Highly efficient harvesting of vibration energy for complex wastewater purification using Bi5Ti3FeO15 with controlled oxygen vacancies

Zheng, Ying; Wu, Xinyan; Zhang, Yongcheng; Li, Yanqiang; Shao, Weiquan; Fu, Jie; Qing, Lin; Tan, Jun; Gao, Shouwu; Ye, Wanneng; Huang, Haitao

doi:10.1016/j.cej.2022.139919

Cited by 36 publications

(31 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The synergetic effect between the piezoelectric property and carrier concentration can boost piezocatalytic performance, as demonstrated in our previous work. 31 Compared with these traditional piezocatalysts, such as Pb(Zr 0.52 Ti 0.48 )O 3 51 and BaTiO 3 , 14,15,52 the piezoelectric coefficient of Bi 5 Ti 3 FeO 15 nanofibers is not high, but it has a relatively high carrier concentration due to the presence of oxygen vacancy, which is confirmed by XPS and carrier concentration investigations below. Thus, the efficient synergetic effect between the piezoelectric coefficient and carrier concentration in Bi 5 Ti 3 FeO 15 nanofibers could be the reason for efficient piezocatalytic performance.…”

Section: Resultsmentioning

confidence: 74%

“…15,18,19,21−26 Besides, the experimental conditions include solution pH value, reaction temperature, ultrasonic frequency and power, and so on. 17,20,27,28,31 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.…”

Section: Resultsmentioning

confidence: 99%

“…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 .…”

Section: Resultsmentioning

confidence: 99%

“…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 . Compared with these traditional piezocatalysts, such as Pb(Zr 0.52 Ti 0.48 )O 3 and BaTiO 3 , ,, the piezoelectric coefficient of Bi 5 Ti 3 FeO 15 nanofibers is not high, but it has a relatively high carrier concentration due to the presence of oxygen vacancy, which is confirmed by XPS and carrier concentration investigations below.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, we synthesized Bi 5 Ti 3 FeO 15 nanoparticles by the sol−gel process and revealed that these nanoparticles exhibited highly efficient piezocatalytic performance for various dyes' degradation. 31 In order to further improve the piezocatalytic performance, Bi 5 Ti 3 FeO 15 nanofibers were prepared using electrospinning and used for dyes' and antibiotics' degradation. We found that the Bi 5 Ti 3 FeO 15 nanofibers displayed highly efficient piezocatalytic activities under low-and high-frequency mechanical energy as expected.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Zhu

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

A piezocatalyst with highly efficient catalytic efficiency toward multiple pollutants’ removal can improve treatment efficiency and reduce the consumption of catalysts, which is ideal for practical applications. Herein, Bi5Ti3FeO15 nanofibers were prepared using electrospinning and its excellent piezocatalytic performances for mixed dyes’ and antibiotics’ degradation were revealed. Rhodamine B (RhB) is degraded by 98% in 20 min, and the acquired reaction rate constant is 0.195 min–1 under ultrasonic vibration. Particularly, the mixed dyes of RhB, acid orange 7, methylene blue, and methyl orange are simultaneously degraded within 40 min, a high rate constant of 0.106 min–1 is achieved, and the degradation efficiencies can be always maintained at ∼100% for five consecutive cycles. The obtained rate constant for mixed dyes’ degradation is superior to many of the previously reported catalysts just toward one dye degradation. Furthermore, it is further demonstrated that tetracycline hydrochloride, bisphenol A, and phenol can be also efficiently degraded by 94, 90, and 79%, respectively, within 30 min. The piezocatalytic performances of nanofibers at different pH values and reaction temperatures were also explored. Catalytic mechanism investigations demonstrate that the optimized Bi5Ti3FeO15 nanofibers possess a weaker carrier recombination rate, smaller carrier transfer resistance, and higher carrier separation efficiency, which account for its superior piezocatalytic performance. This work reveals that Bi5Ti3FeO15 nanofiber is a superior catalyst for organic pollutants’ degradation under mechanical vibration and offers a strategy for the design of other high-performance piezocatalysts.

show abstract

Section: Resultsmentioning

confidence: 74%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Zhu

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

Boosting Piezo‐Catalytic Activity of KNN‐Based Materials with Phase Boundary and Defect Engineering

Liao

Sun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

Although the piezo‐catalysis is promising for the environmental remediation and biomedicine, the piezo‐catalytic properties of various piezoelectric materials are limited by low carrier concentrations and mobility, and rapid electron‐hole pair recombination, and reported regulating strategies are quite complex and difficult. Herein, a new and simple strategy, integrating phase boundary engineering and defect engineering, to boost the piezo‐catalytic activity of potassium sodium niobate ((K, Na)NbO3, KNN) based materials is innovatively proposed. Tur strategy is validated by exampling 0.96(K0.48Na0.52)Nb0.955Sb0.045O3‐0.04(BixNa4‐3x)0.5ZrO3‐0.3%Fe2O3 material having phase boundary engineering and conducted the defect engineering via the high‐energy sand‐grinding. A high reaction rate constant k of 92.49 × 10−3 min−1 in the sand‐grinding sample is obtained, which is 2.40 times than that of non‐sand‐grinding one and superior to those of other representative lead‐free perovskite piezoelectric materials. Meanwhile, the sand‐grinding sample has remarkable bactericidal properties against Escherichia coli and Staphylococcus aureus. Superior piezo‐catalytic activities originate from the enhanced electron‐hole pair separation and the increased carrier concentration. This study provides a novel method for improving the piezo‐catalytic activities of lead‐free piezoelectric materials and holds great promise for harnessing natural energy and disease treatment.

show abstract

Recent advances of piezo‐catalysis and photocatalysis for efficient environmental remediation

Alshammari

2024

Luminescence

View full text Add to dashboard Cite

The efficient degradation of organic pollutants in diverse environmental matrices can be achieved through the synergistic application of piezo‐catalysis and photocatalysis. The focus of this study is on understanding the fundamental principles and mechanisms that govern the collaborative action of piezoelectric and photocatalytic materials. Piezoelectric nanomaterials, under mechanical stress, generate piezo‐potential, which, when coupled with photocatalysts, enhances the generation and separation of charge carriers. The resulting cascade of redox reactions promotes the degradation of a wide spectrum of organic pollutants. The comprehensive investigation involves a variety of experimental techniques, including advanced spectroscopy and microscopy, to elucidate the intricate interplay between mechanical and photoinduced processes. The influence of key parameters, such as material composition, morphology, and external stimuli on the catalytic performance, is systematically explored. This study contributes to the increasing knowledge of environmental remediation and lays the foundation for the development of advanced technologies using piezo and photocatalysis for sustainable pollutant removal.

show abstract

Highly efficient harvesting of vibration energy for complex wastewater purification using Bi5Ti3FeO15 with controlled oxygen vacancies

Cited by 36 publications

References 75 publications

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

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

Boosting Piezo‐Catalytic Activity of KNN‐Based Materials with Phase Boundary and Defect Engineering

Recent advances of piezo‐catalysis and photocatalysis for efficient environmental remediation

Contact Info

Product

Resources

About

Highly efficient harvesting of vibration energy for complex wastewater purification using Bi5Ti3FeO15 with controlled oxygen vacancies

Cited by 36 publications

References 75 publications

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

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

Boosting Piezo‐Catalytic Activity of KNN‐Based Materials with Phase Boundary and Defect Engineering

Recent advances of piezo‐catalysis and photocatalysis for efficient environmental remediation

Contact Info

Product

Resources

About

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

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