Influence of electrolyte metal ions, shear force, and temperature on the environmental fate and behavior of humic acid colloids

被引：0
作者：
Tan, Liqiang [1 ,2 ]
Hu, Xingao [1 ]
Chen, Guiping [3 ]
Wang, Song [1 ]
Wang, Yuxiang [1 ]
Wu, Caijin [1 ]
机构：
[1] Huaiyin Inst Technol, Natl & Local Joint Engn Res Ctr Mineral Salt Deep, Huaian 223003, Peoples R China
[2] Jiangsu Prov Key Lab Palygorskite Sci & Appl Techn, Huaian 223003, Peoples R China
[3] Nanjing Anhuai Innovat Pharmaceut Res Inst Co Ltd, Nanjing 210046, Peoples R China
来源：
COLLOID AND POLYMER SCIENCE | 2025年 / 303卷 / 03期
关键词：
Shear force; Temperature; Aggregation; Disaggregation; Humic acid colloids; NATURAL ORGANIC-MATTER; AGGREGATION KINETICS; SUBSTANCES; NANOPARTICLES; COMPLEXES; STRENGTH; DISSOLUTION; STABILITY; SORPTION; BINDING;
D O I：
10.1007/s00396-024-05365-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The fate and migration behavior of humic acid (HA) colloids in the natural environmental system is affected by numerous factors. This work investigated the effect of metal ions, shear force, and temperature on the aggregation behavior of HA colloids by using dynamic light scattering and fluorescence measurements. Experimental results indicated that the presence of electrolyte cations in the reaction system could decrease electrostatic repulsion and form intermolecular interactions between HA molecules, thus inducing a fast aggregation of HA colloids. A relatively small shear force could facilitate the formation of HA aggregates by enhancing the efficiency of intermolecular collisions, while a high shear force could break the large aggregates into smaller particles. With the increase of the water temperature, HA colloids aggregated aggressively due to the enhanced random Brownian motion of the particles. However, large aggregates formed at higher temperatures disaggregated rapidly due to the enhanced Brownian motion and thermal kinetic energy of water molecules. These results help us to generate hypotheses to guide further studies on the environmental behavior characteristics of HA colloids.
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收藏
页码：519 / 528
页数：10
相关论文
共 45 条
  • [1] Kalbitz K., Geyer S., Geyer W., A comparative characterization of dissolved organic matter by means of original aqueous samples and isolated humic substances, Chemosphere, 40, pp. 1305-1312, (2000)
  • [2] Yu W.Z., Liu T., Gregory J., Li G.B., Liu H.J., Qu J.H., Aggregation of nano-sized alum-humic primary particles, Sep Purif Technol, 99, pp. 44-49, (2012)
  • [3] Baigorri R., Fuentes M., Gonzalez-Gaitano G., Garcia-Mina J.M., Analysis of molecular aggregation in humic substances in solution, Colloid Surface A, 302, pp. 301-306, (2007)
  • [4] Fetsch D., Hradilova M., Mendez E.M.P., Havel J., Capillary zone electrophoresis study of aggregation of humic substances, J Chromatogr A, 817, pp. 313-323, (1998)
  • [5] Kang K., Shin H.S., Park H., Characterization of humic substances resent in landfill leachates with different landfill ages and its implications, Water Res, 36, pp. 4023-4032, (2002)
  • [6] Town R.M., Leeuwen H.P., Buffle J., Chemodynamics of soft nanoparticulate complexes: Cu(II) and Ni(II) complexes with fulvic acids and aquatic humic acids, Environ Sci Technol, 46, pp. 10487-10498, (2012)
  • [7] Cheng W.P., Chi F.H., A study of coagulation mechanism of polyferric sulfate reacting with hunic acid using a fluorescence-quenching method, Water Res, 36, pp. 4583-4591, (2002)
  • [8] Kloster N., Brigante M., Zanini G., Avena M., Aggregation kinetics of humic acids in the presence of calcium ions, Colloid Surface A, 427, pp. 76-82, (2013)
  • [9] Xu H., Yu G., Yang L., Jiang H., Combination of two-dimensional correlation spectroscopy and parallel factor analysis to characterize the binding of heavy metals with DOM in lake sediments, J Hazard Mater, 263, pp. 412-421, (2013)
  • [10] Wang Y., Du B., Liu J., Lu J., Shi B., Tang H., Surface analysis of cryofixation-vacuum-freeze-dried polyaluminum chloride-humic acid (PACL-HA) flocs, J Colloid Interf Sci, 316, pp. 457-466, (2007)
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