Journal
CHEMICAL ENGINEERING JOURNAL
Volume 420, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.127627
Keywords
Adsorption; P-cresol; Melamine; P-nitrophenol; Polyaniline-derived carbon
Categories
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and future Planning [2017R1A2B2008774]
- National Research Foundation of Korea [4120200213748] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, nitrogen-enriched porous carbon derived from a mixture of melamine and polyaniline was prepared and applied in the adsorption of phenolic compounds from water. The best carbon material (MPDC700) showed high adsorption capacity and recyclability, making it a promising adsorbent for removing phenolic compounds from water.
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 degrees C, had the highest adsorption capacity for pNP (Q(max): 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 pi-pi 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.
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