Journal
LANGMUIR
Volume 32, Issue 39, Pages 9922-9929Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.6b02258
Keywords
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Funding
- National Natural Science Foundation of China [21377096, 51372041, 51422202, 21673048]
- State Key Laboratory of Pollution Control and Resource Reuse Foundation [PCRRK16009]
- Shanghai Committee of Science and Technology [14ZR1400600]
- Shu Guang Project of Shanghai Municipal Education Commission [13SG02]
- Shanghai Municipal Science and Technology Commission [13140902401, 14JC1400700]
- National Youth Top-Notch Talent Support Program in China
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A gradient pyrolysis approach has been adopted for synthesis of ordered mesoporous carbonaceous materials with different surface and textural properties for removal of hexachlorobenzene. The resultant ordered mesoporous carbonaceous materials possess high surface areas (364-888 m(2)/g), large pore volumes (0.23-0.47 cm(3)/g), uniform pore sizes (2.6-3.8 nm), and tunable hydrophobic properties. They show high-efficiency removal performances for hexachlorobenzene with high adsorption capacity of 594.2-992.1 mu g/g. An enhanced removal rate (>99%) can be obtained with the increasing pyrolysis temperature (900 degrees C) as a result of the strong hydrophobic hydrophobic interaction between the carbon framework and hexachlorobenzene molecules. Furthermore, the adsorption behaviors follow the Sips isotherm model and obey the pseudo-first order kinetic model.
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