Paper coated with sonochemically synthesized zinc oxide nanoparticles: Enhancement of properties for preservation of documents

Majumdar, Suchismita; Roy, Anirban; Nandi, Isita; Banerjee, Prantik; Banerjee, S.; Ghosh, Mahua; Chakrabarti, Sudipta

doi:10.32964/tj16.1.25

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…pH is one measure of paper’s stability, as it indicates the degradation of α-cellulose and affects the printing of paper. There is a standard requirement of neutral pH (7.0) for writing and printing papers (BISIS:1848, 2007) [ 30 ]. The results indicated that the PBA coating did not cause any immediate alteration of pH on the paper samples, statistically.…”

Section: Resultsmentioning

confidence: 99%

Antifungal Paper Based on a Polyborneolacrylate Coating

et al. 2018

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Paper documents and products are very susceptible to microbial contamination and damage. Fungi are mainly responsible for those biodeterioration processes. Traditional microbicidal strategies constitute a serious health risk even when microbes are dead. Ideal methods should not be toxic to humans and should have no adverse effects on paper, but should own a broad spectrum, good chemical stability and low cost. In this work, we utilize an advanced antimicrobial strategy of surface stereochemistry by applying a coating of a shallow layer of polyborneolacrylate (PBA), resulting in the desired antifungal performance. The PBA-coated paper is challenged with the most common air-borne fungi growing on paper, Aspergillus niger and Penicillium sp. Ten percent by weight of the coating concentration or a 19-μm infiltration of PBA is sufficient to keep the paper spotless. The PBA coating also exhibits significant inhibition of spores’ germination. After PBA coating, both physicochemical properties (paper whiteness, pH, mechanical strength) and inking performance display only slight changes, which are acceptable for general utilization. This PBA coating method is nontoxic, rapid and cost-effective, thus demonstrating great potential for applications in paper products.

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Section: Resultsmentioning

confidence: 99%

Antifungal Paper Based on a Polyborneolacrylate Coating

et al. 2018

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“…According to the results from ultrasonic treatments, in particular by the probe device, it is important to highlight the smaller structures obtained with a high degree of porosity since these cavities can serve as nanomaterials with a high surface reactivity, applied in antibacterial [84], photo remediation of heavy metals [85], inhibition of corrosion [86] or paper preservation [87].…”

Section: Ultrasonic Treatments -Tem Characterizationsmentioning

confidence: 99%

Controlled dispersion of ZnO nanoparticles produced by basic precipitation in solvothermal processes

Navas

Ibáñez

González

et al. 2020

Heliyon

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Zinc oxide nanoparticles were successfully synthesized under precipitation processes, using ZnSO 4 ⋅7H 2 O as a Zn 2þ precursor and K 2 CO 3 used as a basic source, and hydrozincite was obtained as an intermediary, which was treated under two procedures; first procedure involved multiple stages to get final precipitated with NaOH, and in the second procedure the hydrozincite was straightforwardly dried at 220 C. By both processes ZnO structures were obtained, which were turned into nanoparticles by a solvothermal treatment, for four hours in ethylene glycol at 200 C. The final products for the first procedure was conglomerate of spherical nanoparticles with sizes ranged between 5-10 nm and dispersed ellipsoidal nanoparticles for the second procedure.Apart off the two procedures mentioned above, another synthesis was carried out with the same Zn 2þ precursor but now using NaOH, and the solvothermal treatment produced ZnO mixed micro-structures which under ultrasonic cavitation disaggregated on mesoporous ZnO nanoplates of hexagonal shapes with nanopore sizes of approximately 0.35 nm. All ZnOs synthesized were structurally characterized with XRD, TEM and FT-IR techniques, and electronically with UV-Vis absorption and diffuse reflectance spectroscopies.

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