Photocatalytic properties of Bi2O2CO3 nanosheets synthesized via a surfactant-assisted hydrothermal method

• Published in: Materials science in semiconductor processing Vol. 16; no. 6; pp. 1650 - 1654
• Main Authors: Liang, H.Y., Yang, Y.X., Tang, J.C., Ge, M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2013; Elsevier
• Subjects: Applied sciences; Bi2O2CO3; Catalysis; Catalysts: preparations and properties; Chemistry; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Fractures; General and physical chemistry; Materials science; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; mechanism; Metals. Metallurgy; nanosheets; Nanostructure; Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Photocatalysis; Photochemistry; photodegradation; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Physics; Scanning electron microscopy; Semiconductors; Sodium; Sulfates; Sunlight; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; photodegradation; mechanism; Bi2O2CO3; nanosheets; Nanosheet; Photochemical reaction; Surfactant; Surface analysis; O; Reflection spectrum; Field electron microscopy; Optical properties; Sodium sulfate; Optical characteristic; Radiation effect; Photochemical degradation; Damaging; Scanning electron microscopy; Nanoplate; Oxygen; Diffuse reflection; Photocatalysis; Bi; CO; X ray diffraction; Hydrothermal growth; Transmission electron microscopy; Hydrothermal synthesis; Morphology; Ultraviolet spectrum; Surface area; Microstructure; Catalyst activity
• ISSN: 1369-8001; 1873-4081
• DOI: 10.1016/j.mssp.2013.04.007

Bi2O2CO3 nanosheets were synthesized via a facile sodium dodecyl sulfate (SDS)-assisted hydrothermal process. X-Ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) surface area analysis and UV-Vis diffuse reflectance spectroscopy techniques were used to investigate the phase structure, morphology and optical properties of the Bi2O2CO3 products. The SDS surfactant played an important role in the formation of Bi2O2CO3 nanosheets. As-synthesized Bi2O2CO3 nanosheets exhibited excellent photocatalytic activity for RhB degradation under irradiation with simulated sunlight. O2− radicals are considered to be the dominant active oxygen species in the photodegradation process.