Core-Shell Superoxide Composition for Air Purification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for generating superoxide in air and water purification require light irradiation or plasma, resulting in inefficient superoxide production and the need for additional equipment.
Innovation Solution
A superoxide-generating composition is created by coating a shell with a calcium compound onto a core containing a superoxide-generating compound, using a silica precursor, to extend the half-life of superoxide and enable natural generation without light or plasma.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If light irradiation or plasma is used to generate superoxide, then superoxide can be generated, but additional equipment is required and the process becomes complex
Solution Approach 1:
The composition utilizes ambient moisture in the air to generate superoxide through the reaction between the superoxide-generating compound and water, eliminating the need for external light irradiation or plasma generation equipment. The system serves itself by using naturally present environmental components.
Solution Approach 2:
The patent replaces the mechanical/electrical systems (light irradiation devices, plasma generators) with a chemical reaction system based on moisture interaction. This substitution eliminates complex equipment while achieving superoxide generation through a simple chemical mechanism.
2Quantity of substance
If conventional methods are used to generate superoxide, then superoxide is produced, but its half-life is short and it disappears quickly
Solution Approach 1:
The patent employs a core-shell structure where the superoxide-generating compound is embedded in a core material, which is then coated with a shell containing calcium compound. This nested structure protects the generating compound and controls the release mechanism, extending superoxide half-life.
Solution Approach 2:
The calcium compound in the shell acts as an intermediary that reacts with generated superoxide to form stable calcium superoxide, preventing rapid decomposition. This intermediary mechanism extends the effective half-life of superoxide in the composition.
3Quantity of substance
If photocatalytic reaction is used with titanium dioxide, then superoxide can be generated by light irradiation, but the process requires UV light and is less efficient
Solution Approach 1:
The patent changes the activation parameter from requiring UV light irradiation to utilizing ambient moisture. This parameter change enables superoxide generation under normal environmental conditions without special lighting requirements, improving ease of manufacture and deployment.
Solution Approach 2:
The patent replaces the photocatalytic mechanism requiring UV light with a moisture-based chemical reaction mechanism. This substitution eliminates the need for UV light sources and simplifies the manufacturing and deployment process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition effectively delays the disappearance of superoxide and generates it naturally, improving efficiency and eliminating the need for additional equipment.
Implementation Method 1
coating a shell having a calcium compound attached thereto on the surface of a core having a superoxide-generating composition attached thereto so that superoxide generated from the core can pass through the shell having the calcium compound attached thereto to extend the half-life of the superoxide
Implementation Method 2
the superoxide-generating composition can naturally generate superoxide without having to use light irradiation or plasma
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
The present invention relates to a method for preparing a superoxide-generating composition and a superoxide-generating composition prepared by the method. Specifically, the method comprises coating a shell having a calcium compound attached thereto on the surface of a core having a superoxide-generating composition attached thereto so that superoxide generated from the core can pass through the shell having the calcium compound attached thereto to extend the half-life of the superoxide to thereby delay the disappearance of the superoxide, and the superoxide-generating composition can naturally generate superoxide without having to use light irradiation or plasma.