ACS Applied Nano Materials
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2025
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IF 5.5
Yue Guo,Chengyan Liu,Geng Cheng,Huimin Zhou,Ke Zhang,Guodong Yang,Yan Li,Jianhua Zhou,Lei Miao,Dong Hu
Lithium−oxygen batteries (LOBs) are considered promising candidates for next-generation energy storage systems due to their ultrahigh theoretical energy density. However, their practical application is challenged by sluggish reaction kinetics and unstable discharge product formation. Herein, we report the rational nanoscale engineering of a Bi2Se3/Bi2O3 heterostructured cathode via a controlled hydrothermal synthesis, addressing these limitations. The type-I band alignment in nanocomposite Bi2Se3/Bi2O3 generates a built-in electric field at the heterointerface, facilitating electron and ion transport and lowering the energy barriers for oxygen reduction (ORR) and evolution (OER) processes. Consequently, the Bi2Se3/Bi2O3 heterointerface catalyst exhibits exceptional specific capacity (19433.6 mAh g−1) and cycle stability (201 cycles at 200 mA g−1; 98 cycles at 1000 mA g−1), surpassing pristine Bi2Se3 by 320% in cycle life. This study establishes heterointerface engineering as a universal strategy for developing high-performance LOB catalysts.
研究领域:
材料科学
·
能源存储技术
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JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 9
·118214
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IF 6.3
Linhao Li,Yupeng Hao,Zhilun Lu,Ge Wang,Zhiling Hou
Bi 2 O 3 -based ceramics are promising functional materials for electrochemical devices. However, conventional high-temperature sintering (HTS) is energy intensive and can cause interfacial reactions or mechanical failure. In this work, pure Bi 2 O 3 and Er-, Nb-, and Ba-doped compositions were fabricated via the cold sintering process (CSP) at 250 °C. All samples achieved relative densities above 90 %, with pure and Ba-doped ceramics approaching unity. Most compositions remained single-phase after CSP, whereas the Ba-doped ceramic showed slight phase segregation. Analysis of the FTIR and TG–DSC results revealed the CSP mechanism, in which bismuth acetate and oxyacetate form and assist the densification process. CSP ceramics exhibited high oxide ion or electronic conduction that was comparable to their HTS counterparts. The results confirm the feasibility of applying CSP to Bi 2 O 3 -based ceramics, paving the way for the fabrication of advanced composite materials and complex devices.
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RADIATION PHYSICS AND CHEMISTRY
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2023
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IF 2.9
Wenwen Shan,Baohe Yuan,Yong Zhang
A series of polydopamine (PDA) modified MgO@Bi 2 O 3 composites (MB/PDA) with different mass ratios were fabricated to remove soluble U(VI). Batch experiments showed that MB/PDA-2 was provided with better adsorption performance than MB/PDA-1 and MB/PDA-3 and the maximum adsorption amount (C 0 = 10 mg/L, m/v = 0.1 g/L, pH = 4.0 and T = 298 K) reached 465.8 mg/g within 80 min. Moreover, over 95% U(VI) was removed by MB/PDA-2 in the process of dynamic adsorption and MB/PDA-2 still displayed high adsorption percentage (75%) after five cycles. The electrostatic attraction, complexation, redox reaction and cation-π interaction apparently influenced the U(VI) capture performance on MB/PDA-2. In short, MB/PDA-2 with high adsorption capacity was a preeminent material to extract soluble U(VI).
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CATALYSIS COMMUNICATIONS
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2023
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IF 3.7
Chunxin Zhang,Jing Ni,Ning Ding,Hong Liu
Composite MgIn 2 S 4 /Bi 2 O 3 was prepared and applied to the photocatalytic degradation of tetracycline (TC) under visible light. Results showed that formation of type-II heterojunction extended the visible light response range of the composite to 628 nm, effectively limiting the rapid recombination of photogenerated carriers. Further, the degradation experiment showed that TC was effectively decomposed by the composite. The main active substances for degrading TC were SO 4 · − , ·OH, h + and 1 O 2 . Cycling experiments showed that the TC removal rate by MgIn 2 S 4 /Bi 2 O 3 photocatalytic material was still as high as 75% after 4 cycles without any obvious changes in the crystalline phase structure.
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Materials Today Chemistry
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2023
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IF 7.3
R. Lu,S.-Z. Zhao,Y. Yang,Y. Wang,H.-L. Huang,Y.-D. Hu,R.D. Rodriguez,J.-J. Chen
TiO 2 nanotubes decorated with Bi 2 O 3 /Bi 2 O 2.33 nanosheets were prepared through a facile avenue that combines sacrifice template and hydrothermal methods . The TiO 2 nanotube structure provided a large specific surface area, and the TiO 2 /(Bi 2 O 3 /Bi 2 O 2.33 ) heterojunction broadened the light absorption range by reducing the bandgap to 2.746 eV. The TiO 2 /(Bi 2 O 3 /Bi 2 O 2.33 ) heterostructure demonstrated high adsorption capability for methyl orange (100 mg/L) with a 70% adsorption rate after 60 min. The photocatalytic performance of the TiO 2 /(Bi 2 O 3 /Bi 2 O 2.33 ) heterostructure was evaluated through the degradation of rhodamine B (RhB) and tetracycline hydrochloride (TCH). The removal rates of RhB (10 mg/L) and high concentration TCH (50 mg/L) could reach 93% and 96% after 60 min and 120 min of light irradiation, respectively. Theoretical calculations showed that the TiO 2 /(Bi 2 O 3 /Bi 2 O 2.33 ) structure enhanced photogenerated charge separation, leading to improved degradation of organic pollutants. This study provides a facile way for designing and creating heterostructural nanotubes with enhanced performance for removing organic pollutants.
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CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Huixuan Zhang,Yingyang Song,Li-chao Nengzi,Jianfeng Gou,Bo Li,Xiuwen Cheng
In this paper, magnetic CuFe 2 O 4 /Bi 2 O 3 composite was successfully fabricated by a simple sol–gel combustion method with an excellent activity in the activation of persulfate (PS) for lomefloxacin (LOM) degradation. The surface morphology and structure characterizations of CuFe 2 O 4 /Bi 2 O 3 were carried out by X-ray diffraction, scanning electron microscope , transmission electron microscope, N 2 physical adsorption/desorption and vibration magnetometer measurements. The CuFe 2 O 4 /Bi 2 O 3 synthesized exhibited high catalytic activity and good stability, it could degrade 77.19% of LOM at the natural pH (6.08), more efficient than CuFe 2 O 4 . Subsequently, the catalytic performances of CuFe 2 O 4 /Bi 2 O 3 during LOM degradation were studied comprehensively under different initial conditions (catalyst dosage (0.6–1.8 g/L), PS dosage (0.6–1.8 g/L), initial pH value (3.0–11.0)). Also, the main active radicals (SO 4 − and OH) were determined by the radical scavenging experiment, which indicated that OH had a higher contribution to remove LOM than SO 4 − in CuFe 2 O 4 /Bi 2 O 3 /PS system. Moreover, the mechanism of the CuFe 2 O 4 /Bi 2 O 3 /PS system for LOM degradation was further proposed and the possible degradation pathways of LOM in CuFe 2 O 4 /Bi 2 O 3 /PS system were deduced. Furthermore, activated sludge inhibition test was performed to determine the variation of toxicity of the LOM during the degradation process. In a word, the CuFe 2 O 4 /Bi 2 O 3 catalyst has a high catalytic efficiency and a short degradation period, indicating that it was a promising catalyst towards LOM wastewater treatment , which had a great potential in environmental protection.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2019
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IF 6.361
Qi Wang,Hong Wu,Qiaoyuan Gao,Dagang Lin,Yongjie Fan,Ran Duan,Yanqing Cong,Yi Zhang
Plasmonic Bi 0 modified BiOI-Bi 2 O 3 composite (Bi/BiOI-Bi 2 O 3 ) was prepared via in situ UV reduction method. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) techniques were carried out to identify the formation of semimetal Bi 0 . The results indicated that the dot-like bismuth particles were originated from the partial reduction of lattice Bi 3+ to Bi 0 by accumulated conduction band electrons in BiOI-Bi 2 O 3 . The as-prepared ternary composite exhibited enhanced visible-light-response, decreased charge transfer impedance and higher charge carrier density relative to unmodified BiOI-Bi 2 O 3 . Due to synergistic effect between plasmonic Bi 0 and BiOI-Bi 2 O 3 heterojunction , dramatically enhanced photocatalytic activity for phenol degradation can be achieved. After 3.5 h visible light irradiation, the value for phenol removal efficiency was ca. 60% and 100% on BiOI-Bi 2 O 3 and Bi/BiOI-Bi 2 O 3 , respectively. The calculated zero-order rate constant on Bi/BiOI-Bi 2 O 3 was 1.7 and 3.9 times that on BiOI-Bi 2 O 3 and Bi 2 O 3 , respectively. In addition to phenol, organic dyes (zwitterionic RhB , cationic MB and anionic Org II) were also used as model pollutants. Pronounced photocatalytic degradation by Bi/BiOI-Bi 2 O 3 can be observed, further confirming the importance of Bi 0 . Trapping experiments using different scavengers indicated that photogenerated holes were major active species during the degradation of phenol. Furthermore, good stability was also observed in 5 successive cyclic runs. This study opens a new strategy for in situ preparation of plasmonic Bi 0 modified composite.
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PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2019
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IF 14.229
Yajun Pang,Yuwei Li,Guangqing Xu,Yating Hu,Zongkui Kou,Qiang Feng,Jun Lv,Yong Zhang,John Wang,Yucheng Wu
An effective photoelectrochemical sensor is urgently needed for monitoring of the environmental pollution caused by organic wastes. In this work, we report a facile in-situ illumination-assisted process to introduce uniform metal oxide (Bi 2 O 3 ) nanocrystals of 2–3 nm in sizes on carbon bridged TiO 2 nanotube arrays (TiO 2 NTAs) (Bi 2 O 3 /C@TiO 2 NTAs), in which the carbon functions as both electron trapping for high efficiency and system integration. The Bi 2 O 3 /C@TiO 2 NTAs thus made exhibit a highly selective photoelectrochemical determination performance, with low background photocurrent (derived from the decomposition of water) and high detection current (derived from the decomposition of organics target). In particular, the current detection of the Bi 2 O 3 /C@TiO 2 NTAs is 3.38 times higher than that of the pristine TiO 2 NTAs. To understand the key working principles involved, they are scrutinized by probing into the photoelectrochemical reaction process, including the light absorption, charge separation and transfer, and surface reactions. With the novel Z-scheme heterostructure system being achieved with Bi 2 O 3 /C@TiO 2 NTAs, the present work demonstrates the potential of metal oxides with uniform size in nanometer range and conductor-bridged strategy in creating Z-scheme heterostructure system with high photoelectrochemical detection performance for organics.
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CHEMICAL PHYSICS LETTERS
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2022
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IF 2.719
Xinhe Liu,Yong Kang,Yi Wang
In this work, novel visible-light responsive β-Bi 2 O 3 /Ag 2 WO 4 p-n heterojunction photocatalysts were prepared by a simple in situ deposition method and characterized using XRD, FT-IR, SEM, TEM, XPS, UV–vis and PL. The uniform deposition of Ag 2 WO 4 particles on β-Bi 2 O 3 flakes to form heterojunctions, exhibited excellent photocatalytic activity for the degradation of methylene blue (MB) under visible light in 30 min. Compared with pure β-Bi 2 O 3 and Ag 2 WO 4 samples, the kinetic reaction rate constant of MB degradation by β-Bi 2 O 3 /Ag 2 WO 4 was 48.47 times higher than that of β-Bi 2 O 3 , and the degradation rate was as high as 98.8% with good cycling stability.
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CERAMICS INTERNATIONAL
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2022
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IF 5.532
Xinran Ji,Chang Shen,Ye Zhao,Hui Zheng,Qiong Wu,Qiangyuan Zhang,Liang Zheng,Peng Zheng,Yang Zhang
NiCuZn ferrite is a material suitable for low-temperature co-fired ceramic (LTCC) technology due to its high permeability and relatively low sintering temperature . The main research questions regarding NiCuZn ferrites are focused on reducing the sintering temperature of the NiCuZn ferrites to achieve compatibility with the Ag electrodes and improve their electromagnetic properties. In this study, the electromagnetic properties of NiCuZn (Ni 0.29 Cu 0.14 Zn 0.60 Fe 1.94 O 3.94 ) ferrites were enhanced by doping with Bi 2 O 3 , resulting in a reduction of the sintering temperature to 925 °C. The findings show that a suitable concentration of Bi 2 O 3 doping could promote the growth of grains and result in NiCuZn ferrites with denser microstructures sintered at a low temperature. Furthermore, adding 0.30 wt% Bi 2 O 3 to NiCuZn ferrite enhances its electromagnetic properties, such as a high real part of permeability (∼937.6 @ 1 MHz), high saturation magnetization (∼60.353 emu/g), low coercivity (∼0.265 kA/m), and excellent dielectric constant (∼14.71 @ 1 MHz). In addition, the chemically compatible Ag electrodes suggest that the NiCuZn +0.30 wt% Bi 2 O 3 ceramics may be acceptable for LTCC technology.
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CRYSTAL RESEARCH AND TECHNOLOGY
·
2020
·Vol. 55
·期 11
·2000093
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IF 1.169
Hongjun Chen,Zi Wang,Zeyang Xue,Chunhu Yu,Lizhai Pei,Chuangang Fan
A Bi 2 O 3 /In 2 O 3 heterojunction is successfully fabricated via a facile hydrothermal method using sodium bismuthate and indium nitrate as the source materials. The crystal structure, composition, micromorphology, and optical property of the Bi 2 O 3 /In 2 O 3 heterojunction are analyzed by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectrum, scanning electron microscopy, transmission electron microscopy, and solid ultraviolet-visible (UV-vis) diffuse reflectance spectra. The Bi 2 O 3 /In 2 O 3 heterojunction exhibits a remarkable photocatalytic degradation capacity for Rhodamine B, which is better than that of pure Bi 2 O 3 and In 2 O 3 . The photogenerated charges separation and transfer process of the Bi 2 O 3 /In 2 O 3 heterojunction follows a direct Z-scheme mechanism under UV–vis light irradiation. The trapping experiment indicates that oxidative radicals including •OH, h + , and •O 2 − play crucial roles in the photodegradation process. The outstanding photodegradation capacity is ascribed to spatially separated charge carriers, fast-charge transportation characteristic, and special bandgap structure of the Bi 2 O 3 /In 2 O 3 heterojunction. The introduction of H + and OH − ions into the reaction system promotes the formation of •OH and •O 2 − radicals, significantly enhancing the photodegradation rate of RhB. This study presents a new insight into the construction of the Z-scheme Bi 2 O 3 /In 2 O 3 heterojunction photocatalyst with potential application in wastewater treatment.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2020
·Vol. 31
·期 3
·2100-2110
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IF 2.22
Fan Lele,Liu Zhonghu,Zhu Yiyu,Wang Zhiqiang,Zhao Sihan,Zhu Lei,Zhang Qinfang
In this work, Li x BiO y compounds were synthesized via a facile calcination method. It was surprising that the as-prepared Li 7 BiO 6 compounds transformed into Li-doping tetragonal Bi 2 O 3 phase after undergoing water washing disposal, which was well verified by combining XRD and HR-TEM. In addition, the energy bandgap of prepared compound was derived based on UV–Vis diffuse reflectance spectrum and results indicate the formation of a lower band gap when increasing Li dopant concentration. Moreover, the Li-doping tetragonal Bi 2 O 3 exhibited high visible light-driven photocatalytic activity and the methylene blue can be well degraded in 10 min. The enhanced photocatalytic activity was ascribed to the improvement of light response and charge transfer. Our current work will boost the development of photocatalysis and bring insight into other Li x MO 6 (e.g., Li 6 WO 6 , Li 7 TabO 6 , Li 7 NbO 6 , Li 8 ZrO 6 ) compounds to extend their photocatalytic application.
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