Ceramic Catalyst Filter With Channel LEDs for Dual Air Purification
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Solution Overview
Problem
Existing filters are limited in their ability to simultaneously and efficiently remove both particulate and gaseous contaminants, such as fine dust and volatile organic compounds, and often require replacement due to non-recyclable materials.
Innovation Solution
A recyclable ceramic catalyst filter system that includes a single body structure with channels for air flow, equipped with a light-emitting unit to activate a photocatalytic material for simultaneous filtration of particulate and gaseous contaminants using light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single filter is used to simultaneously filter particulate matter and gaseous matter, then filtering versatility is improved, but device complexity increases
Solution Approach 1:
The patent merges particulate filtration and gaseous contaminant removal functions into a single catalyst filter body. The filter simultaneously captures particles through physical filtration and decomposes gaseous contaminants through photocatalytic action on its surface, eliminating the need for separate filtration stages or multiple filters.
Solution Approach 2:
The catalyst filter is designed with multi-functionality, serving both as a physical barrier for particulate matter and as a photocatalytic reactor for gaseous contaminants. The same filter structure performs multiple functions: particle capture, gas decomposition, and self-cleaning through light activation, making it a universal filtration solution.
2Duration of action of stationary object
If a recyclable ceramic catalyst filter is used, then durability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs ceramic materials with specific physical and chemical parameters that enable recyclability and durability. The ceramic structure is designed to withstand repeated light activation cycles and maintain catalytic activity over extended periods, with controlled porosity and surface area parameters optimized for both particle capture and gas decomposition.
Solution Approach 2:
The catalyst filter utilizes composite ceramic materials combining structural ceramic components for durability with photocatalytic materials (such as titanium dioxide) embedded on the surface. This composite structure provides both mechanical strength for repeated use and catalytic functionality for contaminant decomposition, though it increases manufacturing complexity through multi-material integration.
3Productivity
If light sources are used for catalyst activation, then removal efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent replaces high-energy mechanical or thermal treatment methods with optical energy (light) for catalyst activation. Instead of using heat or strong chemical treatments to maintain filter performance, the system uses light-emitting diodes or other light sources to activate the photocatalytic material, which then decomposes gaseous contaminants at ambient temperatures, reducing overall energy consumption.
Solution Approach 2:
The photocatalytic activation by light generates highly reactive oxygen species that act as strong oxidants, rapidly decomposing gaseous contaminants. This accelerated oxidation process occurs on the catalyst surface when exposed to light, significantly improving removal efficiency for volatile organic compounds and other gaseous pollutants without requiring high thermal energy input.
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 system effectively filters both particulate and gaseous contaminants, enhancing removal efficiency and allowing for repeated use of the filter without replacement, thus reducing waste and operational costs.
Implementation Method 1
a light-emitting unit which radiate light towards the catalyst filter for catalyst activation
Implementation Method 2
a single body structure including a first surface blocking a first material; and a second surface from which a second material passing through the first surface is removed
Data Source
AI summary
A filtering system includes a catalyst filter including a plurality of channels through which air is introduced, and a light-emitting device arranged to irradiate light to the catalyst filter for catalyst activation, where the light-emitting device includes a light source array including a plurality of first light sources corresponding one-to-one with the plurality of channels. Each of the plurality of first light sources may include a substrate, a first light-emitting device on the substrate, and a capsule which seals the first light-emitting device on the substrate. Only one first light-emitting device is provided in the capsule, or a second light-emitting device is further provided together with the first light-emitting device in the capsule.