Enhancement of piezoelectric catalysis of Na0.5Bi0.5TiO3 with electric poling for dye decomposition

Bi5Ti3FeO15 Nanofibers for Highly Efficient Piezocatalytic Degradation of Mixed Dyes and Antibiotics

“…The k value of the nanofibers calcined at 700 °C for mixed dyes’ degradation is superior to most previously reported piezocatalysts just for one type of dye degradation, ,− as shown in Table S1. It is known that the piezocatalytic performance of piezocatalysts is affected by many factors, including the piezocatalyst itself and experimental conditions, for example, the piezocatalyst’s piezoelectric property, size, morphology, carrier concentration, and so on. ,,,− Besides, the experimental conditions include solution pH value, reaction temperature, ultrasonic frequency and power, and so on. ,,,, Among them, the piezoelectric property and carrier concentration are two key factors to tune the piezocatalytic performance of a piezocatalyst. The synergetic effect between the piezoelectric property and carrier concentration can boost piezocatalytic performance, as demonstrated in our previous work .…”

“…Various piezocatalysts have been reported in the past decade, such as ZnO, BaTiO 3 , ,, BiFeO 3 , Bi 0.5 Na 0.5 TiO 3 , − Bi 2 WO 6 , BaTi 0.89 Sn 0.11 O 3 , Sr 0.5 Ba 0.5 Nb 2 O 6 /Sr 2 Nb 2 O 7 , MoS 2 , MoSe 2 , Pb 2 BO 3 X (X = Cl, Br, I), PTFE@TiO 2 , and so on, which exhibit very promising applications in environmental remediation. Even though great progress has been achieved toward novel piezocatalyst design and the improvement of catalysis efficiency, considering that piezocatalysts possess highly efficient catalytic activity, low-cost, and eco-friendly features that will meet the requirement of practical application, most of the currently reported piezocatalysts are still unsatisfactory and far from practical application.…”

Remarkable Pyro-Catalysis of g-C3N4 Nanosheets for Dye Decoloration under Room-Temperature Cold–Hot Cycle Excitation

“…The decoloration efficiency curve C / C 0 vs. the cold–hot cycle times of RhB dye can be seen in Figure 5 a. The addition of BQ (the quencher of •O 2 − ) mediated by the 2D organic g-C 3 N 4 pyro-catalyst material significantly inhibits the decoloration of RhB dye, indicating that active •O 2 − is the primary reactive species in the pyro-catalysis process [ 36 , 37 ].…”

Efficient piezocatalysis of Bi0.5(Na1−xKx)0.5TiO3 nanoparticles: bridging the phase ratio at MPB composition and piezocatalytic activity

“…6a, compared to the unpoled BNKT2 as the control sample, all the poled samples possess higher piezocatalytic efficiency, confirming that an appropriate poling process is essential for BNKT nanoparticles to activate highly efficient piezocatalysis. 28 The kinetics of the degradation process often follows a linear dependency of ln( C 0 / C ) on reaction time ( t ) based on the Langmuir–Hinshelwood model, which can be employed to illustrate the evolution of the piezocatalytic process: C = C 0 e − kt where k is the first-order kinetic rate constant that can be obtained by the slope of ln( C 0 / C )– t plots. 29,30 As shown in Fig.…”