Abstract
Monodisperse zinc sulfide particles were prepared by homogeneous precipitation from zinc sulfate solutions. Particle size could be adjusted in the range of 1 to 5 microns by changing the viscosity of the reaction medium. From electron micrographs of particles prepared in high viscosity media subparticles up to 50 nm in diameter could be observed. From these results it was concluded that particle growth took place predominantly by Brownian coagulation.
Furthermore, it was established that stirring the reactor content during the initial phase of particle formation alone did not influence particle size, nor did it promote coagulation of micron-sized spheres. We were able to prepare this material in amounts up to 2 kg of solid material from a reactor with a working volume of 36 l.
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References
Wilhelmy DM, Matijević E (1984) J Chem Soc, Faraday Trans 1 80:563
Williams R, Yocom PN, Stofko FS (1985) J Colloid Interface Sci 106:388
LaMer VK, Dinegar RH (1950) J Amer Chem Soc 72:4847
Sugimoto T. (1987) Adv Colloid Interface Sci 28:65
Bogush GH, Zukoski CF (1991) J Colloid Interface Sci 142:1
Bogush GH, Zukoski CF (1991) J Colloid Interface Sci 142:19
Look JL, Bogush GH Zukoski CF (1990) Faraday Discuss Chem Soc 90:345
Eshuis A, Leendertse HJ, Thoenes D (1991) Colloid Polym Sci 269:1086
Celikkaya A, Akinc M (1990) J Amer Ceramic Soc 73:2360
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Eshuis, A., Koning, C.A.J. The mechanism of particle formation during homogeneous precipitation of zinc sulfide. Colloid Polym Sci 272, 1240–1244 (1994). https://doi.org/10.1007/BF00657776
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DOI: https://doi.org/10.1007/BF00657776