Electrochemical Removal of Water Pollutants Using Laser Synthesized Graphene Adsorbents Derived from Polyimides
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초록
내용
Among the various environmental problems, water pollution is closely related to human life. In the group of assorted substances that cause water pollution, dyes such as MB used in laboratories, pharmaceuticals and textile industries have toxicity and carcinogenicity, and are not decomposed naturally, which can cause side effects in humans. Existing water treatment filters have pore structures such as activated carbon or polymer membranes. In this study, S-doped polyimide (S-PI) film with pore structure was prepared using thermally induced phase separation, and an adsorption filter was fabricated directly on porous S-PI scaffolds via laser scribing technique. The filter generated H2O2 when receiving a voltage, which enables electrochemical decomposition of MB. Including the porous structure, pH, time, and the amount of H2O2 generated that could affect adsorption performance were investigated. The strategies presented here could potentially lead to solutions for removing emerging contaminants from wastewater.