Dispersion Properties of Nano YSZ Particles in Aqueous Suspensions
Authors
Abstract:
In the present research, the aqueous suspensions of nano-sized YSZ particles were prepared using a common and available dispersant (Dolapix CE64) at different pH values and their stability were evaluated through the sedimentation height, viscosity measurement, and microstructural observation. Different amounts of dispersant were tested and the optimum percentage was examined by measuring the viscosity of suspensions. It was found that the use of Dolapix CE64 resulted in a suspension with a low sedimentation height and viscosity. The suspension prepared at pH = 4 with the optimum amount of dispersant (Dolapix CE64 0.1wt%) indicated a reasonable value of zeta potential. Moreover, the packing of particles in sediment layers was evaluated by sedimentation parameters (sedimentation volume and packing density) and the sediment layers were characterized by the microstructural observation. The microstructural observation revealed homogeneous packing of particles in the sedimentation layer, demonstrating the suspension stability, and proper dispersion of particles.
similar resources
Experimental Study on Electrokinetic of Kaolinite Particles in Aqueous Suspensions
Influence of aqueous phase properties and process parameters on kaolinite particle zeta potential was quantified by electrophoresis experiments. The results indicated that pH strongly altered the zeta potential of kaolinite and it decreases at the beginning and then increases in the range of pH = 2–13. The activity of different cations changes the zeta potential and has the following tendency o...
full textsynthesis of amido alkylnaphthols using nano-magnetic particles and surfactants
we used dbsa and nano-magnetic for the synthesis of amido alkylnaphtols.
15 صفحه اولDirective properties of active coated nano - particles
The directivities of the fields radiated by a variety of cylindrical and spherical active coated nano-particles, which are excited by their respective sources of illumination at optical frequencies, are investigated. Particular attention is devoted to the influence of the source location and optical gain constant on the directivities. While significant variations in the directivities are realiz...
full textEthylbenzene Removal from Aqueous Solutions by Nano Magnetic Particles
Background and Objectives : Ethylbenzene (EB) is a dangerously organic compound which the presence of this pollutant in water solutions can be considered as an environmental and public health hazard. In this study, nano magnetic particles (Fe 3 O 4 ) were used as an adsorbent to remove ethylbenzene from aqueous solutions. Methods : The specification of the adsorbent was investigated by transmis...
full textEffective viscosity properties of dilute suspensions of arbitrarily shaped particles
In this paper we derive high-order asymptotic expansions of the effective viscosity properties of a dilute periodic suspension composed of freely-suspended arbitrarily shaped particles dispersed in an incompressible Newtonian fluid. High-order terms are not only function of the viscous moment tensor but also of a distortion tensor that characterizes the periodic array. Mathematics subject class...
full textElectrofiltration of Aqueous Suspensions.
Electrofiltration of hydrosols in fixed-bed filters was studied experimentally. The experimental variables examined included media type, electric field strength, and suspension pH values. The extent of particle removal was found to improve with the application of the electric field, and lower pH values favor particle collection. The filtrate quality displayed the transient behavior of increasin...
full textMy Resources
Journal title
volume 5 issue 3
pages 15- 22
publication date 2019-09-01
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023