PMID- 32927175
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20201123
LR  - 20201123
IS  - 1095-7103 (Electronic)
IS  - 0021-9797 (Linking)
VI  - 582
IP  - Pt B
DP  - 2021 Jan 15
TI  - Aerogels from copper (II)-cellulose nanofibers and carbon nanotubes as absorbents 
      for the elimination of toxic gases from air.
PG  - 950-960
LID - S0021-9797(20)31146-2 [pii]
LID - 10.1016/j.jcis.2020.08.100 [doi]
AB  - A novel deodorizer that is capable of selectively eliminating the odorous 
      chemicals, such as ammonia, trimethylamine, hydrogen sulfide and methyl 
      mercaptan, is described. The deodorizer is a nanostructured aerogel by nature, 
      consisting of 2,2-6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized cellulose 
      nanofibrils (CNF), transition metal divalent cations (M(2+)), and multi-walled 
      carbon nanotubes (CNT) as the constitutive elements. CNF are firstly mixed with 
      M(2+) (M(2+), in this paper, typifies Ni(2+), Co(2+) and Cu(2+)) to form 
      CNF-M(2+) complexes, monodispersed CNT is then mixed to prepare CNT/CNF-M(2+) 
      waterborne slurries; CNT/CNF-M(2+) hybridized aerogels are finally obtained via 
      freezing-drying of the CNT/CNF-M(2+) waterborne slurries. The CNT/CNF-M(2+) 
      aerogels are a foam-like structure consisting of CNF and CNT as backbones and 
      M(2+) as linkers. The aerogels show higher capabilities (in comparison with 
      activated carbon) for selectively adsorbing ammonia, trimethylamine, hydrogen 
      sulfide and methyl mercaptan. Computing simulations suggest a theoretical 
      conclusion that the odorous chemicals are absorbed in a preferring manner of 
      bimolecular absorptions via the M(2+) moieties. The CNT/CNF-M(2+) hybridized 
      aerogels are lightweight, eco-friendly, and easy to produce in industrial scales. 
      Our new finding, as is described in this paper, demonstrates potential 
      applications of the TEMPO-oxidized CNF to the field of deodorizations.
CI  - Copyright (c) 2020 Elsevier Inc. All rights reserved.
FAU - Adavan Kiliyankil, Vipin
AU  - Adavan Kiliyankil V
AD  - Faculty of Engineering, The University of Tokyo, Bunkyo-ku, Yayoi 2-11-16, Tokyo 
      113-8656, Japan. Electronic address: vipin@ipr-ctr.t.u-tokyo.ac.jp.
FAU - Fugetsu, Bunshi
AU  - Fugetsu B
AD  - Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Yayoi 
      2-11-16, Tokyo 113-8656, Japan.
FAU - Sakata, Ichiro
AU  - Sakata I
AD  - Faculty of Engineering, The University of Tokyo, Bunkyo-ku, Yayoi 2-11-16, Tokyo 
      113-8656, Japan; Institute for Future Initiatives, The University of Tokyo, 
      Bunkyo-ku, Yayoi 2-11-16, Tokyo 113-8656, Japan.
FAU - Wang, Zhipeng
AU  - Wang Z
AD  - Institute of Advanced Materials, Jiangxi Normal University, 99 Ziyang Avenue, 
      Nanchang, Jiangxi Province 330022, China.
FAU - Endo, Morinobu
AU  - Endo M
AD  - Institute of Carbon Science and Technology, Shinshu University, 4-17-1, Wakasato, 
      Nagano 380-8553, Japan.
LA  - eng
PT  - Journal Article
DEP - 20200829
PL  - United States
TA  - J Colloid Interface Sci
JT  - Journal of colloid and interface science
JID - 0043125
SB  - IM
OTO - NOTNLM
OT  - Absorption
OT  - Aerogel deodorizer
OT  - Air pollution
OT  - Ammonia
OT  - Carbon nanotubes
OT  - Cellulose nanofiber
OT  - Hydrogen sulfide
OT  - Methyl mercaptan
OT  - Transition metal divalent ions
OT  - Trimethylamine
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/09/15 06:00
MHDA- 2020/09/15 06:01
CRDT- 2020/09/14 20:14
PHST- 2020/05/16 00:00 [received]
PHST- 2020/08/21 00:00 [revised]
PHST- 2020/08/25 00:00 [accepted]
PHST- 2020/09/15 06:00 [pubmed]
PHST- 2020/09/15 06:01 [medline]
PHST- 2020/09/14 20:14 [entrez]
AID - S0021-9797(20)31146-2 [pii]
AID - 10.1016/j.jcis.2020.08.100 [doi]
PST - ppublish
SO  - J Colloid Interface Sci. 2021 Jan 15;582(Pt B):950-960. doi: 
      10.1016/j.jcis.2020.08.100. Epub 2020 Aug 29.