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Mesostructured Hollow Siliceous Spheres for Adsorption of Dyes
Author(s) -
Soltani Roozbeh,
Marjani Azam,
Hosseini Mina,
Shirazian Saeed
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900470
Subject(s) - adsorption , aqueous solution , scanning electron microscope , chemical engineering , spheres , langmuir adsorption model , crystal violet , porosity , materials science , chemistry , nanotechnology , organic chemistry , composite material , physics , medicine , pathology , astronomy , engineering
Abstract A facile and one‐pot strategy for the preparation of novel diamino‐functionalized hollow siliceous spheres (DAF‐HSS) is suggested. Field‐emission scanning electron microscopy (FE‐SEM) images of DAF‐HSS showed a monodispersed hollow sphere morphology. Also, TEM images revealed that the DAF‐HSS has a porous structure with parallel semi‐long‐range channels. DAF‐HSS material was used as an adsorbent for the removal of hazardous monocationic dyes in aqueous solution. Neutral red (NR) and crystal violet (CV) were selected as model compounds. Isotherm and kinetic studies were carried out and their different linear forms were applied and compared. The equilibrium data fitted better with the Langmuir model.