ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

One pot and green ultrasonic catalytic synthesis of catenated nanocellulose by sodium 30-tungston pentaphosphate polyoxometalate as an interlocked surface stabilizer and its application for surface loading of l-ascorbic acid

Sara Saneinezhad, Fatemeh F. Bamoharram, Mehdi Pordel, and Javad Baharara

Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran

E-mail: saneinezhad@yahoo.com

Received: 1 January 2020  Accepted: 25 July 2020

Abstract:

Among different biopolymers, cellulose being the first abundant biopolymers in nature has many fascinating properties, including low cost, good biodegradability, and excellent biocompatibility, which made cellulose a real potential material to create nano-drug delivery systems. Regarding, emphasis of science and technology shifts toward environmentally friendly and sustainable resources and processes, herein, we report a facile, one pot and green synthesis of the catenated assemblies of cellulose nanoparticles (CNPs) via acidic catalysis in the presence of preyssler heteropolyacid. This fast, green, and high-yield catalytic synthesis reduces the time of reaction to 15 min using low-intensity ultrasonic waves of 150 W. CNPs were characterized by transmission electron microscopy, scanning electron microscopy, particle size distribution analysis, Fourier-transformed infrared spectroscopy, X-ray diffraction, and atomic force microscopy. The results showed that catenated CNPs exhibit spherical-like structures with widths and lengths of 35–40 and 50–150 nm, respectively. The CNPs showed a surface charge of −35.2 mV, which allows obtaining a stable colloidal suspension. Moreover, cellulose nanoparticles loaded with ascorbic acid (CNPs/AA) were engineered and ascorbic acid could be released from the CNPs/AA in a controlled manner for 1 h.

Keywords: Ultrasonic synthesis; Catenated cellulose; Preyssler; Heteropolyacid; Ascorbic acid; Nanoparticles

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01296-x

Chemical Papers 75 (2) 471–483 (2021)