title: Swift adsorptive removal of Congo red from aqueous solution by K1.33Mn8O16 nanowires.
abstract: A swift and efficient approach to converting organic dye effluents into fresh water could be of substantial benefit. In this study, we presented facile hydrothermal synthesis of K1.33Mn8O16 nanowires in ammonium fluoride (NH4F) aqueous solution. The crystallization process of K1.33Mn8O16 nanowires was investigated. The as-obtained K1.33Mn8O16 nanowires were used for swift adsorptive removal of Congo red from aqueous solution without adjusting pH value at room temperature. Adsorption kinetic experimental data are well described by pseudo-second-order rate kinetic model, and the adsorption isotherm fits Langmuir isotherm model. The present investigation provides an efficient approach to designing and fabricating manganese-based nanomaterials for environmental remediation.
authors.affiliation: School of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing 100124, China.
authors.forename: Junshu
authors.initials: J
authors.lastname: Wu
authors.forename: Hongyi
authors.initials: H
authors.lastname: Li
authors.forename: Jinshu
authors.initials: J
authors.lastname: Wang
authors.forename: Zhifei
authors.initials: Z
authors.lastname: Li
mesh_terms: D000327:Adsorption; D064751:Ammonium Compounds; D004396:Coloring Agents / Q000302:isolation & purification; D003224:Congo Red / Q000302:isolation & purification*; D005459:Fluorides / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis; D010545:Peroxides / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods; D014881:Water Supply; D014961:X-Ray Diffraction
chemical_list: D064751:Ammonium Compounds; D004396:Coloring Agents; D009930:Organic Chemicals; D010545:Peroxides; D000644:Quaternary Ammonium Compounds; C097259:potassium manganese peroxide; D014867:Water; D003224:Congo Red; C024822:ammonium fluoride; D005459:Fluorides