Comprehensive Isolation of Natural Organic Matter from Water for Spectral Characterizations and Reactivity Testing

Leenheer, Jerry A.; Croué, Jean-Philippe; Benjamin, Mark M.; Korshin, Gregory V.; Hwang, Cordelia J.; Bruchet, A.; Aiken, George R.

doi:10.1021/bk-2000-0761.ch005

Cited by 107 publications

(93 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to limited amount of OM sample, TR-DLS experiments and replicates were only conducted on these solution conditions (i.e., laborious procedures and large volumes of water are required to isolate various organic fractions of different structural properties). 23 Similarly to the previous experimental condition, citrate- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 initial slope of the D h vs time plot up to the point at which D h reaches the relative hydrodynamic diameter of 1.38D ho , as previously described. 22,24 However, since this aggregation rate is inversely proportional to the initial concentration of nanoparticles (N o ), 14 citrate-coated AgNPs concentration in solution (i.e., 1 ppm) was maintained fixed throughout this study for conducting a consistent comparison between all the experimental conditions.…”

Section: Determination Of Citrate-coated Agnps Aggregation Kinetics Imentioning

confidence: 99%

Citrate-Coated Silver Nanoparticles Interactions with Effluent Organic Matter: Influence of Capping Agent and Solution Conditions

Gutierrez

Aubry²,

Cornejo

et al. 2015

Langmuir

View full text Add to dashboard Cite

Just Accepted "Just Accepted" manuscripts have been peer-reviewed and accepted for publication. They are posted online prior to technical editing, formatting for publication and author proofing. The American Chemical Society provides "Just Accepted" as a free service to the research community to expedite the dissemination of scientific material as soon as possible after acceptance. "Just Accepted" manuscripts appear in full in PDF format accompanied by an HTML abstract. "Just Accepted" manuscripts have been fully peer reviewed, but should not be considered the official version of record. They are accessible to all readers and citable by the Digital Object Identifier (DOI®). "Just Accepted" is an optional service offered to authors. Therefore, the "Just Accepted" Web site may not include all articles that will be published in the journal. After a manuscript is technically edited and formatted, it will be removed from the "Just Accepted" Web site and published as an ASAP article. Note that technical editing may introduce minor changes to the manuscript text and/or graphics which could affect content, and all legal disclaimers and ethical guidelines that apply to the journal pertain. ACS cannot be held responsible for errors or consequences arising from the use of information contained in these "Just Accepted" manuscripts. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 2 Abstract: Fate and transport studies of silver nanoparticles (AgNPs) discharged from urban wastewaters containing effluent organic matter (EfOM) into natural waters represent a key knowledge gap. In this study, EfOM interfacial interactions with AgNPs and their aggregation kinetics were investigated by atomic force microscopy (AFM) and time-resolved dynamic light scattering (TR-DLS), respectively. Two well-characterized EfOM isolates, i.e., wastewater humic (WW humic) and wastewater colloids (WW colloids, a complex mixture of polysaccharides-proteins-lipids), and a River humic isolate of different characteristics were selected. Citrate-coated AgNPs were selected as representative capped-AgNPs. Citrate-coated AgNPs showed a considerable stability in Na + solutions. However, Ca 2+ ions induced aggregation by cation bridging between carboxyl groups on citrate. Although the presence of River humic increased the stability of citrate-coated AgNPs in Na + solutions due to electrosteric effects, they aggregated in WW humic-containing solutions, indicating the importance of humics characteristics during interactions. Ca 2+ ions increased citrate-coated AgNPs aggregation rates in both humic solutions, suggesting cation bridging between carboxyl groups on their structures as a dominant interacting mechanism. Aggregation of citrate-coated AgNPs in WW colloids solutions was significantly faster than those in both humic solutions. Control experiments in urea solution indicated hydr...

show abstract

Section: Determination Of Citrate-coated Agnps Aggregation Kinetics Imentioning

confidence: 99%

Citrate-Coated Silver Nanoparticles Interactions with Effluent Organic Matter: Influence of Capping Agent and Solution Conditions

Gutierrez

Aubry²,

Cornejo

et al. 2015

Langmuir

View full text Add to dashboard Cite

show abstract

“…The NOM isolates used in this investigation were collected from two surface water sources (Gartempe River and Brittany River, France) and then isolated following the protocol previously described [15]. Both fractions have been rigorously characterized in earlier studies [7,16].…”

Section: Origin and Characteristics Of Nom Isolatesmentioning

confidence: 99%

Natural organic matter interactions with polyamide and polysulfone membranes: Formation of conditioning film

Gutierrez

Aubry²,

Linares

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

Please cite this article as: L. Gutierrez, C. Aubry, R. Valladares, J.-P. Croue, Natural organic matter interactions with polyamide and polysulfone membranes: formation of conditioning film, Colloids and Surfaces A: Physicochemical and Engineering Aspects (2015), http://dx.doi.org/10. 1016/j.colsurfa.2015.03.031 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

“…This fractionation approach was improved into a preparative fractionation method in which DOM fractions can be quantitatively isolated as desalted, freezedried preparations and subsequently characterized (38). This preparative fractionation method led to the isolation of bacterial cell-wall peptidoglycan colloids that constitute significant percentages of DOC in most surface water samples.…”

Section: Fractionation Isolation and Characterizationmentioning

confidence: 99%

Peer Reviewed: Characterizing Aquatic Dissolved Organic Matter

Leenheer¹,

Croué²

2003

Environ. Sci. Technol.

Self Cite

1,161

575

View full text Add to dashboard Cite

Comprehensive Isolation of Natural Organic Matter from Water for Spectral Characterizations and Reactivity Testing

Cited by 107 publications

References 0 publications

Citrate-Coated Silver Nanoparticles Interactions with Effluent Organic Matter: Influence of Capping Agent and Solution Conditions

Citrate-Coated Silver Nanoparticles Interactions with Effluent Organic Matter: Influence of Capping Agent and Solution Conditions

Natural organic matter interactions with polyamide and polysulfone membranes: Formation of conditioning film

Peer Reviewed: Characterizing Aquatic Dissolved Organic Matter

Contact Info

Product

Resources

About