TY - JOUR
T1 - Insight into the adsorption of PPCPs by porous adsorbents
T2 - Effect of the properties of adsorbents and adsorbates
AU - Zhu, Zengyin
AU - Xie, Jiawen
AU - Zhang, Mancheng
AU - Zhou, Qing
AU - Liu, Fuqiang
N1 - Funding Information:
We gratefully acknowledge the generous support provided by the NSFC (Nos. 51290282 and 51438008 ) and the Fundamental Research Funds for the Central Universities .
Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - Adsorption is an efficient method for removal of pharmaceuticals and personal care products (PPCPs). Magnetic resins are efficient adsorbents for water treatment and exhibit potential for PPCP removal. In this study, the magnetic hypercrosslinked resin Q100 was used for adsorption of PPCPs. The adsorption behavior of this resin was compared with those of two activated carbons, namely, Norit and F400D. Norit exhibited the fastest adsorption kinetics, followed by Q100. Norit featured a honeycomb shape and long-range ordered pore channels, which facilitated the diffusion of PPCPs. Moreover, the large average pore size of Q100 reduced diffusion resistance. The adsorbed amounts of 11 PPCPs on the three adsorbents increased with increasing adsorbate hydrophobicity. For Q100, a significant linear correlation was observed between the adsorption performance for PPCPs and hydrophobicity (logD value) of adsorbates (R2 = 0.8951); as such, PPCPs with high logD values (>1.69) could be efficiently removed. Compared with those of Norit and F400D, the adsorption performance of Q100 was less affected by humic acid because of the dominant hydrophobic interaction. Furthermore, Q100 showed improved regeneration performance, which renders it promising for PPCP removal in practical applications.
AB - Adsorption is an efficient method for removal of pharmaceuticals and personal care products (PPCPs). Magnetic resins are efficient adsorbents for water treatment and exhibit potential for PPCP removal. In this study, the magnetic hypercrosslinked resin Q100 was used for adsorption of PPCPs. The adsorption behavior of this resin was compared with those of two activated carbons, namely, Norit and F400D. Norit exhibited the fastest adsorption kinetics, followed by Q100. Norit featured a honeycomb shape and long-range ordered pore channels, which facilitated the diffusion of PPCPs. Moreover, the large average pore size of Q100 reduced diffusion resistance. The adsorbed amounts of 11 PPCPs on the three adsorbents increased with increasing adsorbate hydrophobicity. For Q100, a significant linear correlation was observed between the adsorption performance for PPCPs and hydrophobicity (logD value) of adsorbates (R2 = 0.8951); as such, PPCPs with high logD values (>1.69) could be efficiently removed. Compared with those of Norit and F400D, the adsorption performance of Q100 was less affected by humic acid because of the dominant hydrophobic interaction. Furthermore, Q100 showed improved regeneration performance, which renders it promising for PPCP removal in practical applications.
KW - Activated carbon
KW - Hydrophobicity
KW - Kinetics
KW - Magnetic resin
KW - Recyclability
UR - http://www.scopus.com/inward/record.url?scp=84964749524&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2016.04.070
DO - 10.1016/j.envpol.2016.04.070
M3 - Journal article
C2 - 27131811
AN - SCOPUS:84964749524
SN - 0269-7491
VL - 214
SP - 524
EP - 531
JO - Environmental Pollution
JF - Environmental Pollution
ER -