode. The ferric aluminum silicon composite carbon-based electrode is used as a cathode of an electro-Fenton system, so a Fenton reagent can be provided continuously at the cathode and performs a Fenton reaction with hydrogenperoxide effectively to generate hydroxyl free radicals with high oxidability to oxidize organic matters in the wastewater, and the decoloration effect of the wastewater is desirable. The electrode has a simple preparation process, is low in cost, has low requirement on using environment and can be used under the condition of neutral pH, and the catalytic efficiency is far higher than that of ferric oxides s.
Description
Technical field [0001] The present invention involves a method of preparation and application of an electrode, which specializes in iron aluminum -silicon -silicon composite carbon -based electrodes and its application in wastewater. Background technique [0002] The components of printing and dyeing wastewater are very complicated. It is a kind of difficult to degrade organic wastewater and has serious pollution to the environment.Dye wastewater contains a large amount of residual dyes and additives. The main pollution factors include suspension (SS), chemical oxygen demand (COD), heat, color, acidic, alkaline, and other soluble substances.The chroma produced by the residual dyes is the main problem for the processing of printing and dyeing wastewater.At this stage, the discoloration method of dye wastewater cannot be effectively used alone.For example, the flocculation method is not obvious on the decolorization effect of soluble dyes, and a large amount of sludge will be gener...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/72
Inventor 庄莉袁勇周顺桂王跃强
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
Login to View More