Characterization of materials released into water from paint containing nano-SiO2

Al-Kattan, Ahmed; Wichser, Adrian; Vonbank, R.; Brunner, Samuel; Ulrich, Andrea; Zuin, Stefano; Arroyo, Yadira; Golanski, Luana; Nowack, Bernd

doi:10.1016/j.chemosphere.2014.02.005

Cited by 78 publications

(41 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it has to be noted that in this study a conventional paint containing only pigment TiO 2 was investigated and not a nano-paint. However, Al-Kattan et al found similar matrix-bound particles in leaching studies with paints containing nano-TiO 2 and nano-SiO 2 (Al- Kattan et al, 2013Kattan et al, , 2014Kattan et al, , 2015. Kaegi et al found a similar result when investigating Ag ENPs in aged paint, with some evidence from EDX analysis to suggest the formation/release of Ag 2 S. Depending on the nature of the TiO 2 ENPs (synthesis process, annealing), the "TiO 2 ENP film" can show super hydrophilic properties (Thongsuwan et al, 2011) that are susceptible to increase the surface degradation rate.…”

Section: Paints and Coatingsmentioning

confidence: 89%

Review of nanomaterial aging and transformations through the life cycle of nano-enhanced products

Mitrano

Motellier

Clavaguera

et al. 2015

Environment International

Self Cite

351

243

View full text Add to dashboard Cite

In the context of assessing potential risks of engineered nanoparticles (ENPs), life cycle thinking can represent a holistic view on the impacts of ENPs through the entire value chain of nano-enhanced products from production, through use, and finally to disposal. Exposure to ENPs in consumer or environmental settings may either be to the original, pristine ENPs, or more likely, to ENPs that have been incorporated into products, released, aged and transformed. Here, key product-use related aging and transformation processes affecting ENPs are reviewed. The focus is on processes resulting in ENP release and on the transformation(s) the released particles undergo in the use and disposal phases of its product life cycle for several nanomaterials (Ag, ZnO, TiO2, carbon nanotubes, CeO2, SiO2 etc.). These include photochemical transformations, oxidation and reduction, dissolution, precipitation, adsorption and desorption, combustion, abrasion and biotransformation, among other biogeochemical processes. To date, few studies have tried to establish what changes the ENPs undergo when they are incorporated into, and released from, products. As a result there is major uncertainty as to the state of many ENPs following their release because much of current testing on pristine ENPs may not be fully relevant for risk assessment purposes. The goal of this present review is therefore to use knowledge on the life cycle of nano-products to derive possible transformations common ENPs in nano-products may undergo based on how these products will be used by the consumer and eventually discarded. By determining specific gaps in knowledge of the ENP transformation process, this approach should prove useful in narrowing the number of physical experiments that need to be conducted and illuminate where more focused effort can be placed.

show abstract

Section: Paints and Coatingsmentioning

confidence: 89%

Review of nanomaterial aging and transformations through the life cycle of nano-enhanced products

Mitrano

Motellier

Clavaguera

et al. 2015

Environment International

Self Cite

351

243

View full text Add to dashboard Cite

show abstract

“…what transformation occur during the use phase of the nano-application and what fraction of the original ENM has been transformed. For instance, dissolution of nano-SiO 2 (Al- Kattan et al, 2015) or sulfidation of nano-Ag (Kaegi et al, 2010) are important transformation processes in construction materials. Even if ENMs are released in an untransformed state, they may not be nano-relevant because the ENMs are often embedded in matrix fragments (Froggett et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

et al. 2015

Self Cite

View full text Add to dashboard Cite

“…Studies addressing ENM release from paints have chosen various experimental setups to assess the release. One of the common approaches is weathering using light and/or water, to simulate outdoor conditions (Al-Kattan et al, 2014;Kaegi et al, 2010;Olabarrieta et al, 2012;Al-Kattan et al, 2013;Kaegi et al, 2008;Zuin et al, 2014). Kaegi et al (2010) conducted an experiment to quantify the release of AgNPs from outdoor facades, using a facade panel painted with AgNP containing paint.…”

Section: Pc9a: Coatings and Paintsmentioning

confidence: 99%

Release of nanomaterials from solid nanocomposites and consumer exposure assessment – a forward-looking review

Mackevica

Hansen

2016

Nanotoxicology

View full text Add to dashboard Cite

The European chemical legislation requires manufacturers and importers of chemicals to do consumer exposure assessment when the chemical has certain hazards associated to it (e.g. explosive, carcinogenicity, hazardous to the aquatic environment), but the question is how this obligation can be met in light of the scientific uncertainty and technical challenges related to exposure assessment of nanomaterials. In this paper, we investigate to what extent the information and data in the literature can be used to perform consumer exposure assessment according to the REACH requirements and we identify and discuss the key data needs and provide recommendations for consumer exposure assessment of nanomaterials. In total, we identified 76 studies of relevance. Most studies have analyzed the release of Ag and TiO 2 from textiles and paints, and CNT and SiO 2 from nanocomposites. Less than half of the studies report their findings in a format that can be used for exposure assessment under REACH, and most do not include characterization of the released particles. Although inhalation, dermal and oral exposures can be derived using the guidelines on how to complete consumer exposure assessments under REACH, it is clear that the equations are not developed to take the unique properties of nanomaterials into consideration.Future research is therefore needed on developing more generalized methods for representing nanomaterial release from different product groups at relevant environmental conditions. This includes improving the analytical methods for determining nanomaterial alteration and transformation, as well as 2 quantification, which could subsequently lead to more nano-specific consumer exposure assessment models.

show abstract

Characterization of materials released into water from paint containing nano-SiO2

Cited by 78 publications

References 37 publications

Review of nanomaterial aging and transformations through the life cycle of nano-enhanced products

Review of nanomaterial aging and transformations through the life cycle of nano-enhanced products

Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

Release of nanomaterials from solid nanocomposites and consumer exposure assessment – a forward-looking review

Contact Info

Product

Resources

About