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Article
Chemistry, Physical
Zhuoran Ren et al.
Summary: Piezocatalysis has attracted increasing interest as a novel catalytic method, but the mechanisms behind it are not fully understood. In this study, we introduce displacement current and the principle of a piezoelectric nanogenerator to comprehensively understand the piezocatalytic mechanism. Through synthesizing a Co-N-C@BaTiO3 piezocatalyst and conducting experiments under ultrasonic vibration, we achieve a high CO2 reduction rate with high selectivity. We propose a comprehensive piezocatalytic mechanism supported by experimental results and analysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Chuanjian Su et al.
Summary: Piezocatalytic molecular oxygen activation is a promising and low energy-cost strategy for environmental remediation. However, the current piezocatalytic activity is still not satisfactory and the activation mechanism is not well understood. In this study, Bi2Fe4O9 nanosheets are synthesized as piezocatalysts, which exhibit excellent performance in sulfamethoxazole degradation. The Fe2+ sites are identified as active centers that activate molecular oxygen into O·2, contributing to the piezocatalytic activity. This work provides insights into the active sites of piezocatalytic molecular oxygen activation and can inspire the development of more efficient piezocatalysts for environmental applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Lu Shi et al.
Summary: Piezocatalysis is a promising technology in water pollution treatment. By preparing a series of piezoelectric NBT nanoparticles and optimizing their performance, it was found that NBT nanoparticles prepared using anatase titanium oxide as a titanium precursor exhibit the best catalytic activity for degrading RhB.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Srikanta Karmakar et al.
Summary: Synthesis of few-layered transition metal dichalcogenides (TMDCs) with exposed active sites is key to achieving excellent dye degradation performance. Flowers-like MoSe2 nanostructures (FMNs) show ultrafast dye degradation and high open-circuit voltage, while also demonstrating efficient piezocatalytic dye degradation capabilities for various organic dyes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Omid Amiri et al.
Summary: Mechanical energy is a renewable natural energy that can be harnessed using piezoelectric materials. Piezocatalysis offers a promising solution to water pollution. This research focused on the synthesis and properties of PbTiO3 (PTO) piezocatalyst, showing the significant influence of synthesis parameters and operation conditions on its activity. The degradation reaction was found to be completed within the first hour, achieving a high degradation efficiency of Acid Red 141 (AR141) under controlled conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Qian Zhou et al.
Summary: A new strategy utilizing V-doped SrTiO3 nanofibers for piezocatalytic degradation of low-concentration BPA in water was reported, showing excellent performance in complete removal of BPA within 24 min. The study proposed a suitable piezocatalytic mechanism and identified the main active radicals in BPA oxidation as center dot O-2(-) and center dot OH. This provides a feasible approach for phenolic pollutant removal using perovskite-based nano-piezoelectric materials.
CHEMICAL ENGINEERING SCIENCE
(2022)
Review
Multidisciplinary Sciences
Mudasir Akbar Shah et al.
Summary: Nanotechnology is playing an increasingly important role in designing smart fabrics, introducing properties like antimicrobial, UV resistance, conductivity, optics, waterproofing, and flame retardancy. Smart nanomaterial-based devices are now integrated with textiles for functions like energy harvesting, sensing, drug release, and optics. These advancements have wide applications in fashion, defense, healthcare, and on-body energy harnessing, with ongoing research into further developments.
JOURNAL OF ADVANCED RESEARCH
(2022)
Article
Materials Science, Ceramics
Ranran Zhang et al.
Summary: This research investigated the effect of strontium titanate content on the dielectric and energy storage performances of flexible composite films. It was found that at a relatively low electric field, the composite with 1wt% strontium titanate exhibited a significantly increased discharged energy density. The distribution of local electric field and local polarization of the composite films were also simulated using COMSOL Multiphysics.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yadi Yao et al.
Summary: Hydrothermally-synthesized barium titanate (BaTiO3) nanofibers are mechanically milled to improve their piezocatalytic performance for RhB dye decomposition. The enhancement in piezocatalysis may be attributed to the increased specific surface area and strengthened ferroelectric polarization of the BaTiO3 nanofibers after mechanical milling. This convenient and effective method provides a significant increase in the piezocatalytic activity of BaTiO3 nanofibers.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Guiqing Huang et al.
Summary: In this study, RP modified TiO2 hollow spheres were used for solar-to-hydrogen conversion. The optimal hydrogen production rate was achieved with the TiO2@RP heterostructure under simulated solar light irradiation. The hollow sphere structure and RP light absorber extended light absorption ability, and the heterostructure induced interfacial charge migration facilitated photoinduced charge separation, resulting in enhanced photocatalytic hydrogen production performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Xiaojie Li et al.
Summary: BFO nanoparticles with rhombohedral distorted perovskite structure were prepared using a sol-gel method and treated with corona poling under different electric fields. The gas sensing performance of BFO-based MEMS sensors improved with increasing corona poling fields. The corona poling treatment promoted ion displacement, lattice expansion, and increased dipole moments in the BFO nanoparticles, leading to a reduced band gap, increased oxygen adsorption, and improved H2S sensing performance of the MEMS gas sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Chemical
Jiajia Long et al.
Summary: Piezocatalysis, which converts mechanical energy into chemical energy, is considered as an emerging technology for degradation of organic pollutants in water or air. In this study, BiFeO3@CdS nanofibers with heterostructure and enhanced piezoelectric response were prepared for efficient piezocatalytic degradation of organics in water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Licheng Wan et al.
Summary: This study developed a high-efficient and recyclable piezocatalyst by utilizing natural mechanical energy for environmental purification. The new piezoelectric membrane with dual piezoelectric potentials demonstrated enhanced adsorption and activation of dissolved oxygen in water, leading to efficient removal of Bisphenol A. The membrane showed promising potential for water purification utilizing low-frequency mechanical energy.
Article
Chemistry, Physical
Jingjin He et al.
Summary: The study of piezocatalysis, particularly for environmental issues, has become an important topic in piezoelectric research. However, the reliance on nanofabrication poses challenges in investigating complex composition-designed materials for better performance and large-scale applications. In this work, a machine learning strategy is employed to efficiently explore the compositional space for ceramic powders with excellent piezoelectric response, aiming to improve piezocatalytic performance. (Ba0.95Ca0.05)(Ti0.9Sn0.1)O3 is selected as a promising candidate due to its relatively large piezoelectric coefficient d33 and fewer elements. The mechanically-ground ceramic powders exhibit excellent piezocatalytic activity, comparable to previously reported nanoparticles, highlighting their potential for large-scale applications.
Article
Chemistry, Multidisciplinary
Vidya Spriha Kujur et al.
Summary: This study focuses on the impact of corona-poling and particle size on the photocatalytic performance of (K0.5Na0.5) NbO3 (KNN) ferroelectric powder. The results demonstrate that the KNN-nano sample, with smaller particle size, exhibits better photocatalytic activity. The corona-poling treatment enhances the internal polarization field, leading to spatial separation of photogenerated electrons and holes and thereby providing more time for surface reactions, resulting in improved photocatalytic performance.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Engineering, Biomedical
Chaofeng Wang et al.
Summary: In this study, an eco-friendly nanohybrid material was synthesized, which exhibited great ability to kill bacteria and promote the healing of bacteria-infected wounds under 660 nm light irradiation. The mechanism is based on the synergistic effects of photocatalysis, photothermal effect, and released zinc ions.
BIOACTIVE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Amit Kumar et al.
Summary: In this study, a pigment-binder recipe was developed by incorporating MoS2 particles into an adhesive binder and water mixture. The modified cotton fabric exhibited excellent antibacterial properties against E. coli and S. aureus, with a bacterial reduction rate of over 96% after a 2-hour contact period. Furthermore, the antibacterial effect remained effective even after 20 washing cycles. The MoS2 coating did not impact the fabric's natural properties, making it a promising treatment for bacterial infections in medical textiles and everyday clothing.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Amit Kumar et al.
Summary: In this study, calcium fluoride nanoparticles were combined with a crosslinkable acrylate copolymer and coated on cotton fabric. The coated fabric exhibited excellent antibacterial activity and laundering durability, without affecting the intrinsic qualities of the fabric.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Multidisciplinary
Chii-Rong Yang et al.
Summary: This study developed a novel high-sensitivity flexible capacitive pressure sensor by combining BaTiO3-doped polyvinylidene fluoride electrospinning fibers and polydimethylsiloxane microcylindrical structures as the dielectric layer. The proposed sensor achieved higher capacitance variations and improved sensitivity through composite deformation of electrospinning fiber and micro-cylindrical structure under pressure.
Article
Chemistry, Physical
Nada Alfryyan et al.
Summary: In this study, BaTiO3-polymer paint composites were used to investigate their piezocatalysis activities. Dye degradation and antibacterial activities were examined under ultrasonication, and the effect of polarization on the catalysis process was also studied. The results showed significant enhancements in catalysis performance in the poled samples, with 80-90% dye degradation achieved in BaTiO3-polymer paint composites. This suggests the potential of these composites as coatings for self-cleaning applications.
Article
Engineering, Environmental
Nur Shafiqah Jamaluddin et al.
Summary: Hexavalent chromium is a hazardous heavy metal that can cause severe effects on human health and the environment. In this study, delaminated MXene was successfully synthesized and used to efficiently remove hexavalent chromium from water through adsorption-assisted photocatalysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Sahil Verma et al.
Summary: PVDF + WS2 fibers were fabricated via electrospinning to explore the effect of structure on catalytic activity. The composite material showed superior piezocatalytic and photocatalytic properties, attributed to increased spontaneous polarisation caused by ferroelectric PVDF contact. The composite membrane effectively degraded dyes and bacteria under low-frequency vibrations, providing insights into the role of phase structures in catalytic performance and a strategy for developing environmentally friendly catalysts.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Physical
Yuhan Zhang et al.
Summary: By successfully compounding BaTiO3 and KNbO3 into BaTiO3/KNbO3 heterostructure photocatalysts, the synergistic effect of piezocatalysis and photocatalysis enhances the separation efficiency of photogenic charge carriers and degradation performance, showing promising potential for environmental applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Jin Xu et al.
Summary: BaTiO3 powder prepared via solid-state reaction route showed significantly increased bacterial catalytic behavior under ultrasonication, with 10% E coli survival in 60 minutes. The powder also demonstrated effective degradation of methylene blue, ciprofloxacin, and diclofenac, with degradation rates of around 92%, 85%, and 78% within 150 minutes, respectively.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Sandeep Kumar et al.
Summary: Ferroelectric functional materials have a wide range of applications in sensors, actuators, and energy harvesting devices. Recent studies have shown their potential in environmental cleaning and bacterial remediation, with advantages over conventional methods. While the research area is relatively new, substantial experimental work has been done to offer a better understanding of the subject.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
Enzhu Lin et al.
Summary: Using a piezoelectrochemical method, selective deposition of Ag nanoparticles on the positively polar end of BaTiO3 nanocubes/cuboids has been achieved, leading to a significant enhancement in catalytic activity. The study sheds light on the piezocatalytic mechanism, offering an efficient way to improve catalytic performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Ceramics
Hongbin Yuan et al.
Summary: BiFeO3-BaTiO3 solid solutions with Li2CO3 sintering aid show reduced sintering temperature, increased relative density, and decreased dielectric loss and strain hysteresis; CMOS technology helps reduce dielectric loss and strain hysteresis in ceramics; BF-BT-L ceramics exhibit positive temperature-dependent strain at 200℃, making them suitable for high-performance lead-free piezoelectric multilayer actuator applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Chengye Yu et al.
Summary: This study significantly improves the piezocatalytic activity of BaTiO3 nanocrystals through morphology engineering rather than composition design. It demonstrates that 2D morphology in nanosheets greatly enhances piezocatalytic activity, which is dominated by morphology-dependent piezoelectricity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sachin Kumar et al.
Summary: This study investigated the variations in Raman and FTIR spectra of barium titanate induced by individual and co-doping of yttrium and tin. The results showed blueshift and redshift effects in different phonon modes with increasing doping levels, providing insights into the doping-induced effects in barium titanate.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Paper & Wood
Yan Dong et al.
Article
Materials Science, Multidisciplinary
Yanping Wang et al.
MATERIALS RESEARCH BULLETIN
(2020)
Review
Chemistry, Physical
Yan Zhang et al.
Article
Physics, Applied
Sandeep Kumar et al.
JOURNAL OF APPLIED PHYSICS
(2018)
Article
Materials Science, Multidisciplinary
V. Pancliyarasan et al.
Article
Materials Science, Ceramics
Vanita Thakur et al.
CERAMICS INTERNATIONAL
(2015)
Article
Engineering, Electrical & Electronic
H. S. Kushwaha et al.
JOURNAL OF ELECTRONIC MATERIALS
(2015)
Article
Materials Science, Paper & Wood
Alfred D. French
Article
Chemistry, Physical
Hui-Jian Ye et al.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2013)
Article
Chemistry, Multidisciplinary
Hiromichi Hayashi et al.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2013)
Article
Physics, Condensed Matter
W. H. Zhang et al.
PHYSICA B-CONDENSED MATTER
(2011)
Article
Materials Science, Multidisciplinary
S Piskunov et al.
COMPUTATIONAL MATERIALS SCIENCE
(2004)
