TY - JOUR
T1 - Thermal Diffusivity Study of Organic Dyes with TiO2 Nanoparticles by Photothermal Techniques
AU - Secundino-Sánchez, O.
AU - Luna-Sánchez, J. L.
AU - Jiménez-Pérez, J. L.
AU - Sánchez-Ramırez, J. F.
AU - Diaz-Reyes, J.
AU - Correa-Pacheco, Z. N.
AU - Carbajal-Valdez, R.
AU - Gutiérrez-Fuentes, R.
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2022/6
Y1 - 2022/6
N2 - A photothermal study by means of thermal lens (TL) was used to monitor the detoxification of organic wastewater through bleaching of rhodamine 6G (R6G) with titanium dioxide nanoparticles (TiO2-NPs) and in the presence of ultraviolet radiation. Thermal diffusivity change of the nanofluid with irradiation time was investigated by fitting TL experimental data to a theoretical model. Thermal diffusivity decreases as irradiation time increases. The obtained diffusivity values were 25.0 ± 0.6 × 10–4 cm2·s−1, 24.2 ± 0.5 × 10–4 cm2·s−1, 23.4 ± 0.6 × 10–4 cm2·s−1, 22.4 ± 0.6 × 10–4 cm2·s−1, 21.1 ± 0.3 × 10–4 cm2·s−1, and 19.7 ± 0.2 × 10–4 cm2·s−1, for irradiation times of 0, 15, 30, 45, 60, and 75 min, respectively. In this work, main characterization of thermal properties was carried out by thermal lens (TL) for thermal diffusivity measurement. Other techniques such as X-ray diffraction (XRD), Raman Spectroscopy, UV–Vis spectroscopy, and transmission electron microscopy (TEM) were used for complementary characterization. These studies are of great interest in catalytic sewage water pollutants’ bleaching applications.
AB - A photothermal study by means of thermal lens (TL) was used to monitor the detoxification of organic wastewater through bleaching of rhodamine 6G (R6G) with titanium dioxide nanoparticles (TiO2-NPs) and in the presence of ultraviolet radiation. Thermal diffusivity change of the nanofluid with irradiation time was investigated by fitting TL experimental data to a theoretical model. Thermal diffusivity decreases as irradiation time increases. The obtained diffusivity values were 25.0 ± 0.6 × 10–4 cm2·s−1, 24.2 ± 0.5 × 10–4 cm2·s−1, 23.4 ± 0.6 × 10–4 cm2·s−1, 22.4 ± 0.6 × 10–4 cm2·s−1, 21.1 ± 0.3 × 10–4 cm2·s−1, and 19.7 ± 0.2 × 10–4 cm2·s−1, for irradiation times of 0, 15, 30, 45, 60, and 75 min, respectively. In this work, main characterization of thermal properties was carried out by thermal lens (TL) for thermal diffusivity measurement. Other techniques such as X-ray diffraction (XRD), Raman Spectroscopy, UV–Vis spectroscopy, and transmission electron microscopy (TEM) were used for complementary characterization. These studies are of great interest in catalytic sewage water pollutants’ bleaching applications.
KW - Bleaching
KW - Nanoparticles
KW - Rhodamine 6G
KW - Thermal diffusivity
KW - Thermal lens
KW - Titanium dioxide
UR - http://www.scopus.com/inward/record.url?scp=85127493967&partnerID=8YFLogxK
U2 - 10.1007/s10765-022-03008-x
DO - 10.1007/s10765-022-03008-x
M3 - Artículo
AN - SCOPUS:85127493967
SN - 0195-928X
VL - 43
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 6
M1 - 83
ER -