Results 11 to 20 of about 9,676 (268)

Effect of Spatial Distribution of nZVI on the Corrosion of nZVI Composites and Its Subsequent Cr(VI) Removal from Water [PDF]

Nanomaterials, 2022
There have been many studies on contaminant removal by fresh and aged nanoscale zero-valent iron (nZVI), but the effect of spatial distribution of nZVI on the corrosion behavior of the composite materials and its subsequent Cr(VI) removal remains unclear. In this study, four types of D201-nZVI composites with different nZVI distributions (named D1, D2,
Li, Yixuan, Huang, Shuangqiu, Song, Yaqin, Zhang, Xinfang, Liu, Sijia, Du, Qiong   +5 more
openaire   +4 more sources

A facile method to synthesize nZVI-doped polypyrrole-based carbon nanotube for Ag(i) removal

Nanotechnology Reviews, 2023
The pollution of silver ion (Ag(i)) has become a serious environmental threat and hazard to ecosystem and human health. Thus, the nanoscale zero valent iron (nZVI)-doped polypyrrole-based carbon nanotube (nZVI/CNT) composites were synthesized by a facile
Zhang Wen-Juan, Ding Ye-Zhi, Wang Ya-Xian, Wang You-Liang, Fei Yu-Long, Ran Meng-Yu   +5 more
doaj   +2 more sources

Synthesis of Indonesian kaolin-nZVI (IK-nZVI), evaluation for the removal of Pb(II) from waste streams [PDF]

AIP Conference Proceedings, 2020
Removal of toxic pollutants such as heavy metals from wastewater is of utmost importance in the current century. Heavy metals have severed a big problem in the world. Several tools have been established to mitigate this problem. In this research paper, Indonesian Kaolin-nano zerovalent iron (IK-nZVI) was synthesized as a model adsorbent for Pb(II ...
Krishna, L. S., Soontarapa, K., Kumar, V., Salehie, O., Zuhairi, W. Y. W., Reddy, N. B.   +5 more
openaire   +5 more sources

Interactions between nanoscale zerovalent iron (NZVI) and silver nanoparticles alter the NZVI reactivity in aqueous environments

Chemical Engineering Journal, 2022
The increasing production and broad application of engineered nanoparticles (ENPs) have led to a substantial release of ENPs into natural systems. Despite their different utilization prospects, ENPs such as nanoscale zero-valent iron (NZVI) and silver nanoparticles (AgNPs) have been co-found in aquatic environments.
Deng, J., Yoon, S., Pasturel, M., Bae, S., Hanna, Khalil   +4 more
openaire   +3 more sources

Simultaneous removal of cadmium and nitrate in aqueous media by nanoscale zerovalent iron (nZVI) and Au doped nZVI particles [PDF]

Water Research, 2014
Nanoscale zerovalent iron (nZVI) has demonstrated high efficacy for treating nitrate or cadmium (Cd) contamination, but its efficiency for simultaneous removal of nitrate and Cd has not been investigated. This study evaluated the reactivity of nZVI to the co-contaminants and by-product formation, employed different catalysts to reduce nitrite yield ...
Su, Yiming, Adeleye, Adeyemi S, Huang, Yuxiong, Sun, Xiaoya, Dai, Chaomeng, Zhou, Xuefei, Zhang, Yalei, Keller, Arturo A   +7 more
openaire   +6 more sources

Activation of Persulfate by Nanosized Zero-Valent Iron (NZVI): Mechanisms and Transformation Products of NZVI

Environmental Science & Technology, 2018
The mechanisms involved in the activation of persulfate by nanosized zero-valent iron (NZVI) were elucidated and the NZVI transformation products identified. Two distinct reaction stages, in terms of the kinetics and radical formation mechanism, were found when phenol was oxidized by the persulfate/NZVI system. In the initial stage, lasting 10 min, Fe0(
Cheolyong Kim, Jun-Young Ahn, Tae Yoo Kim, Won Sik Shin, Inseong Hwang   +4 more
openaire   +3 more sources

Pyrogenic temperature affects the particle size of biochar-supported nanoscaled zero valent iron (nZVI) and its silver removal capacity

Chemical Speciation & Bioavailability, 2017
Particle size of nanoscaled zero valent iron (nZVI) in nanocomposites can be affected by support materials. In this work, nZVI was supported by bamboo-derived biochars produced at 450 °C (BBL) and 600 °C (BBH). Total iron (Fe) contents were 14.4 and 11.9%
Shengsen Wang, Mingyue Zhao, Yiting Zhao, Nong Wang, Jing Bai, Ke Feng, Yanxia Zhou, Wangshu Chen, Fangfang Wen, Saisai Wang, Xiaozhi Wang, Jun Wang   +11 more
doaj   +2 more sources

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   +2 more sources

Nano Zero-Valent Iron (nZVI) Encapsulated with ABS (nZVI/(ABS + EC)) for Sustainable Denitrification Performance and Anti-Aggregation

Processes
Aggregation and sharp reactivity decrease are the key problems of using nano zero-valent iron (nZVI) as a potential reaction medium for a permeable reactive barrier (PRB). In this study, nZVI particles encapsulated within an acrylonitrile–butadiene–styrene (ABS) matrix (nZVI/(ABS + EC)) was fabricated, which for the first time successfully ...
Meng, Fanbin, Yang, Yuning, Li, Miao, Zhu, Qizhi, Qin, Bing, Yang, Chunpeng   +5 more
openaire   +2 more sources

Cr(vi) removal performance of activated carbon (CB-AC) and nZVI-modified activated carbon (nZVI@CB-AC) derived from waste cigarette butts in aqueous solutions. [PDF]

RSC Adv
This study presents and compares two highly efficient adsorbents derived from waste cigarette butts for the removal of Cr( vi ) from aqueous solutions using activated carbon (CB-AC) and nZVI ...
Duru T, Duman G, Coşkun Yİ, Aksuner N.
europepmc   +2 more sources