Air Purification System Using Colloidal Gold Nanoparticles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current air purification technologies are inadequate for effectively and cost-efficiently removing fine particulate matter (PM2.5) and carbon monoxide (CO) from indoor and vehicle environments during wildfires, especially considering power consumption and maintenance costs, and the need for portable, battery-powered solutions.
Innovation Solution
A process involving a series of vessels with oil filters, alkaline and acidic fluids, and colloidal gold nanoparticles to scrub polluted air, transforming CO into CO2 and removing PM2.5, utilizing oil bath filters, alkaline slurry, and catalytically active colloidal gold suspensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional air cleaning technologies are used, then air purification is achieved, but cost of purchase, operation, and maintenance increases
Solution Approach 1:
The invention changes the chemical parameters of the scrubbing solution by using alkaline conditions to transform CO into CO2, and employs catalytically active colloidal gold to enhance the removal efficiency of harmful gases. This chemical parameter modification achieves effective air purification while using low-cost, readily available materials instead of expensive conventional filtration systems
Solution Approach 2:
The invention uses inexpensive chemical reagents (alkaline solutions and catalytic colloidal gold) that can be easily replenished compared to expensive conventional air purifiers. The chemical solutions are low-cost consumables that replace costly electronic filtration systems, reducing both purchase and maintenance expenses
2Productivity
If electrical power is used for air purification, then air cleaning performance is improved, but dependence on electrical power increases
Solution Approach 1:
The invention employs passive chemical reactions that occur automatically when polluted air contacts the alkaline scrubbing solution and catalytic colloidal gold. The system self-regenerates oxygen through the chemical transformation of CO without requiring external electrical power, making it independent of power grids that may fail during wildfires
Solution Approach 2:
The invention replaces active mechanical/electrical air purification systems with passive chemical reaction systems. Instead of using powered fans, filters, and electronic components, the system uses spontaneous chemical reactions between pollutants and alkaline solutions, eliminating dependence on electrical infrastructure
3Object-affected harmful factors
If windows are closed to prevent smoke entry, then indoor air quality is protected, but indoor temperature increases
Solution Approach 1:
The invention converts the harmful trapped hot air inside closed rooms into purified, oxygenated air through chemical reactions. The alkaline scrubbing solution absorbs CO and transforms it into CO2, while catalytic colloidal gold further purifies the air and generates oxygen, turning the stagnant hot air into fresh, breathable air without needing to open windows
Solution Approach 2:
The invention uses catalytically active colloidal gold as a strong oxidizing agent that accelerates the conversion of CO to CO2 and generates oxygen through oxidation reactions. This chemical oxidation process actively purifies the air inside closed rooms, maintaining air quality without requiring ventilation that would allow hot external air entry
4Adaptability or versatility
If portable battery-powered solutions are used, then portability and accessibility are improved, but power consumption must be minimized
Solution Approach 1:
The invention is entirely self-powered through exothermic chemical reactions between pollutants and alkaline solutions, plus catalytic oxidation by colloidal gold. These reactions generate heat and oxygen without consuming battery power, making the portable unit truly energy-independent while maintaining high adaptability for use in vehicles, homes, and personal protective equipment
Solution Approach 2:
The invention serves multiple functions simultaneously: it purifies air by removing PM2.5 and CO, generates oxygen through chemical reactions, and provides cooling through the evaporative effect of the alkaline solution. This multi-functionality in a single portable device maximizes versatility while eliminating the need for separate powered systems
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 process efficiently removes PM2.5 and CO from air, producing purified, oxygenated, and humidified air, suitable for breathing during wildfires, with a focus on low power consumption and long-lasting chemical reactants, suitable for both indoor and vehicle use.
Implementation Method 1
forcing contaminated air into an oil filter
Implementation Method 2
directing air that exits the oil filter into an alkaline fluid
Implementation Method 3
directing air that exits the alkaline solution into a catalytically active fluid that contains colloidal gold nano particles (AuNPs) dispersed in an alkaline aqueous solution
Implementation Method 4
transforming CO into CO2
Implementation Method 5
directing air that exits the catalytic active fluid into an acidic solution that neutralizes alkali
Data Source
AI summary
A method of purifying air polluted by smoke and fumes, such as from wildfires and other hazard, may deploy a series of fluid filled vessels that act as filters to trap and/or neutralize components that would foul an aqueous suspension of gold nanoparticles that is effective in converting toxic carbon monoxide to carbon dioxide. Non-toxic fluids may be used. As the gold nanoparticles are effective in a basic solution, the solution may contain a visible pH indicator or an apparatus that deploys the method may continuously monitor the pH thereof.