Deposition kinetics of zinc oxide nanoparticles on natural organic matter coated silica surfaces

Jiang, Xujia; Tong, Meiping; Li, Haoyang; Yang, Kun

doi:10.1016/j.jcis.2010.06.063

Cited by 69 publications

(63 citation statements)

References 57 publications

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“…ZnO NPs stock suspension (100 mg L À1 ) was prepared by suspending nanopowders (20 ± 5 nm in diameter, purity greater than 99.5%, Zhejiang Hongsheng Material Technology Co., China) in Milli-Q water (Q-Gard1, Millipore Inc., MA) and sonicated for 30 min with a sonicating probe (Ningboxinzhi Biotechnology Ltd., China) [24]. NPs suspensions (5 mg L À1 ) were made by diluting stock suspension into salt solutions (NaCl or CaCl 2 ) at pH 8.0 ± 0.1 (adjusted with 0.1 M NaOH).…”

Section: Zno Nps Suspension Preparationmentioning

confidence: 99%

“…The detailed characterization of ZnO NPs has been described in our previously published study [24] and also provided in the Supplementary Information. The corresponding zeta potentials and particle sizes of ZnO NPs suspension (5 mg L À1 ) both in the presence and absence of NOM were measured in NaCl and CaCl 2 solutions with Zetasizer Nano ZS90 (Malvern Instruments, UK).…”

Section: Zno Nps Suspension Preparationmentioning

confidence: 99%

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Influence of natural organic matter on the transport and deposition of zinc oxide nanoparticles in saturated porous media

Jiang

Tong

Kim

2012

Journal of Colloid and Interface Science

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Section: Zno Nps Suspension Preparationmentioning

confidence: 99%

Section: Zno Nps Suspension Preparationmentioning

confidence: 99%

Influence of natural organic matter on the transport and deposition of zinc oxide nanoparticles in saturated porous media

Jiang

Tong

Kim

2012

Journal of Colloid and Interface Science

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“…Zinc oxide nanoparticles (ZnO-NPs) are used in electronic and optical applications as sensors, semiconductors, and lasers (Aruoja et al 2009, Petosa et al 2012, Jiang et al 2010, Ramani et al 2012. ZnO nanostructures are widely applied in cosmetics, and serve as pigments, UV fi lters in sunscreens, and dermatological products (Aruoja et al 2009, Zhou and Keller 2010, Jiang et al 2012a).…”

Section: Presence Of Nanomaterials In the Environmentmentioning

confidence: 99%

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Krzyżewska¹,

Kyzioł-Komosińska²,

Rosik-Dulewska³

et al. 2016

Archives of Environmental Protection

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Abstract:The aim of this paper is to present characteristics, toxicity and environmental behavior of nanoparticles (NPs) (silver, copper, gold, zinc oxide, titanium dioxide, iron oxide) that most frequently occur in consumer products. In addition, NPs are addressed as the new aquatic environmental pollutant of the 21 st century. NPs are adsorbed onto particles in the aquatic systems (clay minerals, fulvic and humic acids), or they can adsorb environmental pollutants (heavy metal ions, organic compounds). Nanosilver (nAg) is released from consumer products into the aquatic environment. It can threaten aquatic organisms with high toxicity. Interestingly, copper nanoparticles (Cu-NPs) demonstrate higher toxicity to bacteria and aquatic microorganisms than those of nanosilver nAg. Their small size and reactivity can cause penetration into the tissues and interfere with the metabolic systems of living organisms and bacterial biogeochemical cycles. The behavior of NPs is not fully recognized. Nevertheless, it is known that NPs can agglomerate, bind with ions (chlorides, sulphates, phosphates) or organic compounds. They can also be bound or immobilized by slurry. The NPs behavior depends on process conditions, i.e. pH, ionic strength, temperature and presence of other chemical compounds. It is unknown how NPs behave in the aquatic environment. Therefore, the research on this problem should be carried out under different process conditions. As for the toxicity, it is important to understand where the differences in the research results come from. As NPs have an impact on not only aquatic organisms but also human health and life, it is necessary to recognize their toxic doses and know standards/regulations that determine the permissible concentrations of NPs in the environment.Unauthenticated Download Date | 5/12/18 7:36 AM

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“…Eq. (C.1) (Hogg , 1966) was used to calculate the van der Waals attraction, where A is the combined Hamaker constant for the C 60 water silica system (4.71 Â 10 À21 J) (Qu et al, 2012), a is the radius of C 60 particles (Table C.3), h is the separation distance between the C 60 particle and silica sensor surface, and k is the characteristic wavelength of interaction (usually assumed to be 100 nm) (Jiang et al, 2010).…”

Section: Appendix C Dlvo Interaction Energy Calculation Detailsmentioning

confidence: 99%

“…(C.3) was used to calculate the inverse Debye length for the electrolyte system (Jiang et al, 2010), where e is the elementary charge, n j is the number concentration of ions in the bulk solution, z j is ion valence, k is the Boltzmann constant, and T is the absolute temperature.…”

Section: Appendix C Dlvo Interaction Energy Calculation Detailsmentioning

confidence: 99%

The role of attached phase soil and sediment organic matter physicochemical properties on fullerene (nC60) attachment

McNew

LeBoeuf

2015

Chemosphere

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Attached phase soil and sediment organic matter is ubiquitous in the subsurface environment, with a tendency to strongly sorb contaminants, and therefore it may play an important role in contaminant transport. In this study, the deposition of C60 nanoparticles onto attached phase Harpeth Humic Acid and Harpeth Fulvic Acid (HHA and HFA) is explored by using a quartz crystal microbalance with dissipation monitoring and systematically varying thermal energy. By comparing the C60 attachment onto HHA and HFA surfaces to that of bare silica and DLVO predictions, we find that the HHA and HFA layers hinder attachment at low temperatures, while HHA enhances attachment at higher temperatures. Based on thermal characterization of the HHA and HFA layers compared to the corresponding attachment trends, the attachment efficiency is strongly correlated with hydration of the layer. Possible mechanisms explaining this phenomenon include water-assisted disruption of polar SOM contacts and hydration-induced swelling of the AP-SOM matrix. Since humic substances typically dominate subsurface organic matter, these results may prove crucial to understanding the complex interactions of engineered nanomaterials in both the natural and engineered environment.

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Deposition kinetics of zinc oxide nanoparticles on natural organic matter coated silica surfaces

Cited by 69 publications

References 57 publications

Influence of natural organic matter on the transport and deposition of zinc oxide nanoparticles in saturated porous media

Influence of natural organic matter on the transport and deposition of zinc oxide nanoparticles in saturated porous media

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

The role of attached phase soil and sediment organic matter physicochemical properties on fullerene (nC60) attachment

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