TY - JOUR
T1 - Preparation of layered double hydroxides with different divalent metals for the adsorption of methyl orange dye from aqueous solutions
AU - Mamat, Mazidah
AU - Abdullah, Mohd Aidil Adhha
AU - Kadir, Maisara Abdul
AU - Jaafar, Adila Mohamad
AU - Kusrini, Eny
N1 - Publisher Copyright:
© IJTech 2018.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - In this study, layered double hydroxides (LDHs) with different divalent metal cations were prepared and then utilized as adsorbent for the removal of dye from aqueous solutions. LDHs are positively charged lamellar solids consisting of divalent and trivalent metallic cations and exchangeable interlayer anions. The potential combinatorial series of M/aluminum (M = Ca, Mn and Zn) LDHs for the removal of methyl orange (MO) dye from aqueous solutions were investigated. LDHs were synthesized via a co-precipitation method and characterized using powder X-Ray diffraction (PXRD) and Fourier-transform infrared spectrophotometer (FTIR). The LDHs were then used as adsorbent for the removal of MO dye at different LDH dosages. As the LDH dosage increased, the removal percentage of MO dye also increased. CaAl, MnAl and ZnAl LDHs were able to adsorb up to 96.6%, 97.9% and 99.8% of MO dye, respectively, after being put in contact with the LDHs for 24h. Their adsorption ability was further analyzed by using Langmuir and Freundlich isotherm models in which the adsorption mechanism was determined. Adsorption of MO by CaAl, and ZnAl LDHs was governed by the Langmuir isotherm model while the adsorption data for MnAl LDH was found to fit well with the Freundlich isotherm model.
AB - In this study, layered double hydroxides (LDHs) with different divalent metal cations were prepared and then utilized as adsorbent for the removal of dye from aqueous solutions. LDHs are positively charged lamellar solids consisting of divalent and trivalent metallic cations and exchangeable interlayer anions. The potential combinatorial series of M/aluminum (M = Ca, Mn and Zn) LDHs for the removal of methyl orange (MO) dye from aqueous solutions were investigated. LDHs were synthesized via a co-precipitation method and characterized using powder X-Ray diffraction (PXRD) and Fourier-transform infrared spectrophotometer (FTIR). The LDHs were then used as adsorbent for the removal of MO dye at different LDH dosages. As the LDH dosage increased, the removal percentage of MO dye also increased. CaAl, MnAl and ZnAl LDHs were able to adsorb up to 96.6%, 97.9% and 99.8% of MO dye, respectively, after being put in contact with the LDHs for 24h. Their adsorption ability was further analyzed by using Langmuir and Freundlich isotherm models in which the adsorption mechanism was determined. Adsorption of MO by CaAl, and ZnAl LDHs was governed by the Langmuir isotherm model while the adsorption data for MnAl LDH was found to fit well with the Freundlich isotherm model.
KW - Adsorption
KW - Anionic clay
KW - Layered double hydroxide
KW - Methyl orange dye
UR - http://www.scopus.com/inward/record.url?scp=85058158286&partnerID=8YFLogxK
U2 - 10.14716/ijtech.v9i6.2379
DO - 10.14716/ijtech.v9i6.2379
M3 - Article
AN - SCOPUS:85058158286
SN - 2086-9614
VL - 9
SP - 1103
EP - 1111
JO - International Journal of Technology
JF - International Journal of Technology
IS - 6
ER -