title: Effect of template in MCM-41 on the adsorption of aniline from aqueous solution.
abstract: The effect of the surfactant template cetyltrimethylammonium bromide (CTAB) in MCM-41 on the adsorption of aniline was investigated. Various MCM-41 samples were prepared by controlling template removal using an extraction method. The samples were then used as adsorbents for the removal of aniline from aqueous solution. The results showed that the MCM-41 samples with the template partially removed (denoted as C-MCM-41) exhibited better adsorption performance than MCM-41 with the template completely removed (denoted as MCM-41). The reason for this difference may be that the C-MCM-41 samples had stronger hydrophobic properties and selectivity for aniline because of the presence of the template. The porosity and cationic sites generated by the template play an important role in the adsorption process. The optimal adsorbent with moderate template was achieved by changing the ratio of extractant; it has the potential for promising applications in the field of water pollution control.
authors.affiliation: Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Xinxin
authors.initials: X
authors.lastname: Yang
authors.forename: Qingxin
authors.initials: Q
authors.lastname: Guan
authors.forename: Wei
authors.initials: W
authors.lastname: Li
mesh_terms: D000327:Adsorption; D000814:Aniline Compounds / Q000302:isolation & purification*; D002273:Carcinogens / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D012822:Silicon Dioxide / Q000138:chemical synthesis*; D013696:Temperature; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: D000814:Aniline Compounds; D002273:Carcinogens; C509968:MCM-41; D014874:Water Pollutants, Chemical; D012822:Silicon Dioxide; C023650:aniline