1,2-Dichloroethane (1,2-DCA) is a chlorinated solvent classified as a probable human carcinogen. Due to its extensive use in industrial applications, widespread contamination, and recalcitrance toward abiotic dechlorination, 1,2-DCA remains a challenging compound for the remediation community. Over the past decade, nano zerovalent iron (nZVI) has been efficiently used to treat many of the chlor...

Chlorinated organic solvents (COSs) are a significant threat to human beings. In this study, nanoscale bimetallic Ni/Fe particles were synthesized from the reaction of sodium borohydride (NaBH4) with reduction Ni2+ and Fe2+ in an aqueous solution. The zero-valent iron (nZVI) Ni-nZVI characterized by SEM (scanning electron microscopy), XRD (X-ray diffractometer), Brunauer–Emmett–Teller (BET), tr...

Abstract Nanoscale zero-valent iron-doped carbonized zeolitic imidazolate framework-8 (nZVI/CZIF-8) was prepared by carbonation of ferric nitrate and ZIF-8 at 800 °C used as an adsorbent to remove methylene blue (MB) from water. The synthesized nZVI/CZIF-8 has a specific surface area 806.9 m2/g, pore volume 0.86 cm 3 /g nZVI content 1.35%, respectively. Both the CZIF-8 have identical functional...

Nanoscale zero-valent iron (nZVI) has become a new and ecofriendly adsorbent material with promising applications. Herein, hydrotalcite-supported nanoscale (nZVI@H) is synthesized for the first time used testing removal of methylene blue (MB) in an aqueous solution. The successful fabrication nZVI@H characterized by SEM, BET, XRD, FTIR zeta-potential analyses. results showed that 99.6% MB remov...

Abstract Biochar supported nanoscale zero-valent iron (NZVI/BC), prepared commonly by liquid reduction using sodium borohydride (NaBH 4 ), exhibits better performance for contaminants than bare NZVI. The reducing ability was attributed to attachment of (NZVI) on biochar (BC) surface or into the interior pores BC particles due observations scanning electron microscopy (SEM) and plan transmission...

Nano zero valent iron particles (nZVI) are popular the last few years because of the numerous applications in remediation of a wide range of pollutants in contaminated soils and aquifers. The nZVI particles can be 10 1000 times more reactive than granular or micro-scale ZVI particles due to the small particle size, large specific surface area and high reactivity. An alternative green synthesis ...

In view of the increasingly prominent heavy metal pollution problem in water, D201 resin-supported polyethylene glycol–modified nanoscale zero-valent iron (PEG-nZVI/D201) was fabricated to remove Cr(VI) wastewater. PEG-nZVI/D201 can overcome agglomeration and oxidation drawbacks nZVI effectively, improve removal efficiency Cr(VI). Its rate 33.6% higher than that bare when dosage 1.0 g·L−1, conc...

The advanced oxidation process based on persulfate has a broad application prospect in the remediation of organic pollutants. As an effective, low-cost and environmentally friendly material, nano-zero-valent iron (nZVI) can effectively activate (nZVI/PS) to generate strongly oxidizing sulfate radical for removing pollutants environment. In this review, we first clarify activation pathway nZVI a...

The structures of nanoscale zero-valent iron (nZVI) particles evolving during reactions, and the reactions are influenced by the evolved structures. To understand the removal process in detail, it is important to investigate the relationships between the reactions and structural evolution. Using high resolution-transmission electron microscopy (HR-TEM), typical evolved structures (sheet copreci...