Direct Z-scheme P–TiO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> heterojunction for the photocatalytic degradation of sulfa antibiotics
Yongheng Dai, Huayu Yuan, Jiang Li, Qi Su, Qianwen Yi, Yuntao Zhang
Abstract
alone. The internal electron transfer paths and mechanisms for the composites are revealed by ESR radical detection experiments, XPS energy spectrum shifts, valence band positions and active material quenching experiments. Furthermore, the degradation products are analyzed by GC-MS, and four possible degradation pathways for sulfonamide pollutants are proposed. This photocatalyst provides new insights into the fundamental aspects of the photocatalytic degradation mechanism for composite pollutants, as well as new ideas for practical environmental applications.
Topics & Concepts
PhotocatalysisDegradation (telecommunications)HeterojunctionX-ray photoelectron spectroscopyCalcinationSulfadiazineMaterials scienceChemical engineeringChemistryPhotochemistryNuclear chemistryCatalysisAntibioticsOrganic chemistryComputer scienceOptoelectronicsEngineeringTelecommunicationsBiochemistryAdvanced Photocatalysis TechniquesPharmaceutical and Antibiotic Environmental ImpactsTiO2 Photocatalysis and Solar Cells