PMID- 33504707
OWN - NLM
STAT- MEDLINE
DCOM- 20210129
LR  - 20210129
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 83
IP  - 2
DP  - 2021 Jan
TI  - Selective adsorption behavior of Cd(2+) imprinted 
      acrylamide-crosslinked-poly(alginic acid) magnetic polymers: fabrication, 
      characterization, adsorption performance and mechanism.
PG  - 449-462
LID - 10.2166/wst.2020.593 [doi]
AB  - Poly(acrylamide) grafted and glutaraldehyde-crosslinked alginic acid 
      nano-magnetic adsorbent (AAMA) was prepared by selecting Cd(2+) as a template 
      ion. Scanning electron microscope (SEM), thermo-gravimetric analyzer (TGA), 
      vibrating sample magnetometer (VSM) and infrared spectroscopy (IR) were used to 
      characterize the morphology and structure of AAMA. The adsorption of AAMA for 
      different metal ions was compared and the impact of various factors for 
      adsorption of Cd(2+) was systematically investigated. These results suggested 
      that the AAMA was the aggregates of Fe(3)O(4) nanoparticles with a diameter of 
      about 50-100 nm and had selectivity for Cd(2+) adsorption. The maximum adsorption 
      capacity for Cd(2+) is 175 mg/g at pH 5.0 and 303 K. The experimental data were 
      well described by the Langmuir isotherm model and pseudo-second-order model. The 
      parameters of adsorption thermodynamics concluded that the adsorption progress is 
      spontaneous and endothermic in nature. The parameters of adsorption activation 
      energy suggested that there is physical adsorption and chemisorption on the 
      adsorption of metal ions. AAMA could be regenerated by EDTA and still keep 71% 
      adsorption capacity in the fifth consecutive adsorption-regeneration cycle. 
      Therefore, AAMA would be useful as a selective and high adsorption capacity 
      nano-magnetic adsorbent in the removal of Cd(2+) from wastewater.
FAU - Li, Zuyu
AU  - Li Z
AD  - College of Environmental Science and Engineering, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan, 250353, China E-mail: guosz@qlu.edu.cn.
FAU - Guo, Shuangzhen
AU  - Guo S
AD  - College of Environmental Science and Engineering, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan, 250353, China E-mail: guosz@qlu.edu.cn.
FAU - Li, Da
AU  - Li D
AD  - College of Environmental Science and Engineering, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan, 250353, China E-mail: guosz@qlu.edu.cn.
FAU - Zang, Lihua
AU  - Zang L
AD  - College of Environmental Science and Engineering, Qilu University of Technology 
      (Shandong Academy of Sciences), Jinan, 250353, China E-mail: guosz@qlu.edu.cn.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Polymers)
RN  - 0 (Water Pollutants, Chemical)
RN  - 00BH33GNGH (Cadmium)
RN  - 20R035KLCI (Acrylamide)
RN  - 8C3Z4148WZ (Alginic Acid)
SB  - IM
MH  - Acrylamide
MH  - Adsorption
MH  - Alginic Acid
MH  - Cadmium
MH  - Kinetics
MH  - Magnetic Phenomena
MH  - *Polymers
MH  - *Water Pollutants, Chemical
EDAT- 2021/01/29 06:00
MHDA- 2021/01/30 06:00
CRDT- 2021/01/28 05:34
PHST- 2021/01/28 05:34 [entrez]
PHST- 2021/01/29 06:00 [pubmed]
PHST- 2021/01/30 06:00 [medline]
AID - 10.2166/wst.2020.593 [doi]
PST - ppublish
SO  - Water Sci Technol. 2021 Jan;83(2):449-462. doi: 10.2166/wst.2020.593.