Self-assembly of porphyrin on the surface of a novel composite high performance photocatalyst for the degradation of organic dye from water: Characterization and performance evaluation

Self-Assembly of Porphyrin Nanofibers on ZnO Nanoparticles for the Enhanced Photocatalytic Performance for Organic Dye Degradation

“…The ZnO/TCPP nanofiber composite was fabricated using reprecipitation self-assembly (acid−base neutralization) approach. 37 The porphyrin solution was obtained by dissolving 8 mg of TCPP precursor in 2 mL of 0.2 M NaOH. Various amounts of ZnO nanoparticles with the TCPP/ZnO ratios in the range of 1:1−1:25 were added to the TCPP solution.…”

“…The ZnO/TCPP nanofiber composite was fabricated using reprecipitation self-assembly (acid–base neutralization) approach . The porphyrin solution was obtained by dissolving 8 mg of TCPP precursor in 2 mL of 0.2 M NaOH.…”

“…Recently, many organic semiconductors have attracted the attention of scientists for photocatalysis because they can effectively harvest photons with energy in the visible region of the spectrum. Among these, nanostructured porphyrins with a structure similar to that of chlorophyll pigments in plants can be easily fabricated and utilized as photocatalysts to remove contaminants in wastewater. − Supramolecular self-assembly of molecules from the basic building blocks of monomeric porphyrin molecules is a common approach used to synthesize nanostructured porphyrins. − Based on the structure of the porphyrin derivatives, self-assembly of the porphyrin supramolecular can be implemented via reprecipitation and surfactant assistance using ionic solvents. − Many nanostructured porphyrins with controlled morphologies have been reported and utilized as photocatalysts with high photocatalytic performance. − However, to improve the photocatalytic efficiency and stability, the combination of porphyrin nanomaterials with inorganic semiconductors is usually employed. − This combination enables the resultant composite to absorb the photon energy over a wide range of light spectra with enhanced charge separation because of charge transfer between the semiconductor interface.…”

Crystalline Covalent Organic Frameworks Based on Mixed Metallo- and Tetrahydroporphyrin Monomers for Use as Efficient Photocatalysts in Dye Pollutant Removal

“…Owing to the presence of the conjugated 18 π-electron macrocyclic rings, porphyrin compounds exhibit not just excellent coordination abilities that allow the incorporation of different metal ions in their inner core for the catalysis but also distinctive photophysical and electronic properties including strong absorption in the visible region. Thus, porphyrin and its metal complexes have recently been widely employed as rigid building blocks in the construction of porous polymers for use in efficient visible-light-driven photocatalytic processes such as photocatalytic CO 2 reduction, − hydrogen evolution, , oxygen production, , and removal of water pollutants. − …”

Synthesis of New Cobalt(III) Meso-Porphyrin Complex, Photochemical, X-ray Diffraction, and Electrical Properties for Photovoltaic Cells

“…If the absorbed photons have an energy greater than the energy difference between the valence and the conduction bands, electron-hole pairs are formed in the semiconductor (holes in the BV band and electrons in the BC band). Notably, porphyrin complexes have been successfully tested as catalysts in the chemical and heterogeneous photocatalysis degradation of organic dyes [25][26][27].…”