Photodegradation of 2,4-dichlorophenol by supported Pd(X2) catalyst (X = Cl, Br, N3): a HOMO manipulating point of view

Abstract

Three different palladium(II) complexes with ligands containing nitrogenized aromatic rings were investigated theoretically as model to obtain the computational band gap energies. The results demonstrated promising possibility for designing palladium(II) complexes with photocatalytic properties at visible light irradiation. Deliberated products were synthesized via grafting on the silica-coated FeO magnetic nanoparticles (FeO@SiO). Formation of complexes on the surface of FeO@SiO, as insoluble and reusable photocatalysts, was proved by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric (TGA), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), transmission electron microscope (TEM), and scanning electron microscopy (SEM) analyses. The trend of the band gap energies of prepared structures was calculated via experimental and theoretical methods. The photocatalytic capability of these nanoparticles was investigated in degradation of 2,4-dichlorophenol by means of HPLC analysis. A tentative reaction mechanism for the formation of intermediates was proposed. Graphical abstract ᅟ.

Step‐by‐step synthesis of copper(I) complex supported on platinum nanoparticle‐decorated mesoporous silica hollow spheres and its remarkable catalytic performance in Sonogashira coupling reaction

“…Furthermore, a broad peak around 3200–3600 cm −1 and the peak at 1659 cm −1 correspond to the –O–H stretching vibration and H–O–H bending vibration due to the existence of surface hydroxyl groups and adsorbed water, respectively 37 . In the FT‐IR spectrum of Schiff base‐functionalized sample (Pt‐MSHSs‐L), the aromatic C–H groups and aliphatic CH 2 stretching vibration bands are located at 2800–2950 cm −1 38 . Moreover, the C=C stretching vibrations were observed at the 1571 cm −1 region 39 .…”

Zn (II)-porphyrin-based photochemically green synthesis of novel ZnTPP/Cu nanocomposites with antibacterial activities and cytotoxic features against breast cancer cells

“…S1 ). The hydroxylation intermediates formed from the environmental water and O 2 during the oxidation process, is the basis of photodegradation mechanism 37 , 38 .…”

Effect of Solvothermal Time to Characteristics and Performance of Photocatalyst Bismuth‐Rich Oxyiodide for Dye Decolorization

“…The use of bismuth‐based compounds has experienced significant development in the field of photocatalytic due to their unique structure and properties so that it has a good and stable photocatalytic performance during the reaction [1] . Bismuth‐based materials stand out as valuable alternatives among photocatalysts active not only in UV light but also in the visible spectrum, alongside well‐known options like TiO 2 , [2,3] ZnO, [4] and Pd(X 2 ) [5] . Various bismuth‐based compounds have been reported as good photocatalysts such as Bi 2 O 3 , [6] Bi 2 WO 6 , [7] BiOBr, [8] and BiVO 4 [9] .…”