TY - JOUR
T1 - Superparamagnetic nanoadsorbents for the removal of trace As(III) in drinking water
AU - Marcos-Hernández, Mariana
AU - Arrieta, Roy A.
AU - Ventura, Karen
AU - Hernández, José
AU - Powell, Camilah D.
AU - Atkinson, Ariel J.
AU - Markovski, Jasmina S.
AU - Gardea-Torresdey, Jorge
AU - Hristovski, Kiril D.
AU - Westerhoff, Paul
AU - Wong, Michael S.
AU - Villagrán, Dino
N1 - Publisher Copyright:
© 2021
PY - 2021/7
Y1 - 2021/7
N2 - A series of novel zeolitic imidazolate framework (ZIF) decorated superparamagnetic graphene oxide hybrid nanoadsorbents were synthesized, characterized, and tested for their As(III) adsorbed amount in simulated drinking water. The three composite nanomaterials are based each on three isostructural and water stable ZIFs, (C-1 based on ZIF-8, C-2 based on ZIF-67, and C-3 based on ZIF-Zn/Co). The composite nanomaterials and there parent materials were characterized through pXRD, TEM, FTIR, BET and magnetometry methods (SQUID), and were tested as adsorbents in a representative drinking water matrix containing arsenite (As(III)) at an initial trace concentration (realistic in some natural drinking water sources) of 35 µg/L. The nanoadsorbents were magnetically captured and removed after adsorption in batch conditions. Out of the three composites, C-2 shows the highest As(III) adsorbed amount at an initial concentration of 35 µg/L (q0) of 202 µg/g, followed by C-3 with 102 µg/g and C-1 with 82 µg/g.
AB - A series of novel zeolitic imidazolate framework (ZIF) decorated superparamagnetic graphene oxide hybrid nanoadsorbents were synthesized, characterized, and tested for their As(III) adsorbed amount in simulated drinking water. The three composite nanomaterials are based each on three isostructural and water stable ZIFs, (C-1 based on ZIF-8, C-2 based on ZIF-67, and C-3 based on ZIF-Zn/Co). The composite nanomaterials and there parent materials were characterized through pXRD, TEM, FTIR, BET and magnetometry methods (SQUID), and were tested as adsorbents in a representative drinking water matrix containing arsenite (As(III)) at an initial trace concentration (realistic in some natural drinking water sources) of 35 µg/L. The nanoadsorbents were magnetically captured and removed after adsorption in batch conditions. Out of the three composites, C-2 shows the highest As(III) adsorbed amount at an initial concentration of 35 µg/L (q0) of 202 µg/g, followed by C-3 with 102 µg/g and C-1 with 82 µg/g.
KW - Composite nanoadsorbents
KW - Superparamagnetic
KW - Trace arsenic removal
KW - Zeolitic imidazolate frameworks
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U2 - 10.1016/j.envadv.2021.100046
DO - 10.1016/j.envadv.2021.100046
M3 - Article
AN - SCOPUS:85118735736
SN - 2666-7657
VL - 4
JO - Environmental Advances
JF - Environmental Advances
M1 - 100046
ER -