PMID- 37137458
OWN - NLM
STAT- MEDLINE
DCOM- 20230619
LR  - 20231116
IS  - 1096-0953 (Electronic)
IS  - 0013-9351 (Linking)
VI  - 231
IP  - Pt 1
DP  - 2023 Aug 15
TI  - In situ preparation of TiO(2)/f-MWCNT catalyst using Pluronic F127 assisted 
      sol-gel process for sonocatalytic degradation of methylene blue.
PG  - 115972
LID - S0013-9351(23)00764-8 [pii]
LID - 10.1016/j.envres.2023.115972 [doi]
AB  - In this study, titanium dioxide- Pluronics @F127/functionalized -multi walled 
      carbon nanotubes (TiO(2)-F127f-/MWCNT) nanocatalysts were prepared, 
      characterized, and used in methylene blue (MB) degradation under ultrasonic 
      conditions. The characterization studies were performed using TEM, SEM, and XRD 
      analyses to reveal the morphological and chemical properties of TiO(2)-F127/MWCNT 
      nanocatalysts. To detect the optimum parameters for MB degradation using 
      TiO(2)-F127/f-MWCNT nanocatalysts, several experimental parameters were conducted 
      at various conditions such as different temperatures, pH, catalyst amount, 
      hydrogen peroxide (H(2)O(2)) concentration, and various reaction contents. 
      Transmission electron microscopy (TEM) analyses showed that TiO(2)-F127/f-MWCNT 
      nanocatalysts consisted of a homogenous structure and have a 12.23 nm particle 
      size. The crystalline particle size of TiO(2)-F127/MWCNT nanocatalysts was found 
      to be 13.31 nm. Scanning electron microscope (SEM) analyses revealed the surface 
      structure of TiO(2)-F127/f-MWCNT nanocatalysts turned to be modified after TiO(2) 
      loaded on MWCNT. Under the optimum conditions; pH: 4, MB concentration: 25 mg/L, 
      H(2)O(2) concentration: 30 mol/L, reaction time: and catalyst dose: 24 mg/L, 
      chemical oxygen demand (COD) removal efficiency reached a maximum of 92%. To 
      detect the radical effectiveness, three scavenger solvents were tested. Reuse 
      experiments revealed that TiO(2)-F127/f-MWCNT nanocatalysts retained 84.2% 
      catalytical activity after 5 cycles. Gas chromatography-mass spectrometry (GC-MS) 
      was successfully used to identify the generated intermediates. Based on the 
      experimental results, it has been suggested that *OH radicals are the main active 
      species responsible for the degradation reaction in the presence of the 
      TiO(2)-F127/f-MWCNT nanocatalysts.
CI  - Copyright (c) 2023 Elsevier Inc. All rights reserved.
FAU - Yildiz, Adnan
AU  - Yildiz A
AD  - Department of Chemistry, Education Faculty, Yuzuncu Yil University, Van, Turkey.
FAU - Yesilbas, Omer Faruk
AU  - Yesilbas OF
AD  - Department of Chemistry, Education Faculty, Yuzuncu Yil University, Van, Turkey.
FAU - Nas, Mehmet Salih
AU  - Nas MS
AD  - Department of Chemistry, Education Faculty, Yuzuncu Yil University, Van, Turkey; 
      Department of Organic Agriculture Management, Faculty of Applied Sciences, Igdir 
      University, TR-76000, Igdir, Turkey.
FAU - Calimli, Mehmet Harbi
AU  - Calimli MH
AD  - Research Laboratory Application and Research Center (ALUM), Igdir University, 
      TR-76000, Igdir, Turkey; Department of Medical Services and Techniques, Tuzluca 
      Vocational School, Igdir University, TR- 76000, Igdir, Turkey. Electronic 
      address: calimli.6500@gmail.com.
FAU - Bayat, Ramazan
AU  - Bayat R
AD  - Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, 
      Turkey; Department of Materials Science & Engineering, Faculty of Engineering, 
      Dumlupinar University, Kutahya, Turkey.
FAU - Sen, Fatih
AU  - Sen F
AD  - Sen Research Group, Department of Biochemistry, Dumlupinar University, Kutahya, 
      Turkey. Electronic address: fatihsen1980@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20230501
PL  - Netherlands
TA  - Environ Res
JT  - Environmental research
JID - 0147621
RN  - 15FIX9V2JP (titanium dioxide)
RN  - 106392-12-5 (Poloxamer)
RN  - T42P99266K (Methylene Blue)
RN  - 0 (Nanotubes, Carbon)
RN  - 9038-95-3 (UCON 50-HB-5100)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - D1JT611TNE (Titanium)
SB  - IM
MH  - *Poloxamer
MH  - Methylene Blue/chemistry
MH  - *Nanotubes, Carbon/chemistry
MH  - Hydrogen Peroxide
MH  - Catalysis
MH  - Titanium/chemistry
OTO - NOTNLM
OT  - Degradation
OT  - Hydrothermal
OT  - Methylene blue
OT  - Nanocatalyst
OT  - Pluronic F-127
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- 2023/05/04 00:42
MHDA- 2023/06/19 13:08
CRDT- 2023/05/03 19:19
PHST- 2022/12/16 00:00 [received]
PHST- 2023/04/17 00:00 [revised]
PHST- 2023/04/20 00:00 [accepted]
PHST- 2023/06/19 13:08 [medline]
PHST- 2023/05/04 00:42 [pubmed]
PHST- 2023/05/03 19:19 [entrez]
AID - S0013-9351(23)00764-8 [pii]
AID - 10.1016/j.envres.2023.115972 [doi]
PST - ppublish
SO  - Environ Res. 2023 Aug 15;231(Pt 1):115972. doi: 10.1016/j.envres.2023.115972. 
      Epub 2023 May 1.