Home

Citation: 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[J]. University Chemistry, ;2024, 39(5): 345-353. doi: 10.3866/PKU.DXHX202312009 shu

Method Exploration and Instrument Innovation for the Experiment of Colloid ζ Potential Measurement by Electrophoresis

School of Chemistry and Pharmaceutical Sciences, National Experimental Chemistry Teaching Center, Guangxi Normal University, Guilin 541004, Guangxi Province, China

Received Date: 4 December 2023
Revised Date: 10 January 2024

In the physical chemistry experiment “Colloid ζ potential measurement by electrophoresis”, there exist some issues affecting the effectiveness of experimental teaching, such as prolonged colloid purification time and low accuracy in interface position measurement. To address these challenges, this paper explores methods and conditions for the rapid, large-scale, and repeatable purification of Fe(OH)₃ colloids using acid and alkali ion exchange resins. Additionally, an innovative device utilizing a digital scale and a light barrier for precise measurement of colloidal interface position has been designed. This device is integrated with the electrophoresis tube holder, forming a dedicated set of instrumentation. The increased accuracy in interface position measurement allows for a reduction in electrophoresis measurement time to 5 minutes, mitigating the impact of potential gradient changes caused by prolonged electrophoresis. The application of these improved methods and instruments in experimental teaching has resulted in enhanced efficiency, reduced measurement result deviation, and improved repeatability. This lays the groundwork for incorporating some exploratory experiments into the teaching program.
- ζ Potential,
- Electrophoresis,
- Ferric hydroxide colloid,
- Ion exchange,
- Instrument innovation
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
1. [1]
  Xinyu Liu , Weiran Hu , Zhengkai Li , Wei Ji , Xiao Ni . Algin Lab: Surging Luminescent Sea. University Chemistry, 2024, 39(5): 396-404. doi: 10.3866/PKU.DXHX202312021
2. [2]
  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
3. [3]
  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
4. [4]
  Ji-Quan Liu , Huilin Guo , Ying Yang , Xiaohui Guo . Calculation and Discussion of Electrode Potentials in Redox Reactions of Water. University Chemistry, 2024, 39(8): 351-358. doi: 10.3866/PKU.DXHX202401031
5. [5]
  Lina Guo , Ruizhe Li , Chuang Sun , Xiaoli Luo , Yiqiu Shi , Hong Yuan , Shuxin Ouyang , Tierui Zhang . 层状双金属氢氧化物的层间阴离子对衍生的Ni-Al₂O₃催化剂光热催化CO₂甲烷化反应的影响. Acta Physico-Chimica Sinica, 2025, 41(1): 2309002-. doi: 10.3866/PKU.WHXB202309002
6. [6]
  Yu'ang Liu , Yuechao Wu , Junyu Huang , Tao Wang , Xiaohong Liu , Tianying Yan . Computation of Absolute Electrode Potential of Standard Hydrogen Electrode Using Ab Initio Method. University Chemistry, 2025, 40(3): 215-222. doi: 10.12461/PKU.DXHX202407112
7. [7]
  Xin Han , Zhihao Cheng , Jinfeng Zhang , Jie Liu , Cheng Zhong , Wenbin Hu . Design of Amorphous High-Entropy FeCoCrMnBS (Oxy) Hydroxides for Boosting Oxygen Evolution Reaction. Acta Physico-Chimica Sinica, 2025, 41(4): 100033-. doi: 10.3866/PKU.WHXB202404023
8. [8]
  Endong YANG , Haoze TIAN , Ke ZHANG , Yongbing LOU . Efficient oxygen evolution reaction of CuCo₂O₄/NiFe-layered bimetallic hydroxide core-shell nanoflower sphere arrays. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 930-940. doi: 10.11862/CJIC.20230369
9. [9]
  Yan LIU , Jiaxin GUO , Song YANG , Shixian XU , Yanyan YANG , Zhongliang YU , Xiaogang HAO . Exclusionary recovery of phosphate anions with low concentration from wastewater using a CoNi-layered double hydroxide/graphene electronically controlled separation film. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1775-1783. doi: 10.11862/CJIC.20240043
10. [10]
  Yaping ZHANG , Tongchen WU , Yun ZHENG , Bizhou LIN . Z-scheme heterojunction β-Bi₂O₃ pillared CoAl layered double hydroxide nanohybrid: Fabrication and photocatalytic degradation property. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 531-539. doi: 10.11862/CJIC.20240256
11. [11]
  Xiaoning TANG , Shu XIA , Jie LEI , Xingfu YANG , Qiuyang LUO , Junnan LIU , An XUE . Fluorine-doped MnO₂ with oxygen vacancy for stabilizing Zn-ion batteries. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1671-1678. doi: 10.11862/CJIC.20240149
12. [12]
  Xiaotian ZHU , Fangding HUANG , Wenchang ZHU , Jianqing ZHAO . Layered oxide cathode for sodium-ion batteries: Surface and interface modification and suppressed gas generation effect. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 254-266. doi: 10.11862/CJIC.20240260
13. [13]
  Xiaofei Zhou , Yu-Qing Cao , Feng Zhu , Li Qi , Linhai Liu , Ni Yan , Zhiqiang Zhu . Missions and Challenges of Instrumental Analysis Course in the New Era. University Chemistry, 2024, 39(6): 174-180. doi: 10.3866/PKU.DXHX202310058
14. [14]
  Zhonghua Xi , Xuanfeng Kong , Jinyue Yang , Bin Liu , Tingyu Zhu , Hui Zhang , Wenwei Zhang . Construction of Public Teaching Instrument Platform and Exploration of Opening Mechanism. University Chemistry, 2024, 39(7): 200-206. doi: 10.12461/PKU.DXHX202405123
15. [15]
  Yanan Jiang , Yuchen Ma . Brief Discussion on the Electronic Exchange Interaction in Quantum Chemistry Computations. University Chemistry, 2025, 40(3): 10-15. doi: 10.12461/PKU.DXHX202402058
16. [16]
  Dongxue Han , Zhuoyong Li , Hanbo Zou , Xu Wu , Yang Yuan , Hongbin Li . Research on Innovative Experimental Teaching to Cultivate Top Talents. University Chemistry, 2024, 39(7): 230-236. doi: 10.12461/PKU.DXHX202406094
17. [17]
  Zhuomin Zhang , Hanbing Huang , Liangqiu Lin , Jingsong Liu , Gongke Li . Course Construction of Instrumental Analysis Experiment: Surface-Enhanced Raman Spectroscopy for Rapid Detection of Edible Pigments. University Chemistry, 2024, 39(2): 133-139. doi: 10.3866/PKU.DXHX202308034
18. [18]
  Wei Shao , Wanqun Zhang , Pingping Zhu , Wanqun Hu , Qiang Zhou , Weiwei Li , Kaiping Yang , Xisheng Wang . Design and Practice of Ideological and Political Cases in the Course of Instrument Analysis Experiment: Taking the GC-MS Experiment as an Example. University Chemistry, 2024, 39(2): 147-154. doi: 10.3866/PKU.DXHX202309048
19. [19]
  Yifan Xie , Liyun Yao , Ruolin Yang , Yuxing Cai , Yujie Jin , Ning Li . Application of Comparative Pedagogy in Instrumental Analysis Experiment Teaching. University Chemistry, 2024, 39(3): 266-273. doi: 10.3866/PKU.DXHX202309068
20. [20]
  Zhenyu Feng , Zhaozhen Cao , Jinhua Zhan . Exploration of Online Training System for Large-Scale Instrument in Open Laboratory of Universities. University Chemistry, 2024, 39(4): 1-6. doi: 10.3866/PKU.DXHX202311016

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(182)
HTML views(39)

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