@article{Panithipongwut kowalsk_buntee_Pattananuwat_2021, place={Bangkok, Thailand}, title={Characteristic of fluorescence spectroscopy response of tetrakis (4-sulfonatophenyl) porphyrin doped polyaniline toward Fe3+ ion}, volume={31}, url={https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/1209}, DOI={10.55713/jmmm.v31i3.1209}, abstractNote={<p><span style="font-weight: 400;">Here, we report a selective colorimetric chemosensor toward Fe</span><span style="font-weight: 400;">3+ </span><span style="font-weight: 400;">ion detection by the combination of sensitizer and hole transport consisting of polyaniline and tetrakis (4-sulfonatophenyl) porphyrin. Interestingly, the presence of tetrakis (4-sulfonatophenyl) porphyrin moiety on polyaniline can enhance the optical limiting properties of polyaniline, allowing the fluorophore signal for chemical sensor. The performance sensing behaviors toward metal ion are observed by the ultraviolet-Visible and fluorescence properties. The sensing of polyaniline-tetrakis (4-sulfonatophenyl) porphyrin toward Fe</span><span style="font-weight: 400;">3+</span><span style="font-weight: 400;"> ion exhibits a linear response in the concentration range of 0.01 M to 1.0 </span><span style="font-weight: 400;">×</span><span style="font-weight: 400;"> 10</span><span style="font-weight: 400;">-4</span><span style="font-weight: 400;"> M over the other transition metals (Cu</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, Ni</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, Zn</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, Pb</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, Cd</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, Mn</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;">, B</span><span style="font-weight: 400;">2+</span><span style="font-weight: 400;"> and Ag</span><span style="font-weight: 400;">+</span><span style="font-weight: 400;">). A turn-off color of fluorescence emission can be applied for the rapid visualization of Fe</span><span style="font-weight: 400;">3+</span><span style="font-weight: 400;"> ion. The effective response of pH-independent Fe</span><span style="font-weight: 400;">3+</span><span style="font-weight: 400;"> ion sensing of polyaniline-tetrakis (4-sulfonatophenyl) porphyrin by quenching fluorescence reveals sufficiency in range of 4.0-12.0.  </span></p>}, number={3}, journal={Journal of Metals, Materials and Minerals}, author={Panithipongwut kowalsk , Chatr and buntee , Meatawadee and Pattananuwat, Prasit}, year={2021}, month={Sep.}, pages={143–151} }