期刊
INTEGRATED FERROELECTRICS
卷 137, 期 -, 页码 18-29出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10584587.2012.687251
关键词
Magnesium oxide; PEG400; parachlorophenol; adsorption kinetic; adsorption isotherm; thermodynamic
资金
- National Natural Science Foundation of China [41173092]
- China Postdoctoral Science Foundation project [20090460998]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- State Education Ministry [2010-609]
- Fundamental Research Funds for the Central Universities [2011-IV-098]
Porous MgO with variable morphologies were synthesized via a simple hydrothermal route using urea as precipitating agent and polyethylene glycol (PEG400) as structure-directing agent. The morphology and microstructure of the MgO samples obtained were characterized by X-ray diffraction, scanning electron microscopy and nitrogen adsorption-desorption isotherms analysis. The porous MgO exhibited strong affinity towards parachlorophenol with maximum adsorption capacity of 141.8 mg/g. Adsorption experiment data can be described by pseudo-second-order kinetic model. Thermodynamic parameters revealed the adsorption process was non-spontaneous and exothermic in nature. The as-prepared MgO is found to be effective adsorbent for the removal of parachlorophenol from water.
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