Themed collection Adsorption and degradation of pollutants

The recent developments on iron-based adsorbents such as iron oxyhydroxides nanoparticles, zero-valent iron, bimetallic oxides, and iron oxyhydroxide-doped composite materials are fully discussed in this review.

The present review covers the regeneration capacity and adsorption efficiency of different adsorbents for the treatment of industrial dyes to control water pollution.

Due to their large specific surface area and abundant active surficial sites, MXenes can adsorb various environmental pollutants.

This review introduces briefly the use of LDH materials as adsorbents and catalysts for the decontamination of dyes wastewater.

Water pollution caused by heavy metal ions is becoming a serious threat to human and aquatic lives day by day.

Pictorial representation of all possible dye degradation reaction in UV light initiated indirect dye degradation mechanism. This mechanism is practically more important over visible light initiated direct mechanism.

ZIF-8 was used to perform photocatalytic degradation of methylene blue, a typical organic dye.

A Fe₃ triangle has been designed to serve as a filter for the elimination of cationic dye pollutants.

We herein have developed a mild approach for the fabrication of glauconite clay (G)-modified chitosan (CS) nanocomposites by the combination of a simple blending and crosslinking method.

PVP–Fe₃O₄ NPs synthesized with no organic solvents, low toxicity reactants and low temperature/energy requirements could remove Cd, Cr, Ni, Pb efficiently in the different synthetic water media under environmentally relevant conditions.

To explore an efficient photocatalyst for NO pollution, a direct Z-scheme photocatalytic system is successfully fabricated by coupling Bi₂WO₆ with NH₂-UiO-66 via a simple hydrothermal synthesis technique.

New two-component supramolecular hydrogels were prepared via a self-assembly process, demonstrating potential applications in adsorption and catalysis as well as sensor materials.

The Fe₃O₄ magnetic polypyrrole–graphene (PPy–GO) has a Langmuir adsorption capacities of 400.0 mg g⁻¹ for Hg(II). And it has a favorable saturation magnetization of 19.0 emu g⁻¹, easily separated from solutions via additional exterior magnets.

MOF PCN-222 exhibits excellent adsorption/removal capacities for numerous anionic and cationic dyes individually and together in solutions.

Comparative study of the photocatalytic performance for the degradation of different by ZnIn₂S₄ based on the adsorption of dyes, the active species and the degradation pathway.

Graphene-based two-dimensional materials have been explored in a variety of applications, including the treatment of heavy-metal-rich water/wastewater.

The current work demonstrates an innovative approach to develop nanocellulose based membranes via in situ TEMPO functionalization of the thin functional layer of cellulose nanocrystals (CNC_BE) to enhance the metal ion adsorption capacity.

We have reported herein the preparation of a pure cobalt ferrite (CoFe₂O₄) nanostructure, as an efficient nano-adsorbent, via a template-free hydrothermal and post thermal conversion route.

This study is based on the usage of a composite of zinc sulfide nanoparticles with activated carbon (ZnS-NPs-AC) for the adsorption of methylene blue (MB) from aqueous solutions.

The present study deals with the simultaneous removal of chrysoidine G (CG), rhodamine B (RB) and disulfine blue (DB) by Ni doped ferric oxyhydroxide FeO(OH) nanowires on activated carbon (Ni doped FeO(OH)-NWs–AC).

Novel adsorbents, magnetite nanoparticles modified with pectin shell and silica/pectin double shell, were fabricated and tested for single dye and dye mixture adsorption from water samples.

FESEM images of the prepared ZnS:Cu-NPs-AC.

GO-iron oxide and RGO-iron oxide composites were synthesized and used for pollutant removal.

In this paper, adsorption methods are used for the removal of Rose Bengal from aqueous solutions.