期刊
CELLULOSE
卷 23, 期 3, 页码 1871-1884出版社
SPRINGER
DOI: 10.1007/s10570-016-0907-0
关键词
Spherical cellulose nanocrystals; Zinc oxide nanorod clusters; Nanohybrids; Antibacterial activity; Photocatalytic activity
资金
- National Natural Science Foundation of China [51403187]
- public technology research plan of Zhejiang Province, China [2015C33111]
- 521'' Talent Project of Zhejiang Sci-Tech University
- Open Fund in Top Priority Discipline of Zhejiang Province in Zhejiang Sci-Tech University [2015YXQN04]
A facile chemical precipitation approach is presented to fabricate flower-like zinc oxide (ZnO) nanorod clusters by using spherical cellulose nanocrystals (SCNs, with cellulose II crystal structure) as growth substrate. Field-emission scanning electron microscopy results showed that nanohybrids (A-100/11) with flower-like ZnO nanorod clusters could be formed under strongly alkaline (pH 11) conditions using suitable reaction time of 2 h and temperature of 100 A degrees C, while rod-like nanohybrids could be obtained under weakly alkaline (pH 9.3 and 10.5) conditions or low temperature of 90 A degrees C. A possible growth mechanism for flower-like ZnO on SCNs is discussed. Moreover, compared with commercial ZnO and rod-like nanohybrids, the flower-like A-100/11 nanohybrids showed better antibacterial activity against Streptococcus aureus and Escherichia coli, and excellent photocatalytic activity in presence of methylene blue as model dye.
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