Nayak, D. Teja, et al. RSC Sustainability (2025).
Cellulose acetate (CA) was utilized as the base polymer for fabricating advanced composite membranes designed for the efficient separation of heavy metals from water. In this study, CA membranes were modified with amino acids (AAs) and ionic liquids (ILs) using the phase inversion technique to enhance their selectivity and metal-binding capabilities.
The membrane fabrication process began with the preparation of casting solutions in dimethylformamide (DMF). Specific amounts of AA, ILs, and AA-IL mixtures-at 0.5%, 1%, and 5% loading relative to CA-were first dispersed in DMF via ultrasonication for 1 hour to ensure uniform mixing. Following this, CA powder was added and stirred mechanically for 4 hours until complete dissolution. The resulting solution underwent an additional 30-minute ultrasonication step to achieve full dispersion of all components.
To form membranes, the homogeneous casting solution was degassed and then evenly cast onto a glass plate using a casting knife set at 400 μm thickness. The wet films were immediately immersed in a cold distilled water bath (10 °C) to initiate phase inversion, yielding solid membranes with controlled porosity and embedded functional agents.
These CA-based membranes demonstrated effective heavy metal separation capabilities, offering a promising strategy for sustainable water reclamation. The incorporation of AAs and ILs within the CA matrix significantly improved metal ion affinity, positioning this material as a viable solution for environmental remediation.
Wang, Qidong, et al. Materials Today Sustainability 28 (2024): 101025.
Cellulose acetate (CA) was employed as a key surface-modifying agent in the preparation of hydrophobic melamine foam (H-CA/MF), designed for efficient oily wastewater treatment. The preparation followed a simple, cost-effective, two-step strategy combining solution immersion and chemical vapor deposition (CVD).
First, CA powders were dissolved in dimethylformamide (DMF) at 90 °C under magnetic stirring to form homogeneous CA solutions with concentrations ranging from 10-50 mg/mL. Melamine foams (2.5 × 2.5 × 2.5 cm³) were pre-washed with ethanol, air-dried at 80 °C for 6 h, and then immersed in the CA solutions for 30 minutes. After drying at 80 °C for 5 h, a uniform CA coating was assembled on the foam skeleton (CA/MF), enhancing the material's structural integrity and functional reactivity. A concentration of 20 mg/mL CA was found optimal.
The CA/MF composites were then subjected to CVD modification using methyltrimethoxysilane (MTMS). The CA-coated foams were placed in a sealed beaker with 1 mL each of MTMS and deionized water, followed by heating at 80 °C for 5 h. During this step, Si-OH groups from hydrolyzed MTMS reacted with C-OH groups on the CA via condensation, forming hydrophobic Si-O-C linkages. Post-treatment under vacuum for 6 h ensured removal of residual MTMS.
The resulting H-CA/MF exhibited strong hydrophobicity and excellent oil adsorption, highlighting CA's pivotal role in fabricating porous materials for environmental remediation.
Ablouh, El-Houssaine, et al. Journal of Environmental Chemical Engineering 13.1 (2025): 115077.
In this study, cellulose acetate (CA) was employed as a polymeric support for the synthesis of Cu₂O-Cu nanoparticles (Cu₂O-CuNPs) through a straightforward in situ reduction process.
The experimental procedure began by dissolving 1 g of cellulose acetate in a 1 M aqueous solution of copper (II) nitrate. The mixture was stirred for 15 minutes to promote coordination between Cu²⁺ ions and the functional groups on the CA matrix.
Subsequently, 0.5 mL of freshly prepared sodium borohydride (NaBH₄) solution was added dropwise over 60 minutes under continuous stirring. This step induced the gradual reduction of copper ions, leading to the formation of Cu₂O and Cu nanoparticles embedded within the CA polymer network. After completion of the reduction, the solid product was collected by filtration and washed thoroughly with distilled water to remove unreacted species and byproducts.
The resulting Cu₂O-CuNPs-CA nanocomposite was then dried at 60 °C overnight to yield a stable, free-flowing powder.
This method demonstrates the efficiency of cellulose acetate not only as a stabilizing support for nanoparticle formation but also as a facilitator for uniform dispersion within the matrix. The synthesized nanocomposite was subsequently applied as a catalyst for the reduction of 4-nitrophenol to 4-aminophenol, showcasing its practical utility in aqueous catalytic systems.
What is the PubChem CID of cellulose acetate?
The PubChem CID of cellulose acetate is 57469.
What is the molecular formula of cellulose acetate?
The molecular formula of cellulose acetate is C14H16N4.
What is the molecular weight of cellulose acetate?
The molecular weight of cellulose acetate is 240.30 g/mol.
What is the IUPAC name of cellulose acetate?
The IUPAC name of cellulose acetate is 1-(2-methylpropyl)imidazo[4,5-c]quinolin-4-amine.
What is the InChIKey of cellulose acetate?
The InChIKey of cellulose acetate is DOUYETYNHWVLEO-UHFFFAOYSA-N.
What are the synonyms of cellulose acetate?
Some synonyms of cellulose acetate include IMIQUIMOD, Aldara, and Zyclara.
What is the CAS number of cellulose acetate?
The CAS number of cellulose acetate is 99011-02-6.
What is the ChEMBL ID of cellulose acetate?
The ChEMBL ID of cellulose acetate is CHEMBL1282.
What is the UNII of cellulose acetate?
The UNII of cellulose acetate is P1QW714R7M.
What is the Wikipedia page for cellulose acetate?
The Wikipedia page for cellulose acetate is "Imiquimod".
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