PMID- 32883083
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20201020
LR  - 20201020
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 36
IP  - 39
DP  - 2020 Oct 6
TI  - Synthesis of Silanol-Rich MCM-48 with Mixed Surfactants and Their Application in 
      Acetone Adsorption: Equilibrium, Kinetic, and Thermodynamic Studies.
PG  - 11528-11537
LID - 10.1021/acs.langmuir.0c01933 [doi]
AB  - Mesoporous silica MCM-48 with rich silanol was prepared using 
      polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide (CTAB) as mixed 
      templates, and the dynamic adsorption performance of acetone was evaluated by 
      testing breakthrough curves. The mixed micelle formed by CTAB and PVP, as well as 
      the hydrogen bond between the carbonyl group of PVP and silanol group affected 
      the condensation process of Si-OH group during the formation of mesoporous 
      structure, resulting in the increase of Si-OH group number on the surface of 
      MCM-48. Compared with MCM-48 synthesized by single template (CTAB), the acetone 
      adsorption capacity of MCM-48 (1:3) synthesized by mixed templates (PVP:CTAB = 
      1:3) improved by 23.86%, which was attributed to the increase of silanol group 
      amount and the decrease of pore size. In addition, Bangham model had the highest 
      goodness of fit to describe the adsorption process among four kinetic models for 
      the adsorbents, conforming to the mechanism of pore diffusion. The Langmuir and 
      Freundlich models were used to fit the adsorption isotherm data, and the 
      Freundlich model could better describe the adsorption of acetone. Freundlich 
      model fitting results showed that MCM-48 with rich silanol had a strong affinity 
      for acetone, and the adsorption of acetone on MCM-48 belonged to multilayer 
      adsorption. The thermodynamic results showed that the adsorption of MCM-48 for 
      acetone was physical adsorption, and the adsorption behavior was exothermic. This 
      work provided insight into how the inherent properties of an adsorbent and 
      environmental factors (including initial concentration and adsorption 
      temperature) affected the adsorption performance of ketones, thus more ideas 
      could be provided for the accurate design of adsorbents. Furthermore, 
      silanol-rich MCM-48 synthesized by mixed templates is expected to be a promising 
      adsorbent for acetone removal.
FAU - Guo, Miao
AU  - Guo M
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Liu, Qingling
AU  - Liu Q
AUID- ORCID: 0000-0002-5058-883X
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Lu, Shuangchun
AU  - Lu S
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Han, Rui
AU  - Han R
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Fu, Kaixuan
AU  - Fu K
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Song, Chunfeng
AU  - Song C
AUID- ORCID: 0000-0002-9617-8297
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
FAU - Ji, Na
AU  - Ji N
AUID- ORCID: 0000-0001-5444-3358
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
FAU - Lu, Xuebin
AU  - Lu X
AUID- ORCID: 0000-0002-6901-027X
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
FAU - Ma, Degang
AU  - Ma D
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
FAU - Liu, Caixia
AU  - Liu C
AD  - Tianjin Key Lab of Indoor Air Environmental Quality Control, School of 
      Environmental Science and Technology, Tianjin University, Tianjin, 300350, China.
AD  - State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20200917
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
SB  - IM
EDAT- 2020/09/05 06:00
MHDA- 2020/09/05 06:01
CRDT- 2020/09/05 06:00
PHST- 2020/09/05 06:00 [pubmed]
PHST- 2020/09/05 06:01 [medline]
PHST- 2020/09/05 06:00 [entrez]
AID - 10.1021/acs.langmuir.0c01933 [doi]
PST - ppublish
SO  - Langmuir. 2020 Oct 6;36(39):11528-11537. doi: 10.1021/acs.langmuir.0c01933. Epub 
      2020 Sep 17.