Oxygen-rich bismuth oxychloride Bi

Area of Science:

• Materials Science
• Environmental Chemistry
• Catalysis

Background:

• Sonocatalysis offers a promising approach for pollutant degradation.
• Developing efficient catalysts is crucial for enhancing sonocatalytic activity.
• Bismuth oxychloride (Bi12O17Cl2) is a potential candidate for catalytic applications.

Purpose of the Study:

• To synthesize oxygen-rich bismuth oxychloride (Bi12O17Cl2) samples.
• To investigate the effect of calcination temperature on Bi12O17Cl2 properties and sonocatalytic performance.
• To optimize sonocatalytic degradation of Rhodamine B using Bi12O17Cl2.

Main Methods:

• Synthesis of Bi12O17Cl2 at various calcination temperatures.
• Characterization using XRD, UV-Vis, SEM, EDS, XPS, and PL spectroscopy.
• Systematic investigation of sonocatalytic degradation of Rhodamine B under varying conditions (ultrasonic power, catalyst dosage, pH, concentration, temperature).

Main Results:

• Calcination temperature significantly influenced the microstructure and band structure of Bi12O17Cl2.
• The Bi12O17Cl2-550 sample exhibited superior sonocatalytic activity.
• Optimal conditions led to approximately 90% degradation of Rhodamine B.
• Reactive species and a sonocatalysis mechanism were identified.

Conclusions:

• Oxygen-rich Bi12O17Cl2 is an effective sonocatalyst for Rhodamine B degradation.
• Calcination temperature is a key parameter for tuning catalyst performance.
• The study provides insights into the sonocatalysis mechanism for Bi12O17Cl2.