Sulfonated polyimide (SPI)/sulfonated propylsilane graphene oxide (SPSGO) was assessed to be a promising candidate for polymer electrolyte membranes (PEMs). Incorporation of multifunctionalized (-SO3H and -COOH) SPSGO in SPI matrix improved proton conductivity thermal, mechanical, chemical stabilities along with bound water content responsible slow dehydration the membrane matrix. The reported SPSGO/SPI composite PEM designed promote internal self-humidification, water-retention properties,...

Graphene nanomaterials can feature both superb electrical conductivity and unique physical properties such as extreme surface wettability, which are potentially applicable for many purposes including water treatment. Laser-induced graphene (LIG) is an electrically conductive three-dimensional porous carbon material prepared by direct laser writing on various polymers in ambient conditions with a CO2 laser. Low-fouling LIG coatings technology have been reported; however, the mechanical...

Previously, laser-induced graphene (LIG) coated surfaces were shown to resist biofilm growth, although the material was not strongly antibacterial. Here, we show LIG doped with silver nanoparticles (Ag0 or AgNPs) as highly antibacterial surfaces. Starting from AgNO3 polyethersulfone (PES) polymer substrates, between 5-10 nm generated in situ during lasing process and stably embedded fibrous porous structure of a single step. These (Ag@LIG) toxic bacteria via mechanism both Ag+ ion release...

The removal of emerging environmental pollutants in water and wastewater is essential for high drinking quality or discharge to the environment. Electrochemical treatment a promising technology shown degrade undesirable organic compounds metals via oxidation reduction, carbon-based electrodes have been reported. Here, we fabricated robust, porous laser-induced graphene (LIG) electrode on commercial membrane using multilasing technique demonstrated electrochemical iohexol, an iodine contrast...

Laser-induced graphene (LIG) has received great interest as a potential candidate for electronic and sensing applications. In the present study, we report enhanced performance of manganese carbonate-decorated LIG (MnCO3/LIG) composite electrode material employed electrochemical glucose detection. Initially, porous was fabricated by directly lasing poly(ether sulfone) membrane substrate. Then, MnCO3/LIG synthesized via hydrothermal method. Later, immobilized onto glassy carbon surface The...

Laser-induced graphene (LIG) materials have great potential in water treatment applications. Herein, we report the fabrication of a mechanically robust electroconductive LIG membrane with tailored separation properties for ultrafiltration (UF) These membranes are facilely fabricated by directly lasing poly(ether sulfone) (PES) support. Control PES were through nonsolvent-induced phase (NIPS) technique. A major finding was that when UF treated glycerol, porous structure remained almost...

Cross-linked poly(2-acrylamido-2-methyl-propanesulfonic acid) (PMPS)-based cation-exchange membranes (CEMs) were prepared, and the mono-valent selectivity of was significantly improved by a pore-sieving strategy using metal (copper) loading.

Laser-induced graphene (LIG) has recently gained significant attention for its potential application in various fields. Here, we show that the laser ablation of Kevlar fabric, polyimide (PI), and poly(ether)sulfone (PES) substrates results formation a highly porous with different physicochemical features. LIG powder was used as an adsorbent dye removal. The materials obtained from each substrate exhibited macroporous structure demonstrated relatively high efficiency adsorptive removal...

An investigation has been performed into the pervaporation (PV) of water–ethanol azeotrope using sulphonated poly(ethersulphone) (SPES)–polyethyleneimine (PEI) membranes, performance which is compared to SPES membrane. The SPES–PEI membranes showed high selectivity because their alternating electrostatic deposition yields ultrathin, water-selective polyelectrolyte membranes. thermal and mechanical stabilities prepared have investigated DSC, TGA, DMA structural properties by SEM. addition...

Through channels in thin polymer/nanohybrid films have been made by irradiating with high energy swift heavy ions (SHI) followed selective chemical etching of the amorphous zone latent track created SHI during bombardment.

Ion-exchange membranes hybridized with laser-induced graphene (LIG) might lead to functional surface effects such as antifouling, antibacterial, or joule heating effects; however, understanding the change in electrical properties of membrane is essential. Here we studied LIG-modified ion-exchange polymeric using electrochemical impedance spectroscopy (EIS). The conductivity anionic sulfonated poly(ether sulfone) and effective capacitance membrane-electrolyte interface were obtained by...