期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 131, 期 21, 页码 -出版社
WILEY
DOI: 10.1002/app.41029
关键词
adsorption; kinetics; resins; dyes/pigments
资金
- National Science Foundation of China [20607008, 21077048, 21277064]
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, China
- Analysis and Testing Foundation of Kunming University of Science and Technology [2010150]
- Chinese Ministry of Education [210202]
Resin was modified with ferrocene (Fc) to enhance removal of Methylene Blue (MB) and Cu2+ from simulated wastewater. The FTIR, N-2-BET, and X-ray fluorescence analysis confirmed that Fc was successfully grafted onto the surface of resin. The adsorption capacity of Fc modified cation exchange resin (FMCER) was calculated to be 392.16 mg/g Cu2+ and 10.01 mg/g MB. Both processes were spontaneous and exothermic, best described by Langmuir equation. Pseudo-first-order kinetic model satisfied the adsorption of MB, while the intraparticle-diffusion model fitted the kinetics of Cu2+ adsorption best. The result revealed a multilayer adsorption of Cu2+ on FMCER, and the kinetics maybe controlled by intraparticle diffusion, film diffusion, and competition force. The adsorption of MB and Cu2+ on FMCER were physicosorptive, with activation energies of 2.09 and 1.27 kJ/mol. pH 2-7 and 4-5 are optimum for the removal of MB and Cu2+, and pH 4 is optimal for the simultaneous removal of MB and Cu2+. (C) 2014 Wiley Periodicals, Inc.
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