Carbonized Material Ozone Decomposition
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Solution Overview
Problem
Conventional methods for decomposing ozone require low humidity or external energy input, making them inconvenient and ineffective in high humidity environments, and they do not adequately address the health risks associated with ozone exposure.
Innovation Solution
A carbonized material with specific oxygen-containing groups, such as carbonyl, carbonyloxy, and oxycarbonyl groups, is developed, which can decompose ozone into oxygen and carbon dioxide at room temperature without external energy, even in high humidity conditions, using natural materials like rice husk and waste mushroom beds, and is integrated into an ozone removal device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to decompose ozone, then ozone decomposition can be achieved, but external energy input or low humidity conditions are required which reduce convenience and increase operational complexity
Solution Approach 1:
The carbonized material with carbonyl-containing groups autonomously decomposes ozone through chemical reaction without requiring external energy input such as UV light, heat, or electricity. The material self-activates upon contact with ozone, converting it to oxygen and carbon dioxide, thereby eliminating the need for external power sources or complex control systems.
Solution Approach 2:
The invention changes the chemical composition parameters of the carbonized material by introducing specific carbonyl-containing groups (such as acetyl, formyl, or carboxyl groups) at controlled ratios. This parameter modification enables the material to effectively decompose ozone under ambient conditions without requiring external energy input or specific humidity control, thus resolving the contradiction between decomposition effectiveness and operational convenience.
2Reliability
If conventional ozone decomposition methods are used, then ozone can be broken down, but they require low humidity conditions which limit adaptability to various environmental conditions
Solution Approach 1:
The carbonized material is engineered with specific carbonyl-containing group ratios (5-50% of total carbon atoms) that enable effective ozone decomposition across a wide humidity range from 30% to 90% RH. This compositional parameter change allows the material to maintain high decomposition efficiency regardless of environmental humidity conditions, significantly improving adaptability compared to conventional methods.
Solution Approach 2:
The invention creates a composite carbonized material combining carbon backbone structure with oxygen-containing carbonyl groups (acetyl, formyl, or carboxyl groups). This composite structure provides both the stability needed for structural integrity and the reactivity required for ozone decomposition across varying humidity conditions, enhancing versatility without sacrificing reliability.
3Object-affected harmful factors
If conventional materials are used for ozone decomposition, then some ozone removal is achieved, but decomposition rates are insufficient to effectively reduce health risks
Solution Approach 1:
The carbonized material achieves superior ozone decomposition rates by optimizing the ratio of carbonyl-containing groups to total carbon atoms (5-50%). This parameter optimization creates highly reactive sites that rapidly decompose ozone molecules upon contact, achieving decomposition rates sufficient to reduce ozone concentrations to safe levels and effectively mitigate health risks associated with ozone exposure.
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 carbonized material achieves ozone decomposition rates greater than 99.9% at room temperature across a wide humidity range, effectively reducing ozone toxicity without the need for external energy, making it suitable for various applications.
Implementation Method 1
the ozone of the gas reacts with the carbonized material
Implementation Method 2
the strong oxidative power of ozone can induce health problems
Implementation Method 3
the carbonized material has at least one carbonyl-containing group
Data Source
AI summary
A carbonized material, a device for removing ozone, and a method for removing ozone are provided. The carbonized material has at least a carbonyl-containing group, alkylol group, and carbon having sp2 hybrid orbital. In particular, the at least one carbonyl-containing group has a carbon content from 10 atom % to 30 atom %, based on the total carbon atoms of the at least one carbonyl-containing group, the at least one alkylol group, and the at least one carbon having sp2 hybrid orbital.