Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Abstract

Monodispersed Bi 2 O 2 CO 3 nanoplates with an average width of 320 nm and thicknesses of 50-90 nm were successfully synthesized by a simple solvothermal method in a mixture solution of polyethylene glycol and H 2 O. The obtained nanoplates were characterized by means of XRD, FT-IR, SEM and TEM. The effect of surfactant sodium dodecyl benzene sulfonate on the morphology of Bi 2 O 2 CO 3 product was investigated. Under simulated solar light irradiation, Bi 2 O 2 CO 3 nanoplates exhibited superior photocatalytic activities towards the degradation of RhB as well as high chemical stability upon cycling photocatalytic test. The nanoplates also showed promising photodegradation ability for eliminating refractory pollutant of phenol. The excellent photocatalytic performance of Bi 2 O 2 CO 3 nanoplates as compared with P25-TiO 2 endows them as promising high efficiency photocatalysts.

Semiconductor nanomaterials for environmental applications

“…Additionally, it also has two non-stoichiometric phases Bi2O2.33 and Bi2O2.75 [553]. Apart from these oxides, CO ions is also reported in the literature [554,555]. Bi2O2 2+ ions along with CO layers orthogonal to the interleaved Bi-O linkages of Bi2O2 2+ ions in Bi2O2CO3.…”