Zobrazeno 1 - 10
of 23 234
pro vyhledávání: '"cr(vi)"'
Publikováno v:
BMC Chemistry, Vol 18, Iss 1, Pp 1-19 (2024)
Abstract Elevated Arsenic and Chromium levels in surface and ground waters are a significant health concern in several parts of the world. Chitosan quinoxaline Schiff base (CsQ) and cross-linked chitosan quinoxaline Schiff base (CsQG) were prepared t
Externí odkaz:
https://doaj.org/article/a57728dddf264cc29993eef8ca9e72eb
Publikováno v:
Water Science and Engineering, Vol 17, Iss 3, Pp 249-256 (2024)
Nano zero-valent iron (nZVI) and sulfidation-modified nZVI (S-nZVI) were synthesized and used to remove hexavalent chromium (Cr(VI)) in wastewater. Characterization of the products showed that the sulfidation process significantly changed the morphol
Externí odkaz:
https://doaj.org/article/d51f9cb6b8a644be9c91d097c4a9bb20
Akademický článek
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Autor:
Hamideh Hajloo, Hadis Bashiri
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract In this investigation, we explored the kinetics of Cr(VI) reduction to Cr(III) on carbon nanotube decorated with palladium (Pd-CNTs) nanocatalyst, using formic acid as the reducing agent. This study has been bone utilizing kinetic Monte Carl
Externí odkaz:
https://doaj.org/article/51560d20cb5743409fba3f01177eca69
Autor:
Fazel Zahakifar, Maryam Dashtinejad, Hamid Sepehrian, Mohammad Samadfam, Javad Fasihi, Ali Yadollahi
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Granular activated carbon has been modified by ammonium persulfate as a new adsorbent for Cr(VI) adsorption from aqueous solutions. The adsorbent was characterized by nitrogen adsorption–desorption isotherm data and infrared spectroscopy.
Externí odkaz:
https://doaj.org/article/d5e9bed1d68348f58614998efac6be3a
Autor:
Ayyob M. Bakry, Waleed M. Alamier, A. B. Abdallah, Yasmeen G. Abou El-Reash, M. Samy El-Shall, Fathi S. Awad
Publikováno v:
Applied Water Science, Vol 14, Iss 8, Pp 1-17 (2024)
Abstract This study describes a novel adsorbent with a multidentate ligand that was facilely fabricated by covalently bonding 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole on graphene oxide (AHMT-PRGO). The AHMT-PRGO nano-adsorbent was used for the e
Externí odkaz:
https://doaj.org/article/8201357369be4a1bb5ad36b3465c2839
Autor:
Shijie Xie
Publikováno v:
Green Chemistry Letters and Reviews, Vol 17, Iss 1 (2024)
Cr (VI) compounds find wide uses in the industrial sector, such as wood preservation, tanning, chrome plating, and anticorrosive agents. Several kinds of both natural and industrial factors can lead to Cr (VI) contamination in wastewater. Human expos
Externí odkaz:
https://doaj.org/article/754fad4d312b4078bba73d922015b976
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 287, Iss , Pp 117272- (2024)
This study investigated the enhancing effects of soil treatment with ethylene diamine tetraacetic acid (EDTA) and oxalic acid (OA) on the remediation of Cr(VI) contaminated soil by Datura stramonium L. A greenhouse pot experiment was conducted, where
Externí odkaz:
https://doaj.org/article/e3aec6f3bd2543cc91f3319c7c7bd881
Publikováno v:
Medžiagotyra (2024)
In this paper, calcium silicate hydrate (C-S-H) was synthesized by hydrothermal method using CaO and quartz sand as raw materials. The solidification effect of Cr(Ⅵ) in C-S-H was studied using XRD, FTIR, and SEM. The leaching amount of Cr(Ⅵ) afte
Externí odkaz:
https://doaj.org/article/4346ce5859cd4cc6b07ede73afeb6045
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 286, Iss , Pp 117181- (2024)
Hexavalent chromium (Cr(VI)) has been identified as a Class I human carcinogen, but its carcinogenic mechanism is currently unclear. There is still a lack of understanding of its associations with early pulmonary inflammatory damages. Inflammation is
Externí odkaz:
https://doaj.org/article/abe2069a05c74e6388069b78cbf995e4