Iron-based materials for simultaneous removal of heavy metal(loid)s and emerging organic contaminants from the aquatic environment: Recent advances and perspectives.

The existence of heavy metals and emerging organic contaminants in wastewater produces serious toxic residues to the environment. Developing cheap and efficient materials to remove these persistent pollutants is crucial. Iron-based materials are cost-effective and environmentally friendly catalysts, and their applications in the environmental field deserve attention.

Degradation of norfloxacin by MOF-derived lamellar carbon nanocomposites based on microwave-driven Fenton reaction: Improved Fe(III)/Fe(II) cycle.

In this paper, a new type of iron-based magnetic nanoparticle material embedding mesoporous carbon (Fe@C) was prepared by simple pyrolysis of a MIL-101-Fe precursor and employed in the microwave-catalyzed degradation of norfloxacin (NOR) with the presence of HO. Characterization results showed successful anchoring of Fe nanoparticles in the carbon matrix. Under optimal treatment conditions (Calcination temperature = 700 °C, HO dosage = 40 mM, MW power = 500 W, NOR dosage = 50 mg L and initial pH = 4), the degradation efficiency of NOR reached 95.

Critical review of perovskite-based materials in advanced oxidation system for wastewater treatment: Design, applications and mechanisms.

Perovskite has been widely concerned in the field of modern environmental catalysis due to its low price, high stability, excellent catalytic activity, diverse structure and strong conversion adaptability. In recent years, people have been working on the coupling of perovskite catalysts and advanced oxidation processes (AOPs) on the removal of organic pollutants from wastewater. In this review, we classified perovskites of different designs and summarized the application and basic reaction mechanisms of each perovskite in different AOPs.

Enhanced removal of Cr(VI) from aqueous solution by stabilized nanoscale zero valent iron and copper bimetal intercalated montmorillonite.

Batch experiments were conducted to study the Cr(VI) removal by nanoscale zero valent iron and copper intercalated montmorillonite (MMT-nFe/Cu) nanocomposite. MMT-nFe/Cu was characterized using SEM, TEM, XRD, FTIR, N adsorption-desorption isotherms and XPS. The results demonstrated that highly dispersed nanoscale Fe/Cu (nFe/Cu) were successfully introduced into the montmorillonite (MMT) layers.

Cu-Fe embedded cross-linked 3D hydrogel for enhanced reductive removal of Cr(VI): Characterization, performance, and mechanisms.

Porous hydrogel, as a high-efficiency adsorbent for heavy metals, suffers the drawbacks of the use of expensive and toxic reagents during the process of preparation, further limiting its application ranges. Besides, the heavy metals couldn't be transformed into nontoxic species, which leads to the environmental pollution risk. Herein, a three-dimensionally (3D) structured Cu-Fe embedded cross-linked cellulose hydrogel (nFeCu-CH) was innovatively fabricated by a novel self-assembly and in-situ reduction method, which exhibited exceptionally enhanced adsorption-reduction property towards Cr(VI) wastewater.

Highly efficient microwave-assisted Fenton degradation bisphenol A using iron oxide modified double perovskite intercalated montmorillonite composite nanomaterial as catalyst.

In this work, perovskite intercalated montmorillonite (MMT) composite catalyst loaded by different mass fraction iron oxide, xFeO/LaCuCoO-MMT (x was the mass fraction of FeO and x = 0.02, 0.04, 0.