TiO2 Photocatalyst with Copper and Magnesium for Visible Light Deodorization
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Solution Overview
Problem
Current antibacterial deodorants using titanium dioxide photocatalysts are limited by poor photocatalytic efficiency in the visible light region and dispersion issues due to the size of the titanium dioxide particles, with anatase TiO2 only reacting under ultraviolet conditions and not in the visible light spectrum that constitutes most sunlight.
Innovation Solution
An antibacterial deodorant formulation incorporating a titanium dioxide photocatalyst with copper and magnesium, which enhances photocatalytic efficiency in the visible light region and improves dispersion by adjusting the particle diameter and incorporating zirconia and silver, allowing for effective sterilization and deodorization across a broader light spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If anatase titanium dioxide photocatalyst is used, then photocatalytic oxidation energy is improved, but photoresponse is limited to ultraviolet region only
Solution Approach 1:
The patent uses a composite material system consisting of anatase titanium dioxide combined with copper and magnesium elements. This composite structure allows the material to maintain the high photocatalytic oxidation energy of anatase TiO2 while the copper and magnesium components extend the photoresponse to the visible light region, resolving the contradiction between oxidation power and spectral adaptability
Solution Approach 2:
The patent modifies the physical and chemical parameters of the titanium dioxide photocatalyst by controlling particle diameter (100-500 nm range) and incorporating copper-magnesium compounds. These parameter changes enable the material to absorb visible light while maintaining photocatalytic activity, thus expanding the photoresponse range without sacrificing oxidation energy
2Ease of manufacture
If pure titanium dioxide photocatalyst is added without special processing, then manufacturing simplicity is improved, but dispersion force is deteriorated
Solution Approach 1:
The patent controls the particle diameter parameter of the titanium dioxide photocatalyst within the 100-500 nm range and incorporates copper and magnesium compounds during synthesis. This parameter optimization improves dispersion force and prevents aggregation, while the manufacturing process remains relatively simple and suitable for industrial production
Solution Approach 2:
By creating a composite material system of TiO2-Cu-Mg, the patent achieves better dispersion characteristics compared to pure TiO2. The composite structure prevents particle aggregation and improves stability in the deodorant formulation, while maintaining ease of manufacture through a integrated synthesis approach
3Stability of the object's composition
If titanium dioxide photocatalyst with specific particle diameter is used, then dispersion force is improved, but manufacturing complexity is increased
Solution Approach 1:
The patent specifies a particle diameter range of 100-500 nm for the titanium dioxide photocatalyst, which optimizes dispersion force. This parameter control is achieved through controlled synthesis methods that balance manufacturing complexity with performance requirements, making the process feasible for industrial production
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 antibacterial deodorant exhibits improved photocatalytic efficiency and dispersion, effectively decomposing odor substances, viruses, and bacteria under visible light, providing enhanced chemical sterilization and deodorization while maintaining economic advantages.
Implementation Method 1
A titanium dioxide photocatalyst may have strong chemical sterilization activity due to OH radicals formed by light energy irradiation
Data Source
AI summary
Provided is an antibacterial deodorant containing a titanium dioxide photocatalyst, including: a titanium dioxide photocatalyst; and a composition for antibacterial deodorization, wherein the titanium dioxide photocatalyst includes titanium dioxide (TiO2), copper (Cu), and magnesium (Mg).