期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 324, 期 -, 页码 329-339出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2016.10.066
关键词
ZnO rods; Activated carbon fiber; Tetracycline; Adsorption; Photodegradation
资金
- Research Funds of the University of Ulsan, Ulsan, Korea
- National Research Foundation of Korea [22A20130011030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
New composite materials of activated carbon fiber (ACF) coated with zinc oxide (ZnO) were obtained by applying a green, cost-effective and rapid synthetic route using.a commercial microwave oven. ZnO rods with a uniform and stable structure and an average diameter of 0.3-0.5 pm and length of 1.0-1.5 pm were achieved after only 3-min microwave treatment. The properties of ZnO were efficiently transferred to ACF, such that the resulting material, termed ZnO rod-ACF, demonstrated a promising potential as an efficient photocatalyst and simultaneously as an adsorbent. Pharmaceutical tetracycline at a concentration of 40 mg/L was used to evaluate the organic pollutant removal capacity of the synthesized materials. At pH 8, ZnO rod-ACF exhibited excellent removal capacity (over 99%) and mineralization (90.7%) of tetracycline in aqueous solution within 1 h under IN irradiation. The stability of ZnO rod-ACF was maintained and the mineralization of tetracycline was also maintained at 81.35% after multiple usage cycles. The photodegradation pathways of tetracycline were proposed based on the identified reaction intermediates. (C) 2016 Elsevier B.V. All rights reserved.
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