TY - JOUR
T1 - Mesoporous calcium hydroxide nanoparticle synthesis from waste bivalve clamshells and evaluation of its adsorptive potential for the removal of Acid Blue 113 dye
AU - Pai, Shraddha
AU - Kini, M. Srinivas
AU - Rangasamy, Gayathri
AU - Selvaraj, Raja
N1 - Funding Information:
The authors thank the Department of Chemical engineering, Manipal Institute of Technology, Manipal Academy of Higher Education for laboratory requirements and chemicals. Also, all the authors are grateful to DST PURSE Laboratory, Mangalore University, Mangalagangotri, for helping with FE-SEM and EDS analyses.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/2
Y1 - 2023/2
N2 - Calcium hydroxide nanoadsorbent was prepared from waste bivalve clamshells and used for the adsorptive removal of Acid Blue 113 (AB113) dye. The morphology, elemental nature, functional groups, and thermal stability of the nanoadsorbent were characterized by various methods. The nanoadsorbent had a high monolayer adsorption capacity (153.53 mg/g) for AB113 dye. Langmuir and Temkin isotherms better fitted (R2 > 0.95) the experimental data. The adsorption rate followed pseudo-second-order kinetics (R2 > 0.99). The thermodynamic study ascertained spontaneous and exothermic adsorption. This study confirmed the possibility of using calcium hydroxide as an adsorbent to effectively remove AB113 dye from aqueous solutions.
AB - Calcium hydroxide nanoadsorbent was prepared from waste bivalve clamshells and used for the adsorptive removal of Acid Blue 113 (AB113) dye. The morphology, elemental nature, functional groups, and thermal stability of the nanoadsorbent were characterized by various methods. The nanoadsorbent had a high monolayer adsorption capacity (153.53 mg/g) for AB113 dye. Langmuir and Temkin isotherms better fitted (R2 > 0.95) the experimental data. The adsorption rate followed pseudo-second-order kinetics (R2 > 0.99). The thermodynamic study ascertained spontaneous and exothermic adsorption. This study confirmed the possibility of using calcium hydroxide as an adsorbent to effectively remove AB113 dye from aqueous solutions.
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U2 - 10.1016/j.chemosphere.2022.137476
DO - 10.1016/j.chemosphere.2022.137476
M3 - Article
C2 - 36513196
AN - SCOPUS:85144476033
SN - 0045-6535
VL - 313
JO - Chemosphere
JF - Chemosphere
M1 - 137476
ER -
