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. 2022 Oct 23;14(21):4485.
doi: 10.3390/polym14214485.

Preparation of Isopropyl Acrylamide Grafted Chitosan and Carbon Bionanocomposites for Adsorption of Lead Ion and Methylene Blue

Mahmoud Essam Abd El-Aziz  1 , Samir M M Morsi  1 , Kholod H Kamal  2 , Tawfik A Khattab  3
Affiliations

Preparation of Isopropyl Acrylamide Grafted Chitosan and Carbon Bionanocomposites for Adsorption of Lead Ion and Methylene Blue

Mahmoud Essam Abd El-Aziz et al. Polymers (Basel). .

Abstract

Wastewater, which is rich with heavy elements, dyes, and pesticides, represents one of the most important environmental pollutants. Thus, it has been significant to fabricate environmentally friendly polymers with high adsorption ability for those pollutants. Herein, crosslinked chitosan (C-Cs) was prepared using isopropyl acrylamide and methylene bisacrylamide. Carbon nanoparticles (C-NPs) were also obtained by the treatment of the agricultural wastes, which was used with C-Cs to prepare C-Cs/C-NPs nanocomposite (C-Cs/C-NC). Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and transmission electron microscope (TEM) were used to investigate the prepared adsorbent. C-Cs, C-NPs, and C-Cs/C-NC were used in water treatment for the adsorption of lead ions (Pb+2) and methylene blue (MB). The adsorption process occurred by the prepared samples was investigated under different conditions, including contact time, as well as different doses and concentrations of adsorbents. The findings exhibited that the adsorption of Pb+2 and MB by C-Cs/C-NC was higher than C-Cs and C-NPs. In addition, the kinetic and isotherm models were studied, where the results showed that the adsorption of Pb+2 and MB by various adsorbents obeys pseudo-second-order and Langmuir isotherms, respectively.

Keywords: carbon nanoparticle; crosslinked chitosan; nanocomposite; water treatment.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
TEM (a) and SEM (b) of the prepared C-NPs.
Figure 2
Figure 2
SEM image of C-Cs (a) and C-Cs/C-NC (b).
Figure 3
Figure 3
XRD patterns of C-NPs, C-Cs, and C-Cs/C-NC.
Figure 3
Figure 3
XRD patterns of C-NPs, C-Cs, and C-Cs/C-NC.
Figure 4
Figure 4
FTIR of C-Cs, C-NPs, and C-Cs/C-NC.
Figure 5
Figure 5
Adsorption–desorption isotherm models of N2 at 77 K on prepared samples.
Figure 6
Figure 6
Effect of concentration, contact time, and adsorbent dose on removal percentage for Pb+2 (a–c, respectively) as well as MB (d–f, respectively).
Figure 7
Figure 7
Pseudo-second-order fitting model (a–c) and Langmuir isothermal fitting model (d–f) of the removal of lead ions using C-Cs, C-NPs, and C-Cs/C-NC, respectively.
Figure 8
Figure 8
Pseudo-second-order fitting model (a–c) and Langmuir isothermal fitting model (d–f) of the removal of MB using C-Cs, C-NPs, and C-Cs/C-NC, respectively.
See this image and copyright information in PMC

References

    1. Ahuja S. Chapter One—Overview: Sustaining Water, the World’s Most Crucial Resource. In: Ahuja S., editor. Chemistry and Water. Elsevier; Amsterdam, The Netherlands: 2017. pp. 1–22.
    1. Teixeira F.J., Gomes C.S. Minerals Latu Sensu and Human Health. Springer; Cham, Switzerland: 2021. Mineral Water: Essential to Life, Health, and Wellness; pp. 517–556.
    1. Ives J.D., Shrestha R.B., Mool P.K. Formation of Glacial Lakes in the Hindu Kush-Himalayas and GLOF Risk Assessment. ICIMOD Kathmandu; Lalitpur, Nepal: 2010.
    1. Rehman A.U., Nazir S., Irshad R., Tahir K., ur Rehman K., Islam R.U., Wahab Z. Toxicity of heavy metals in plants and animals and their uptake by magnetic iron oxide nanoparticles. J. Mol. Liq. 2021;321:114455. doi: 10.1016/j.molliq.2020.114455. - DOI
    1. Okereafor U., Makhatha M., Mekuto L., Uche-Okereafor N., Sebola T., Mavumengwana V. Toxic metal implications on agricultural soils, plants, animals, aquatic life and human health. Int. J. Environ. Res. Public Health. 2020;17:2204. doi: 10.3390/ijerph17072204. - DOI - PMC - PubMed

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