TY - JOUR
T1 - Kinetic, isotherm, and thermodynamic studies on Cr(VI) adsorption using cellulose acetate/graphene oxide composite nanofibers
AU - Raya, Indah
AU - Widjaja, Gunawan
AU - Mahmood, Zaid Hameed
AU - Kadhim, Abed J.
AU - Vladimirovich, Kabanov Oleg
AU - Mustafa, Yasser Fakri
AU - Kadhim, Mustafa M.
AU - Mahmudiono, Trias
AU - Husein, Ismail
AU - Kafi-Ahmadi, Leila
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
PY - 2022/2
Y1 - 2022/2
N2 - In the present study, cellulose acetate/graphene oxide (CA/GO) composite nanofibers were prepared via the electrospinning method to remove Cr(VI) ions from aqueous solution via adsorption process in a batch mode. The impact of adsorption parameters, including contact time, pH, Cr(VI) concentration, and temperature was investigated to obtain the optimum conditions for the uptake of maximum Cr(VI) ions from water within a short time. The kinetic data of Cr(VI) adsorption were well fitted by pseudo-first-order and pseudo-second-order kinetic models, whereas Redlich-Peterson, Langmuir and Freundlich, isotherm models were used to describe the equilibrium data of Cr(VI) adsorption by the CA/GO nanofibers. The effect of temperature on the adsorption capacity of Cr(VI) ions using the nanofibers indicated that the higher temperatures were favorable for higher adsorption of Cr(VI) ions using the nanofibers. The thermodynamic parameters results indicated the spontaneous and endothermic of Cr(VI) sorption nature using the CA/GO nanofibrous adsorbent. The maximum monolayer adsorption capacity of nanofibers toward Cr(VI) ions sorption was 422.3 mgg−1 which was comparable with other adsorbents. The reusability of composite nanofibers was carried out for five adsorption–desorption cycles. The obtained results exhibited the high capability of CA/GO nanofibrous adsorbents for Cr(VI) ions sorption from actual wastewater. Graphical abstract: [Figure not available: see fulltext.]
AB - In the present study, cellulose acetate/graphene oxide (CA/GO) composite nanofibers were prepared via the electrospinning method to remove Cr(VI) ions from aqueous solution via adsorption process in a batch mode. The impact of adsorption parameters, including contact time, pH, Cr(VI) concentration, and temperature was investigated to obtain the optimum conditions for the uptake of maximum Cr(VI) ions from water within a short time. The kinetic data of Cr(VI) adsorption were well fitted by pseudo-first-order and pseudo-second-order kinetic models, whereas Redlich-Peterson, Langmuir and Freundlich, isotherm models were used to describe the equilibrium data of Cr(VI) adsorption by the CA/GO nanofibers. The effect of temperature on the adsorption capacity of Cr(VI) ions using the nanofibers indicated that the higher temperatures were favorable for higher adsorption of Cr(VI) ions using the nanofibers. The thermodynamic parameters results indicated the spontaneous and endothermic of Cr(VI) sorption nature using the CA/GO nanofibrous adsorbent. The maximum monolayer adsorption capacity of nanofibers toward Cr(VI) ions sorption was 422.3 mgg−1 which was comparable with other adsorbents. The reusability of composite nanofibers was carried out for five adsorption–desorption cycles. The obtained results exhibited the high capability of CA/GO nanofibrous adsorbents for Cr(VI) ions sorption from actual wastewater. Graphical abstract: [Figure not available: see fulltext.]
KW - Adsorption
KW - Cellulose acetate
KW - Cr(VI)
KW - Graphene oxide
KW - Nanofibers
UR - http://www.scopus.com/inward/record.url?scp=85124044340&partnerID=8YFLogxK
U2 - 10.1007/s00339-022-05307-4
DO - 10.1007/s00339-022-05307-4
M3 - Article
AN - SCOPUS:85124044340
SN - 0947-8396
VL - 128
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 2
M1 - 167
ER -