Home

Citation: YUAN Yong-Zhi, XIONG Hai-Ling, LI Hang, ZHU Hua-Ling, JIANG Xian-Jun. Effect of Gravity and Electrolyte Concentration on the Fractal Structure of Colloidal Aggregates[J]. Acta Physico-Chimica Sinica, ;2007, 23(05): 688-694. doi: 10.1016/S1872-1508(07)60044-8 shu

Effect of Gravity and Electrolyte Concentration on the Fractal Structure of Colloidal Aggregates

1.
Library, Southwest University, Chongqing 400716, P. R. China; College of Resource and Environment, Southwest University, Chongqing 400716, P. R. China

Received Date: 13 October 2006
Available Online: 18 April 2007

The new method developed by Li et al. is used to calculate the energy between two colloidal particles, which can break through the limit that the surface potential to be taken as a constant as electrolyte concentration changes in the classic DLVO theory. Also in this research, both the Boltzmann theory of kinetic energy of colloidal particles and Monte Carlo method are used to simulate the movement of colloidal particles, and the inelastic collision theory is used to solve the problem of effective collision probability. By improving the DDA model, the relationship between the cohesion efficiency and the electrolyte concentration in gravity field is established successfully. The results showed that: (1) the curves of the fractal dimension change with electrolyte concentration as gravity field presence were quite different from that as the gravity field absence. The curves were “L”-shaped as the gravity field absence; however, as the gravity field presence, the curves were“S”-shaped. (2) As gravity field presence, the slow aggregating process can be divided into two sections: the sensitive and non-sensitive sections to electrolyte concentration. In the sensitive section, an inflexion of electrolyte concentration was found. (3) As gravity field absence, the fractal dimension of aggregates was 1.86±0.01 for different size of colloidal particles as the aggregating process was fast under a higher electrolyte concentration condition. Comparatively, for a slow aggregating process of low electrolyte concentration, the fractal dimension increased to 2.01±0.02. However, under the same low electrolyte concentration, the fractal dimension of aggregates approached 3 as the gravity field presence.
- Colloidal particle; Computer simulation; Aggregation; Fractal
1. [1]
  Chenye An , Abiduweili Sikandaier , Xue Guo , Yukun Zhu , Hua Tang , Dongjiang Yang . 红磷纳米颗粒嵌入花状CeO₂分级S型异质结高效光催化产氢. Acta Physico-Chimica Sinica, 2024, 40(11): 2405019-. doi: 10.3866/PKU.WHXB202405019
2. [2]
  Pingwei Wu . Application of Diamond Software in Simplex Teaching. University Chemistry, 2024, 39(3): 118-121. doi: 10.3866/PKU.DXHX202311043
3. [3]
  Yaping Li , Sai An , Aiqing Cao , Shilong Li , Ming Lei . The Application of Molecular Simulation Software in Structural Chemistry Education: First-Principles Calculation of NiFe Layered Double Hydroxide. University Chemistry, 2025, 40(3): 160-170. doi: 10.12461/PKU.DXHX202405185
4. [4]
  Yunchao Li , Shanying Chen , Ke Qi , Kangning Huo , Shuxin Li , Jingyi Li , Ying Wei , Louzhen Fan . A New Colloid Electrophoresis Experiment Incorporating Characteristics of Inquiry Learning and Ideological and Political Education. University Chemistry, 2024, 39(2): 47-51. doi: 10.3866/PKU.DXHX202308063
5. [5]
  Shanying Chen , Kangning Huo , Ke Qi , Jingyi Li , Shuxin Li , Yunchao Li . A Novel Colloid Electrophoresis Experiment with the Characteristics of Resource Recycling and Inquiry-Driven Experimental Design. University Chemistry, 2024, 39(5): 274-286. doi: 10.3866/PKU.DXHX202311067
6. [6]
  Feng Liang , Desheng Li , Yuting Jiang , Jiaxin Dong , Dongcheng Liu , Xingcan Shen . Method Exploration and Instrument Innovation for the Experiment of Colloid ζ Potential Measurement by Electrophoresis. University Chemistry, 2024, 39(5): 345-353. doi: 10.3866/PKU.DXHX202312009
7. [7]
  Jiaxuan Zuo , Kun Zhang , Jing Wang , Xifei Li . 锂离子电池Ni-Co-Mn基正极材料前驱体的形核调控及机制. Acta Physico-Chimica Sinica, 2025, 41(1): 2404042-. doi: 10.3866/PKU.WHXB202404042
8. [8]
  Pingping Zhu , Yongjun Xie , Yuanping Yi , Yu Huang , Qiang Zhou , Shiyan Xiao , Haiyang Yang , Pingsheng He . Excavation and Extraction of Ideological and Political Elements for the Virtual Simulation Experiments at Molecular Level: Taking the Project “the Simulation and Computation of Conformation, Morphology and Dimensions of Polymer Chains” as an Example. University Chemistry, 2024, 39(2): 83-88. doi: 10.3866/PKU.DXHX202309063
9. [9]
  Ziliang KANG , Jiamin ZHANG , Hong AN , Xiaohua LIU , Yang CHEN , Jinping LI , Libo LI . Preparation and water adsorption properties of CaCl₂@MOF-808 in-situ composite moulded particles. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2133-2140. doi: 10.11862/CJIC.20240282
10. [10]
  Yongjie ZHANG , Bintong HUANG , Yueming ZHAI . Research progress of formation mechanism and characterization techniques of protein corona on the surface of nanoparticles. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2318-2334. doi: 10.11862/CJIC.20240247
11. [11]
  Zhuo WANG , Xiaotong LI , Zhipeng HU , Junqiao PAN . Three-dimensional porous carbon decorated with nano bismuth particles: Preparation and sodium storage properties. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 267-274. doi: 10.11862/CJIC.20240223
12. [12]
  Yong Shu , Xing Chen , Sai Duan , Rongzhen Liao . How to Determine the Equilibrium Bond Distance of Homonuclear Diatomic Molecules: A Case Study of H₂. University Chemistry, 2024, 39(7): 386-393. doi: 10.3866/PKU.DXHX202310102
13. [13]
  Hao Ren , Wen Zhao , Fangna Dai , Wenyue Guo . Finite Difference Solution of One-Dimensional Quantum Systems: (1) Fundamental Concepts and Infinite Square Well. University Chemistry, 2025, 40(3): 124-131. doi: 10.12461/PKU.DXHX202405145
14. [14]
  Bing LIU , Huang ZHANG , Hongliang HAN , Changwen HU , Yinglei ZHANG . Visible light degradation of methylene blue from water by triangle Au@TiO₂ mesoporous catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 941-952. doi: 10.11862/CJIC.20230398
15. [15]
  Qin ZHU , Jiao MA , Zhihui QIAN , Yuxu LUO , Yujiao GUO , Mingwu XIANG , Xiaofang LIU , Ping NING , Junming GUO . Morphological evolution and electrochemical properties of cathode material LiAl_0.08Mn_1.92O₄ single crystal particles. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1549-1562. doi: 10.11862/CJIC.20240022
16. [16]
  Cheng Rong , Jiang Jiang , Xinyu Zheng . Constructivism and Deconstructivism in General Chemistry Teaching: Taking the Teaching of Colloidal Solutions as an Example. University Chemistry, 2024, 39(2): 292-297. doi: 10.3866/PKU.DXHX202308035
17. [17]
  Yufang GAO , Nan HOU , Yaning LIANG , Ning LI , Yanting ZHANG , Zelong LI , Xiaofeng LI . Nano-thin layer MCM-22 zeolite: Synthesis and catalytic properties of trimethylbenzene isomerization reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1079-1087. doi: 10.11862/CJIC.20240036
18. [18]
  Zelong LIANG , Shijia QIN , Pengfei GUO , Hang XU , Bin ZHAO . Synthesis and electrocatalytic CO₂ reduction performance of metal-organic framework catalysts loaded with silver particles. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 165-173. doi: 10.11862/CJIC.20240409
19. [19]
  Wenjun Yang , Qiaoling Tan , Wenjiao Xie , Xiaoyu Pan , Youyong Yuan . Construction and Characterization of Calcium Alginate Microparticle Drug Delivery System: A Novel Design and Teaching Practice in Polymer Experiments. University Chemistry, 2025, 40(3): 371-380. doi: 10.12461/PKU.DXHX202405150
20. [20]
  Jia Huo , Jia Li , Yongjun Li , Yuzhi Wang . Ideological and Political Design of Physical Chemistry Teaching: Chemical Potential of Any Component in an Ideal-Dilute Solution. University Chemistry, 2024, 39(2): 14-20. doi: 10.3866/PKU.DXHX202307075

Get Citation

PDF

XML

Metrics

PDF Downloads(2624)
Abstract views(3234)
HTML views(34)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return