Facile synthesis of magnetic hybrid metal–organic frameworks with high adsorption capacity for methylene blue
作者： Rui Wang , Chunhua Ge , Tianzhu Xing , Yuanyuan Zhang , Yundi Zhang
DOI: 10.1002/AOC.3798
关键词:
摘要: A magnetic hybrid material (Fe3O4-COOH/HKUST-1) was easily synthesized via a two-step simple solvothermal method. Through adding sodium acrylate directly into the synthesis of Fe3O4 spheres, surface has more carboxyl groups. It is notable that reactions proceed without use organic surfactants. The characterized using various techniques. high specific area (430.15 m2 g−1) and excellent magnetism (23.65 emu g−1). an efficient adsorbent for removing dyes like methylene blue (MB) from aqueous solution. also can be recovered liquid media external field. Adsorption experiment shows possesses adsorption capacity (118.6 mg g−1), efficiency (94.3%) after five cycles with ethanol (0.2% HCl) as eluent. sorption kinetics isotherm analysis indicate these processes are better fitted to pseudo-second-order Langmuir equations. Thermodynamic study spontaneous endothermic.
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