Journal
CHEMICAL ENGINEERING JOURNAL
Volume 375, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.122003
Keywords
Activated carbon; Zeolitic imidazolate frameworks; Adsorption; Oxidative degradation; Rhodamine B
Categories
Funding
- National Natural Science Foundation of China [21606252]
- National key R&D program of China [2016YFE0102500]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Activated carbon is one of the most commonly used adsorbent and catalyst carrier material. However, its performance for removal of organic compounds from water is relatively poor. In this work, trace amount of Zeolitic Imidazolate Framework-67 (ZIF-67) was loaded onto commercial activated carbon (AC) pellets and subsequently calcined at 800 degrees C for 6 h. The obtained material (cal-ZIF-67/AC) showed highly dispersed Co and N on its surface and its specific surface area was as high as original activated carbon. Besides, it also exhibited weak magnetic property. The cal-ZIF-67/AC was further used as adsorbent for Rhodamine B (RhB) removal and as catalyst to activate peroxymonosulfate (PMS) for RhB degradation. It was found that cal-ZIF-67/AC exhibited good adsorption performances for RhB, with a maximum adsorption capacity of 46.2 mg/g, which is more than twice that of AC. Besides, it showed high activity in effective activation of peroxymonosulfate (PMS) to produce sulfate radicals for oxidative degradation of RhB.
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