Exploring the influence of safranin dye on optical, thermal and dielectric properties of TGA crystal for SSDL applications

Chaithra, G.; Deepthi, P. R.; Sultana, Wajeeha; Challa, Malathi; Sukhdev, Anu; Kumar, Parveen; Hemaraju, B. C.; Shanthi, J.

doi:10.1007/s10854-022-09466-1

Cited by 2 publications

(1 citation statement)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To gain a more comprehensive understanding of the potential applications and thermal performance of the synthesized PSF-Ph and nanocomposites, thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) were performed over a temperature range of 25 °C-1000 °C at a heating rate of 10 °C min −1 , as shown in figures 7(a)-(e) and 8(a)-(e). To the best of our knowledge, the TGA/DTG behavior of poly (safranine) or poly (phenosafranine) has not been investigated, but modified safranine with triglycine acetate has been studied [71]. The thermogram curves of both the bare copolymer and nanocomposites exhibited overlapping steps that could be distinguished into three weight loss steps.…”

Section: Thermal Studymentioning

confidence: 99%

Development of poly(safranine-co-phenosafranine)/GNPs/MWCNTs nanocomposites for quartz crystal microbalance sensor detection of arsenic (III) ions

Al-Sodies,

Asiri,

Ismail

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

\Contamination of drinking water by heavy metals is extremely dangerous to human health. The formation of a quartz crystal microbalance (QCM) sensor for the rapid and portable detection of harmful heavy metals, such as arsenic (As) ions, in water samples is detailed in this work. Equimolar ratio of safranine (SF) and phenosafranine (Ph) copolymers (PSF-Ph) were synthesized using a chemical oxidative polymerization approach. The copolymer was modified with multi-wall carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) in different percentages (1, 3, 5, and 10%) to formed nanocomposites of PSF-Ph/MWCNTs/GNPs. The thermal study of the nanocomposites displayed the final polymer decomposition temperatures (PDTfinal) values fell between 619 to 630°C and the nanocomposite with 10% loading exhibited the highest decomposition temperatures for T10, T30, and T50. Nanohybrids QCM sensor detected As(III) down to parts-per-billion levels based on the change in oscillation frequency. The sensor was tested on spiked water samples with different concentrations of As(III) (0-20 ppb). A strong linear correlation (R2≈0.99) of the frequency shift versus concentration with low detection limit (0.1 ppb) validated the quantitative detection capability of the sensor. This QCM platform with an optimal recognition ligand is a promising field-deployable tool for on-site arsenic analysis in water.

show abstract

Section: Thermal Studymentioning

confidence: 99%