Behaviour of Nanomaterials in the Environment: A Study of Interaction between Humic Acids and Fullerene C60

Kļaviņš, Māris; Ansone, Linda; Zicmanis, Andris

doi:10.2478/v10161-010-0007-7

Cited by 5 publications

(3 citation statements)

References 32 publications

(42 reference statements)

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“…Adsorption of HA on buckminsterfullerene of different origin is driven by hydrophobic interactions characterized by high adsorption constants depending on the C60 and HA nature. Reported values are on the same order observed for HA and polycyclic aromatic hydrocarbons [10,11]. The hydrophobic interaction between fullerene C60 and HA is weakened at low pH, resulting in a decrease of the binding constants.…”

Section: Hs-adsorbed Nanomaterialssupporting

confidence: 62%

Effect of Humic Substances and Bioorganic Substrates from Urban Wastes in Nanostructured Materials Applications and Synthesis

Magnacca

Laurenti

González

2015

SpringerBriefs in Molecular Science

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Humic substances were widely studied for preparing materials to be used for adsorption, photocatalysis and so on. Their parent soluble bio-organic materials (SBO) have potentially similar applications which have to be evaluated. The main advantage of the use of SBO substances concerns their low cost, but they are appealing also for the development of a strategy of recycle and reuse of wastes which needs to be followed worldwide. The application of SBO in materials synthesis is promizing, since they can be used as synthesis intermediates but also as active phases for developing adsorbing and/or photoactive materials usable for environmental applications.

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Section: Hs-adsorbed Nanomaterialssupporting

confidence: 62%

Effect of Humic Substances and Bioorganic Substrates from Urban Wastes in Nanostructured Materials Applications and Synthesis

Magnacca

Laurenti

González

2015

SpringerBriefs in Molecular Science

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“…However, the decrease in nC 60 BisPCBM concentrations for both treatments was not significant. The stabilization of nC 60 by DOC is explained by sorption of nC 60 to DOC in solution, 32 whereas more extensive sedimentation and/or possible glass wall sorption results in lower fullerene concentrations in the treatments without DOC. The DOC source used was a commercial humic acid which is one of the most hydrophobic humic acids that is currently available.…”

mentioning

confidence: 99%

Colloidal stability of (functionalised) fullerenes in the presence of dissolved organic carbon and electrolytes

Haftka

Bäuerlein

Emke

et al. 2015

Environ. Sci.: Nano

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Colloidal stability of (functionalised) fullerenes in the presence of dissolved organic carbon and electrolytes Haftka, J.J.H.; Bäuerlein, P.S.; Emke, E.; Lammertse, N.; Belokhovstova, D.; Hilvering, B; de Voogt, W.P.; ter Laak, T.L. Published in:Environmental Science: Nano DOI:10.1039/c4en00206gLink to publication Citation for published version (APA):Haftka, J. J. H., Bäuerlein, P. S., Emke, E., Lammertse, N., Belokhovstova, D., Hilvering, B., ... ter Laak, T. L. (2015). Colloidal stability of (functionalised) fullerenes in the presence of dissolved organic carbon and electrolytes. Environmental Science: Nano, 2(3), 280-287. DOI: 10.1039/c4en00206g General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. The suspended concentrations of the fullerenes were stabilised by low concentrations of DOC (2 mg C per L) in the presence of NaCl. However, sedimentation of DOC occurred at low concentrations of CaCl 2 (>~2 mM) which caused removal of (functionalised) fullerenes. The results show that (functionalised) fullerenes can be rapidly removed in natural aqueous systems in the presence of low concentrations of DOC and multivalent inorganic electrolytes.

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“…Reference HAs were purchased from Sigma-Aldrich (Aldrich HA) and Carl Roth (Roth HA). Based on literature data regarding the C contents, 833 mg of Aldrich HA [39] and 1309 mg of Roth HA [40] were dissolved in 0.25 L 0.1 M NaOH and made up to 1 L with high purity doubly deionised (DDI) water (Milli-Q ® Element, Millipore) to yield stock solutions of 500 mg L −1 . For the preparation of reduced phosphorus standards (P in an oxidation state of + 1 and + 3) as precursors for phosphine (PH 3 ) generation, phosphinic acid (H 3 PO 2 ) and phosphonic acid (H 3 PO 3 ) were purchased from Merck and AppliChem (both 50% wt wt −1 ), respectively.…”

Section: Reagentsmentioning

confidence: 99%

Overestimation of geogenic arsenic in landfill leachate: interference of humic and phosphinic acid in a commercial test kit

Brück

Glatthaar

Weigand

2014

International Journal of Environmental Analytical Chemistry

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Large-scale groundwater contamination by arsenic (As) requires economical yet reliable analytical procedures to monitor the quality of well water and the effluent of As elimination processes. The silver diethyldithiocarbamate (AgDDTC) method provides the basis of a series of colourimetric tests used as a compromise between semi-quantitative field-test kits and expensive instrumental analytics. This study aimed at understanding the significant As overestimation by the AgDDTC method observed in landfill leachate samples. Results of the AgDDTC test were up to threefold the levels obtained by reference analyses. Overestimation broadly agreed with the time course of chemical oxygen demand and total phosphorus in the leachate. We hypothesised that the interference was caused by reduced P species or humic acid (HA), respectively. To test this, As-AgDDTC determinations from As standards were conducted with phosphonic (H 3 PO 3 ) and phosphinic acid (H 3 PO 2 ) as well as two commercial HA as matrix components. While H 3 PO 3 showed no effect, H 3 PO 2 in concentrations of 0.06 to 28 mg P L −1 yielded As recoveries of up to 130%. This was probably due to the evolution of phosphine (PH 3 ) as suggested by the absorption spectra recorded after reacting pure PH 3 with AgDDTC in pyridine. The HA in concentrations of 0.6-320 mg dissolved organic carbon L −1 gave As recoveries of up to 600%, possibly due to a chromophoric reaction of volatile HA digestion products formed during the reduction step. Significant As overestimation in the presence of the above-named compounds may require pre-oxidation of the samples. To recognise interference effects, the acquisition of full absorbance spectra may be recommendable in lieu of fixed wavelength analyses.

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Behaviour of Nanomaterials in the Environment: A Study of Interaction between Humic Acids and Fullerene C60

Cited by 5 publications

References 32 publications

Effect of Humic Substances and Bioorganic Substrates from Urban Wastes in Nanostructured Materials Applications and Synthesis

Effect of Humic Substances and Bioorganic Substrates from Urban Wastes in Nanostructured Materials Applications and Synthesis

Colloidal stability of (functionalised) fullerenes in the presence of dissolved organic carbon and electrolytes

Overestimation of geogenic arsenic in landfill leachate: interference of humic and phosphinic acid in a commercial test kit

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