Themed collection Water treatment

The use of pillared interlayered clays (PILCs) as heterogenous catalysts in wastewater treatment technologies, particularly advanced oxidation processes (AOPs), is gaining popularity for the treatment of refractory wastewater effluents.

The review paper discusses the surface modification and fabrication of electrospun nanofibers for wastewater treatment.

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.

Because of their persistency and toxicity, dyes and heavy metal ions discharged to water bodies have become a worrisome issue.

Fenton processes have gained much attention in the field of wastewater treatment during recent years.

In order to control the negative impacts of dyes on living organisms, several techniques and methodologies have been developed for their removal from industry effluents and other water bodies.

This review summarizes the recent progress in the design, fabrication, and application of visible light-responsive photocatalysts.

Surface-bulk modification of zinc oxide for efficient photocatalysis.

This review describes the application of conjugated polymer (polyaniline, polypyrrole, and polythiophene) based composites in wastewater purification.

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.

With a rapidly growing population, development of new materials, techniques and devices which can provide safe potable water continues to be one of the major research emphases of the scientific community.

Illustration of the classification of Chemical treatment and Water recycling technologies.

In this work, UV-activated persulphate treatment (UV/PDS and UV/PMS) was found to be an effective method for HA removal.

New functional CS/GA/RGO/Pd composite hydrogels are prepared via a self-assembly process, demonstrating potential applications in catalysis as well as composite materials.

In this paper, we report a layer-by-layer approach for the preparation of a concentric recyclable composite (Co_xNi_1−xFe₂O₄/SiO₂/TiO₂; x = 0.9) designed for wastewater treatment.

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

Novel bio-magnetic membrane capsules were prepared by a simple two-step titration-gel cross-linking method using a polyvinyl alcohol and sodium alginate matrix to control the disintegration of phytogenic magnetic nanoparticles in aqueous media.

ZnO/TiO₂ anchored on a reduced graphene oxide (rGO) ternary nanocomposite heterojunction was synthesized via the multi-step method including hydrothermal, solvothermal and sol–gel methods.

Biochar is a kind of low cost and renewable adsorbents which can be used to remove dye from wastewater. The mechanism between MB and CMB involved cation exchange, electrostatic interaction, hydrogen bonding, physical function and others.

CuFe₂O₄ was reduced for activation of hydrogen peroxide and the reduced CuFe₂O₄ showed a relatively higher catalytic activity.

Fabrication of Fe₃O₄ from EAF dust using a hydrothermal method and Fe₃O₄@TiO₂ using a sol–gel method for the photocatalytic degradation of steel industry wastewater.

A facile surfactant free wet-precipitation process was employed to prepare hydroxyapatite (HAp) nanoparticles.

Hierarchical core–shell manganese oxide nanocomposites (Fe₃O₄@MnO₂ and Fe₂O₃@MnO₂) are synthesized via a hydrothermal process and showed good adsorption capability for wide applications.

An insight into the influence of cation on photo-Fenton activity of visible light active magnetic nanospinel ferrites having general formula MFe₂O₄ (M = Cu, Zn, Ni and Co).

Comparative removal of COD and color from real textile wastewater using three different electrolytic advanced oxidation processes, namely, electro-Fenton (EF), peroxicoagulation (PC) and pH-regulated peroxicoagulation (PC-pH) processes were analyzed in the present study.

Nickel oxide (NiO) nanostructures have been prepared via a thermal decomposition method.

The improvement in flux recovery from ∼42% in pristine PES membranes to >75% in PES/HMO-2 mixed matrix membranes indicated the greater anti-fouling properties of the PES/HMO-2 membrane in treating synthetic wastewater.

A MnO₂-NTs/graphene composite is demonstrated as a promising cathode catalyst to replace Pt in MFC for power generation and wastewater treatment.

CeO₂ nanoparticles with various morphologies show high catalytic potentials for the degradation of Congo red in aqueous solution.