نتایج جستجو برای: stable nano zero valent

تعداد نتایج: 454809  

2009
Sumathi Suresh

Metal systems have been extensively used for the abiotic remediation of recalcitrant pollutants. Zero-valent metals such as iron (Fe 0 ), zinc (Zn 0 ), magnesium (Mg 0 ) have been used for the reductive dechlorination of organic compounds Nanoscale zero-valent iron particles have been reported to be very effective for the transformation and detoxification of a wide variety of contaminants, such...

Journal: :Chemical communications 2015
Benjamin Peerless Theo Keane Anthony J H M Meijer Peter Portius

First examples of coordinatively unsaturated, homoleptic azido complexes of low-valent group 14 elements are reported. A simple strategy uses low-valent precursors, ionic azide transfer reagents and bulky cations to obtain salt-like compounds containing E(N3)3(-) of Ge(II)/Sn(II) which are fully characterised, including XRD. Remarkably, these compounds are kinetically stable at r.t. and isolabl...

Immobilizing of zero-valent iron in mono- and bi-metallic systems on the bentonite clay surface as new nanocatalyst were synthesized and used to degrade model acidic dyes from aqueous media. The Fourier-transform infrared spectroscopy, scanning electron microscopy-energy dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller analysis were ...

Journal: :Inorganics (Basel) 2023

Supported nano zero-valent iron is receiving great attention nowadays due to its effectiveness in treating heavy metal pollutants. Therefore, this study aimed investigate the of granitic residual soil-supported (Gr-nZVI) for removal metals Pb2+, Cu2+, Co2+, Cd2+ Ni2+ and Zn2+ mixture solutions under different experimental conditions batch equilibrium tests. In study, Gr-nZVI was successfully sy...

Journal: :Sustainability 2023

Predicting the heavy metals adsorption performance from contaminated water is a major environment-associated topic, demanding information on different machine learning and artificial intelligence techniques. In this research, nano zero-valent aluminum (nZVAl) was tested to eliminate Cu(II) ions aqueous solutions, modeling predicting removal efficiency (R%) using factors. The prepared nZVAl char...

Journal: :Bioresources and Bioprocessing 2023

Abstract In the twenty-first century, water contamination with pharmaceutical residues is becoming a global phenomenon and threat. Antibiotic antibiotic resistance genes (ARGs) are recognized as new emerging pollutants because they can negatively affect aquatic ecosystems human health, thereby posing complex environmental problem. These nano-adsorbents of next generation remove these at low con...

Journal: :international journal of environmental research 0
m. saeedi school of civil engineering, iran university of science and technology, narmak, 16846, tehran, iran. 2department of civil engineering, the university of british columbia, 6250 applied science lane, vancouver, british columbia v6t 1z4, canada l.y. li department of civil engineering, the university of british columbia, 6250 applied science lane, vancouver, british columbia v6t 1z4, canada a. moradi gharehtapeh post graduate, department of civil engineering, university of massachusetts dartmouth, north dartmouth, ma 02747-2300, usa

hexavalent chromium is mobile and hazardous in the environment. electrokinetic remediationof chromium (iv)-contaminated soils is intended either to remove or to reduce cr (vi) to cr (iii). this studyexamines the effectiveness of utilizing edta and acetic acid solutions as alternative electrolytes in theelectrokinetic (ek) process, with coupled nano-scale zero-valent iron (nzvi) as a barrier for...

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