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- Title
Preparation of ZnO-cellulose nanocomposites by different cellulose solution systems with a colloid mill.
- Authors
Ma, Jinxia; Sun, Zhaochuang; Wang, Zhiguo; Zhou, Xiaofan
- Abstract
In this work, a novel means of producing zinc oxide (ZnO)-cellulose nanocomposites was developed. ZnO-cellulose nanocomposites were prepared by mixing a cellulose zinc chloride (ZnCl) aqueous solution with a cellulose NaOH/urea aqueous solution in a colloid mill at room temperature. Solutions as high as 65 wt% ZnCl were considered for use as a concentrated zinc source. Nano-ZnO particles were obtained when the generated ZnO-cellulose nanocomposite was calcined at 575 °C. The properties of the ZnO-cellulose nanocomposite were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectra, UV-Vis spectroscopy, and photoluminescence (PL). The results indicated that the sizes of ZnO-cellulose nanocomposite were 30-50 nm. The concentration of cellulose in the dissolution system had an obvious effect on the sizes and shapes of the ZnO particles. The size of the ZnO-cellulose nanocomposites and nano-ZnO particles decreased and the shapes of the nano-ZnO changed from rods with a diameter of approximately 40 nm and length of 110 nm to spheroids with a diameter of approximately 40-45 nm as the cellulose concentration increased. In addition, UV absorption and photoluminescence were observed from the ZnO-cellulose nanocomposite.
- Subjects
ZINC oxide; CELLULOSE nanocrystals; CELLULOSE synthase; COLLOIDAL crystals; ZINC chloride; X-ray diffraction
- Publication
Cellulose, 2016, Vol 23, Issue 6, p3703
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-016-1081-0