TY - JOUR
T1 - Indonesian Kesambi wood (Schleichera oleosa) activated with pyrolysis and H2SO4 combination methods to produce mesoporous activated carbon for Pb(II) adsorption from aqueous solution
AU - Neolaka, Yantus A.B.
AU - Lawa, Yosep
AU - Naat, Johnson
AU - Riwu, Arsel A.P.
AU - Darmokoesoemo, Handoko
AU - Widyaningrum, Bernadeta Ayu
AU - Iqbal, Munawar
AU - Kusuma, Heri Septya
N1 - Funding Information:
The first author would like to thank the Deputy for Strengthening Research and Development, National Research and Innovation Agency for basic research funding and also thanks to our student Crispianus E. Dami, Antoneta Irma Lakamei and all members of the Analytical Chemistry Research Group, Department of Chemical Education, Faculty of Education and Teachers Training, University of Nusa Cendana for assistance in obtaining research data.
Publisher Copyright:
© 2021
PY - 2021/11
Y1 - 2021/11
N2 - The presence of lead in the aquatic environment is a problem with a high potential negative impact on human health. To overcome the lead problem in an aqueous environment, here for the first time we report about the use of kesambi wood (Schleichera oleosa) as a precursor to preparing activated carbon-based adsorbents. Here, the precursor material is prepared to become graphite or Non-Activated Carbon Mesoporous Adsorbents (NACMA) by using the pyrolysis method. NACMA then was chemically activated by using H2SO4 to produce Activated Carbon Mesoporous Adsorbent (ACMA) material. The characteristics of the ACMA and the NACMA then were evaluated by using the FTIR, XRD, SEM-EDX and BET-BJH instruments. ACMA then is used to adsorb Pb(II) from an aqueous solution by using a batch system. In this study, 10 kinetics models and 5 adsorption isotherm models were used to study the Pb(II) adsorption mechanism. The results of the kinetic analysis showed that the adsorption of Pb(II) on activated carbon mesoporous adsorbent (ACMA) was following the pseudo-second-order (PSO) model. Meanwhile, the adsorption isotherm follows the Langmuir model with an adsorption capacity of 1.634 mg.g−1. Thermodynamic analysis shows that the adsorption process occurs exothermic and physisorption. In addition, there was also a decrease in the degree of irregularity on the surface of the activated carbon mesoporous adsorbent (ACMA) adsorption system during the adsorption process.
AB - The presence of lead in the aquatic environment is a problem with a high potential negative impact on human health. To overcome the lead problem in an aqueous environment, here for the first time we report about the use of kesambi wood (Schleichera oleosa) as a precursor to preparing activated carbon-based adsorbents. Here, the precursor material is prepared to become graphite or Non-Activated Carbon Mesoporous Adsorbents (NACMA) by using the pyrolysis method. NACMA then was chemically activated by using H2SO4 to produce Activated Carbon Mesoporous Adsorbent (ACMA) material. The characteristics of the ACMA and the NACMA then were evaluated by using the FTIR, XRD, SEM-EDX and BET-BJH instruments. ACMA then is used to adsorb Pb(II) from an aqueous solution by using a batch system. In this study, 10 kinetics models and 5 adsorption isotherm models were used to study the Pb(II) adsorption mechanism. The results of the kinetic analysis showed that the adsorption of Pb(II) on activated carbon mesoporous adsorbent (ACMA) was following the pseudo-second-order (PSO) model. Meanwhile, the adsorption isotherm follows the Langmuir model with an adsorption capacity of 1.634 mg.g−1. Thermodynamic analysis shows that the adsorption process occurs exothermic and physisorption. In addition, there was also a decrease in the degree of irregularity on the surface of the activated carbon mesoporous adsorbent (ACMA) adsorption system during the adsorption process.
KW - Activated carbon mesoporous adsorbent
KW - Pb(II)
KW - Schleichera oleosa
KW - Wastewater
KW - adsorption
UR - http://www.scopus.com/inward/record.url?scp=85118538449&partnerID=8YFLogxK
U2 - 10.1016/j.eti.2021.101997
DO - 10.1016/j.eti.2021.101997
M3 - Article
AN - SCOPUS:85118538449
SN - 2352-1864
VL - 24
JO - Environmental Technology and Innovation
JF - Environmental Technology and Innovation
M1 - 101997
ER -
