Abstract
In this work, dithiocarbamate (-NH-CS2)-functionalized dendritic fibrous nanosilica (KCC-1) with significant adsorbtion capacity was effectively synthesized using the reliable reaction process. Field emission scanning electron microscopy, FT-IR and transmission electron microscopy were used to analyze particle size and morphology of nanoadsorbent. Additionally, the functionalization of bare materials (dendritic fibrous nanosilica) with dithiocarbamate was confirmed with FT-IR and energy-dispersive X-ray spectroscopy. Furthermore, nitrogen adsorption/desorption analysis (BET equation) was utilized to evaluate KCC-1-NH-CS2 porosity (surface are, pore size, pore volume). The UV–Vis spectrophotometric method was used to evaluate organic dye removal from aqueous solutions. It was found that dithiocarbamate-functionalized KCC-1-NH2 with narrow size distribution, high surface area (133 m2/g) and effortlessly available pores had good potential for highly efficient removal of malachite green (MG) from contaminated waters. Electrostatic interactions between the negatively charged dithiocarbamate group (NH-CS2−) of nanoadsorbent and cationic MG in KCC-1-NH-CS2 channels provided a rapid (45 min) removal of this organic contaminated agent from waste water with adsorbtion capacity higher than 98%. Finally, an efficient nanoadsorbent was introduced to remove organic dyes from wastewaters and industrial purification.
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Anvari, M., Shadjou, N. Dendritic fibrous nanosilica functionalized by dithiocarbamate as a highly efficient adsorbent for the removal of malachite green from waste water based on electrostatic interaction. Int. J. Environ. Sci. Technol. 18, 1089–1096 (2021). https://doi.org/10.1007/s13762-020-02911-w
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DOI: https://doi.org/10.1007/s13762-020-02911-w