TY - JOUR
T1 - Selective adsorption of ferulic acid and furfural from acid lignocellulosic hydrolysate by novel magnetic lignin-based adsorbent
AU - Xiang, Houle
AU - Dai, Kun
AU - Kou, Jingwei
AU - Wang, Guiqin
AU - Zhang, Zhen
AU - Li, Dan
AU - Chen, Chen
AU - Wu, Jinglan
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/2/15
Y1 - 2023/2/15
N2 - In this study, two novel adsorbents (M-0 and M-1) were obtained by one-step synthesis of magnetic nanoparticles with alkaline lignin and oxidized alkaline lignin, respectively. The core-shell structure of the two adsorbents was demonstrated by various characterization results. The adsorption performance of M-0 and M-1 for ferulic acid and furfural at different pH, contact time, initial concentration, and temperature were investigated. The results showed that the adsorbents were pH-sensitive for ferulic acid but not for furfural, and the adsorption process was rapid and thermodynamically unfavorable. Meanwhile, the simulated acid hydrolysate was detoxified by different concentrations of M-1 and its reusability was investigated under mild regeneration conditions (pH = 10, 328 K). M-1 exhibited 93.41 % removal of ferulic acid and 53.12 % removal of furfural with almost no sugar loss during the adsorption process, as well as excellent reusability. The adsorbent M-1 (before and after adsorption) was determined by suitable characterization techniques and the results illustrated π-π interactions and hydrogen bonding as the major forces. Above all, adsorbents have promising applications for the detoxification of acidic lignocellulosic hydrolysates.
AB - In this study, two novel adsorbents (M-0 and M-1) were obtained by one-step synthesis of magnetic nanoparticles with alkaline lignin and oxidized alkaline lignin, respectively. The core-shell structure of the two adsorbents was demonstrated by various characterization results. The adsorption performance of M-0 and M-1 for ferulic acid and furfural at different pH, contact time, initial concentration, and temperature were investigated. The results showed that the adsorbents were pH-sensitive for ferulic acid but not for furfural, and the adsorption process was rapid and thermodynamically unfavorable. Meanwhile, the simulated acid hydrolysate was detoxified by different concentrations of M-1 and its reusability was investigated under mild regeneration conditions (pH = 10, 328 K). M-1 exhibited 93.41 % removal of ferulic acid and 53.12 % removal of furfural with almost no sugar loss during the adsorption process, as well as excellent reusability. The adsorbent M-1 (before and after adsorption) was determined by suitable characterization techniques and the results illustrated π-π interactions and hydrogen bonding as the major forces. Above all, adsorbents have promising applications for the detoxification of acidic lignocellulosic hydrolysates.
KW - Detoxification
KW - Lignocellulosic hydrolysates
KW - Selective adsorption
KW - pH-sensitivity
UR - http://www.scopus.com/inward/record.url?scp=85143910577&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2022.122840
DO - 10.1016/j.seppur.2022.122840
M3 - 文章
AN - SCOPUS:85143910577
SN - 1383-5866
VL - 307
JO - Separation and Purification Technology
JF - Separation and Purification Technology
M1 - 122840
ER -