PMID- 32273124
OWN - NLM
STAT- MEDLINE
DCOM- 20200501
LR  - 20200501
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 249
DP  - 2020 Jun
TI  - Photodegradation of 17 alpha-methyltestosterone using TiO(2) -Gd(3+) and 
      TiO(2)-Sm(3+) photocatalysts and simulated solar radiation as an activation 
      source.
PG  - 126497
LID - S0045-6535(20)30690-1 [pii]
LID - 10.1016/j.chemosphere.2020.126497 [doi]
AB  - According to the search in the state of the art, no antecedents were found in 
      which photocatalytic degradation of 17alpha-methyltestosterone (MT) hormone has been 
      carried out using doped-TiO(2). Nor have the transformation products formed 
      during the heterogeneous photocatalysis (FH) been identified. Therefore, in this 
      study we analyzed the photocatalytic degradation of the MT in aqueous solution, 
      using doped TiO(2) with Sm(3+) or Gd(3+) at 0.3 and 0.5 %wt. Thermal treatment 
      temperature (500  degrees C and 800  degrees C) and MT (20 mgL(-1)) mineralization were also 
      studied. All photocatalysts were synthesized using the sol-gel method and 
      characterized by X-ray Diffraction (XRD), Specific Surface Area (BET), 
      Ultraviolet-visible Spectroscopy (UV-vis), High-Resolution Transmission Electron 
      Microscope/Energy-Dispersive X-ray analysis (HRTEM/EDS) and, X-ray photoelectron 
      spectroscopy (XPS), and photoluminescence (PL). MT mineralization was followed by 
      a total organic carbon analyzer (TOC). The route of the photocatalytic 
      mineralization of the hormone was obtained from the analysis of intermediate 
      compounds determined by high performance liquid chromatography coupled to mass 
      spectrometry (LC-TOF-MS). The results showed that TM and its transformation 
      products were not degraded by photolysis. However, the degree of mineralization 
      of the hormone was greater when the photocatalytic process was used. The 
      photocatalytic efficiency was related to the dopant concentration, dopant type 
      and thermal treatment. Therefore, Sm (0.3%)/TiO(2) calcined at 500  degrees C showed the 
      best performance for photocatalytic mineralization of MT.
CI  - Copyright (c) 2020. Published by Elsevier Ltd.
FAU - Arevalo-Perez, Juan Carlos
AU  - Arevalo-Perez JC
AD  - Universidad Juarez Autonoma de Tabasco, Centro de Investigacion de Ciencia y 
      Tecnologia Aplicada de Tabasco (CICTAT), DACB, Laboratorio de Nanomateriales 
      Cataliticos Aplicados al Desarrollo de Fuentes de Energia y Remediacion 
      Ambiental, Km.1 carretera Cunduacan-Jalpa de Mendez, C.P. 86690, Cunduacan, 
      Tabasco, Mexico.
FAU - Cruz-Romero, Durvel de la
AU  - Cruz-Romero D
AD  - Universidad Juarez Autonoma de Tabasco, Centro de Investigacion de Ciencia y 
      Tecnologia Aplicada de Tabasco (CICTAT), DACB, Laboratorio de Nanomateriales 
      Cataliticos Aplicados al Desarrollo de Fuentes de Energia y Remediacion 
      Ambiental, Km.1 carretera Cunduacan-Jalpa de Mendez, C.P. 86690, Cunduacan, 
      Tabasco, Mexico.
FAU - Cordero-Garcia, Adrian
AU  - Cordero-Garcia A
AD  - Universidad Juarez Autonoma de Tabasco, Centro de Investigacion de Ciencia y 
      Tecnologia Aplicada de Tabasco (CICTAT), DACB, Laboratorio de Nanomateriales 
      Cataliticos Aplicados al Desarrollo de Fuentes de Energia y Remediacion 
      Ambiental, Km.1 carretera Cunduacan-Jalpa de Mendez, C.P. 86690, Cunduacan, 
      Tabasco, Mexico.
FAU - Lobato-Garcia, Carlos E
AU  - Lobato-Garcia CE
AD  - Universidad Juarez Autonoma de Tabasco, Centro de Investigacion de Ciencia y 
      Tecnologia Aplicada de Tabasco (CICTAT), DACB, Laboratorio de Nanomateriales 
      Cataliticos Aplicados al Desarrollo de Fuentes de Energia y Remediacion 
      Ambiental, Km.1 carretera Cunduacan-Jalpa de Mendez, C.P. 86690, Cunduacan, 
      Tabasco, Mexico.
FAU - Aguilar-Elguezabal, Alfredo
AU  - Aguilar-Elguezabal A
AD  - Centro de Investigacion en Materiales Avanzados, CIMAV. Av. Miguel de Cervantes 
      120. Complejo Industrial, Chihuahua, C.P. 31109, Mexico.
FAU - Torres-Torres, Jose Gilberto
AU  - Torres-Torres JG
AD  - Universidad Juarez Autonoma de Tabasco, Centro de Investigacion de Ciencia y 
      Tecnologia Aplicada de Tabasco (CICTAT), DACB, Laboratorio de Nanomateriales 
      Cataliticos Aplicados al Desarrollo de Fuentes de Energia y Remediacion 
      Ambiental, Km.1 carretera Cunduacan-Jalpa de Mendez, C.P. 86690, Cunduacan, 
      Tabasco, Mexico. Electronic address: gilberto.torres@ujat.mx.
LA  - eng
PT  - Journal Article
DEP - 20200314
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 15FIX9V2JP (titanium dioxide)
RN  - D1JT611TNE (Titanium)
RN  - V9EFU16ZIF (Methyltestosterone)
SB  - IM
MH  - Catalysis
MH  - Methyltestosterone/*chemistry
MH  - Microscopy, Electron, Transmission
MH  - Photoelectron Spectroscopy
MH  - *Photolysis
MH  - Titanium/chemistry
MH  - X-Ray Diffraction
OTO - NOTNLM
OT  - 17alpha-methyltestosterone
OT  - Photocatalysis
OT  - Rare-earth
OT  - Sunlight
OT  - TiO(2)
EDAT- 2020/04/11 06:00
MHDA- 2020/05/02 06:00
CRDT- 2020/04/11 06:00
PHST- 2019/11/14 00:00 [received]
PHST- 2020/03/06 00:00 [revised]
PHST- 2020/03/13 00:00 [accepted]
PHST- 2020/04/11 06:00 [pubmed]
PHST- 2020/05/02 06:00 [medline]
PHST- 2020/04/11 06:00 [entrez]
AID - S0045-6535(20)30690-1 [pii]
AID - 10.1016/j.chemosphere.2020.126497 [doi]
PST - ppublish
SO  - Chemosphere. 2020 Jun;249:126497. doi: 10.1016/j.chemosphere.2020.126497. Epub 
      2020 Mar 14.