JOURNAL OF ALLOYS AND COMPOUNDS
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2023
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IF 6.2
Liang Wang,Jindong Dou,Yaodong Yang,Jianting Li,Wei-Feng Rao
Sonocatalysis has received much attention due to its ability to completely degrade organic matter without secondary contamination. However, there are still different opinions about the factors affecting sonocatalysis, such as the role of the piezoelectric coefficient in the sonocatalytic process needs to be clarified. To understand the influence of piezoelectric coefficient, Na 0.5 Bi 0.5 TiO 3 -xSrTiO 3 (NBT-xST, 0.20 ≤x ≤ 0.30) with different piezoelectric coefficients and different phase states (ferroelectric phase/relaxor) were obtained. The sonocatalytic experiments revealed a significant correlation between the piezoelectric coefficient and the catalytic performance in the ferroelectric phase. Still, more influencing factors need to be considered in the relaxor region.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Science Advances
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2025
·Vol. 11
·期 11
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IF 12.5
Fuyuan Zheng,Xufeng Wan,Yangming Zhang,Yan Yue,Qiaochu Li,Zhuang Zhang,Shuoyuan Li,Hong Xu,Qiang Su,Xiaoting Chen,Le Tong,Long Zhao,Jian Cao,Xin Tang,Xiao Yang,Jiagang Wu,Jian Li,Xiang Lv,Zongke Zhou,Duan Wang
Tracking and eradicating drug-resistant bacteria are critical for combating implant-associated infections, yet effective antibacterial therapies remain elusive. Herein, we propose an oxygen vacancy–rich (BiFe)0.9(BaTi)0.1O3−x nanoreactor as a piezoelectric sonosensitizer by spatiotemporal ultrasound–driven sono- and chemodynamic tandem catalysis to amplify antibacterial efficacy. The piezoelectric charge carriers under a built-in electric field synchronize the reaction of O2 and H2O, efficiently generating H2O2. The electron-rich oxygen vacancies modulate the local electronic structure of an Fe site. It facilitates reactive oxygen species generation by piezoelectric electrons and accelerates valence state cycles of Fe(III)/Fe(II) to achieve the sustained maintenance of hydroxyl radicals via H2O2/Fe(II)–catalyzed chemodynamic reactions, which lead to bacterial membrane damage. Transcriptomics analysis revealed that intracellular Fe overload induced by excessive Fe(II)-mediated dysregulation of the two-component system disrupts bacterial metabolism, triggering bacterial ferroptosis-like death. Thus, the porous titanium scaffold, engineered with a piezoelectric nanoreactor, demonstrates superior antibacterial efficacy under ultrasound and facilitates osteogenesis via piezoelectric immunomodulation–activated therapy.
研究领域:
生物医学工程
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微生物学
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材料科学
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DOI
PubMed
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2019
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IF 2.722
Nannan Geng,Wei Chen,Hang Xu,Tao Lin,Mingmei Ding,Yi Wang,Hui Tao,Kai Hu
In order to remove the humic acid (HA) from the drinking water efficiently, novel quaternary Fe 3 O 4 /TiO 2 –N-GO (FTNG) sonocatalysts with different amounts of Fe 3 O 4 were simply synthesized, and a sono-photocatalytic system was used by combining photocatalysis and ultrasound processes. A series of characterizations were performed to confirm the successful synthesis of FTNG and some of its properties, and the results showed that FTNG with an appropriate amount of Fe 3 O 4 can extend the range of light absorption to over 400nm (UV-vis spectra) and improve the separation efficiency of electrons and holes (Photocurrent responses). Raman spectra indicated the reduction of GO. Sono-photocatalytic performance was investigated under visible light irradiation and the effect of ultrasound was studied. Among all the catalysts, FTNG-0.2 with 0.2 g Fe 3 O 4 , exhibited the best HA removal abilities, about 80% for sono-adsorption and 93% for sono-photocatalysis. The removal efficiency in sono-photocatalytic system was about 42% higher than only adsorption and 26% higher than only photocatalysis. Finally, we proposed the possible reaction mechanisms. First, ultrasound pretreatment had a positive effect on HA removal, and a Fenton-like system was then established with H 2 O 2 produced by cavitation effect. Second, the doping of Fe 3 O 4 , N and GO improved the quantum efficiency. The improvement of visible light catalytic performance is mainly attributed to the doping of N. This work is significant for the field of ultrasonic and catalytic degradation, especially for the removal of humic acid in drinking water.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2021
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IF 5.316
Mingxuan Sun,Xiaojing Lin,Xianglong Meng,Wenzhu Liu,Zhipeng Ding
Herein, a series of TiO 2 /Bi 0.5 Na 0.5 TiO 3 heterojunctions with different mass ratio are first constructed under ultrasound irradiation, which shows superior sonocatalytic and photoelectrochemical properties. The improved performance is attributed to the internal electric field and close interfacial contact of TiO 2 and Bi 0.5 Na 0.5 TiO 3 , which promote the transfer of photoinduced electrons from TiO 2 to Bi 0.5 Na 0.5 TiO 3 . The spontaneous polarization of ferroelectrics in the heterostructures can be adjusted by ultrasonic treatment durations, which further influences the internal electric field. The TiO 2 /Bi 0.5 Na 0.5 TiO 3 sample with mass ratios of 5:1 and ultrasonic treatment for 15 min presents the highest sonocatalytic degradation of Rhodamine B. Moreover, the sonocatalytic activity also shows a close relevant to the ultrasonic temperature and frequency of degradation process. And, the •OH radicals are mainly responsible for Rhodamine B sonodegradation. This work provides a novel TiO 2 /Bi 0.5 Na 0.5 TiO 3 heterojunctions and promotes the application of ferroelectrics modified materials in sono-/photo-catalysis.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
ACS Applied Engineering Materials
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2025
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IF 3.5
Zeinab Marfavi,Yijun Han,Yuhao Cai,Quanjie Lv,Kang Sun,Congli Yuan,Ke Tao
Efficient water contaminant removal is critical for ecological and environmental sustainability. Developing energy-efficient, cost-effective catalysts compatible with existing water treatment systems is essential. This study introduces NdYVO4:Eu3+ nanoparticles as promising sonocatalysts, capable of generating reactive oxygen species (ROS) during ultrasound (US) exposure and maintaining persistent ROS activity for up to 12 h postexposure. These nanoparticles effectively degraded methylene orange and rhodamine B and demonstrated significant antibacterial efficacy against Staphylococcus aureus and Escherichia coli. The findings were further validated by using nanoparticle-coated industrial ceramic plates. This work provides an alternative procedure for US-triggered ROS production and suggests that NdYVO4:Eu3+ nanoparticles might be promising in sonocatalytic water treatment.
研究领域:
环境科学
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材料科学
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微生物学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2022
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IF 14.224
Muhammad Zaheer Afzal,Peng Zu,Chun-Miao Zhang,Jing Guan,Chao Song,Xue-Fei Sun,Shu-Guang Wang
Pharmaceuticals are necessary to be removed from environment. Herein TiO 2 incorporated biochar made from pyrolysis of agricultural wastes was encapsulated into chitosan to obtain a novel hydrogel beads. This hydrogel beads executed a dual role as both adsorbent and sonocatalyst, which proved to be suitable for the removal of antibiotic ciprofloxacin (CIP) from water. The results showed that adsorption of CIP followed pseudo first order kinetics model and Langmuir adsorption isotherm model, having maximum adsorption at pH 9. Whereas the degradation was more efficient at pH 6 due to greater standard potential for • OH/H 2 O in acidic media. The degradation was maximum at 150 W of ultrasonic power, then decreased in presence of dissimilar electrolytes and even reduced to 0 in presence of Na 3 PO 4 . Different quenchers such as benzoquinone (BQ), Triethanolamine (TEA) and isopropyl alcohol (IPA) reduced degradation efficiency (DE) and mineralization efficiency (ME). The DE was decreased from 85.23% to 81.50% (BQ), 74.27% (TEA), and 61.77% (IPA) within 25 min. The prepared sonocatalyst was capable of regeneration with DE, remaining sufficiently high (62%) even after four regeneration steps. These results indicate that titanium-biochar/chitosan hydrogel beads (TBCB) are durable and effective for long-term CIP removal.
研究领域:
环境科学
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药学
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材料科学
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DOI
PubMed
高影响因子
Desalination and Water Treatment
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2025
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IF 1
Yingying Huang,Jinlong Li,Liming Bai,Xi Chen,Shijie Chen,Huishu Zhang
A magnetically recyclable cauliflower-like yttrium-doped ZrO 2 was successfully prepared via the template method. The phase and morphology of the synthesized sonocatalyst were characterized by XRD, SEM and TEM. The optical properties of the synthesized sonocatalyst were analysed by XPS, DRS and PL. The results showed that when the amount of sonocatalyst Er:YAG/(Fe 3 O 4 @Y-ZrO 2 ) was 1 g/L and the concentration of methylene blue (MB) was 5 mg/L under ultrasonic irradiation for 150 min, the synthesized sonocatalyst showed excellent sonocatalytic activity, and the degradation ratio of MB was up to 91.4 %. In addition, after 5 repeated experiments, Er:YAG/(Fe 3 O 4 @Y-ZrO 2 ) showed similar sonocatalytic activities, indicating that the synthesized sonocatalysts have excellent structural stability and recyclability. Through a comprehensive analysis of experimental results and discussions, this paper elucidates insights into enhancing sonocatalytic degradation efficiency caused by Er:YAG/(Fe 3 O 4 @Y-ZrO 2 ) and proposes potential mechanisms underlying sonocatalytic degradation of MB, thereby contributing to the development of effective strategies for sonocatalytic degradation of organic dye.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
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2022
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IF 9.336
Samira Haddadi,Alireza Khataee,Samira Arefi-Oskoui,Behrouz Vahid,Yasin Orooji,Yeojoon Yoon
In light of growing environmental concerns over emerging contaminants in aquatic environments, antibiotics in particular, have prompted the development of a new generation of effective sonocatalytic systems. In this study, a new type of nano-laminated material, Ti 2 SnC MAX phase, is prepared, characterized, and evaluated for the sonocatalytic degradation of oxytetracycline (OTC) antibiotic. A variety of identification analyses, including X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectrometry, Brunauer-Emmett-Teller, and diffuse reflectance spectroscopy, were conducted to determine the physicochemical properties of the synthesized catalyst. By optimizing the operating factors, total degradation of OTC occurs within 120 min with 1 g L -1 catalyst, 10 mg L -1 OTC, at natural pH of 7.1 and 150 W ultrasonic power. The scavenger studies conclude that the singlet oxygen and superoxide ions are the most active species during the sonocatalytic reaction. Based on the obtained data and GC–MS analysis, a possible sonocatalytic mechanism for the OTC degradation in the presence of Ti 2 SnC is proposed. The catalyst reusability within eight consecutive runs reveals the proper stability of Ti 2 SnC MAX phase. The results indicate the prospect for MAX phase-based materials to be developed as efficient sonocatalysts in the treatment of antibiotics, suggesting a bright future for the field.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2025
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IF 6
Sultan Akdağ Türkay,Alireza Khataee,Yasin Orooji
The V 4 AlC 3 MAX phase, as the precursor of MXene, was developed for levofloxacin degradation through sonocatalytic activation of peroxymonosulfate (PMS). The reactive sintering method was used to synthesize V 4 AlC 3 MAX phase. Vanadium, aluminium and graphite, with molar ratios 4:1.2:3, were mixed in ball milled (ball-to-material ratio of 3:1, 12 h, 350 rpm), compressed into a disc and placed in a tubular furnace (1600 ℃ for 2 h). The stacked layered morphology of the MAX phase was confirmed by SEM and TEM images. With an average crystal size of 48.5 nm and a narrow band gap (1.92 eV), the V 4 AlC 3 MAX phase exhibited remarkable sonocatalytic activity. Under optimum conditions, US/V 4 ALC 3 MAX phase/PMS process exhibited 88.4 % levofloxacin degradation efficiency in 60 min. First order rate constant (k app ) of the US/V 4 AlC 3 MAX phase/PMS process was 10.22, 7.43, and 4.78 times higher than that of US/V 4 AlC 3 MAX phase, US/PMS, and V 4 AlC 3 MAX phase/PMS processes, respectively. V 4 AlC 3 MAX phase showed remarkable reusability after 5 cycles. It was proved that superoxide radical was the main active substance in the degradation process. The possible intermediates were identified through LC-MS analysis, and four main degradation pathways were proposed. The mechanism of PMS-assisted sonocatalytic degradation of levofloxacin was described.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
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2018
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IF 6.012
Guowei Wang,Siyi Li,Xue Ma,Jing Qiao,Guanshu Li,Hongbo Zhang,Jun Wang,Youtao Song
A novel Z-scheme coated composite, Er 3+ :Y 3 Al 5 O 12 @Ni(Fe 0.05 Ga 0.95 ) 2 O 4 -Au-BiVO 4 , was designed for sonocatalytic degradation of sulfanilamide and fabricated by sol-hydrothermal and calcination methods. The prepared sample was characterized by X-ray diffractometer (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), UV–vis diffuse reflectance spectra (DRS), fourier transform infrared (FT-IR) spectra, Raman spectra and photoluminescence (PL) spectra. In Er 3+ :Y 3 Al 5 O 12 @Ni(Fe 0.05 Ga 0.95 ) 2 O 4 -Au-BiVO 4 , Ni(Fe 0.05 Ga 0.95 ) 2 O 4 and BiVO 4 form a Z-scheme sonocatalytic system, Er 3+ :Y 3 Al 5 O 12 as an up-conversion luminescence agent (from visible-light to ultraviolet-light) provides the ultraviolet-light for satisfying the energy demand of wide band-gap Ni(Fe 0.05 Ga 0.95 ) 2 O 4 and Au nanoparticles as co-catalyst forms more active sites to enrich electrons. Also, Au nanoparticles as conductive channels promotes the electrons (e − ) from conduction band of BiVO 4 to transfer to valence band of Ni(Fe 0.05 Ga 0.95 ) 2 O 4 . Due to the characteristics of valence state diversity, the Fe 3+ and V 5+ constitute a redox reaction recombination system, which can also push electrons (e − ) on conduction band of BiVO 4 to quickly transfer to valence band of Ni(Fe 0.05 Ga 0.95 ) 2 O 4 . The sonocatalytic activity of Er 3+ :Y 3 Al 5 O 12 @Ni(Fe 0.05 Ga 0.95 ) 2 O 4 -Au-BiVO 4 nanocomposite was detected through degradation of sulfanilamide under ultrasonic irradiation. A high sonocatalytic degradation ratio (95.64%) of sulfanilamide can be obtained when the conditions of 10.00 mg/L sulfanilamide, 1.00 g/L Er 3+ :Y 3 Al 5 O 12 @Ni(Fe 0.05 Ga 0.95 ) 2 O 4 -Au-BiVO 4 , 300 min ultrasonic irradiation and 100 mL total volume were adopted. Some factors such as ultrasonic irradiation time and cycle number on the sonocatalytic degradation efficiency are also investigated by using TOC and UV–vis spectroscopy. Subsequently, the effects of hydroxyl radicals ( OH) and hole scavengers were investigated to elaborate the mechanism. The researches show that the prepared Z-scheme Er 3+ :Y 3 Al 5 O 12 @Ni(Fe 0.05 Ga 0.95 ) 2 O 4 -Au-BiVO 4 coated composite displayed an excellent sonocatalytic activity in degradation of sulfanilamide under ultrasonic irradiation.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Journal of Water Process Engineering
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2022
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IF 7.34
Xin Wang,Xue-Song He,Chun-Yu Li,Shi-Lin Liu,Wen Lu,Zheng Xiang,Yang Wang
The development of efficient sonocatalysts is of great significance to the treatment of antibiotic wastewater. Herein, an S-scheme sonocatalyst Cu 2 O/BiFeO 3 has been fabricated using a simple synthesis method, in which Cu 2 O nanoparticles grow on the surface of BiFeO 3 . Tetracycline (TET) was selected as a representative pharmaceutical model to systematically evaluate the sonocatalytic performance of the Cu 2 O/BiFeO 3 . The experimental results showed that optimized Cu 2 O/BiFeO 3 (CBF-3) has superior sonocatalytic performance to TET (98.0 %, 0.02302 min −1 ), which is much higher than that of pure BiFeO 3 (54.6 %, 0.00515 min −1 ). Combined with the experimental result and characterization analysis, the sonodegradation mechanism was discussed. The improved sonocatalytic performance can be ascribed to the S-scheme charge transfer mechanism between Cu 2 O and BiFeO 3 , which can simultaneously inhibit sonoelectron-hole recombination, promote carrier transfer, maintain high redox capacity, and generate more active substance. The possible intermediate products and degradation pathways of TET over CBF-3 were analyzed by ion chromatography and liquid chromatography-mass spectrometry. Furthermore, the results of the bacterial toxicity test indicated that the toxicity of the reaction solution decreased significantly after sonodegradation. This study provides a simple way for the rational design and successful preparation of S-scheme sonocatalyst with promising applications in the remediation of the water environment.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Liang Xu,Xiao-Fang Wang,Bin Liu,Ting Sun,Xin Wang
The composites ferrous tungstate (FeWO 4 ) were fabricated as the sonocatalyst for degradation of meloxicam (MEL) in water. The composites are prepared carefully via hydrothermal reaction of sodium tungstate dehydrate and ferrous ammonium sulfate hexahydrate. The morphology of FeWO 4 were controlled successfully, by adjusting the acidity of the reaction solution (pH = 5, 6, 7, 8, 9). Multiple characterization results revealed that the obtained FeWO 4 shared the similar nano-microspheres structure, but with different BET surface area and energy gap. The sonocatalytic experiments showed that FeWO 4 nanomaterials with various synthetic pH values had different sonocatalytic performance on degradation of meloxicam (MEL), and FeWO 4 synthesized at pH 6 reaches maximum of 73.5% on degradation of MEL. This phenomenon was not only due to the moderate BET surface area (31.18 m 2 /g), moderate pore size distribution (10–30 nm) and moderate energy gap (1.73 eV) of FeWO 4 nano-microspheres, ·OH and holes also played a key role in the removal of MEL. The obtained catalyst was proved to be stable enough after four cycles. Our study demonstrates a novel finding, not reported previously, that FeWO 4 could be utilized as a promising sonocatalyst to degrade MEL by ultrasound-driven.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
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