PMID- 17118548 OWN - NLM STAT- MEDLINE DCOM- 20070830 LR - 20181201 IS - 0304-3894 (Print) IS - 0304-3894 (Linking) VI - 144 IP - 1-2 DP - 2007 Jun 1 TI - Analysis of adsorption characteristics of 2,4-dichlorophenol from aqueous solutions by activated carbon fiber. PG - 200-7 AB - In this study experiments were conducted to investigate the adsorption of 2,4-dichlorophenol (2,4-DCP) by activated carbon fiber (ACF) activated by static air. With the results of batch experiments at various temperatures, the adsorption isotherms, kinetics and thermodynamics of this adsorption process were evaluated. Four adsorption isotherm models, Langmuir, Freundlich, Redlich-Peterson and Toth equations, were used to fit the experimental data and the results reveal that the adsorption isotherm models fitted the data in the order of: Langmuir>Redlich-Peterson>Toth>Freundlich isotherms. A pseudo second-order adsorption model was better to describe the adsorption data than the pseudo first-order model and the Bangham model at the temperatures tested. The activation energy was calculated to be 40.90 kJ/mol, while the thermodynamic parameters DeltaH and DeltaS were estimated to be -5.82 kJ/mol and 0.07 kJ/(molK), respectively. FAU - Wang, Jian-Ping AU - Wang JP AD - Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, China. FAU - Feng, Hui-Min AU - Feng HM FAU - Yu, Han-Qing AU - Yu HQ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20061011 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Carbon Fiber) RN - 0 (Chlorophenols) RN - 0 (Solutions) RN - 0 (Water Pollutants, Chemical) RN - 7440-44-0 (Carbon) RN - 9002-89-5 (Polyvinyl Alcohol) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - Adsorption MH - Carbon/*chemistry MH - Carbon Fiber MH - Chlorophenols/*chemistry MH - Kinetics MH - Polyvinyl Alcohol/chemistry MH - Solutions MH - Thermodynamics MH - Water Pollutants, Chemical/*chemistry MH - Water Purification/*methods EDAT- 2006/11/23 09:00 MHDA- 2007/08/31 09:00 CRDT- 2006/11/23 09:00 PHST- 2006/06/07 00:00 [received] PHST- 2006/10/01 00:00 [revised] PHST- 2006/10/03 00:00 [accepted] PHST- 2006/11/23 09:00 [pubmed] PHST- 2007/08/31 09:00 [medline] PHST- 2006/11/23 09:00 [entrez] AID - S0304-3894(06)01204-0 [pii] AID - 10.1016/j.jhazmat.2006.10.003 [doi] PST - ppublish SO - J Hazard Mater. 2007 Jun 1;144(1-2):200-7. doi: 10.1016/j.jhazmat.2006.10.003. Epub 2006 Oct 11.