Product Details

Core Application Features

● Air Pollutant Purification

● Negative Ion Release

● Broad-Spectrum Sterilization and Antiviral Protection

● Odor Elimination

● Stain-Resistant and Self-Cleaning

● Wastewater Treatment

Product Contents

Product Overview of Catalyst-Coated Metal Foam

Name: FOAM METAL SUPPORTED CATALYST
Brand: Huayan Intelligent Technology

Basic Definition & Reaction Principle of Catalysts

① Definition of Catalyst

Photocatalyst is an eco-friendly catalytic material with semiconductor ceramic nanopowders (nano titanium dioxide, zinc oxide, tungsten oxide, zirconia, etc.) as core functional components, which are coated or in-situ grown on the surface of porous substrates.Under irradiation of ultraviolet or visible light, photocatalytic reactions take place, enabling multiple functions including harmful gas degradation, broad-spectrum sterilization, biotoxin decomposition, deodorization, anti-fouling and water purification.

② Photocatalytic Mechanism

Light irradiation excites the catalyst to generate highly oxidative active free radicals such as hydroxyl radicals (·OH), superoxide anion radicals (O₂·) and active hydrogen peroxide. Their oxidation capacity is equivalent to high temperature of 3600K, which can break unstable chemical bonds of organic matter and destroy microbial cell structures to realize harmless decomposition.

Typical chemical reaction equations:

1. Formaldehyde degradation: HCHO + 2OA3 = COA2 + HA2O + 2OA2

2. Carbon monoxide purification: CO + OA3 = COA2 + OA2

3. Ammonia deodorization: 2NHA3 + 3OA3 = NA2 + 3HA2O + 3OA2

4. Sterilization Mechanism: Free radicals puncture bacterial cell membranes, break down viral protein carriers, and simultaneously degrade metabolic toxins produced by bacteria, leaving no residual contamination.

Five Core Characteristics of the Catalyst

① Comprehensive Purification CapacitySimultaneously degrades indoor and airborne pollutants including formaldehyde, benzene series, ammonia, TVOC, nitrogen oxides and carbon monoxide; broadly kills various bacteria and fungi, and completely decomposes toxic metabolites released by microorganisms.

② Long-Term Sustainable PerformanceThe catalyst only acts as a catalytic medium and will not be consumed during reactions. As long as the nano catalytic layer remains intact without peeling, it can realize cyclic purification continuously under light irradiation with long service life.

③ Safe & Secondary Pollution-FreeThe catalyst powder itself is non-toxic and harmless. Catalytic decomposition products are only harmless substances such as carbon dioxide, water and nitrogen, without any toxic by-products generated.

④ Multi-Functional IntegrationIntegrates six functions: air purification, negative ion release, sterilization, deodorization, oil stain resistance and water purification. Its superhydrophilic surface endows the substrate with anti-fog and easy-to-clean properties.

⑤ Reusable & RecyclableThe catalyst-loaded metal foam filter screen can be washed with clean water, with no obvious attenuation of catalytic performance after washing, greatly reducing replacement and maintenance costs.

Core Application Functions of the Catalyst

① Air Pollutant Purification: Remove toxic waste gas such as formaldehyde, benzene, TVOC, sulfide and nitrogen oxides in indoor and industrial environments.

② Negative Oxygen Ion Release: Generate negative oxygen ions to improve air quality in enclosed spaces.

③ Broad-Spectrum Sterilization & Antivirus: Kill H1N1 influenza virus, Staphylococcus aureus, Staphylococcus albus, Escherichia coli, etc.

④ Odor Elimination: Decompose cigarette odor, kitchen fume, garbage putrid smell, ammonia odor in restrooms.

⑤ Anti-Fouling & Self-Cleaning: Inhibit oil stains, mold, limescale and alkali rust on walls and equipment surfaces.

⑥ Sewage Treatment: Degrade organic pollutants in water, suitable for simple purification of reclaimed water and industrial wastewater.

Technical Pain Points of Traditional Catalyst Products

The two mainstream catalyst schemes in the industry currently have obvious performance defects:

① Direct Spraying of Catalyst PowderMix catalyst powder with solvent and spray directly on walls or equipment surfaces.Defects: Poor adhesion leads to easy peeling of powder; solvent wraps nano particles to shield catalytic active sites, drastically reducing degradation and sterilization efficiency.

② Composite Filter Screen with Honeycomb / Ordinary Foam SubstrateCoat catalyst on honeycomb ceramic or common foam carriers followed by high-temperature curing.Defects: Limited specific surface area of the substrate results in low catalyst loading capacity and weak coating adhesion. Powder peeling easily occurs under long-term airflow scouring, causing continuous decline of purification effect during long-term equipment operation.

New Technology of In-situ Composite Catalyst Based on Metal Foam

① Technical Innovation Logic

Adopt high-throughput metal foam as the substrate and in-situ growth process of nano catalyst particles to replace traditional brushing and spraying processes, fundamentally solving the problems of coating peeling and insufficient catalyst loading.

Inherent advantages of metal foam substrate:

● Porosity over 98%, 3D fully interconnected open-pore structure with extremely low air flow resistance;

● Ultra-high specific surface area to support massive loading of nano catalytic particles;

● High strength and good toughness of metal skeleton, resistant to airflow scouring and repeatedly washable.

② Composite Modification & Upgrading Process

The composite catalyst is modified by doping nitrogen and phosphorus elements to strengthen the interfacial bonding force between nano powder and metal foam substrate. Synergistic effect between metal base and catalytic particles greatly broadens the light response range, realizing stable high-efficiency sterilization and pollutant degradation under visible light without intense ultraviolet light sources.

Actual Test Performance Data (Authoritative Third-Party CNAS Inspection)

① Bactericidal Performance

Sample specification: 10cm×10cm×0.8cm catalyst metal foam filter screen, matched with 3W LED UV light source, sealed 1m³ test chamber.Continuous 24-hour operation for half a year; the sterilization rate of Staphylococcus albus stabilizes at ≥99.90% after 1 hour of action, complying with national Disinfection Technical Specifications.

② Virus Inactivation Performance

120-minute inactivation test on H1N1 influenza virus; the virus sterilization rate of three parallel test samples all exceeds 99.99%, and the virus concentration of test groups is lower than the instrument detection limit, showing excellent inactivation effect.

Applicable Scenarios

① Enclosed Transportation Spaces

High-speed trains, subways, coaches and ship cabins. With dense passenger flow and poor air circulation inside carriages, the product can decompose odors, kill germs and block the spread of respiratory infectious diseases.

② Civil Air Purification Equipment

Core filter components for household air purifiers, central air-conditioning duct filters and fresh air systems, realizing long-term formaldehyde removal, sterilization and deodorization.

③ Industrial Waste Gas Treatment

Treatment of TVOC organic waste gas in factory workshops, printing & coating odor, low-concentration toxic tail gas from chemical industry.

④ Public Health Spaces

Deodorization and sterilization for hospital wards, office buildings, shopping malls, schools, restrooms and garbage stations.

⑤ Water Treatment Equipment

Small sewage purification devices, circulating filtration for landscape water, degradation of organic pollutants in industrial reclaimed water.

Comprehensive Product Advantages

① Long-term stable performance: Designed service life ≥5 years under atmospheric environment, no obvious attenuation of purification performance during long-term operation.

② Low operation & maintenance cost: Regenerable by repeated cleaning with clean water, no frequent filter replacement required.

③ Eco-friendly & sustainable: No secondary pollutants generated by catalytic decomposition, recyclable substrate.

④ Wide compatibility: Low wind resistance, compatible with various ventilation equipment including fresh air systems, air conditioners, industrial waste gas treatment devices and vehicle-mounted equipment.

⑤ Broad-spectrum efficacy: Simultaneously delivers formaldehyde removal, deodorization, sterilization, antivirus and self-cleaning effects.

If you would like to order custom metal foam or porous metal, please call Huayan Intelligent Technology at +8613661985902，Email: 13661985902@163.com