The study investigates the role of surface modification on the adsorption isotherms and kinetics of collectors, aiming to enhance the efficiency of adsorption processes. Surface modification techniques, such as functionalization with various chemical groups, were employed to alter the surface properties of adsorbents. The adsorption behavior of collectors on modified surfaces was examined through a series of batch experiments. Isotherm models, including Langmuir and Freundlich, were applied to describe the equilibrium data, while kinetic models, such as pseudo-first-order and pseudo-second-order, were used to analyze the adsorption rate. Results indicated that surface modification significantly influences both the isotherm and kinetic parameters, improving the adsorption capacity and rate. The modified surfaces exhibited enhanced interactions with collectors, attributed to increased surface area, improved porosity, and the introduction of functional groups. This study provides valuable insights into optimizing adsorption processes through surface modification, with potential applications in water treatment, pollution control, and resource recovery.

Surface Modification, Adsorption Isotherms, Adsorption Kinetics

Fuerstenau, M. C; Rice, D. A., Somasundaran, P; and Fuerstenau, D. W; 1965, “Metal ion hydrolysis and surface charge in beryl flotation”, Inst. Min. Metall. Trans, 74, 381.

Freundlich, H; 1906, “Over the adsorption in solution”, J. Phys. Chem, 57, 1100-1107.

Haghseresht, F; and G. Q. Lu; 1998, “Adsorption characteristics of phenolic compounds onto coal-reject-derived adsorbents”, Energy & Fuels, 12(6), 1100-1107.

Ho, Yuh-Shan; 2006, “Review of second-order models for adsorption systems”, Journal of hazardous materials, 136(3), 681-689.

Jie, Zhang; Wang Weiqing; Liu Jing; Huang Yang; Feng Qiming; and Zhao Hong; 2014, “Fe (III) as an activator for the flotation of spodumene, albite, and quartz minerals”, Minerals Engineering, 61, 16-22.

Kundu, Sanghamitra; and Gupta, A. K.; 2006, “Arsenic adsorption onto iron oxide-coated cement (IOCC): regression analysis of equilibrium data with several isotherm models and their optimization”, Chemical Engineering Journal, 122(1), 93-106.

Wick, Roger; Peter Walde; and Pier Luigi Luisi; 1995, “Light microscopic investigations of the autocatalytic self-reproduction of giant vesicles”, Journal of the American Chemical Society, 117(4) 1435-1436.

Wills, Barry A; and James Finch; 2015, “mineral processing technology: an introduction to the practical aspects of ore treatment and mineral recovery”, Butterworth-Heinemann,.

Zhong, Kangnien; and Lin Cui; 1987, “Influence of Fe 2+ ions of ilmenite on its flotability”,International Journal of Mineral Processing, 20(3), 253-265.

Zhu, Yang-ge; Guo-fan Zhang; Qi-ming Feng; Dai-cui Yan; and Wei-qing Wang; 2011, “Effect of surface dissolution on flotation separation of fine ilmenite from titanaugite”, Transactions of Nonferrous Metals Society of China, 21(5), 1149-1154.