Indexed by:
Journal Papers
First Author:
Jiang, Xiaobin
Correspondence Author:
He, GH (corresponding author), Dalian Univ Technol, Sch Chem Engn Panjin, Panjin 124221, Peoples R China.
Co-author:
Han, Mingguang,Xia, Zeqiu,Li, Jin,Ruan, Xuehua,Yan, Xiaoming,Xiao, Wu,He, Gaohong
Date of Publication:
2020-08-01
Journal:
AICHE JOURNAL
Included Journals:
SCIE
Document Type:
J
Volume:
66
Issue:
8
ISSN No.:
0001-1541
Key Words:
3D printing; crystallization; interfacial process; micro droplet;
nucleation
Abstract:
Droplet evaporative crystallization on microscale heterogeneous surface is a vivid topic in chemical engineering, bioengineering, nanomaterials, and so on. Here, 3D printed interfacial matrix platform with regular pillar convexity and tunnel structure is fabricated to reveal the mechanism of the interfacial micro droplet crystallization. Element-based rotation volume model is established to simulate the concentration and nucleation barrier distribution during the microscale process. Sodium urate monohydrate and NaCl crystallization on the pillar convex structure both confirm that confined capillary flow in the micro droplet and initial nucleation condition dominate the nucleation, growth control and particle distribution. Droplet crystallization stretches over the tunnel structure reveal an interesting phenomenon that two regions possessing distinct-different nucleation barriers can isolated obtain the crystal particles from nanoscale to even millimeter scale. The fabricated platform and the capillary circulation transfer theory unfold a potential approach to harvest high value-added crystals with specific morphology and desire sizes distribution.
Translation or Not:
no
