TY - JOUR
T1 - Synthesis and Characterization of BiOCl Powders with Soft Templates
AU - Ramírez-Meneses, E.
AU - Valencia-Barrón, J. P.
AU - Hernández-Pérez, M. A.
AU - Domínguez-Crespo, M. A.
AU - Torres-Huerta, A. M.
AU - Palacios-Gonzalez, E.
N1 - Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Bismuth oxychloride (BiOCl) powders were synthesized via a hydro/solvothermal method from BiCl3. Synthesis were performed in the presence of different capping agents namely polyvinylpyrrolidone (PVP), ethylenediamine (C2H4(NH2)2) or dextrose (C6H12O6). The reaction media, nature of capping agent, weight or molar ratio Bi:capping agent and temperature play an important role in the formation of well-defined morphology of BiOCl powders, which varies from melt crystals to plate-like structures. The as-obtained BiOCl/capping agent systems were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy and IR spectroscopy. Among the selected capping agents, the C2H4(NH2)2 promote a defined morphology of the BiOCl crystals being a potential soft template. BiOCl/C2H4(NH2)2 system synthesized in aqueous medium clearly illustrate the effect of the Bi:C2H4(NH2)2 ratio on the morphology of BiOCl powders. The photocatalytic activity of BiOCl/C2H4(NH2)2 (1:0.5 molar ratio or 0.5 equiv.) and TiO2:BiOCl composites were evaluated on the degradation of methylene blue (MB) under UV–Vis light irradiation and compared with commercial TiO2 (Degussa, P25). It was pointed out that BiOCl powders with well-defined rectangular plate-like morphology have a higher photocatalytic activity during MB photodegradation in comparison to TiO2:BiOCl composites and similar to commercial TiO2.
AB - Bismuth oxychloride (BiOCl) powders were synthesized via a hydro/solvothermal method from BiCl3. Synthesis were performed in the presence of different capping agents namely polyvinylpyrrolidone (PVP), ethylenediamine (C2H4(NH2)2) or dextrose (C6H12O6). The reaction media, nature of capping agent, weight or molar ratio Bi:capping agent and temperature play an important role in the formation of well-defined morphology of BiOCl powders, which varies from melt crystals to plate-like structures. The as-obtained BiOCl/capping agent systems were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy and IR spectroscopy. Among the selected capping agents, the C2H4(NH2)2 promote a defined morphology of the BiOCl crystals being a potential soft template. BiOCl/C2H4(NH2)2 system synthesized in aqueous medium clearly illustrate the effect of the Bi:C2H4(NH2)2 ratio on the morphology of BiOCl powders. The photocatalytic activity of BiOCl/C2H4(NH2)2 (1:0.5 molar ratio or 0.5 equiv.) and TiO2:BiOCl composites were evaluated on the degradation of methylene blue (MB) under UV–Vis light irradiation and compared with commercial TiO2 (Degussa, P25). It was pointed out that BiOCl powders with well-defined rectangular plate-like morphology have a higher photocatalytic activity during MB photodegradation in comparison to TiO2:BiOCl composites and similar to commercial TiO2.
KW - BiOCl
KW - Capping agents
KW - Hydrothermal
KW - Soft templates
KW - Solvothermal
UR - http://www.scopus.com/inward/record.url?scp=85048805732&partnerID=8YFLogxK
U2 - 10.1007/s10904-018-0902-z
DO - 10.1007/s10904-018-0902-z
M3 - Artículo
SN - 1574-1443
VL - 28
SP - 2350
EP - 2364
JO - Journal of Inorganic and Organometallic Polymers and Materials
JF - Journal of Inorganic and Organometallic Polymers and Materials
IS - 6
ER -