An amino-functionalised magnetic mesoporous silica was prepared through one-step copolymerisation method. Morphology, characteristic-group composition, microscopic morphology and specific surface area of the magnetic mesoporous silicas were analysed by scanning electron microscope, Fourier transform infrared spectroscopy, transmission electron microscope and nitrogen adsorption–desorption. The prepared magnetic silica MS-1 had the characteristics of micron-sized particle size, exceptional long-range ordered pore structure, and as high as 114.6 m2/g in specific surface area. The adsorption kinetics of tetracycline (TC) and Cu(II) onto magnetic mesoporous silicas in sole and binary system were also investigated. MS-1 could adsorb both of TC and Cu(II) with adsorption capacities of 35.14 and 23.65 mg/g, respectively, which were enhanced in binary systems about 26.5 and 19.7%, respectively. The solution pH significantly affected the adsorption because of the pH-responsive speciation of TC, TC–Cu(II) complex and the amine groups on adsorbent. This work proposed a potential effective method for the synergistic adsorption of antibiotics and heavy metals from aquatic environment.
Inspec keywords: organic compounds; desorption; transmission electron microscopy; particle size; Fourier transform infrared spectra; adsorption; pH; polymerisation; copper; mesoporous materials; magnetic particles; nanomagnetics; nanoparticles; silicon compounds; water treatment; scanning electron microscopy; nanofabrication; surface morphology; X-ray diffraction
Other keywords: amino-functionalised magnetic mesoporous silica; amine groups; one-step copolymerisation method; SiO2; Fourier transform infrared spectroscopy; antibiotics; Cu; aquatic environment; micronsized particle size; nitrogen adsorption–desorption; tetracycline; transmission electron microscopy; microscopic morphology; scanning electron microscopy; pH-responsive speciation; adsorption kinetics; long-range ordered pore structure
Subjects: Amorphous and nanostructured magnetic materials; Infrared and Raman spectra in inorganic crystals; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Sorption and accommodation coefficients (surface chemistry); Fine-particle magnetic systems; Structure of powders and porous materials; Contamination remediation (environmental science technology); Adsorption and desorption kinetics; evaporation and condensation
References
-
-
1)
-
1. Zhang, Y., Cai, X., Lang, X., et al: ‘Insights into aquatic toxicities of the antibiotics oxytetracycline and ciprofloxacin in the presence of metal: complexation versus mixture’, Environ. Pollut., 2012, 166, pp. 48–56 (doi: 10.1016/j.envpol.2012.03.009).
-
-
2)
-
2. Kong, W.D., Zhu, Y.G., Fu, B.J., et al: ‘The veterinary antibiotic oxytetracycline and Cu influence functional diversity of the soil microbial community’, Environ. Pollut., 2006, 143, (1), pp. 129–137 (doi: 10.1016/j.envpol.2005.11.003).
-
-
3)
-
3. Bai, C.X., Shen, F., Qi, X.H.: ‘Preparation of porous carbon directly from hydrothermal carbonization of fructose and phloroglucinol for adsorption of tetracycline’, Chin. Chem. Lett., 2017, 28, (5), pp. 960–962 (doi: 10.1016/j.cclet.2016.12.026).
-
-
4)
-
4. Zhu, Y., Bai, Z.S., Wang, H.L.: ‘Microfluidic synthesis of thiourea modified chitosan microsphere of high specific surface area for heavy metal wastewater treatment’, Chin. Chem. Lett., 2017, 28, (3), pp. 633–641 (doi: 10.1016/j.cclet.2016.10.031).
-
-
5)
-
5. Park, J., Yamashita, N., Park, C., et al: ‘Removal characteristics of pharmaceuticals and personal care products: comparison between membrane bioreactor and various biological treatment processes’, Chemosphere, 2017, 179, p. 347 (doi: 10.1016/j.chemosphere.2017.03.135).
-
-
6)
-
6. Garcíamuñoz, P., Pliego, G., Zazo, J.A., et al: ‘Sulfonamides photoassisted oxidation treatments catalyzed by ilmenite’, Chemosphere, 2017, 180, pp. 523–530 (doi: 10.1016/j.chemosphere.2017.04.047).
-
-
7)
-
7. Rong, S.P., Sun, Y.B., Zhao, Z.H.: ‘Degradation of sulfadiazine antibiotics by water falling film dielectric barrier discharge’, Chin. Chem. Lett., 2014, 25, (1), pp. 187–192 (doi: 10.1016/j.cclet.2013.11.003).
-
-
8)
-
8. Gu, N., Cao, Y., Hu, S.Q., et al: ‘Controlled synthesis of hempflower-like Fe2O3 microspheres applied on the water treatment’, Micro Nano Lett., 2011, 6, (6), pp. 434–436 (doi: 10.1049/mnl.2011.0163).
-
-
9)
-
9. Cheng, J., Zhao, Q., Jin, J., et al: ‘Preparation of novel magnetic amino-modified hypercrosslinked resins for effective removal of aromatic nitro-compounds’, Chem. Lett., 2017, 46, (1), pp. 61–64 (doi: 10.1246/cl.160801).
-
-
10)
-
10. Liu, S., Xu, W.-h., Liu, Y.-g., et al: ‘Facile synthesis of Cu(II) impregnated biochar with enhanced adsorption activity for the removal of doxycycline hydrochloride from water’, Sci. Total Environ., 2017, 592, pp. 546–553 (doi: 10.1016/j.scitotenv.2017.03.087).
-
-
11)
-
11. Ma, Y., Zhou, Q., Zhou, S., et al: ‘A bifunctional adsorbent with high surface area and cation exchange property for synergistic removal of tetracycline and Cu2+’, Chem. Eng. J., 2014, 258, pp. 26–33 (doi: 10.1016/j.cej.2014.07.096).
-
-
12)
-
12. Tan, Y., Guo, Y., Gu, X., et al: ‘Effects of metal cations and fulvic acid on the adsorption of ciprofloxacin onto goethite’, Environ. Sci. Pollut. Res., 2015, 22, (1), pp. 609–617 (doi: 10.1007/s11356-014-3351-4).
-
-
13)
-
13. Wang, Z.-y., Duan, L., Zhu, D.-q., et al: ‘Effects of Cu(Ii) and Ni(Ii) ions on adsorption of tetracycline to functionalized carbon nanotubes’, J. Zhejiang Univ. Sci. A, 2014, 15, (8), pp. 653–661 (doi: 10.1631/jzus.A1400108).
-
-
14)
-
14. Vu, B.K., Snisarenko, O., Lee, H.S., et al: ‘Adsorption of tetracycline on La-impregnated MCM-41 materials’, Environ. Technol., 2010, 31, (3), pp. 233–241 (doi: 10.1080/09593330903453210).
-
-
15)
-
15. Xu, L., Dai, J., Pan, J., et al: ‘Performance of rattle-type magnetic mesoporous silica spheres in the adsorption of single and binary antibiotics’, Chem. Eng. J., 2011, 174, (1), pp. 221–230 (doi: 10.1016/j.cej.2011.09.003).
-
-
16)
-
16. El-Toni, A.M., Habila, M.A., Ibrahim, M.A., et al: ‘Simple and facile synthesis of amino functionalized hollow core-mesoporous shell silica spheres using anionic surfactant for Pb(Ii), Cd(Ii), and Zn(Ii) adsorption and recovery’, Chem. Eng. J., 2014, 251, pp. 441–451 (doi: 10.1016/j.cej.2014.04.072).
-
-
17)
-
17. Yang, Z., Chen, G., Weng, H., et al: ‘Efficient and selective separation of U(VI) and Th(IV) from rare earths using functionalized hierarchically mesoporous silica’, J. Mater. Sci., 2018, 53, pp. 3398–3416 (doi: 10.1007/s10853-017-1808-9).
-
-
18)
-
18. Khder, A.E.S., Ahmed, S.A., Khairou, K.S., et al: ‘Competent, selective and high yield of 7-hydroxy-4-methyl coumarin over sulfonated mesoporous silica as solid acid catalysts’, J. Porous Mater., 2018, 52, pp. 1–13 (doi: 10.1007/s10934-017-0414-1).
-
-
19)
-
19. Hu, Y., He, Y., Wang, X., et al: ‘Efficient adsorption of phenanthrene by simply synthesized hydrophobic Mcm-41 molecular sieves’, Appl. Surf. Sci., 2014, 311, (9), pp. 825–830 (doi: 10.1016/j.apsusc.2014.05.173).
-
-
20)
-
20. Zhou, Q., Li, Z., Shuang, C., et al: ‘Efficient removal of tetracycline by reusable magnetic microspheres with a high surface area’, Chem. Eng. J., 2012, 210, (6), pp. 350–356 (doi: 10.1016/j.cej.2012.08.081).
-
-
21)
-
21. Zhang, Z., Liu, H., Wu, L., et al: ‘Preparation of amino-Fe(Iii) functionalized mesoporous silica for synergistic adsorption of tetracycline and copper’, Chemosphere, 2015, 138, (2), pp. 625–632 (doi: 10.1016/j.chemosphere.2015.07.014).
-
-
22)
-
22. Zhang, Z., Lan, H., Liu, H., et al: ‘Removal of tetracycline antibiotics from aqueous solution by amino-Fe (III) functionalized SBA15’, Colloids Surf. A, 2015, 471, pp. 133–138 (doi: 10.1016/j.colsurfa.2015.02.018).
-
-
23)
-
23. Zhang, Z., Lan, H., Liu, H., et al: ‘Iron-incorporated mesoporous silica for enhanced adsorption of tetracycline in aqueous solution’, RSC Adv., 2015, 5, pp. 42407–42413 (doi: 10.1039/C5RA05478H).
-
-
24)
-
24. Anbia, M., Kargosha, K., Khoshbooei, S.: ‘Heavy metal ions removal from aqueous media by modified magnetic mesoporous silica MCM-48’, Chem. Eng. Res. Des., 2015, 93, pp. 777–788 (doi: 10.1016/j.cherd.2014.07.018).
-
-
25)
-
25. Sun, C.J., Sun, L.Z., Sun, X.X.: ‘Graphical evaluation of the favorability of adsorption processes by using conditional Langmuir constant’, Ind. Eng. Chem. Res., 2013, 52, pp. 14251–14260 (doi: 10.1021/ie401571p).
-
-
1)
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