MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Gang Tian,Jingyu Lin,Yu Zhou,Ziyu Huang,Xiaoping Wei,Jianping Li
A novel extended-gate field-effect transistor based molecularly imprinted polymer photoelectrochemical (EGFET-MIP-PEC) sensor was constructed for the detection of neomycin in meat samples. Bi 2 O 3 /TiO 2 NTs heterojunction materials were synthesized by anodic oxidation and electrodeposition. With neomycin as the template and 3-aminophenylboronic acid as the functional monomer, a molecularly imprinted film was prepared on the Bi 2 O 3 /TiO 2 NTs electrode by electropolymerization. The MIP/Bi 2 O 3 /TiO 2 NTs electrode was connected to an extended-gate field-effect transistor. Under the irradiation of xenon lamp simulated visible light, the holes generated on the MIP/Bi 2 O 3 /TiO 2 NTs electrodes oxidize the neomycin adsorbed by the molecularly imprinted film, generating a photovoltage, which causes the gate voltage of the extended-gate field-effect transistor to change, thereby increasing the source-drain current. The sensor showed good linearity with the source-drain current in the neomycin concentration range of 5.0 × 10 −13 –5.0 × 10 −8 mol L −1 , with a detection limit of 1.0 × 10 −13 mol L −1 (3σ/S). Owing to the amplification of EGFET on photoelectrochemical signal produced by the Bi 2 O 3 /TiO 2 NTs heterojunction with high photoelectric conversion efficiency and wider wavelength range of optical response, the sensitivity of the sensor was significantly improved. The selectivity of the sensor was remarkably enhanced due to the MIP film.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 41
·15797-15805
·
IF 4.569
Jiawei Wu,Bangfu Ding,Xin Qian,Liang Mao,Huibin Zheng,Lei Zhang,Shukai Zheng,Junying Zhang
The Bi2MoO6 nanosheets are loaded on to γ-Bi2O3 tetrahedron surfaces to form Bi2MoO6/γ-Bi2O3 heterojunctions using a simple calcination method. The photocatalytic degradation efficiencies of the lomefloxacin and the Rhodamine B using the optimum sample are 96% and 99%, respectively, much higher than that of pure phase samples. When the waters from different regions in China were used as solvents, the removal efficiencies of the lomefloxacin and the Rhodamine B are still higher than 88% and 90%, respectively, which shows excellent prospects for practical applications. The photocatalytic degradation efficiencies of these two pollutants are higher than 91% and 95% in the five cycling tests, and the crystal structure of the sample is not changed after cycling. Based on the first-principles calculation, Bi2MoO6 and γ-Bi2O3 form a Z-type energy band structure which accelerates the separation of the photogenerated charge carriers. The Bi2MoO6 valence band potential of 3.25 V and the γ-Bi2O3 conduction band potential of −0.21 V are reserved to generate ˙OH− and O2−, respectively, for the photocatalytic reaction. The degradation of the lomefloxacin is ascribed to the shedding of functional groups and bond breaking with the final products being CO2, F−, H2O, and NO3−. This research shows that Bi2MoO6/γ-Bi2O3 heterojunctions can be employed to purify domestic and textile industrial sewage.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2018
·
IF 4.841
Siyi Li,Meng Zhang,Xue Ma,Jing Qiao,Hongbo Zhang,Jun Wang,Youtao Song
In this work, an ortho-symmetric double (OSD) Z-scheme SnO 2 \CdSe/Bi 2 O 3 sonocatalyst is skillfully designed and synthesized via ultrasonic-assisted isoelectric point method and then the sonocatalytic activity is studied under ultrasonic irradiation in the degradation of organic contaminants. The effects of ultrasonic irradiation time, sonocatalyst dosage, initial Rhodamine B concentration, organic dye kind and used times are investigated systemically. The formation of OH and h + are confirmed by using t-BuOH and oxalate, respectively. The Rhodamine B can completely be degraded under given experimental conditions such as 10 mg/L Rhodamine B solution, 1.00 g/L OSD Z-scheme SnO 2 \CdSe/Bi 2 O 3 dosage and 150 min ultrasonic process. The formation of mainly intermediate products is studied by Liquid Chromatography–Mass Spectrometry. Moreover, the sonocatalytic reaction mechanism caused by OSD Z-scheme SnO 2 \CdSe/Bi 2 O 3 is presented.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHARACTERIZATION
·
2026
·
IF 6.2
Haohua He,Panpan Lin,Tong Wu,Qianrun Zhang,Haodong Li,Ligupan Zhang,Xin Yue,Tiesong Lin,Peng He
In this article, we designed a novel Bi 2 O 3 -B 2 O 3 -BaO-Fe 2 O 3 (BBBF) magnetic glass-ceramic braze with various Fe content to fabricate YIG ferrite. • The network structure, thermal properties, crystallization behavior, magnetism of the glass braze were systemically reported. • YIG/BBBF glass /YIG joints showed desirable mechanical reliability and magnetic performance by controlling the in-situ crystallization of target phase BaFe 12 O 19 . • The highest shear strength of the joints was 62.6 MPa and the maximum of the joints' saturation magnetization intensity was 28.01 emu/g (over 97% of the base material), which is the first time that the magnetic performance of YIG/YIG joint has reached such a level. • We have revealed the regulation mechanism of the target magnetic phases on the magnetic performance of the joints, providing a theoretical basis for further improving the performance of functional device. A new designed Bi 2 O 3 -B 2 O 3 -BaO-Fe 2 O 3 magnetic glass-ceramic braze was developed to fabricate yttrium iron garnet ferrite (YIG) integrated structure. The magnetism level of the glass braze was controlled by in-situ crystallization of magnetic phase BaFe 12 O 19 and transitional phases. The saturation magnetization intensity of the glass brazes reached its maximum of 7.83 emu/g after designed heat-treatment for crystallization. YIG/BBBF glass/YIG joints showed not only outstanding mechanical strength but also desirable magnetic performance. The shear strength of the joints was up to 62.6 MPa, and the saturation magnetization intensity of the joints was up to 97% of YIG base material, which indicated almost no attenuation of the joints' magnetic performance compared with YIG base material. The mechanisms of the target magnetic phase BaFe 12 O 19 on the mechanical and magnetic performance of the joints were deeply elaborated, laying theoretical foundation for the magnetic control of ferrite device joints.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yan Yang,Xiaohui Li,Jie Li,Yu Xiong,Yang Xiao,Wei Zhou,Zongcheng Su,Junhao Xiong,Jinxin Zhou,Huaiwu Zhang
NiCuZn ferrites with high saturation magnetization and low magnetic loss in the microwave band have attracted significant attention for applications in microwave devices, especially in phased-array systems. However, achieving device miniaturization and integration while simultaneously maintaining low loss and excellent gyromagnetic performance remains a major challenge. In this study, the grain size effect on the gyromagnetic properties and magnetic loss suppression in NiCuZn ferrites was investigated by incorporating Bi 2 O 3 and nano-NiZn ferrite additives. The results show that the addition of Bi 2 O 3 effectively lowers reaction activation energy and reduces the sintering temperature, facilitating easy densification of the ferrite material. Benefiting from the synergistic effect of nano-NiZn ferrite addition and Bi 2 O 3 -assisted liquid-phase sintering, dense NiCuZn ferrites with a uniform grain size (G avg. = 7.62) and a high density ( ρ m = 5.32 g/cm 3 ) are obtained, leading to enhanced gyromagnetic properties and reduced magnetic loss. Consequently, the NiCuZn ferrite ceramic with optimized composition exhibits an ultra-low magnetic loss ( ΔH = 126 Oe), low dielectric loss (tanδ ε = 0.033) and an improved saturation magnetization (4π M s = 4159 G). This study provides a simple and effective strategy for achieving dense and compact grain structures, offering guidance for the design of miniaturized and low-loss microwave devices.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Zhiwei Zhou,Jiakang Yan,Xing Li,Jiawei Ren,Heng Liang,Yongwang Liu
Algal intracellular organic matter (IOM), released during algae's normal growth phase and water treatment processes, has long been a source of significant membrane fouling , considerably limiting the effective use of ultrafiltration(UF) technology. In this study, a Bi-doped TiO 2 composite with powdered activated carbon (Bi 2 O 3 –TiO 2 /PAC) was loaded on ceramic UF membranes by vacuum filtration, and the prepared photocatalytic modified ceramic membranes (MCMs) were investigated for the removal of IOM and the mitigation of membrane fouling at different loading levels and under three operating conditions: Dark, Dark-UV, and UV. The results showed that the photocatalytic MCMs were able to remove the protein and humic acid fluorescent components of IOM and decompose or mineralize organic matter with molecular weights of 10–50 kDa. Under the Dark, Dark-UV, and UV conditions, the final normalized flux of MCM-2.88 was significantly increased by 22.6 %, 82.1 %, and 108.0 %, respectively. The hydrophilicity of MCMs not only transformed the interactions between IOM and the membrane into repulsive forces, but also the composite material on the membrane surface transforms the membrane fouling mechanism from intermediate blocking model to cake layer formation. Furthermore, the application of photocatalytic oxidation under the Dark-UV and UV conditions yielded a reduction in both reversible and irreversible fouling. This action led to an increased hydrophilicity and elevated free energy of adhesion with IOM during the filtration process. Moreover, the main fouling mechanism changed into complete or intermediate blocking. These outcomes collectively underscore the capability of MCMs to alleviate membrane fouling induced by IOM. This advancement holds substantial promise for the advancement and widespread implementation of photocatalytic ceramic membrane filtration techniques.
✓ 已验证
产品关联
DOI
高影响因子
NEW CARBON MATERIALS
·
2020
·
IF 1.761
Chi Song,Lin-jie Wang,Si-miao Sun,Ying Wu,Li-jie XU,Lu Gan
A series of ternary composite photocatalysts of Bi 2 O 3 /Bi embedded in porous carbon (Bi 2 O 3 /Bi/PC) was prepared by the high-temperature pyrolysis of a bismuth-based metal organic framework (CAU-17(Bi)). They were used as photocatalysts for the degradation of organic Rhodamine B dye (RhB) in water under visible light. Results showed that the Bi 2 O 3 /Bi/PC composites with different Bi 2 O 3 /Bi ratios could be obtained through changing the extent of the carbothermal reduction of Bi 2 O 3 during pyrolysis. The photocatalystpyrolyzed at 800 o C showed the highest photocatalytic performance and had a wide applicable pH value range and excellent recyclability and stability.The components in the ternary composites exhibited a synergetic effect in the removal of RhB, where Bi 2 O 3 acted as a low-band gap semiconductor, metallic Bi transferred electrons generated by visible light excitation to the graphitic structure in porous carbon to inhibit the recombination of electrons with holes. The holes and peroxide radicals were the main active species. This study provides a new way for the design and preparation of visible-light active and high-performance photocatalysts for organic contaminant degradation in aqueous media by using metal organic frameworks as a multicomponent precursor.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2024
·
IF 8
Yong Wang,Shikai Xue,Yuhao Liao,Haiyan Wang,Qiujun Lu,Ningli Tang,Fuyou Du
In this study, Ag/Bi 2 O 3 /Bi 5 O 7 I with s-scheme heterostructures were successfully synthesized in situ by nano-silver modification of CUA-17 and halogenated hydrolysis.The growth rate of Bi 2 O 3 crystals was effectively controlled by adjusting the doping amount of Ag, resulting in the formation of a facet-coupling heterojunctions . Through the investigation of the microstructure and compositional of catalysts, it has been confirmed that an intimate facet coupling between the Bi 2 O 3 (120) facet and the Bi 5 O 7 I (312) facet, which provides robust support for charge transfer. Under visible light irradiation, the AgBOI.3 heterojunction photocatalyst exhibited an outstanding degradation rate of 98.2% for Bisphenol A (BPA) with excellent stability. Further characterization using optical, electrochemical, impedance spectroscopy, and electron spin resonance techniques revealed significantly enhanced efficiency in photogenerated charge separation and transfer, and confirming the s-scheme structure of the photocatalyst. Density functional theory calculations was employed to elucidate the mechanism of BPA degradation and the degradation pathway of BPA was investigated by LC-MS. Finally, the toxicity of the degradation intermediates was evaluated using T.E.S.T software.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Yilin Wang,Xi Tang,Zixia Zhao,Zhifang Liu,Caiyu Ge,Kunxiang Deng,Yixi Xie,Pengcheng Zhao,Junjie Fei
Tert -Butylhydroquinone (TBHQ) is a phenolic antioxidant commonly found in edible oils. However, excessive amounts of TBHQ can adversely affect food quality due to its toxic and mutagenic effects, which may cause human injury and present carcinogenic risks. Thus, there is an urgent need to develop a sensitive and accurate analytical method for the rapid detection of TBHQ. In this work, hierarchical flower-structured spherical SnIn 4 S 8 and pyramidal Bi 2 O 3 were combined to obtain the Z-scheme SnIn 4 S 8 /Bi 2 O 3 heterojunction. Under irradiation, the electron transport channel of this heterojunction facilitated the combination of electrons in the conduction band of Bi 2 O 3 with holes in the valence band of SnIn 4 S 8 , which decreased the recombination rate of photogenerated electrons and improved the photoelectric response. After the addition of TBHQ, the adsorption effect on the electrode surface and the oxidation reaction with holes in the valence band of Bi 2 O 3 further promoted the charge transfer and separation of photogenerated electrons and holes, which led to a rapid increase in the photocurrent to realize the detection of TBHQ in environmental and food samples. The increase in photocurrent has been linearly correlated with the logarithm of the concentration of TBHQ in the range of 1.00–500 μM with a limit of detection of 0.526 μM. Furthermore, the sensor showed excellent selectivity in the presence of a wide range of analogs. This study provides a novel scheme for the precise detection of TBHQ and the construction of high-performance photoelectrochemical Z-scheme heterojunctions.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 20
·8015-8027
·
IF 4.569
Zongyu Zhang,Xiuling Xue,Xiaoyi Chen
A novel ternary dual Z-scheme 2D g-C3N4 nanosheet/Ag3PO4/α-Bi2O3 (CNN/AP/BO) photocatalyst was successfully synthesized by an in situ deposition and hydrothermal–calcination method. The coupling of AP and BO remarkably enhanced the photocatalytic tetracycline (TC) degradation under visible light illumination, with an optimal removal efficiency of 91.6% (60 min), which can be attributed to the extended visible-light absorption and increased specific surface area owing to the interfacial intimate coupling with well-matched energy band positions between semiconductors. The improved photocatalytic activity resulted from the abundant free radicals by the order of ˙O2− > h+ > ˙OH based on the electron spin resonance (ESR) and quenching experiment results. In addition, the possible mechanism of TC degradation over the ternary dual Z-scheme heterojunction CNN/AP/BO was proposed.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Xiangta Xie,Yuyan Feng,Dongbo Wang
A novel in-situ grown α-Bi 2 O 3 /Bi 2 O 2 CO 3 /g-C 3 N 4 heterojunction (BBCx) was successfully fabricated via a two-step in-situ growth by a simple solvothermal calcination method. In this process, g-C 3 N 4 served as the substrate for the growth of Bi 2 O 2 CO 3 nanoplates, while Bi 2 O 2 CO 3 acted as the substrate for the subsequent growth of α-Bi 2 O 3 nanoplates. By characterizing the nanocomposite using different techniques, it was confirmed that the components of this ternary material are tightly bonded through heterojunction formation. Photocatalytic tests demonstrated that the composite exhibited higher activity than pure α-Bi 2 O 3 , Bi 2 O 2 CO 3 and g-C 3 N 4 . Among the composite materials, BBC400—obtained by solvothermal treatment followed by calcination at 400 °C for 2 h—exhibited the highest degradation efficiency toward tetracycline hydrochloride (TC-HCl), with a removal rate of 70% of TC-HCl within 120 min and a rate constant of 0.0081 min −1 . This rate constant was approximately 16.2 times (0.0005 min −1 ), 1.92 times (0.0042 min −1 ) and 1.35 times (0.006 min −1 ) higher than those of pure Bi 2 O 2 CO 3 , g-C 3 N 4 and α-Bi 2 O 3 , respectively. This synthesis approach offers a new strategy for the in-situ construction of heterojunction nanocomposites.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Yingqing Zhan,Ximin Chen,Ao Sun,Hongshan Jia,Yucheng Liu,Lingli Li,Yu-Hsuan Chiao,Xulin Yang,Fei Zhu
Membrane separation technology has potential for purifying emulsified oily wastewater. However, the oils, soluble organic substances, and microorganisms can cause complex membrane fouling problems, thereby reducing the separation efficiency and service life. Herein, a highly permeable and multiple-antifouling composite membrane was prepared using porous PAN fibrous mat as support backbone for the assembly of Ag-decorated Bi 2 O 3 @ 3D MXene Schottky heterojunction and hydrophilic TA as the adhesive. The unique arrangement of 3D MXene heterojunction and hydrophilic functionalization effectively broke through the limitation of separation flux and synergistically enhanced the anti-fouling performance of membrane. Such fibrous composite membrane achieved an exceedingly high permeability (2717–3328 L·m −2 ·h −1 ) for various emulsified oils, while ensuring excellent oil/water emulsion retention rate (99.59%) and good cycle stability. Meanwhile, the composite membrane displayed favorable photocatalytic degradation performance toward degrading MeB (96.1%) and antibacterial ability. Furthermore, the MD simulation and free radical trapping experiments were carried out to unravel the molecular interactions during the separation process and the photocatalytic mechanism of composite membrane, respectively. Overall, the combination of photocatalytic self-cleaning, anti-oil adhesion, and antibacterial effect renders the membrane high permeability and multiple-antifouling performance, which provides a new strategy for dealing with complex oily wastewater in petrochemical industry .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）