Recoverable cellulose composite adsorbents for anionic/cationic dyes removal

Xu, Airong; Gong, Yiming; Sun, Qingqing; Li, Liuzemu; Wang, Fen; Xiao, Zhihong; Liu, Rukuan

doi:10.1016/j.ijbiomac.2023.124022

Cited by 12 publications

(3 citation statements)

References 73 publications

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“…Since the reusability of the composite nanomaterials is a key factor for economic efficiency in practical applications, − the stability of the MFZ was evaluated by six recycling experiments. Specifically, the used MFZ was recovered by an external magnetic field, rinsed three times with deionized water, and applied to the next water treatment.…”

Section: Resultsmentioning

confidence: 99%

Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Xu,

Ou,

et al. 2024

ACS Appl. Nano Mater.

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Due to the complexity of the actual polluted water components, the development of efficient and economical multifunctional materials has great significance and value in the remediation of polluted water. In this study, we have employed MoS 2 nanosheets as a carrier to sequentially load magnetic Fe 3 O 4 and ZnO nanoparticles via the electrostatic interaction, yielding a three-in-one MoS 2 /Fe 3 O 4 /ZnO (MFZ) composite nanosheet. The prepared MFZ could catalyze the conversion of H 2 O 2 into hydroxyl radicals ( • OH), induce intracellular oxidative stress in situ by nanosized ZnO or Zn 2+ , and produce photonic hyperpyrexia to promote the catalytic generation of • OH. In vitro antibacterial assays demonstrated that MFZ had high-performance multimodal elimination against Escherichia coli and Staphylococcus aureus in the presence of H 2 O 2 and an 808 nm laser. Moreover, MFZ could also catalyze the rapid degradation of organic pollutants in water including tetracycline (TC), methylene blue (MB), Congo red (CR), methyl orange (MO), and rhodamine B (RhB), which was mainly attributed to the strong oxidization of • OH. Not surprisingly, MFZ displayed satisfactory capacity for killing pathogenic bacteria and removing organic pollutants in real polluted water samples, and importantly, the MFZ could be efficiently recovered by applying an external magnetic field. Therefore, the magnetically recoverable MFZ composite nanomaterial proposed in this work is a versatile and sustainable alternative for future water disinfection and purification.

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Section: Resultsmentioning

confidence: 99%

Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Xu,

Ou,

et al. 2024

ACS Appl. Nano Mater.

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“…The following supporting information can be downloaded at: https: //www.mdpi.com/article/10.3390/molecules29071493/s1, Figure S1 S1: The Zeta potential of POMOF (1, 2) powder and POMOF1/PAN NFM in different dye water solvents, Table S2: Specific surface area, pore size, and pore capacity of POMOF1/PAN NFM of different proportions, Table S3: Removal efficiency of RhB, MB, and CV by different materials. References [55][56][57][58][59][60][61][62][63][64][65][66][67][68] are cited in the Supplementary Materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Li,

Yu,

Zhang

et al. 2024

Molecules

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Developing high−efficiency membrane materials for the rapid removal of organic dyes is crucial but remains a challenge. Polyoxometalates (POMs) clusters with anionic structures are promising candidates for the removal of cationic dyes via electrostatic interactions. However, their shortcomings, such as their solubility and inability to be mass−produced, hinder their application in water pollution treatment. Here, we propose a simple and green strategy utilizing the room temperature stirring method to mass produce nanoscale polyoxometalate−based metal−organic frameworks (POMOFs) with porous rhomboid−shaped dodecahedral and hexagonal prism structures. The products were labeled as POMOF1 (POMOF-PW12) and POMOF2 (POMOF-PMo12). Subsequently, a series of x wt% POMOF1/PAN (x = 0, 3, 5, and 10) nanofiber membranes (NFMs) were prepared using electrospinning technology, where polyacrylonitrile (PAN) acts as a “glue” molecule facilitating the bonding of POMOF1 nanoparticles. The as−prepared samples were comprehensively characterized and exhibited obvious water stability, as well as rapid selective adsorption filtration performance towards cationic dyes. The 5 wt% POMOF1/PAN NFM possessed the highest removal efficiency of 96.7% for RhB, 95.8% for MB, and 86.4% for CV dyes, which realized the selective separation over 95% of positively charged dyes from the mixed solution. The adsorption mechanism was explained using FT−IR, SEM, Zeta potential, and adsorption kinetics model, which proved that separation was determined via electrostatic interaction, hydrogen bonding, and π–π interactions. Moreover, the POMOF1/PAN membrane presented an outstanding recoverable and stable removal rate after four cycles. This study provides a new direction for the systematic design and manufacture of membrane separation materials with outstanding properties for contaminant removal.

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“…[1][2][3] It possesses wide applications in industrial production and our daily life, such as food packaging, auto parts, coatings, and biomedical equipment. [4][5][6][7][8][9] The PO-TPEs are composed of crystalline and amorphous phases. The crystalline phase consists of crystalline chain segments with a high melting temperature (T m ), which provide physical cross-linking domains for enhancement in tensile strength.…”

Section: Introductionmentioning

confidence: 99%

Ionic crosslinked polypropylene-based thermoplastic elastomers with excellent mechanical properties

Mao,

Wang,

Pan

et al. 2024

Polym. Chem.

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Recoverable cellulose composite adsorbents for anionic/cationic dyes removal

Cited by 12 publications

References 73 publications

Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Ionic crosslinked polypropylene-based thermoplastic elastomers with excellent mechanical properties

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Recoverable cellulose composite adsorbents for anionic/cationic dyes removal

Cited by 12 publications

References 73 publications

Magnetically Recoverable Multifunctional MoS2 Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Magnetically Recoverable Multifunctional MoS2 Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Ionic crosslinked polypropylene-based thermoplastic elastomers with excellent mechanical properties

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Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency

Magnetically Recoverable Multifunctional MoS₂ Composite Nanosheets for Water Disinfection and Purification with High Efficiency