Journal ArticleDOI
Stability of co-existing ZnO and TiO 2 nanomaterials in natural water: Aggregation and sedimentation mechanisms
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TLDR
Investigation of the sedimentation behaviors of two most widely used ENMs copresented in the natural water of China showed that the coexistence of like negative charge nZnO and nTiO2 effectively enhanced the stability of either ENM by competing hetero-aggregation with natural colloids (NCs) and reducing to form homo-Aggregates by the hindrance effect on particle collision.About:
This article is published in Chemosphere.The article was published on 2017-10-01. It has received 36 citations till now.read more
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Antimicrobial activity of Titanium dioxide and Zinc oxide nanoparticles supported in 4A zeolite and evaluation the morphological characteristic.
Maryam Azizi-Lalabadi,Maryam Azizi-Lalabadi,Ali Ehsani,Baharak Divband,Mahmood Alizadeh-Sani +4 more
TL;DR: It was demonstrated that TiO2/ZnO nanoparticles supported in 4A zeolite could lead to an optimum activity as antimicrobial agents.
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Review of analytical studies on TiO2 nanoparticles and particle aggregation, coagulation, flocculation, sedimentation, stabilization
TL;DR: A summary of recent analytical studies of TiO2 NPs and their aggregation, coagulation, flocculation, sedimentation, stabilization under a wide range of conditions and processes is provided.
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Controllable synthesis of ZnO nanoflowers with structure-dependent photocatalytic activity
TL;DR: In this article, a simple ultrasonic treatment was employed to controllably synthesize three types of three-dimensional (3D) fluffy ZnO nanoflowers with different nanostructures.
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Effects of interactions between humic acid and heavy metal ions on the aggregation of TiO2 nanoparticles in water environment
TL;DR: Combined effects of Pb2+ and HA on the aggregation behavior of TiO2 NPs in water environment were investigated by Dynamic light scattering (DLS) and Nanoparticle tracking analysis (NTA); and it was found that the addition sequences of HA and heavy metal clearly influenced the aggregation kinetics of TiNPs.
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Understanding effect of solution chemistry on heteroaggregation of zinc oxide and copper oxide nanoparticles.
Tanushree Parsai,Arun Kumar +1 more
TL;DR: The Derjaguin-Landau-Verway-Overbeek (DLVO) analyses indicated that aggregation of mixture of NPs might be happening due to combined effects of ionic layer compression, charge neutralization and van der Waals attraction.
References
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Intermolecular and surface forces
TL;DR: The forces between atoms and molecules are discussed in detail in this article, including the van der Waals forces between surfaces, and the forces between particles and surfaces, as well as their interactions with other forces.
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Theory of the Stability of Lyophobic Colloids
TL;DR: Theory of the Stability of Lyophobic Colloids The Interaction of Sol Particles having an Electric Double Layer and the nature of the electrical double layer which exists around them in salt solutions is discovered.