Synthesis and size control of CaHPO4 particles in a two-liquid phase micro-mixing process

Control of crystal morphology through supersaturation ratio and mixing conditions

“…The active area of the stainless steel membrane with pore size of 5 mm was 12.5 mm 2 , and the geometric size of the mixing chamber was 12 mm  4 mm  1 mm. More detailed description could be found in our previous articles [3][4][5][6].…”

“…Many methods have been used for synthesis of nanoparticles [1][2][3][4][5][6][7][8][9]. Among those methods, the method of solution-phase synthesis is one of the most popular methods since it is easy to control characteristics including size, morphology and composition.…”

“…Moreover, the morphology control of particles is rarely considered. Our group has years of experience in the field of nanoparticle synthesis [3][4][5][6]. A microfiltration membrane dispersion reactor was used in the synthesis, which can provide an almost ideal mixing environment for both two-liquid phase-mixing and singleliquid mixing systems [22][23][24][25][26][27].…”

Preparation of calcium phosphates with negative zeta potential using sodium calcium polyphosphate as a precursor

“…Instead, the experimental conditions of SCPP exposure determine the final phase of the respective materials. Additionally, this approach using precipitated SCPP precursors provides a new method to prepare DCPA, which is quite different from the other known methods, such as dehydration of brushite (DCPD, CaH-PO 4 Á 2H 2 O), or using organic solvents and chemicals [8][9][10]. The representive SEM images of as-prepared materials are presented in Fig.…”

Dielectric and ac ionic conductivity investigations in the monetite

“…The quality of the CaHPO 4 crystal is affected by the purity quotient, crystal morphology, average size and size distribution, which must be controlled in the preparation process. A new preparation technology of CaHPO 4 crystal with the two-liquid phase mixing system, and the membrane dispersion precipitation technology has been applied [14]. Recently, optical properties of CaHPO 4 have been investigated [15].…”