Recyclable chitosan adsorbent: Facile functionalization strategy, excellent removal capacity of dyes and adsorption mechanism

被引：5

作者：

Hui Y. ^{[1
]}

Liu R. ^{[2
]}

Lan J. ^{[1
]}

Sun T. ^{[1
]}

Xu A. ^{[1
]}

机构：

[1] School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Henan, Luoyang

[2] State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Hunan, Changsha

来源：

Chemosphere | 2024年 / 359卷

基金：

中国国家自然科学基金;

关键词：

Adsorption mechanism; Chitosan; Extraordinary dye adsorption; Polyethyleneimine;

D O I：

10.1016/j.chemosphere.2024.142291

中图分类号：

学科分类号：

摘要：

The development of chitosan-based adsorbents with facile preparation, high adsorption performance and reusability for the removal of contaminant dyes remains a persistent challenge. To overcome this challenge, herein, we have developed a novel and extremely facile one-step strategy by which a new high-performance chitosan/polyethyleneimine/polyethylene glycol diglycidyl ether adsorbent (named as CC/PEI/PGDE) has been successfully fabricated via direct functionalization of CC by PEI at ambient temperature followed by subsequent freeze-drying. The Box-Behnken Design was employed to optimize the concentrations of adsorbent components. Attractively, this adsorbent exhibit outstanding adsorption performances to congo red (RED), acid blue-25 (BLUE) and amino black-10B (BLACK) with 2901 mg g−1 (90.9 %), 3434 mg g−1 (90.9 %), and 1438 mg g−1 (90.1 %) of adsorption capacities (removal efficiencies), respectively, and maintains nearly the same adsorption behaviors to original adsorbent even after 6 cycles of adsorption-desorption processes. Meanwhile, three kinetic models, three isothermal models, and the Vant Hoff model are employed to further investigate the adsorption behaviors of RED, BLUE, and BLACK dyes by CC/PEI/PGDE. The results from SEM, EDS, BET, FT-IR, pHZPC and XPS confirm that hydrogen bond interactions and electrostatic attractions play crucial roles in facilitating dyes adsorption by CC/PEI/PGDE. It is expected that this work can bring forward a new perspective for the facile design of high-performance adsorbent for removing anionic dyes from wastewater. © 2024 Elsevier Ltd

引用

共 67 条

[11] Hanafi N.A.M., Abdulhameed A.S., Jawad A.H., Alothman Z.A., Yousef T.A., Al Duaij O.K., Alsaiari N.S., Optimized Removal Process and Tailored Adsorption Mechanism of Crystal Violet and Methylene Blue Dyes by Activated Carbon Derived from Mixed Orange Peel and Watermelon Rind Using Microwave-Induced ZnCl2 Activation, (2022)
[12] Ho Y.S., G M., Sorption of dye from aqueous solution by peat, Chem. Eng. J., 70, pp. 115-124, (1998)
[13] Hu X., Long L., Gong T., Zhang J., Yan J., Xue Y., Enhanced alginate-based microsphere with the pore-forming agent for efficient removal of Cu(Ⅱ), Chemosphere, 240, (2020)
[14] Hu B., Yang M., Huang H., Song Z., Tao P., Wu Y., Tang K., Chen X., Yang C., Triazine-crosslinked polyethyleneimine for efficient adsorption and recovery of gold from wastewater, J. Mol. Liq., 367, (2022)
[15] Huang Y., Wang B., Lv J., He Y., Zhang H., Li W., Li Y., Wagberg T., Hu G., Facile synthesis of sodium lignosulfonate/polyethyleneimine/sodium alginate beads with ultra-high adsorption capacity for Cr(VI) removal from water, J. Hazard Mater., 436, (2022)
[16] Huang M., Fan S., Xie L., Cui J., Shan W., Lou Z., Xiong Y., One-step cross-linking of amino-rich chitosan aerogels for efficient and selective adsorption of uranium from radioactive nuclear wastewater, Sep. Purif. Technol., 321, (2023)
[17] Jawad A.H., Abdulhameed A.S., Wilson L.D., Hanafiah M.A.K.M., Nawawi W.I., Alothman Z.A., Rizwan Khan M., Fabrication of Schiff's base chitosan-glutaraldehyde/activated charcoal composite for cationic dye removal: optimization using response surface methodology, J. Polym. Environ., 29, pp. 2855-2868, (2021)
[18] Jawad A.H., S R., Abdulhameed A.S., Syed-Hassan S.S.A., Alothman Z.A., Wilson L.D., Process optimization and adsorptive mechanism for reactive blue 19 dye by magnetic crosslinked chitosan/MgO/Fe3O4 biocomposite, J. Polym. Environ., 30, pp. 2759-2773, (2021)
[19] Jawad A.H., Sahu U.K., Jani N.A., Alothman Z.A., Wilson L.D., Magnetic crosslinked chitosan-tripolyphosphate/MgO/Fe3O4 nanocomposite for reactive blue 19 dye removal: optimization using desirability function approach, Surf. Interfaces, 28, (2022)
[20] Jiang F., Zhang D., Ouyang X.-K., Yang L.-Y., Fabrication of porous polyethyleneimine-functionalized chitosan/Span 80 microspheres for adsorption of diclofenac sodium from aqueous solutions, Sustain. Chem. Pharm., 21, (2021)

← 1 2 3 4 5 6 7 →