Structural evolution of palygorskite for reinforcing the performance of polypropylene

Zhang, Hong; Wang, Wenbo; Xu, Jingyi; Lu, Yushen; Wang, Aiqin

doi:10.1080/09276440.2022.2061779

Cited by 1 publication

(2 citation statements)

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“…The advantage of using OA is that the soluble complex formed during the OA leaching process can be easily decomposed under microbial and photochemical action, which is more environmentally friendly than the waste solution formed during the inorganic acid leaching process, and more importantly, the unique nanorods of Pal were maintained during this process. On this basis, the reinforcing performance of OA gradient-leached RPal (OPal) has been evaluated. , However, it has not been reported whether the carrier property of RPal is affected by the OA gradient leaching process up to now.…”

Section: Introductionmentioning

confidence: 99%

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Structural Evolution of Palygorskite as the Nanocarrier of Silver Nanoparticles for Improving Antibacterial Activity

Zhang

Yang

Zhang

et al. 2022

ACS Appl. Bio Mater.

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The carrier performance of palygorskite (Pal) can be significantly affected by its structure, morphology, and activity, which was regulated by controlling the dissolution degree of the metal-oxygen octahedron of raw Pal (RPal) under the action of oxalic acid (OA) in this study. The RPal and OA-leached RPal (OPal) then served as supports for immobilizing silver nanoparticles (AgNPs) to form RPal/AgNPs and OPal/AgNPs antibacterial nanocomposites. The structural and morphological characterizations were used to confirm the dispersion uniformity of AgNPs on the RPal and OPal nanorods, and antibacterial experiments were conducted to evaluate the performance of as-prepared composites and also investigate their antibacterial mechanism. The results showed that OPal-48h (OA leaching for 48 h) loaded with AgNPs (OPal-48h/AgNPs) possesses the most excellent and broad-spectrum antibacterial properties, where its minimum inhibitory concentration values against E. coli, S. aureus, ESBL-E. coli, and MRSA reached 0.25, 0.125, 0.25, and 0.5 mg/mL, respectively, which are mainly attributed to the optimal balance between surface activity and structural stability of OPal-48h that maximally increased its dispersibility and active sites, therefore contributing to the in situ formation of monodisperse AgNPs on the nanorods of OPal-48h.

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Section: Introductionmentioning

confidence: 99%

“…On this basis, the reinforcing performance of OA gradient-leached RPal (OPal) has been evaluated. 23,24 However, it has not been reported whether the carrier property of RPal is affected by the OA gradient leaching process up to now.…”

Section: Introductionmentioning

confidence: 99%