Abstract Osmotic energy, existing between solutions with different concentrations, is a sustainable and ecofriendly resource for solving energy issues. However, current membrane-based osmotic conversion technologies focus on electricity generation from an “open” system by directly mixing salt (NaCl) at room temperature. For the integrated utilization of thermal higher power output performance, ...

Membrane separation is known as an efficient technique for the oily wastewater treatment. Therefore, in the present study, sulfonated poly (ether ether ketone) (SPEEK) was introduced into the polysulfone (PSF) solution in order to enhance the hydrophilicity and the membrane structure for the oil–water separation. The hollow fiber membranes were fabricated via a phase-inversion process. The memb...

Microbial fuel cells (MFC) are an emerging technology for wastewater treatment that utilizes the metabolism of microorganisms to generate electricity from organic matter present in water directly. The principle MFC is same as hydrogen cell and has three main components (i.e., anode, cathode, proton exchange membrane). membrane separates anode cathode chambers keeps anaerobic aerobic conditions ...

This article relates to the synthesis, characterization and dielectric measurements of solid polymer electrolytes, derived from ionic interaction sulfonated poly(ether ether ketone) (sPEEK) a Brønsted acidic liquid (1-methylimidazolium tetrafluoroborate, [Hmim][BF4]) for electrochemical applications. The efficiency was examined by incorporating different amounts (IL) with matrices having three ...

Characterization of the molar mass distribution (MMD) poly (ether ether ketone) (PEEK) is very troublesome due to insolubility PEEK in common solvents. The solubility may be substantially improved after its sulfonation. Sulfonated (SPEEK) was prepared by sulfonation with 98% concentrated H2SO4 at room temperature. presence sulfonic acid group (-SO3H) matrix confirmed nuclear magnetic resonance ...

Sulfonated poly(ether ether ketone) (SPEEK) membranes were thermally treated at temperatures between 120 and 160 degrees C. Water uptake measured at different relative humidity values or by full immersion in water between 25 and 145 degrees C was found to depend very strongly on previous thermal treatment and casting solvent. Water-uptake coefficient values as low as 10-15 even upon immersion i...