TY - JOUR
T1 - Removal of selected endocrine-disrupting compounds using Al-based metal organic framework
T2 - Performance and mechanism of competitive adsorption
AU - Jun, Byung Moon
AU - Hwang, Hong Seop
AU - Heo, Jiyong
AU - Han, Jonghun
AU - Jang, Min
AU - Sohn, Jinsik
AU - Park, Chang Min
AU - Yoon, Yeomin
N1 - Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry
PY - 2019/11/25
Y1 - 2019/11/25
N2 - Endocrine disrupting compounds (EDCs) present serious environmental problems due to their negative impacts on lifeforms. To solve these issues, a metal–organic frameworks (MOF) was used as an efficient adsorbent for the removal of EDCs. This work was mainly conducted to (i) characterize the adsorbent, (ii) establish the feasibility of MOF for removal of the selected EDCs (bisphenol A (BPA), 17α-ethynylestradiol (EE2), and perfluorooctanoic acid (PFOA)), and (iii) study the competitive adsorption mechanism. Physicochemical properties of MOF were characterized by microscopy, porosimetry, and zeta potential analyses. Feasibility testing of MOF was conducted under various solution conditions to determine the effect of solution temperature, pH, background ions, and humic acid on the adsorption capacity. The adsorption process in this study was spontaneous reaction, considering the negative value of ΔG0 derived from experiments of solution temperature. According to experimental results related to the adsorbent dose, the maximum equilibrium adsorption capacity (qe) for BPA, EE2, and PFOA by MOF was 138.4, 200.4, and 169.2 mg g−1, respectively. The adsorption mechanism of the EDCs was clearly explained by numerous solution factors (i.e., pH, background ions, and the existence of humic acid), and synergetic effects of hydrophobic and electrostatic interactions were important to explain the adsorption mechanism.
AB - Endocrine disrupting compounds (EDCs) present serious environmental problems due to their negative impacts on lifeforms. To solve these issues, a metal–organic frameworks (MOF) was used as an efficient adsorbent for the removal of EDCs. This work was mainly conducted to (i) characterize the adsorbent, (ii) establish the feasibility of MOF for removal of the selected EDCs (bisphenol A (BPA), 17α-ethynylestradiol (EE2), and perfluorooctanoic acid (PFOA)), and (iii) study the competitive adsorption mechanism. Physicochemical properties of MOF were characterized by microscopy, porosimetry, and zeta potential analyses. Feasibility testing of MOF was conducted under various solution conditions to determine the effect of solution temperature, pH, background ions, and humic acid on the adsorption capacity. The adsorption process in this study was spontaneous reaction, considering the negative value of ΔG0 derived from experiments of solution temperature. According to experimental results related to the adsorbent dose, the maximum equilibrium adsorption capacity (qe) for BPA, EE2, and PFOA by MOF was 138.4, 200.4, and 169.2 mg g−1, respectively. The adsorption mechanism of the EDCs was clearly explained by numerous solution factors (i.e., pH, background ions, and the existence of humic acid), and synergetic effects of hydrophobic and electrostatic interactions were important to explain the adsorption mechanism.
KW - Competitive adsorption
KW - Endocrine disrupting compounds
KW - Mechanism
KW - Metal–organic frameworks
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=85069673524&partnerID=8YFLogxK
U2 - 10.1016/j.jiec.2019.07.009
DO - 10.1016/j.jiec.2019.07.009
M3 - Article
AN - SCOPUS:85069673524
SN - 1226-086X
VL - 79
SP - 345
EP - 352
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
ER -