tin(ii)-ion-selective electrode consisting of dibenzo-18-crown-6 (db18c6) as an ionophore inpvc matrix was developed. the influences of membrane composition, selectivity, response time,reversibility and temperature on the electrode performance were investigated. the electrodeshowed a near nernstian response for sn2+ ions over a concentration range from 1.0× 10-6 – 1.0× 10-2 m with a slope of 27...

Membrane technology is the most promising in post-combustion capture compared to absorption, adsorption and cryogenic distillation methods. It an advanced new for recovery of carbon dioxide. has several advantages when other methods due its’ simple process, low cost, lower footprint, sustainable environment energy saving method. The challenge fabrication method polymeric membrane, it depends on...

Tin(II)-ion-selective electrode consisting of dibenzo-18-crown-6 (DB18C6) as an ionophore inPVC matrix was developed. The influences of membrane composition, selectivity, response time,reversibility and temperature on the electrode performance were investigated. The electrodeshowed a near Nernstian response for Sn2+ ions over a concentration range from 1.0× 10-6 – 1.0× 10-2 M with a slope of 27...

Nanocomposite membrane comprising of both organic and inorganic material qualities have become a prime focus for the next generation membranes. Nanocomposite may consist of hard permeable or impermeable inorganic particles, such as zeolites, carbon molecular sieves and, silica and carbon nanotubes, metal oxide blended with continuous polymeric matrix presents an attract...

A mathematical model considering mass and momentum transfer was developed for simulation of ethanol dewatering via pervaporation process. The process involves removal of water from a water/ethanol liquid mixture using a dense polymeric membrane. The model domain was divided into two compartments including feed and membrane. For a description of water transport in ...

Dyes are an essential group of organic pollutants with a long history harming aquatic life and humans. Prior to disposal, polluted dye wastewater must be adequately treated prevent adverse impacts on persons the environment. Although there several techniques for removal, most them share similar drawback: they generate secondary pollution Membrane separation is highlighted in this article becaus...

Blend reverse osmosis membranes were fabricated using polyvinyl chloride (PVC) with cellulose acetate (CA) as polymer blends. Tetrahydrofuran (THF) and N-Methyl-2-pyrrolidone (NMP) were used as solvents. The membrane polymer solution was cast on a coated woven fabric support material. The prepared membranes have been characterized by SEM and mechanical properties. SEM r...

photocatalytic membranes exhibit great potential for water treatment since they combine the filtration and photo degradation in a single unit. although blending photocatalytic nanoparticles into polymeric thin film remains the simplest method to prepare the photocatalytic membrane, the entrapped photocatalyst showed less catalytic activity due to the agglomeration and shielding effects in the p...

the role of polymeric additives such as pvp and peg is studied with respect to the morphology of pes porous layer as a sublayer of nanofiltration composite membranes based on pes/pa. results show that by phase inversionprocess of quaternary systems comprised of four components of polymer/solvent/non-solvent/additive and the diffusion of intertwined polymers some changes occur in membrane morpho...