We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Sn(IV)porphyrin-Anchored TiO2 Nanoparticles via Axial-Ligand Coordination for Enhancement of Visible Light-Activated Photocatalytic Degradation
Summary
Researchers fabricated a visible-light-active photocatalyst by anchoring Sn(IV)-porphyrin complexes to TiO2 nanoparticles via adipic acid linkage, finding significantly enhanced photocatalytic degradation of rhodamine B dye under visible light. The porphyrin-TiO2 composite extends light absorption into the visible spectrum while maintaining strong photocatalytic activity.
A visible-light-active photocatalyst, SnP/AA@TiO2, was fabricated by utilizing the coordination chemistry between the axial hydroxo-ligand in the (trans-dihydroxo)(5,10,15,20-tetraphenylporphyrinato)Sn(IV) complex (SnP) and adipic acid (AA) on the surface of TiO2 nanoparticles. The SnP center was strongly bonded to the surface of the TiO2 nanoparticles via the adipic acid linkage in SnP/AA@TiO2, as confirmed by various instrumental techniques. SnP/AA@TiO2 exhibited remarkably enhanced photocatalytic activity toward the degradation of rhodamine B dye (RhB) in aqueous solution under visible-light irradiation. The RhB degradation efficiency of SnP/AA@TiO2 was 95% within 80 min, with a rate constant of 0.0366 min−1. The high degradation efficiency, low catalyst loading and high reusability make SnP-anchored photocatalysts more efficient than other photocatalysts, such as TiO2 and SnP@TiO2.
Sign in to start a discussion.
More Papers Like This
Photocatalytic Performance of SiO2/CNOs/TiO2 to Accelerate the Degradation of Rhodamine B under Visible Light
A silicon dioxide/carbon nano-onion/titanium dioxide composite photocatalyst was developed and shown to efficiently break down the dye Rhodamine B under visible light. Photocatalytic materials like this have potential applications for breaking down plastic additives and microplastic-associated chemicals in contaminated water.
TiO2/g-C3N4 Visible-Light-Driven Photocatalyst for Methylene Blue Decomposition
Researchers synthesized TiO2/graphitic carbon nitride nanocomposites and demonstrated efficient visible-light photocatalytic degradation of methylene blue dye, with the heterojunction structure extending light absorption into the visible spectrum and improving charge separation compared to TiO2 alone.
A Review on Photocatalysis Used For Wastewater Treatment: Dye Degradation
Researchers reviewed metal oxide-based photocatalysts — materials that use light to break down pollutants — for treating dye-contaminated wastewater, highlighting how rare-earth doping and nanocomposite design can overcome the limitations of standard titanium dioxide catalysts and improve degradation efficiency under visible light.
Low Environmental Impact Remediation of Microplastics: Visible-Light Photocatalytic Degradation of PET Microplastics Using Bio-Inspired C,N-TiO2/SiO2 Photocatalysts
Researchers developed bio-inspired carbon and nitrogen co-doped TiO2/SiO2 photocatalysts capable of degrading PET microplastics under visible light, offering a low-energy alternative to UV-based photocatalysis for remediating microplastic contamination in aquatic environments.
Visible light photocatalytic degradation of HDPE microplastics using vanadium-doped titania
Researchers tested vanadium-doped titanium dioxide photocatalysts for degrading high-density polyethylene (HDPE) microplastics under visible light, finding that vanadium doping extended the photocatalytic response into the visible spectrum and enhanced degradation rates compared to undoped TiO2. The study advances solar-driven microplastic degradation as a potential remediation strategy.