TY - JOUR
T1 - Melamine/polyaniline-derived carbons with record-high adsorption capacities for effective removal of phenolic compounds from water
AU - Park, Jong Min
AU - Kim, Chang Min
AU - Jhung, Sung Hwa
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/9/15
Y1 - 2021/9/15
N2 - Recently, contamination of water resources with phenolic compounds (PCs) is severe. In this study, we firstly prepared nitrogen-enriched porous carbon via pyrolysis of a mixture of melamine and polyaniline. Melamine/polyaniline-derived carbons (MPDCs) were characterized and applied in the adsorption of PCs, like p-nitrophenol (pNP), hydroquinone (HQ) and p-cresol (pC), from water. A selected MPDC700, an MPDC prepared at 700 °C, had the highest adsorption capacity for pNP (Qmax: 910 ± 18 mg/g) and pC, compared with any known material. Based on the adsorption results under wide conditions and characteristics of MPDCs, the plausible adsorption mechanism, such as π-π interaction and hydrogen bonding, could be suggested. The best MPDC700 was recyclable for several runs; therefore, can be recommended as a competitive adsorbent to remove PCs from water.
AB - Recently, contamination of water resources with phenolic compounds (PCs) is severe. In this study, we firstly prepared nitrogen-enriched porous carbon via pyrolysis of a mixture of melamine and polyaniline. Melamine/polyaniline-derived carbons (MPDCs) were characterized and applied in the adsorption of PCs, like p-nitrophenol (pNP), hydroquinone (HQ) and p-cresol (pC), from water. A selected MPDC700, an MPDC prepared at 700 °C, had the highest adsorption capacity for pNP (Qmax: 910 ± 18 mg/g) and pC, compared with any known material. Based on the adsorption results under wide conditions and characteristics of MPDCs, the plausible adsorption mechanism, such as π-π interaction and hydrogen bonding, could be suggested. The best MPDC700 was recyclable for several runs; therefore, can be recommended as a competitive adsorbent to remove PCs from water.
KW - Adsorption
KW - Melamine
KW - P-cresol
KW - P-nitrophenol
KW - Polyaniline-derived carbon
UR - http://www.scopus.com/inward/record.url?scp=85095819041&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.127627
DO - 10.1016/j.cej.2020.127627
M3 - Article
AN - SCOPUS:85095819041
SN - 1385-8947
VL - 420
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 127627
ER -