Topics

Enhanced reactivity of iron monosulfide towards reductive transformation of tris(2-chloroethyl) phosphate in the presence of cetyltrimethylammonium bromide.

07:00 EST 2nd March 2020 | BioPortfolio

Summary of "Enhanced reactivity of iron monosulfide towards reductive transformation of tris(2-chloroethyl) phosphate in the presence of cetyltrimethylammonium bromide."

Tris(2-chloroethyl) phosphate (TCEP) is a widely found emerging pollutant due to its heavy usage as a flame retardant. It is chemically stable and is very difficult to removal from water. The goal of this study was to explore whether iron monosulfide (FeS) can be used for reductive transformation of TCEP as FeS can react with a variety of halogenated organic contaminants. We used batch reactor systems to quantify the transformation reactions in the absence and presence of cetyltrimethylammonium bromide (CTAB, a common surfactant in aquatic environments). The results showed that, in the presence of CTAB (100 mg L), FeS exhibited much greater reactivity towards TCEP as 93% of initial TCEP had been transformed within 14 d of reaction. In the absence of CTAB, it required 710 d of reaction to achieve 97.3% reduction of initial TCEP. The enhancement of CTAB on TCEP transformation rate could be due to the facts that CTAB could stabilize FeS suspension against aggregation, protect FeS from rapid oxidation, and increase surface adsorption of TCEP on FeS. XPS analysis showed that both Fe(II) and S(-II) species on the FeS surface were involved in the reductive transformation of TCEP. Analysis of transformation products revealed that TCEP was reductively transformed into bis(2-chloroethyl) phosphate (BCEP), Cl and CH. These findings showed that FeS may play an important role in the reductive transformation of TCEP when TCEP coexisting with CTAB in aquatic environments.

Affiliation

Journal Details

This article was published in the following journal.

Name: Environmental pollution (Barking, Essex : 1987)
ISSN: 1873-6424
Pages: 114282

Links

DeepDyve research library

PubMed Articles [8847 Associated PubMed Articles listed on BioPortfolio]

Anoxic degradation of chlorpyrifos by zerovalent monometallic and bimetallic particles in solution.

The degradation of highly toxic and persistent chlorinated organic compounds by zerovalent metals (ZVMs) has received considerable attention for in situ groundwater remediation. Due to its abundance a...

Iron Hydride Radical Reductive Alkylation of Unactivated Alkenes.

Iron-catalyzed hydrogen atom transfer-mediated intermolecular C-C coupling reactions between alkenes and tosylhydrazones, followed by in situ cleavage of the tosylhydrazine intermediates using EtN, ar...

Non-oxidative methane coupling over silica versus silica-supported iron(II) single sites.

Non-oxidative CH 4 coupling is promoted by silica with incorporated iron sites, but the role of these sites and their speciation under reaction conditions are poorly understood. Here, silica-supported...

Transformation of Fe-P complexes in bioreactors and P recovery from sludge: Investigation by XANES spectroscopy.

The transformation of Fe-P complexes in bioreactors can be important for phosphorus (P) recovery from sludge. In this research, X-ray absorption near edge structure analysis was conducted to quantify ...

Palladium/iron nanoparticles stimulate tetrabromobisphenol a microbial reductive debromination and further mineralization in sediment.

Tetrabromobisphenol A (TBBPA) has aroused serious pollution in surface sediment. To date, whether and how iron-based nanoparticles could stimulate TBBPA in situ anaerobic biodegradation in sediment re...

Clinical Trials [3226 Associated Clinical Trials listed on BioPortfolio]

Study of Oral Palifosfamide Tris in Solid Tumors

The study of maximum tolerated dose and safety of oral palifosfamide tris capsules in advanced, refractory, solid tumors

Iron Fish for Dominican Republic (DR) Infants

This study evaluates the feasibility of cooking with an iron ingot, Lucky Iron Fish™ (LIF), and evaluate the natural history of hemoglobins and iron status among infants of families usin...

Iron Fish in Dominican Republic (DR) Children

The objective of the study is to assess the acceptability, feasibility, and barriers to Lucky Iron Fish™ (LIF) utilization among families with young children in a Latin American communit...

Iron and Pollen Allergy in Women

Iron deficiency and anemia are clearly associated with the onset of allergy and allergic diseases, whereas an improved iron status seems to prevent the onset of allergy in humans. Iron-def...

Determination of a Dose-dependent Effect of GOS on Iron Absorption, and Addition of Vitamin C

Iron deficiency is still the most common and widespread nutritional disorder in the world according to WHO. In a recent iron absorption study in adult women with low iron stores in our la...

Medical and Biotech [MESH] Definitions

Iron or iron compounds used in foods or as food. Dietary iron is important in oxygen transport and the synthesis of the iron-porphyrin proteins hemoglobin, myoglobin, cytochromes, and cytochrome oxidase. Insufficient amounts of dietary iron can lead to iron-deficiency anemia.

A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its rate of degradation is increased in the presence of IRON.

A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its RNA binding ability and its aconitate hydrolase activity are dependent upon availability of IRON.

Anemia characterized by decreased or absent iron stores, low serum iron concentration, low transferrin saturation, and low hemoglobin concentration or hematocrit value. The erythrocytes are hypochromic and microcytic and the iron binding capacity is increased.

An excessive accumulation of iron in the body due to a greater than normal absorption of iron from the gastrointestinal tract or from parenteral injection. This may arise from idiopathic hemochromatosis, excessive iron intake, chronic alcoholism, certain types of refractory anemia, or transfusional hemosiderosis. (From Churchill's Illustrated Medical Dictionary, 1989)

Quick Search


DeepDyve research library

Searches Linking to this Article