Presentation Information
[10p-N303-8]Hydrothermal Synthesis of Bismuth Ferrite-based Nanoparticles and the Application in Piezocatalytic Dye Degradation
〇(D)Chen YuHao1, Jin XinYu1, Kurioka Tomoyuki1,2, Chen Chun-Yi1,2, Sone Masato1,2, Hsu YungJung1,2,3, Okamoto Satoshi1,2, Chang Tso-Fu Mark1,2 (1.Institute of Science Tokyo, 2.Sumitomo Chemical, 3.NYCU)
Keywords:
piezocatalytic,multiferroic,BFO-based
Humanity is currently facing the dual challenges of environmental degradation and energy crises. In pursuit of sustainable development, the search for alternative and renewable energy sources has become a global priority. Among various candidate materials, the perovskite oxide BiFeO3 (BFO) has attracted significant attention due to its exceptional multiferroic properties—exhibiting both ferroelectricity and antiferromagnetism at room temperature—which make BFO-based nanoparticles highly promising for applications in environmental remediation and energy conversion. Additionally, BFO exhibits excellent piezoelectric properties, with a spontaneous polarization exceeding 100 and a piezoelectric coefficient as high as 70 further enhancing its potential for piezocatalytic dye degradation.
In this study, BFO-based nanoparticles were synthesized via a hydrothermal method, as illustrated in Figure 1(a). In the methylene blue (MB) degradation experiments, 40 mg of pure BFO nanoparticles were added to a solution containing 40 MB and 20 mL of deionized water. The suspension was stirred under dark conditions for 2 hours, during which a piezocatalytic degradation efficiency of approximately 2.3% was observed, confirming the intrinsic piezocatalytic activity of BFO. To further enhance the piezocatalytic Al2O3 particles were introduced to increase the frequency of collisions between the particles. As shown in Figure 1(b), the addition of Al2O3 significantly enhanced the piezocatalytic activity, resulting in a 204% increase in dye degradation efficiency compared to the system without Al2O3 This indicates that interparticle interactions can effectively promote piezocatalytic reactions, thereby validating the feasibility and application potential of the approach proposed in this study. performance,
In this study, BFO-based nanoparticles were synthesized via a hydrothermal method, as illustrated in Figure 1(a). In the methylene blue (MB) degradation experiments, 40 mg of pure BFO nanoparticles were added to a solution containing 40 MB and 20 mL of deionized water. The suspension was stirred under dark conditions for 2 hours, during which a piezocatalytic degradation efficiency of approximately 2.3% was observed, confirming the intrinsic piezocatalytic activity of BFO. To further enhance the piezocatalytic Al2O3 particles were introduced to increase the frequency of collisions between the particles. As shown in Figure 1(b), the addition of Al2O3 significantly enhanced the piezocatalytic activity, resulting in a 204% increase in dye degradation efficiency compared to the system without Al2O3 This indicates that interparticle interactions can effectively promote piezocatalytic reactions, thereby validating the feasibility and application potential of the approach proposed in this study. performance,