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A Novel Cellulose-Based Composite Hydrogel Microsphere Material: for Efficient Adsorption of Co(II) and Ni(II) Ions in Water.

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Title: A Novel Cellulose-Based Composite Hydrogel Microsphere Material: for Efficient Adsorption of Co(II) and Ni(II) Ions in Water.
Authors: Zhao, Jingru1,2,3 (AUTHOR), Wei, Zifei1,2,3 (AUTHOR), Sun, Linan1,2,3 (AUTHOR), Wang, Ying1,2,3 (AUTHOR), Wu, Xiaodan1,2,3 (AUTHOR), Wang, Tao1,2,3 (AUTHOR), Wang, Zihan1,2,3 (AUTHOR), Fu, Yujie4 (AUTHOR) yujie_fu@163.com
Source: Journal of Inorganic & Organometallic Polymers & Materials. Feb2025, Vol. 35 Issue 2, p898-918. 21p.
Subjects: Chemical engineering, Physical & theoretical chemistry, Langmuir isotherms, Fourier transform infrared spectroscopy, Sodium alginate
Abstract: Heavy metal ions contain highly toxic and non-biodegradable wastewater pollutants seriously contaminating the environment and affecting human health. Removal of heavy metal ions from the environment is a vital step towards the elimination of water pollution on a global scale. Therefore, in this study, cellulose was modified with L-cysteine, sodium alginate and polyethyleneimine to produce cellulose/sodium alginate /polyethyleneimine/L-cysteine composite hydrogel microspheres (WCMs/SA/PEI/L-Cys) in order to efficiently adsorb heavy metal ions. Co(II) and Ni(II) are successfully removed from water. After their production, the sorbents underwent examination using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and Scanning electron microscopy (SEM). In addition, the investigation of the mechanism and adsorption characteristics of cellulose-modified gel microspheres WCMs/SA/PEI/L-Cys has been completed. The majority of the adsorption of contaminants by cellulose-modified gel microspheres WCMs/SA/PEI/L-Cys adhered to the Langmuir isothermal adsorption model and quasi-secondary kinetic model. The intra-particle diffusion model was adopted for improving the fitting of the adsorption process in the materials. It was indicated that the internal and external diffusion acted together to eliminate the contaminants from the materials. When exploring the decontamination mechanism of the materials using XPS, it was shown that the functional groups containing nitrogen, oxygen and sulfur play a key role in removing contaminants. For Co(II) and Ni(II), the highest adsorption capacities of the sorbent were 358 and 373 mg/g, respectively. The material exhibited robust stability and recyclability based on the regeneration experiment results, remaining stable after six adsorption cycles and retaining over 80% of the initial adsorption amount. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Inorganic & Organometallic Polymers & Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A Novel Cellulose-Based Composite Hydrogel Microsphere Material: for Efficient Adsorption of Co(II) and Ni(II) Ions in Water.
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  Data: <searchLink fieldCode="DE" term="%22Chemical+engineering%22">Chemical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Langmuir+isotherms%22">Langmuir isotherms</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+alginate%22">Sodium alginate</searchLink>
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  Data: Heavy metal ions contain highly toxic and non-biodegradable wastewater pollutants seriously contaminating the environment and affecting human health. Removal of heavy metal ions from the environment is a vital step towards the elimination of water pollution on a global scale. Therefore, in this study, cellulose was modified with L-cysteine, sodium alginate and polyethyleneimine to produce cellulose/sodium alginate /polyethyleneimine/L-cysteine composite hydrogel microspheres (WCMs/SA/PEI/L-Cys) in order to efficiently adsorb heavy metal ions. Co(II) and Ni(II) are successfully removed from water. After their production, the sorbents underwent examination using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and Scanning electron microscopy (SEM). In addition, the investigation of the mechanism and adsorption characteristics of cellulose-modified gel microspheres WCMs/SA/PEI/L-Cys has been completed. The majority of the adsorption of contaminants by cellulose-modified gel microspheres WCMs/SA/PEI/L-Cys adhered to the Langmuir isothermal adsorption model and quasi-secondary kinetic model. The intra-particle diffusion model was adopted for improving the fitting of the adsorption process in the materials. It was indicated that the internal and external diffusion acted together to eliminate the contaminants from the materials. When exploring the decontamination mechanism of the materials using XPS, it was shown that the functional groups containing nitrogen, oxygen and sulfur play a key role in removing contaminants. For Co(II) and Ni(II), the highest adsorption capacities of the sorbent were 358 and 373 mg/g, respectively. The material exhibited robust stability and recyclability based on the regeneration experiment results, remaining stable after six adsorption cycles and retaining over 80% of the initial adsorption amount. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Inorganic & Organometallic Polymers & Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10904-024-03323-w
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        Text: English
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      – SubjectFull: Langmuir isotherms
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      – SubjectFull: Fourier transform infrared spectroscopy
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      – TitleFull: A Novel Cellulose-Based Composite Hydrogel Microsphere Material: for Efficient Adsorption of Co(II) and Ni(II) Ions in Water.
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              Text: Feb2025
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              Y: 2025
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