Results 71 to 80 of about 20,688 (263)

Synthesis of iron-magnetite nanocomposites for hexavalent chromium sorption

Results in Chemistry, 2023
Owing to multiple industrial applications of chromium compounds, developing chronic and highly water soluble chromium adsorption methods has gained attention.
Nejat Redwan, Dereje Tsegaye, Buzuayehu Abebe   +2 more
doaj   +1 more source

Surface coating with Ca(OH)2 for improvement of the transport of nanoscale zero-valent iron (nZVI) in porous media [PDF]

, 2013
A novel thermal deposition method was developed to coat Ca(OH)2 on the surface of nanoscale zero-valent iron (nZVI). The nZVI particles with the Ca(OH)2 coating layer, nZVI/Ca(OH)2, had a clear core-shell structure based on the transmission electron ...
Li, XY, Wei, CJ
core   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Enhanced nitrate reduction by HPMC-stabilized nanoscale zero-valent iron (H-NZVI): Synthesis, characterization and reaction kinetics

Desalination and Water Treatment
Nano zero-valent iron (NZVI) was successfully stabilized by using hydroxypropyl methyl cellulose (HPMC). Systematic characterization observations (including XRD, TEM, FTIR, and VSM), as well as settling performance, illustrated that, compared to bare ...
Da Ma, Xusheng Li, Huian Zou, Yi Qian, Mengqi Li, Wenchuan Xu   +5 more
doaj   +1 more source

Hexavalent chromium reduction in manganese-rich soils by ZVI nanoparticles: the influence of natural organic matter and manganese oxides [PDF]

, 2017
Hexavalent chromium reduction by nano Zero-Valent Iron (nZVI) has been proved fast and efficient, mainly due to nanoparticles large specific surface area and high chemical reactivity. In this work the influence of natural organic matter and manganese
Di Palma, L., Verdone, N., Vilardi, G.
core  

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras, Ahmed K. Hassan, Dahiru Lawal, Mohammed Awad, Raed A. Al‐Juboori, Muhammad Irfan, Muhammad Rafiq, Qusay F. Alsalhy   +7 more
wiley   +1 more source

Synthesis and Characterisation of Nano Zero-Valent Iron for the Reduction and Immobilisation of Cr(VI) in Water Resources [PDF]

Kemija u Industriji
Nano zero-valent iron (nZVI) was synthesised through the chemical reduction of Fe(III) ions using iron(III) chloride and sodium borohydride solutions under atmospheric conditions.
Martin Stojchevski, Stefan Kuvendziev, Zoran Bozinovski, Petre Makreski, Perica Paunović, Mirko Marinkovski, Kiril Lisichkov   +6 more
doaj   +1 more source

A Radiotracer study of the adsorption behaviour of aqueous Ba2+ ions on nonoparticles of zero-valent iron [PDF]

, 2007
Cataloged from PDF version of article.Recently, iron nanoparticles are increasingly being tested as adsorbents for various types of organic and inorganic pollutants.
Celebi, O., Erten, H. N., Shahwan, T., Uzum, C.   +3 more
core   +1 more source

Reduction of Hexavalent Chromium by Nano Zero-Valent Iron

Quality of Life (Banja Luka) - APEIRON
Hexavalent chromium is a toxic form of chromium that has significant health and environmental implications. Reducing hexavalent chromium to trivalent chromium is a crucial step in immobilizing and removing Cr(VI) from water resources. Nano zero-valent iron (nZVI) as an electron-donating agent was used for Cr(VI) reduction in aqueous solution.
Kiril Lisichkov, Mirko Marinkovski, Zoran Bozinovski, Stefan Kuvendziev, Martin Stojchevski   +4 more
openaire   +1 more source

Entropy‐Driven Design of Stable High‐Performance Sodium‐Ion Battery Cathodes

EcoEnergy, EarlyView.
This review explores high‐entropy strategies for advanced sodium‐ion battery cathodes, focusing on LTMOs and PBAs. It details how entropy engineering mitigates challenges: phase transitions, interface degradation, and air instability in LTMOs; vacancy defects and crystalline water in PBAs.
Feng Zhan, Chuzhang Hong, Yue Luo, Jinhua Sun, Hua Fan, Zhiming Feng, Jie Yang, Xinhua Liu, Rui Tan   +8 more
wiley   +1 more source