Environmentally friendly room temperature synthesis and humidity sensing applications of nanostructured Bi2O2CO3

Temperature-induced phase changes in bismuth oxides and efficient photodegradation of phenol and p -chlorophenol

“…It was because the degradation of phenol and p-chlorophenol created a carbonateexisting environment. The ultimate products of mineralization (i.e., CO 2 or CO 3 2− ) were used as carbon source to react with Bi 2 O 4 and Bi 4 O 7 as bismuth-containing materials, resulting in the formation of Bi 2 O 2 CO 3 [42]. Therefore, the XRD results illustrated that the presence of Bi 2 O 2 CO 3 derived from the redox-sensitive Bi 2 O 4 and Bi 4 O 7 structures decreased the degradation performance in degradation of P and 4-CP, resulting in the deactivation of Bi 2 O 4 and Bi 4 O 7 .…”

In situ synthesis of p-n (BiO)4CO3(OH)2/Bi2O2CO3 internal polarized heterojunction for improved visible light photocatalytic performance

“…CO 3 2− came from the CO 2 in air. Many researches have proved that Bi 2 O 3 would change to Bi 2 O 2 CO 3 under illumination in air due to its unstable structure [36,37]. After the irradiation time is increased to 3 h, characteristic diffraction peaks of β-Bi respectively.…”

Synthesis and characterization of nanostructured MnO2–CoO and its relevance as an opto-electronic humidity sensing device

“…Humidity measurement is one of the most required parameters for various applications not only for improving the quality of life but also for enhancing the industrial process. 16,17 Advancements in sensor manufacturing technologies lead the researchers to know the degree of efficiency with predictions based on simulation techniques and design aids to improve sensitivity and sensor quality along with time-saving. 18 The humidity plays very important role and has acquired such incredible signicance due to the fact that these vapours consist of highly reactive dipolar molecules which get condensed on or evaporate from the surface even with small variations in temperature of the environment.…”