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Adsorption of humic acid from aqueous solution onto PAA nanofiber: Thermodynamic study
Zulfikar M.A.a, Maulina D.a, Setiyanto H.a, Nasir M.b
a Analytical Chemistry Research Group, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Green Technology Laboratory, Indonesian Institute of Sciences, Bandung, 40135, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Trans Tech Publications Ltd, Switzerland.The potential of polyacrylic acid (PAA) nanofiber as adsorbent for adsorption of humic acid (HA) from aqueous solution was studied. In this study, the experiments were carried out to investigate the effect of temperatures on HA adsorption. From experiment it can be seen that the HA adsorption onto PAA nanofiber increased with increasing temperature. Thermodynamic parameters data indicated that the HA adsorption process was non-spontaneous and endothermic under the experimental conditions, with the Gibbs free energy (ΔGo) in the range of 1.721-0.980kJmol-1, enthalpy (ΔHo) and entropy (ΔSo) of 7.24 kJ mol-1 and 18.52 J mol-1 K-1, respectively.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Effect of temperature,Endotherm reaction,Experimental conditions,Humic acid,Increasing temperatures,Polyacrylic acids,Thermodynamic parameter,Thermodynamic studies[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Adsorption,Endotherm reaction,Humic acid,Nanofiber,Polyacrylic acid[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors are very grateful to Institut Teknologi Bandung for their financial support through Riset Multidisiplin 2018.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.4028/www.scientific.net/KEM.811.99[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]