In this work, a thermo-responsive and cross-linked fluoropolymer poly(2,2,2-Trifluoroethyl) methacrylate (PTFEMA) was successfully prepared by reversible addition-fragmentation chain transfer (RAFT) mediated aqueous polymerization with a thermo-responsive diblock poly(dimethylacrylamide-b-N-isopropylacrylamide) (PDMA-b-PNIPAM) that performed a dual function as both a nanoreactor and macro-RAFT ...

Hydrogels have been extensively explored for biomedical applications due to their ability to absorb high water content in its structure, which gives excellent biocompatibility. This work aims at obtaining biocompatible hydrogels with potential for use in increasing the mechanical strength of bone substitutes, or controlled drug release. Poly (N-vinyl-2-pyrrolidone) hydrogels were prepared by fr...

Effects of respirable aerosols of sulfuric acid, ammonium sulfate, sodium sulfite, and ammonium persulfate on lungs of rats are reviewed. The literature regarding interactions between ozone or nitrogen dioxide and acidic aerosols (ammonium sulfate, sulfuric acid) is discussed. An unexpected interaction between nitrogen dioxide and sodium chloride aerosol is also discussed. An attempt is made to...

The Boyland-Sims Oxidation reaction uses an alkaline solution of peroxydisulfate salt to convert arylamines o-aminophenols. long-standing mechanism involves a nucleophilic attack by the amine leading formation arylhydroxylamine-O-sulfonate intermediate, which then rearranges arylamine o-sulfate. on peroxide oxygen has been questioned Marjanović et al. who have proposed nitrenium ion intermediat...

The persulfate-based advanced oxidation processes employing heterogeneous photocatalysts to generate sulfate radicals (SO4•?) from peroxydisulfate ion (PDS, S2O82?) have been extensively investigated remove organic pollutants. In this work, BiOX (X = Cl, Br, and I) were activate PDS enhance the transformation rate of various substances under UV (398 nm) Vis (400–700 radiation. For BiOCl BiOBr, ...

Samples of the composite cellulose with polyaniline (Cel/PAn), in which PAn is doped hydrochloric acid synthesis process, were synthesized under mass ratio Cel : aniline (An) equal 2 1. The was carried out by oxidation ammonium peroxydisulfate (APS) aqueous 0.5 M solutions presence a suspension bleached cellulose. adsorption capacity produced samples Cel/PAn regarding Cr(VI) studied used electr...

The crucial role of manganese(III) species in the oxidative and catalytic reactivity manganese oxides have been widely reported. However, direct activation radical precursors by Mn(III) is still a matter discussion. In this work, ability Mn(III)-bearing oxide (Mn2O3) for peroxydisulfate (PS) peroxymonosulfate (PMS) was evaluated compared using caffeine (CAF) as model pollutant. Complete CAF rem...

Abstract Metal-free porous biochars are popularly utilized as catalysts for peroxydisulfate (PDS) activation. The enhancement effect of PDS activation fabricated by employing both hard template and alkali metal activating agent has not been explored completely. In addition, the role inherent carbon defect in clearly elucidated. Hence, a series carbonaceous were using sole (KCl), (Na 2 S O 3 ) o...