Catalytic Performance of Flexible Polycationic Membrane Derived from Polyacrylonitrile for Advanced Applications

Area of Science:

• Materials Science
• Environmental Chemistry
• Photocatalysis

Background:

• Developing efficient and recyclable photocatalysts is crucial for environmental remediation.
• Polyaniline-based materials offer potential for catalyst support due to their tunable properties.

Purpose of the Study:

• To synthesize and characterize a novel polycationic membrane (PCM) functionalized with phosphomolybdic acid (PMo).
• To evaluate the photocatalytic efficiency and recyclability of the resulting PM-PCM material for methylene blue degradation under visible light.

Main Methods:

• Synthesis of PCM via cyclization of polyacrylonitrile (PAN) and quaternization.
• Functionalization of PCM with PMo via anion exchange to form PM-PCM.
• Photocatalytic degradation of methylene blue under visible light irradiation.

Main Results:

• The PM-PCM photocatalyst achieved 98% methylene blue degradation under visible light.
• The nanofiber membrane morphology enabled efficient catalyst recovery.
• 98% of initial degradation efficiency was retained after five cycles, demonstrating excellent recyclability.

Conclusions:

• PM-PCM represents a novel, highly efficient, and recyclable photocatalyst for environmental applications.
• The material utilizes solar light, offering a cost-effective and sustainable approach to pollution control.
• This work presents a new strategy for catalyst support and functionalized membrane development.