PMID- 29867035
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 11
IP  - 6
DP  - 2018 Jun 4
TI  - Nanoscale Zero-Valent Iron Decorated on Bentonite/Graphene Oxide for Removal of 
      Copper Ions from Aqueous Solution.
LID - 10.3390/ma11060945 [doi]
LID - 945
AB  - The removal efficiency of Cu(II) in aqueous solution by bentonite, graphene oxide 
      (GO), and nanoscale iron decorated on bentonite (B-nZVI) and nanoscale iron 
      decorated on bentonite/graphene oxide (GO-B-nZVI) was investigated. The results 
      indicated that GO-B-nZVI had the best removal efficiency in different 
      experimental environments (with time, pH, concentration of copper ions, and 
      temperature). For 16 hours, the removal efficiency of copper ions was 82% in 
      GO-B-nZVI, however, it was 71% in B-nZVI, 26% in bentonite, and 18% in GO. 
      Bentonite, GO, B-nZVI, and GO-B-nZVI showed an increased removal efficiency of 
      copper ions with the increase of pH under a certain pH range. The removal 
      efficiency of copper ions by GO-B-nZVI first increased and then fluctuated 
      slightly with the increase of temperature, while B-nZVI and bentonite increased 
      and GO decreased slightly with the increase of temperature. Lorentz-Transmission 
      Electron Microscope (TEM) images showed the nZVI particles of GO-B-nZVI dispersed 
      evenly with diameters ranging from 10 to 86.93 nm. Scanning electron microscope 
      (SEM) images indicated that the nanoscale iron particles were dispersed evenly on 
      bentonite and GO with no obvious agglomeration. The q(e,cal) (73.37 mg.g(-1) and 
      83.89 mg.g(-1)) was closer to the experimental value q(e,exp) according to the 
      pseudo-second-order kinetic model. The q(m) of B-nZVI and GO-B-nZVI were 130.7 
      mg.g(-1) and 184.5 mg.g(-1) according to the Langmuir model.
FAU - Shao, Jicheng
AU  - Shao J
AD  - College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 
      325035, China. shaojicheng@aliyun.com.
FAU - Yu, Xiaoniu
AU  - Yu X
AUID- ORCID: 0000-0002-1386-9966
AD  - College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 
      325035, China. xnyu@wzu.edu.cn.
FAU - Zhou, Min
AU  - Zhou M
AD  - College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 
      325035, China. zhoumin480855165@aliyun.com.
FAU - Cai, Xiaoqing
AU  - Cai X
AD  - College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 
      325035, China. cxq@wzu.edu.cn.
FAU - Yu, Chuang
AU  - Yu C
AD  - College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 
      325035, China. geoyuchuang@163.com.
LA  - eng
PT  - Journal Article
DEP - 20180604
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC6025343
OTO - NOTNLM
OT  - adsorption
OT  - bentonite
OT  - copper ions
OT  - graphene oxide
OT  - zero-valent iron
COIS- The authors declare no conflict of interest.
EDAT- 2018/06/06 06:00
MHDA- 2018/06/06 06:01
PMCR- 2018/06/04
CRDT- 2018/06/06 06:00
PHST- 2018/05/07 00:00 [received]
PHST- 2018/05/31 00:00 [revised]
PHST- 2018/06/01 00:00 [accepted]
PHST- 2018/06/06 06:00 [entrez]
PHST- 2018/06/06 06:00 [pubmed]
PHST- 2018/06/06 06:01 [medline]
PHST- 2018/06/04 00:00 [pmc-release]
AID - ma11060945 [pii]
AID - materials-11-00945 [pii]
AID - 10.3390/ma11060945 [doi]
PST - epublish
SO  - Materials (Basel). 2018 Jun 4;11(6):945. doi: 10.3390/ma11060945.