Chitosan Graphene Oxide Recycling via Acid Dissolution
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Solution Overview
Problem
The high cost of graphene oxide limits its widespread use beyond the semiconductor industry, and there is a need for cost-effective methods to recycle and reuse graphene oxide materials for producing resilient structures and compounds.
Innovation Solution
A method involving maximizing solution-to-solid contact of chitosan/graphene oxide objects in an acidic solution, followed by storage in a desired physical form, such as solution, powder, or evaporation, to reclaim and reuse the material for producing highly resilient filtration membranes and other applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If graphene oxide is used for large-scale projects and general use, then the application scope and productivity are improved, but the cost increases significantly
Solution Approach 1:
The patent implements a recycling process where used chitosan/graphene oxide composite materials are recovered from filtration membranes, dissolved in acidic solution to separate components, and the graphene oxide is recovered and reused. This closed-loop system reduces the need for continuous purchase of new graphene oxide, directly addressing the cost barrier for large-scale applications
2Strength
If pure graphene is produced for mass production, then the strength and performance are improved, but the production cost remains high
Solution Approach 1:
The patent utilizes chitosan/graphene oxide composite materials instead of pure graphene. The composite maintains high strength properties while being more cost-effective for mass production. The graphene oxide component provides the necessary mechanical strength, while the chitosan matrix enables easier processing and large-scale manufacturing
Solution Approach 2:
The patent employs graphene oxide, which is cheaper and more readily available than pure graphene, despite having slightly different properties. The recycling process extends the usable life of the material, making it economically viable for large-scale applications where cost-effectiveness is prioritized over maximum performance
3Reliability
If chitosan/graphene oxide composite is produced in correct proportions, then the filtration performance and reliability are improved, but the production cost increases
Solution Approach 1:
The recycling process recovers graphene oxide from used composite materials and allows it to be reused in new composite production. This reduces the overall production cost of chitosan/graphene oxide composites while maintaining the correct proportions and filtration performance required for reliable operation
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
This method reduces the cost of graphene oxide usage by enabling the recycling and reuse of chitosan/graphene oxide compounds, making them suitable for large-scale projects and diverse applications, including water filtration and public works.
Implementation Method 1
immersing and dissolving the chitosan/graphene oxide object in an acidic solution
Implementation Method 2
evaporated to create objects
Data Source
AI summary
A method of creating storing and using recycled graphene oxide materials to create highly resilient objects having desirable qualities of graphene.