Publications by authors named "T Pandiyan"
J Hazard Mater
March 2020
Article Synopsis
- * Various jarosites were prepared and characterized using analytical methods, while dissolution kinetics were analyzed using the Shrinking Core Kinetic Model (SCKM) under varying temperatures and pH levels.
- * Results indicated that temperature significantly affects jarosite stability, with extreme pH values influencing the dissolution, leading to the proposal of a kinetic equation to predict the jarosites' lifespan.
Article Synopsis
- The study focuses on the synthesis of two oligophenyleneimine pentamers, DAFCHO and FDACHO, which contain terminal aldehydes, using mechanochemistry methods and various diamines.*
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- The compounds were characterized using spectroscopy techniques (¹H and C-NMR, FT-IR, mass spectrometry) and displayed interesting photochromic properties in chloroform when exposed to sunlight, with notable energy band gap values measured.*
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- Electrochemical studies revealed their potential as organic semiconductors, with HOMO and LUMO values indicating favorable electronic properties, and findings were further supported by Density Functional Theory (DFT) calculations.*
J Mol Model
November 2017
Article Synopsis
- The study investigated how effective 2,6-bis[((2-pyridylmethyl)oxy)methyl)]pyridine (BPMMP) is at preventing corrosion of mild carbon steel in hydrochloric acid (HCl), revealing significant reductions in both cathodic and anodic currents during polarization studies.
- Impedance analysis indicated that the effectiveness of BPMMP as a corrosion inhibitor was directly related to its concentration, and recurrence analysis showed changes in Shannon entropy that suggested a higher stability in the presence of the inhibitor.
- The research also utilized density functional theory (DFT) to explore BPMMP's interactions with iron clusters, revealing insights into the structural and electronic behavior of BPMMP before and after forming complexes with iron
Article Synopsis
- The study highlights the environmental impact of jarosite compounds, particularly how they can affect the mobility of toxic elements like lead and arsenic in water and soil.
- It focuses on the dissolution rates of K-Cr(VI)-jarosites, revealing that temperature significantly influences these rates, followed by pH levels, but not the substitution of certain ions within the compound.
- The findings suggest that extreme pH and temperature conditions lead to higher dissolution rates, which is important for understanding the stability and environmental behavior of these compounds.
Article Synopsis
- Two phenyleneimine oligomers, OIC1MS and OIC2MS, were synthesized using both traditional and mechanochemical methods.
- These compounds were characterized using techniques like FT-IR and NMR, and their optical properties were examined with UV-visible spectroscopy, revealing that OIC2MS has notable photochromic characteristics.
- Additionally, their structural and electronic properties were studied using TD-DFT, indicating that mechanosynthesis is a highly effective approach for creating these tetraimines.
