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Cellulose-based hydrogel beads derived from wastepapers: application for organic dye adsorption

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Abstract

Some adsorbent hydrogels made of natural polymeric materials have not yet met the needs for a high level of wastewater purification. In the present study, a novel and environmentally friendly process is described for the production of natural cellulose-based metal oxide nanoparticle hydrogel beads. Recyclable adsorbent components include wastepaper-derived cellulose fiber, metal oxide nanoparticles and polyvinyl alcohol was synthesized, the WCF/PVA MO NP hydrogel beads were synthesized by using cross-linking agents (Ca2+, boric acid and NaCl), and were analyzed by evaluating their ability to remove the acid red 18 (AR18) from aqueous solution. The WCF/PVA MO NP was characterized by FESEM, XRD, EDX, BET, and FTIR. The results revealed that the metal oxide nanoparticles distributed on external and internal channels of the 3D fiber network of WCF with strongly covalent/non-covalent cross-linking bonds would facilitate mass diffusion and enhance the interaction between AR18. The results shown that more than 87.62% of AR18 was removed and adsorption capacity was 88.65 mg·g−1 under optimized conditions ([AR18]: 10 mg·L−1; [adsorbent]: 0.55 g·L−1; pH: 3; Time: 46 min). Results shown that the adsorption kinetics fit the pseudo-second-order model (0.99), and the adsorption isotherms fitted to Langmuir isotherm model (0.99).

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Acknowledgments

The authors would like to gratefully acknowledge the financial support provided by the Tehran University of Medical Sciences.

Funding

Research reported in this publication was supported by Elite Researcher Grant Committee under award number [46988] from Tehran University of Medical Sciences (TUMS), Tehran, Iran.

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Authors and Affiliations

  1. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Floor Number 5, Ghods Avenue, Enghelab Street, Enghelab Square, Tehran, P.O. Box 14155-6446, Iran

    Mohammad Rezvani Ghalhari, Ramin Nabizadeh & Amir Hossein Mahvi

  2. Student’s Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran

    Mohammad Rezvani Ghalhari

  3. Department of Environmental Health Engineering, Faculty of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Daryoush Sanaei

  4. Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran

    Ramin Nabizadeh

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  1. Mohammad Rezvani Ghalhari
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Contributions

MRG: Conceptualization, Methodology, Validation, Writing—original draft, Writing—review and editing. DS: Conceptualization, Methodology, review and editing, Writing—original draft. RN: Methodology, Conceptualization, Visualization, Validation. AHM: Conceptualization, Methodology, review and editing, Writing—original draft, Supervision, Project administration.

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Correspondence to Amir Hossein Mahvi.

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Ghalhari, M.R., Sanaei, D., Nabizadeh, R. et al. Cellulose-based hydrogel beads derived from wastepapers: application for organic dye adsorption. Cellulose 30, 9669–9691 (2023). https://doi.org/10.1007/s10570-023-05467-3

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