Results 211 to 220 of about 31,045 (265)

Dechlorination of Pentachlorophenol by Zero Valent Iron and Modified Zero Valent Irons

Environmental Science & Technology, 2000
The disappearance of pentachlorophenol (PCP) from aqueous solutions in contact with zero valent metals (ZVMs) may be due to dechlorination reactions or sorption to ZVM-related surfaces.
Young-Hun Kim, Elizabeth R. Carraway
openaire   +1 more source

Characterization of zero-valent iron nanoparticles

Advances in Colloid and Interface Science, 2006
The iron nanoparticle technology has received considerable attention for its potential applications in groundwater treatment and site remediation. Recent studies have demonstrated the efficacy of zero-valent iron nanoparticles for the transformation of halogenated organic contaminants and heavy metals.
Yuan-Pang, Sun, Xiao-qin, Li, Jiasheng, Cao, Wei-xian, Zhang, H Paul, Wang   +4 more
openaire   +2 more sources

Zero-valent iron nanoparticles preparation

Materials Research Bulletin, 2012
Abstract Zero-valent iron nanoparticles were synthesized by hydrogenating [Fe[N(Si(CH 3 ) 3 ) 2 ] 2 ] at room temperature and a pressure of 3 atm. To monitor the reaction, a stainless steel pressure reactor lined with PTFE and mechanically stirred was designed.
S. Oropeza, M. Corea, C. Gómez-Yáñez, J.J. Cruz-Rivera, M.E. Navarro-Clemente   +4 more
openaire   +1 more source

Carbon Disulfide Removal by Zero Valent Iron

Environmental Science & Technology, 2007
The use of zero valent iron (Fe0) for the remediation of water contaminated with carbon disulfide (CS2), a common groundwater contaminant, has been evaluated in this study. Mineralogical analysis of Fe0 filings and polished Fe0 cross-sections indicates that iron sulfide is formed due to the removal of carbon disulfide from solution by Fe0. The kinetics
Kalin, R., McGeough, K.L., Myles, P.
openaire   +3 more sources

Comparison of aerobic atrazine degradation with zero valent aluminum and zero valent iron

Journal of Hazardous Materials, 2018
This study systematically compared the degradation of atrazine (ATR) with aerobic zero-valent aluminum (ZVAl/Air) and zero-valent iron (ZVI/Air) systems. By comparing the ATR degradation curves and rate in the ZVAl/Air and the ZVI/Air systems, a significant induction period was observed in the ZVAl/Air system, and the pseudo-first-order rate constant ...
Wenjuan Shen, Hongliang Kang, Zhihui Ai
openaire   +2 more sources

Reductive denitrification using zero‐valent iron and bimetallic iron

Environmental Technology, 2009
A study of reductive denitrification of nitrate was conducted. Microscale zero-valent iron (ZVI) and palladium-coated iron (Pd/Fe) were used in the reduction of nitrate with variable pH. The solution pH was controlled by an auto controlling system instead of chemical buffers.
Jeong-Hak, Choi, Won Sik, Shinb, Sang June, Choi, Young-Hun, Kim   +3 more
openaire   +2 more sources

Modeling arsenic removal by nanoscale zero-valent iron

Environmental Monitoring and Assessment, 2020
Arsenic removal by nanoscale zero-valent iron (NZVI) was modeled using the USGS geochemical program PHREEQC. The Dzombak and Morel adsorption model was used. The adsorption of As(V) onto NZVI was assumed to happen because of the hydrous ferric oxide (Hfo) which was the surface oxide for the model.
Umma S. Rashid, Bernhardt Saini-Eidukat, Achintya N. Bezbaruah   +2 more
openaire   +2 more sources

Microbial reduction of perchlorate with zero-valent iron

Water Research, 2005
Microbial reduction of perchlorate in the presence of zero-valent iron was examined in both batch and column reactors to assess the potential of iron as the electron donor for biological perchlorate reduction process. Iron-supported mixed cultures completely removed 65 mg/L of perchlorate in batch reactors in 8 days.
Ahjeong, Son, Jaewoo, Lee, Pei C, Chiu, Byung J, Kim, Daniel K, Cha   +4 more
openaire   +2 more sources

Anodic coulometry of zero-valent iron nanoparticles

Journal of Electroanalytical Chemistry, 2021
Abstract Nanoscale zero-valent iron (nZVI) particles are currently used for environmental remediation due to their ion sequester ability. This trait plus their magnetic behavior, and biocompatibility, makes them a promising alternative for heavy metal poisoning treatment, development of MRI dye, and drug delivery loads, among others.
Annelis O. Sánchez-Álvarez, Jeffrey E. Dick, Eduardo Larios, Carlos R. Cabrera   +3 more
openaire   +1 more source

Zero‐valent bimetallic iron/copper catalyzed SET‐LRP: A dual activation by zero‐valent iron

Journal of Polymer Science Part A: Polymer Chemistry, 2011
AbstractIn this work, bimetallic zero‐valent metal (Fe(0) powder and Cu(0) powder) was used to mediate the single electron transfer‐living radical polymerization (SET‐LRP) of methyl methacrylate at 25 °C in dimethyl sulfoxide. Different feed ratios of [Fe(0)]0/[Cu(0)]0 (0/1.5, 0.5/1, 0.75/0.75, 1/0.5, and 1.3/0.2) were explored. With the increase of Fe(
Lili Zhou, Zhengbiao Zhang, Wenxiang Wang, Zhenping Cheng, Nianchen Zhou, Jian Zhu, Wei Zhang, Xiulin Zhu   +7 more
openaire   +1 more source