A core–shell structure of polyaniline coated protonic titanate nanobelt composites for both Cr(vi) and humic acid removal

Abstract

The current methods for chromium and natural organic matter decontamination from wastewater present limitations, such as high cost, poor reproducibility, and detrimental environmental effects as well as by secondary waste.

Chemically Modified CaO/Fe3O4 Nanocomposite by Sodium Dodecyl Sulfate for Cr(III) Removal from Water

“…where q t is the amount of adsorbed ion per gram of adsorbent at time t, and k 1 is the constant adsorption rate of the pseudofirst-order kinetic model. The linear form of the pseudosecond-order kinetic model is given by [40,41]:…”

Facile Assembly of Polyaniline/Graphene Oxide Composite Hydrogels as Adsorbent for Cr(VI) Removal

“…After reduction, the Cr(III) attached to the hydrogel may be chelated on the nitrogen‐containing groups. The removal of Cr(VI) was a combination of chemical adsorption and reduction Cr(VI) to Cr(III) . In addition, the regeneration ability of PANi/GO composite hydrogel was studied.…”

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

“…There are many synthesis methods for fabricating CP/metal oxides nanocomposites but mostly, two synthetic strategies have been employed to prepare the hybrids of CPs coupled with metal oxides: i) preparing nanostructured metal oxides in the presence of CPs by chemical reactions, and ii) polymerizing monomer in the presence of magnetic metal oxides. In both strategies, different approaches have been involved, including hydrothermal method [113][114][115], solvothermal method [116], calcination of M(OH) x (M: metal) nanoparticles [117], self-assembly method [118], thermal treatments, solution phase growth [119], electrodeposition [120], photopolymerization [121] and electropolymerization. For example, Table 4 shows the synthesis and applications of selected conducting polymer based nanocomposites with metal oxides.…”

“…TiO 2 nanoparticles surrounded in micelles with aniline can be considered as a soft template to form PANI. In PANI coated protonic titanate nanobelt composites, titanate nanobelt precursors were synthesized through an alkaline hydrothermal treatment process, and PANI was coated as shell by self-assembly approach [118].…”