%0 Journal Article
%T Removal of Fluoride from Water Using Mesoporous MCM-41: An Optimization Approach Using Response Surface Methodology (RSM)
%A Bodhaditya Das
%A Saumen Banerjee
%A Prasanta K. Raul
%A Rashmi R. Devi
%A Iohbor M. Umlong
%A Anup K. Talukdar
%A Sanjai K. Dwivedi
%J Advances in Nanoparticles
%P 95-114
%@ 2169-0529
%D 2021
%I Scientific Research Publishing
%R 10.4236/anp.2021.103007
%X Fluoride above 1.5 mg¡¤L-1 is injurious to
health. Removal of fluoride from water using mesoporous MCM-41 as a strong
adsorbent material has been attempted. Characterization using transmission
electron microscopic study of calcined MCM-41 showed the regular hexagonal
array of mesoporous channels with an average size of 20 nm and the surface area (BET
study) of 1306.96 m2¡¤g-1. The average pore size of the
particles was found to be 14.21 nm. A study on the effect of contact time on the removal
of fluoride revealed that more than 85% uptake of fluoride onto MCM-41 was
achieved at a contact time of 120 min. From the Langmuir adsorption study, the maximum sorption
capacity of fluoride was found to be 63.05 mg/g at 301 K. From the thermodynamic study, the
+¦¤Ho value of 2.29 kJ¡¤mol-1 indicated the endothermic nature of the
removal process. Application of Response Surface Model suggested that 77.88% of
fluoride removal can be achieved at fluoride concentration of 10 mg¡¤L-1,
pH (6.3), and
contact time of 120 min.
%K MCM-41
%K Mesoporous Silica
%K Adsorption
%K Fluoride
%K Response Surface Methodology (RSM)
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=111069