Removal of diethyl phthalate from aqueous solution using magnetic iron–carbon composite prepared from waste anion exchange resin
作者： Qianqian Shi , Aimin Li , Qing Zhou , Chendong Shuang , Yan Li
DOI: 10.1016/J.JTICE.2014.05.004
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摘要: Abstract A magnetic iron–carbon composite with high surface area (2505.2 m 2 /g) was prepared from waste anion exchange resin by NaOH activation and then used as an adsorbent for the removal of diethyl phthalate aqueous solution. The results showed that mixed particles iron oxide(s) zero-valent sizes ranging 30 nm to 50 nm were dispersed on carbon layer. exhibited a ferromagnetic property at room temperature saturation magnetization 15.9 emu/g good stability pH values 4 11.5. presence reduced pore volume compared those pure activated carbon, but size distribution basis did not change. can effectively remove solutions, its adsorption capacity higher than two commercial carbons. kinetic data analyzed using different models fitted well pseudo-second-order model. Thermodynamic analysis indicated process spontaneous exothermic. equilibrium found follow Langmuir
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