Abstract
The in-situ coating of zeolite crystals on Al2O3–SiO2 glass fiber was investigated using two commercial fibers (FB1 and FB2). The fibers were submitted to hydrothermal treatment at different temperatures, resulting in the crystallization of zeolite on their surfaces. The materials obtained were characterized by X-ray fluorescence, X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy. Batch and fixed bed essays were carried out to evaluate the performance of the materials in the adsorption Cu2+, Cd2+ and Pb2+ from aqueous solutions, at 28 ± 2 °C. The syntheses in which the FB1 sample was employed resulted in zeolite A as the only crystalline phase. The exception was the FB1-100 material which sodalite was also formed. When FB2 samples were used, only the FB2-85 material indicated resulted in zeolite A without secondary phases, while the other materials presented a mixture of phases. The materials FB1-95 and FB2-95 presented better performance in batch adsorption experiments than the other samples, with Qe for FB1-95 being 0.049 mmol g−1 for the three metal ions, and Qe for FB2-95 being 0.043, 0.047, and 0.049 mmoL g−1 for Cu2+, Cd2+ and Pb2+, respectively. Therefore, these samples were selected for the study of fixed bed adsorption. The following adsorption order was verified: Pb2+ > Cd2+ > Cu2+. Linear Driving Force (LDF) model proved to be suitable for the adsorption experimental data, confirming the high potential of the FB1-95 and FB2-95 materials for the adsorption of Cu2+, Cd2+ and Pb2+ in aqueous solution.
Similar content being viewed by others
Data availability
Not applicable.
Code availability
Not applicable.
References
Melo, D.D.Q., Vidal, C.B., Medeiros, T.C., Raulino, G.S.C., Dervanoski, A., Pinheiro, M.D.C., Nascimento, R.F.D.: Biosorption of metal ions using a low cost modified adsorbent (Mauritia flexuosa): experimental design and mathematical modeling. Environ. Technol. 37(17), 2157–2171 (2016). https://doi.org/10.1080/09593330.2016.1144796
Paramitha, T., Wulandari, W., Rizkiana, J., Sasongko, D.: Performance evaluation of coal fly ash based zeolite A for heavy metal ions adsorption of wastewater. IOP Conf. Ser. Mater. Sci. Eng. 1, 012095 (2019)
Hong, M., Yu, L., Wang, Y., Zhang, J., Chen, Z., Dong, L., Zan, Q., Li, R.: Heavy metal adsorption with zeolites: the role of hierarchical pore architecture. Chem. Eng. J. 359, 363–372 (2019). https://doi.org/10.1016/j.cej.2018.11.087
Al Dwairi, R., Omar, W., Al-Harahsheh, S.: Desalination: kinetic modelling for heavy metal adsorption using Jordanian low cost natural zeolite (fixed bed column study). J. Water Reuse 5(2), 231–238 (2015). https://doi.org/10.2166/wrd.2014.063
Chaabane, L., Beyou, E., El Ghali, A., Baouab, M.H.V.: Comparative studies on the adsorption of metal ions from aqueous solutions using various functionalized graphene oxide sheets as supported adsorbents. J. Hazard. Mater. 389, 121839 (2020). https://doi.org/10.1016/j.jhazmat.2019.121839
Xiang, B., Ling, D., Lou, H., Gu, H.: 3D hierarchical flower-like nickel ferrite/manganese dioxide toward lead (II) removal from aqueous water. J. Hazard. Mater. 325, 178–188 (2017). https://doi.org/10.1016/j.jhazmat.2016.11.011
Kołodyńska, D., Krukowska-Bąk, J., Kazmierczak-Razna, J., Pietrzak, R.: Uptake of heavy metal ions from aqueous solutions by sorbents obtained from the spent ion exchange resins. Microporous Mesoporous Mater. 244, 127–136 (2017). https://doi.org/10.1016/j.micromeso.2017.02.040
Nejadshafiee, V., Islami, M.R.: Adsorption capacity of heavy metal ions using sultone-modified magnetic activated carbon as a bio-adsorbent. Mater. Sci. Eng. 101, 42–52 (2019)
Otunola, B.O., Ololade, O.O.: Innovation: a review on the application of clay minerals as heavy metal adsorbents for remediation purposes. Environ. Technol. 18, 100692 (2020). https://doi.org/10.1016/j.eti.2020.100692
Goncalves, M.B., Schmidt, D.V., Dos Santos, F.S., Cipriano, D.F., Gonçalves, G.R., Freitas, J.C., de Pietre, M.K.: Nanostructured faujasite zeolite as metal ion adsorbent: kinetics, equilibrium adsorption and metal recovery studies. Water Sci. Technol. 83(2), 358–371 (2021). https://doi.org/10.2166/wst.2020.580
Khanmohammadi, H., Bayati, B., Rahbar-Shahrouzi, J., Babaluo, A.-A., Ghorbani, A.: Molecular simulation of the ion exchange behavior of Cu2+, Cd2+ and Pb2+ ions on different zeolites exchanged with sodium. J. Environ. Chem. Eng. 7(3), 103040 (2019). https://doi.org/10.1016/j.jece.2019.103040
Meng, Q., Chen, H., Lin, J., Lin, Z., Sun, J.: Zeolite A synthesized from alkaline assisted pre-activated halloysite for efficient heavy metal removal in polluted river water and industrial wastewater. J. Environ. Sci. 56, 254–262 (2017). https://doi.org/10.1016/j.jes.2016.10.010
Chen, L.-H., Sun, M.-H., Wang, Z., Yang, W., Xie, Z., Su, B.-L.: Hierarchically structured zeolites: from design to application. Chem. Rev. 120(20), 11194–11294 (2020). https://doi.org/10.1021/acs.chemrev.0c00016
Cundy, C.S., Cox, P.A.: The hydrothermal synthesis of zeolites: history and development from the earliest days to the present time. Chem. Rev. 103(3), 663–702 (2003). https://doi.org/10.1021/cr020060i
Weckhuysen, B.M., Yu, J.: Recent advances in zeolite chemistry and catalysis. Chem. Soc. Rev. 44(20), 7022–7024 (2015). https://doi.org/10.1039/C5CS90100F
Gao, X., Gao, B., Liu, H., Zhang, C., Zhang, Y., Jiang, J., Gu, X.: Fabrication of stainless steel hollow fiber supported NaA zeolite membrane by self-assembly of submicron seeds. Sep. Purif. Technol. 234, 116121 (2020). https://doi.org/10.1016/j.seppur.2019.116121
Yang, X., Liu, Y., Yan, C., Chen, G.: Solvent-free preparation of hierarchical 4A zeolite monoliths: role of experimental conditions. J. Cryst. Growth 528, 125286 (2019). https://doi.org/10.1016/j.jcrysgro.2019.125286
Wei, Y., Parmentier, T.E., de Jong, K.P., Zečević, J.: Tailoring and visualizing the pore architecture of hierarchical zeolites. Chem. Soc. Rev. 44(20), 7234–7261 (2015). https://doi.org/10.1039/C5CS00155B
Vasiliev, P., Akhtar, F., Grins, J., Mouzon, J., Andersson, C., Hedlund, J., Bergström, L.: Strong hierarchically porous monoliths by pulsed current processing of zeolite powder assemblies. ACS Appl. Mater. Interfaces. 2(3), 732–737 (2010). https://doi.org/10.1021/am900760w
Chen, L.-H., Li, Y., Su, B.-L.: Hierarchy in materials for maximized efficiency. Natl. Sci. Rev. 7(11), 1626–1630 (2020). https://doi.org/10.1093/nsr/nwaa251
Lopez-Orozco, S., Inayat, A., Schwab, A., Selvam, T., Schwieger, W.: Zeolitic materials with hierarchical porous structures. Adv. Mater. 23(22–23), 2602–2615 (2011). https://doi.org/10.1002/adma.201100462
Schwieger, W., Machoke, A.G., Weissenberger, T., Inayat, A., Selvam, T., Klumpp, M., Inayat, A.: Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity. Chem. Soc. Rev. 45(12), 3353–3376 (2016). https://doi.org/10.1039/C5CS00599J
Larlus, O., Valtchev, V., Patarin, J., Faust, A.-C., Maquin, B.: Preparation of silicalite-1/glass fiber composites by one-and two-step hydrothermal syntheses. Microporous Mesoporous Mater. 56(2), 175–184 (2002). https://doi.org/10.1016/S1387-1811(02)00483-3
Yang, X.-Y., Chen, L.-H., Li, Y., Rooke, J.C., Sanchez, C., Su, B.-L.: Hierarchically porous materials: synthesis strategies and structure design. Chem. Soc. Rev. 46(2), 481–558 (2017). https://doi.org/10.1039/C6CS00829A
Wardani, A.R., Widiastuti, N.: Synthesis of zeolite-X supported on glasswool for CO2 capture material: variation of immersion time and NaOH concentration at glasswool activation. Indones. J. Chem. 16(1), 1–7 (2016). https://doi.org/10.22146/ijc.21169
Okada, K., Kuboyama, K.-I., Takei, T., Kameshima, Y., Yasumori, A., Yoshimura, M.: In situ zeolite Na–X coating on glass fibers by soft solution process. Microporous Mesoporous Mater. 37(1–2), 99–105 (2000). https://doi.org/10.1016/S1387-1811(99)00198-5
Yamazaki, S., Tsutsumi, K.: Synthesis of an A-type zeolite membrane on silicon oxide film-silicon, quartz plate and quartz fiber filter. Microporous Mater. 4(2–3), 205–212 (1995). https://doi.org/10.1016/0927-6513(95)00006-U
Okada, K., Shinkawa, H., Takei, T., Hayashi, S., Yasumori, A.: In-situ coating of zeolite Na-A on Al2O3-SiO2 glass fibers. J. Porous Mater. 5(2), 163–168 (1998). https://doi.org/10.1023/A:1009661925215
Langmuir, I.: The dissociation of hydrogen into atoms. J. Am. Chem. Soc. 34(7), 860–877 (1912). https://doi.org/10.1021/ja02208a003
Cooney, D.O.: Adsorption Design for Wastewater Treatment. CRC Press, Boca Raton (1998)
Raulino, G.S.C., Vidal, C.B., Lima, A.C.A., Melo, D.Q., Oliveira, J.T., Nascimento, R.F.: Treatment influence on green coconut shells for removal of metal ions: pilot-scale fixed-bed column. Environ. Technol. 35(14), 1711–1720 (2014). https://doi.org/10.1080/09593330.2014.880747
Sousa, F.W., Oliveira, A.G., Ribeiro, J.P., Rosa, M.F., Keukeleire, D., Nascimento, R.F.: Green coconut shells applied as adsorbent for removal of toxic metal ions using fixed-bed column technology. J. Environ. Manage. 91(8), 1634–1640 (2010). https://doi.org/10.1016/j.jenvman.2010.02.011
Ruthven, D.M.: Principles of Adsorption and Adsorption Processes. Wiley, New York (1984)
Dantas, T., Luna, F.T., Silva, I., Jr., Torres, A., De Azevedo, D., Rodrigues, A., Moreira, R.: Modeling of the fixed-bed adsorption of carbon dioxide and a carbon dioxide-nitrogen mixture on zeolite 13X. Braz. J. Chem. Eng. 28(3), 533–544 (2011). https://doi.org/10.1590/S0104-66322011000300018
Veloso, C.B., Silva, Á.N., Watanabe, T.T., Paes, J.F.B., de Luna, F.M.T., Cavalcante, C.L.: Scale inhibitor adsorption studies in rock sandstone type. Adsorption 20(8), 977–985 (2014). https://doi.org/10.1007/s10450-014-9643-7
Van Zee, G., Veenstra, R., De Graauw, J.: Axial dispersion in packed fiber beds. Chem. Eng. J. 58(3), 245–250 (1995). https://doi.org/10.1016/0923-0467(94)02894-X
Luna, F.M.T., Araújo, C.C., Veloso, C.B., Silva, I.J., Azevedo, D.C., Cavalcante, C.L.: Adsorption of naphthalene and pyrene from isooctane solutions on commercial activated carbons. Adsorption 17(6), 937–947 (2011). https://doi.org/10.1007/s10450-011-9372-0
Luna, F.M.T., Oliveira Filho, A.N., Araújo, C.C., Azevedo, D.C., Cavalcante, C.L., Jr.: Adsorption of polycyclic aromatic hydrocarbons from heavy naphthenic oil using commercial activated carbons. 2. Column adsorption studies. Ind. Eng. Chem. Res. 55(29), 8184–8190 (2016). https://doi.org/10.1021/acs.iecr.6b01492
Majchrzak-Kucęba, I.: A simple thermogravimetric method for the evaluation of the degree of fly ash conversion into zeolite material. J. Porous Mater. 20(2), 407–415 (2013). https://doi.org/10.1007/s10934-012-9610-1
Yoldi, M., Fuentes-Ordoñez, E., Korili, S., Gil, A.: Zeolite synthesis from industrial wastes. Microporous Mesoporous Mater. 287, 183–191 (2019). https://doi.org/10.1016/j.micromeso.2019.06.009
Ameh, A.E., Fatoba, O.O., Musyoka, N.M., Petrik, L.F.: Influence of aluminium source on the crystal structure and framework coordination of Al and Si in fly ash-based zeolite NaA. Powder Technol. 306, 17–25 (2017). https://doi.org/10.1016/j.powtec.2016.11.003
Musyoka, N.M., Petrik, L.F., Gitari, W.M., Balfour, G., Hums, E.: Optimization of hydrothermal synthesis of pure phase zeolite Na-P1 from South African coal fly ashes. J. Environ. Sci. Health Part A 47(3), 337–350 (2012). https://doi.org/10.1080/10934529.2012.645779
Iqbal, A., Sattar, H., Haider, R., Munir, S.: Synthesis and characterization of pure phase zeolite 4A from coal fly ash. J. Clean. Prod. 219, 258–267 (2019). https://doi.org/10.1016/j.jclepro.2019.02.066
Kuwahara, Y., Ohmichi, T., Mori, K., Katayama, I., Yamashita, H.: Synthesis of zeolite from steel slag and its application as a support of nano-sized TiO2 photocatalyst. J. Mater. Sci. 43(7), 2407–2410 (2008). https://doi.org/10.1007/s10853-007-2073-0
Lee, Y.-R., Soe, J.T., Zhang, S., Ahn, J.-W., Park, M.B., Ahn, W.-S.: Synthesis of nanoporous materials via recycling coal fly ash and other solid wastes: a mini review. Chem. Eng. J. 317, 821–843 (2017). https://doi.org/10.1016/j.cej.2017.02.124
Kirdeciler, S.K., Akata, B.: One pot fusion route for the synthesis of zeolite 4A using kaolin. Adv. Powder Technol. 31(10), 4336–4343 (2020). https://doi.org/10.1016/j.apt.2020.09.012
Breuer, R., Barsotti, L., Kelly, A.: Behavior of Silica in Sodium Aluminate Solutions, vol. 1. Interscience Publishers, New York (1963)
Liu, Q., Navrotsky, A.: Synthesis of nitrate sodalite: an in situ scanning calorimetric study. Geochim. Cosmochim. Acta 71(8), 2072–2078 (2007). https://doi.org/10.1016/j.gca.2007.01.011
Wu, Z., Xie, J., Liu, H., Chen, T., Cheng, P., Wang, C., Kong, D.: Preparation, characterization, and performance of 4A zeolite based on opal waste rock for removal of ammonium ion. Adsorpt. Sci. Technol. 36(9–10), 1700–1715 (2018). https://doi.org/10.1177/0263617418803012
Loiola, A., Andrade, J., Sasaki, J., Da Silva, L.: Structural analysis of zeolite NaA synthesized by a cost-effective hydrothermal method using kaolin and its use as water softener. J. Colloid Interface Sci. 367(1), 34–39 (2012). https://doi.org/10.1016/j.jcis.2010.11.026
Tabi, R.N., Agyemang, F.O., Mensah-Darkwa, K., Arthur, E.K., Gikunoo, E., Momade, F.: Zeolite synthesis and its application in water defluorination. Mater. Chem. Phys. 261, 124229 (2021). https://doi.org/10.1016/j.matchemphys.2021.124229
Zavareh, S., Farrokhzad, Z., Darvishi, F.: Modification of zeolite 4A for use as an adsorbent for glyphosate and as an antibacterial agent for water. Ecotoxicol. Environ. Saf. 155, 1–8 (2018). https://doi.org/10.1016/j.ecoenv.2018.02.043
Snyder, M.A., Tsapatsis, M.: Hierarchical nanomanufacturing: from shaped zeolite nanoparticles to high-performance separation membranes. Angew. Chem. Int. Ed. 46(40), 7560–7573 (2007). https://doi.org/10.1002/anie.200604910
Bessa, R.A., França, A.M.M., Pereira, A.L.S., Alexandre, N.P., Pérez-Page, M., Holmes, S.M., Nascimento, R.F., Rosa, M.F., Anderson, M.W., Loiola, A.R.: Hierarchical zeolite based on multiporous zeolite A and bacterial cellulose: an efficient adsorbent of Pb 2+. Microporous Mesoporous Mater. 312, 110752 (2021). https://doi.org/10.1016/j.micromeso.2020.110752
He, K., Chen, Y., Tang, Z., Hu, Y.: Removal of heavy metal ions from aqueous solution by zeolite synthesized from fly ash. Environ. Sci. Pollut. Res. 23(3), 2778–2788 (2016). https://doi.org/10.1007/s11356-015-5422-6
Mihaly-Cozmuta, L., Mihaly-Cozmuta, A., Peter, A., Nicula, C., Tutu, H., Silipas, D., Indrea, E.: Adsorption of heavy metal cations by Na-clinoptilolite: equilibrium and selectivity studies. J. Environ. Manage. 137, 69–80 (2014). https://doi.org/10.1016/j.jenvman.2014.02.007
Ok, Y.S., Yang, J.E., Zhang, Y.-S., Kim, S.-J., Chung, D.-Y.: Heavy metal adsorption by a formulated zeolite-Portland cement mixture. J. Hazard. Mater. 147(1–2), 91–96 (2007). https://doi.org/10.1016/j.jhazmat.2006.12.046
Usman, A.R.A.: The relative adsorption selectivities of Pb, Cu, Zn, Cd and Ni by soils developed on shale in New Valley. Egypt. Geoderma 144(1–2), 334–343 (2008). https://doi.org/10.1016/j.geoderma.2007.12.004
Xie, W.-M., Zhou, F.-P., Bi, X.-L., Chen, D.-D., Li, J., Sun, S.-Y., Liu, J.-Y., Chen, X.-Q.: Accelerated crystallization of magnetic 4A-zeolite synthesized from red mud for application in removal of mixed heavy metal ions. J. Hazard. Mater. 358, 441–449 (2018). https://doi.org/10.1016/j.jhazmat.2018.07.007
Marcus, Y.: A simple empirical model describing the thermodynamics of hydration of ions of widely varying charges, sizes, and shapes. Biophys. Chem. 51(2–3), 111–127 (1994). https://doi.org/10.1016/0301-4622(94)00051-4
Panayotova, M., Velikov, B.: Kinetics of heavy metal ions removal by use of natural zeolite. J. Environ. Sci. 37(2), 139–147 (2002). https://doi.org/10.1081/ESE-120002578
Olegario, E., Pelicano, C.M., Felizco, J.C., Mendoza, H.: Thermal stability and heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions uptake of the natural zeolites from the Philippines. Mater. Res. Express 6(8), 085204 (2019). https://doi.org/10.1088/2053-1591/ab1a73
Cabrera, C., Gabaldón, C., Marzal, P.: Sorption characteristics of heavy metal ions by a natural zeolite. J. Chem. Technol. Biotechnol. 80(4), 477–481 (2005). https://doi.org/10.1002/jctb.1189
Qiu, W., Zheng, Y.: Removal of lead, copper, nickel, cobalt, and zinc from water by a cancrinite-type zeolite synthesized from fly ash. Chem. Eng. J. 145(3), 483–488 (2009). https://doi.org/10.1016/j.cej.2008.05.001
Qiu, Q., Jiang, X., Lv, G., Chen, Z., Lu, S., Ni, M., Yan, J., Deng, X.: Adsorption of heavy metal ions using zeolite materials of municipal solid waste incineration fly ash modified by microwave-assisted hydrothermal treatment. Powder Technol. 335, 156–163 (2018). https://doi.org/10.1016/j.powtec.2018.05.003
Al-Jubouri, S.M., Holmes, S.M.: Immobilization of cobalt ions using hierarchically porous 4A zeolite-based carbon composites: Ion-exchange and solidification. J. Water Process Eng. 33, 101059 (2020). https://doi.org/10.1016/j.jwpe.2019.101059
Pratama, B.S., Hambali, E., Yani, M., Matsue, N.: Kinetic and isotherm studies of Cu (II) adsorption by beads and film of alginate/zeolite 4A composites. IOP Conf. Ser. Earth Environ. Sci. 1, 012013 (2021)
Xie, F., Lin, X., Wu, X., Xie, Z.: Solid phase extraction of lead (II), copper (II), cadmium (II) and nickel (II) using gallic acid-modified silica gel prior to determination by flame atomic absorption spectrometry. Talanta 74(4), 836–843 (2008). https://doi.org/10.1016/j.talanta.2007.07.018
Taamneh, Y., Sharadqah, S.: The removal of heavy metals from aqueous solution using natural Jordanian zeolite. Appl. Water Sci. 7(4), 2021–2028 (2017). https://doi.org/10.1007/s13201-016-0382-7
Elwakeel, K., El-Bindary, A., Kouta, E.: Retention of copper, cadmium and lead from water by Na-Y-Zeolite confined in methyl methacrylate shell. J. Environ. Chem. Eng. 5(4), 3698–3710 (2017). https://doi.org/10.1016/j.jece.2017.06.049
Pratti, L.M., Reis, G.M., dos Santos, F.S., Gonçalves, G.R., Freitas, J.C., de Pietre, M.K.: Effects of textural and chemical properties of β-zeolites on their performance as adsorbents for heavy metals removal. Environ. Earth Sci. 78(17), 1–14 (2019). https://doi.org/10.1007/s12665-019-8568-6
Du, X., Cui, S., Wang, Q., Han, Q., Liu, G., Energy, S.: Non-competitive and competitive adsorption of Zn (II), Cu (II), and Cd (II) by a granular Fe-Mn binary oxide in aqueous solution. Environ. Progress (2021). https://doi.org/10.1002/ep.13611
Hernández-Montoya, V., Pérez-Cruz, M.A., Mendoza-Castillo, D.I., Moreno-Virgen, M., Bonilla-Petriciolet, A.: Competitive adsorption of dyes and heavy metals on zeolitic structures. J. Environ. Manage. 116, 213–221 (2013). https://doi.org/10.1016/j.jenvman.2012.12.010
Jeon, C.-S., Park, S.-W., Baek, K., Yang, J.-S., Park, J.-G.: Application of iron-coated zeolites (ICZ) for mine drainage treatment. Korean J. Chem. Eng. 29(9), 1171–1177 (2012). https://doi.org/10.1007/s11814-012-0013-4
Nguyen, T.C., Loganathan, P., Nguyen, T.V., Vigneswaran, S., Kandasamy, J., Naidu, R.: Simultaneous adsorption of Cd, Cr, Cu, Pb, and Zn by an iron-coated Australian zeolite in batch and fixed-bed column studies. Chem. Eng. J. 270, 393–404 (2015). https://doi.org/10.1016/j.cej.2015.02.047
Ortiz, F.G., Aguilera, P., Ollero, P.: Modeling and simulation of the adsorption of biogas hydrogen sulfide on treated sewage–sludge. Chem. Eng. J. 253, 305–315 (2014). https://doi.org/10.1016/j.cej.2014.04.114
Aguilera, P., Ortiz, F.G.: Prediction of fixed-bed breakthrough curves for H2S adsorption from biogas: importance of axial dispersion for design. Chem. Eng. J. 289, 93–98 (2016). https://doi.org/10.1016/j.cej.2015.12.075
Acknowledgements
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001 (PROEX 23038.000509/2020-82). The authors also would like to thank to Laboratório de Raios-X and Professor José Marcos Sasaki for XRD analyses and Central Analítica- UFC for the SEM analysis (UFC/CT-INFRA/MCTI-SISNANO/Pró-equipamentos-CAPES).
Funding
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001 (PROEX 23038.000509/2020-82) and PDSE 88881.189392/2018-01).
Author information
Authors and Affiliations
Contributions
AMMF, ARL, RFN: Made substantial contributions to the conception or design of the work. AMMF: Drafted the work. AMMF, RAB, ESO, MVMN, FMTL, ARL, RFN: Approved the version to be published. AMMF, RAB, ESO, MVMN, FMTL, ARL, RFN: Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. AMMF, RAB, ESO, MVMN, FMTL, ARL, RFN: Acquisition, analysis, or interpretation of data. AMMF, RAB, ARL, RFN: Revised it critically for important intellectual content.
Corresponding author
Ethics declarations
Conflict of interest
The authors have no conflicts of interest to declare that are relevant to the content of this article.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
França, A.M.M., Bessa, R.A., Oliveira, E.S. et al. In-situ cost-effective synthesis of zeolite A in Al2O3–SiO2 glass fibers for fixed bed adsorption of Cu2+, Cd2+ and Pb2+. Adsorption 27, 1067–1080 (2021). https://doi.org/10.1007/s10450-021-00337-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10450-021-00337-5