JOURNAL OF HAZARDOUS MATERIALS
·
2019
·
IF 7.65
Li Song,Yuefeng Feng,Changqing Zhu,Fuqiang Liu,Aimin Li
Cr(VI) and Cd(II) are typical heavy metal ions and their co-removal is significant. Nitrogen-doped, bi-functional, and biomass-based composites (CP-BA) were successfully applied for efficient and synergistic removal of Cr(VI) and Cd(II). The mutual promotion ratios of adsorption capacity by Cr(VI) and Cd(II) were 161.32 % and 14.13 %, respectively. In addition, all coexisting inorganic anions could extremely promote the removal of Cd(II) with the best promotion ratio upon phosphate ions as high as 80.00 %. The following co-removal mechanisms were deeply revealed: (1) Cr(VI) combined with protonated imine groups could weaken the electrostatic repulsion between CP-BA and Cd(II) by electrostatic shielding, and further promoted the coordination of Cd(II) with hydroxyl, carboxyl and neutral imine groups. (2) Cd(II) which were coordinated to neutral imine groups could form cation bridges, and thus promoted the interaction with Cr(VI) because of the electrostatic attraction. Moreover, the removal capacity for Cr(VI) and Cd(II) did not display obvious reduction even after four cycles. Therefore, CP-BA showed a great potential in the co-removal of inorganic anion-cation complexes from wastewater.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2021
·Vol. 32
·期 8
·2843-2855
·
IF 3.665
Pengfei Ji,Yihua Cui,Dongyue Liu,Tianlong Zhang,Jipeng Lv
A novel functionalized graphene oxide (F-GO) decorated with a double-phosphaphenanthrene structure was fabricated using a covalent modification method. The F-GO with Bi-DOPO groups then was introduced into the epoxy matrix as a highly effective flame retardant. The Flame retardant epoxy resins (FREP) containing F-GO exhibited superior fire-resistant performance with extremely low loading. When the content of F-GO was 1 wt%, the limiting oxygen index value of the FREP was increased from 19.9% to 30.8%, and the total heat release and the peak heat release rate was decreased by 44.0% and 55.5%, respectively. Meanwhile, the tensile and impact tests results indicated that the mechanical properties of the epoxy resins were improved with the addition of F-GO. Furthermore, the thermogravimetric analysis showed that F-GO greatly increased the char-yield of the cured FREP. Based on the char analyses of SEM images, F-GO was conducive to form a more protective char barrier for FREP during combustion. F-GO developed a synergistic flame-retardant effect of the Bi-DOPO derivative and graphene layer structures on epoxy resins.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Yuanyuan Li,Puxian Xiong,Gaochao Liu,Mingying Peng,Zhijun Ma
Bismuth (Bi)-activated luminescence materials have attracted much attention for their tunable broad emissions ranging from a visible to near-infrared (NIR) region. However, it remains a challenge to regulate the Bi valence state and achieve NIR emission via a facile way. Here, we report the design and preparation of Ba3Sc4O9:Bi phosphors, which emit visible and NIR emissions simultaneously even prepared in the air condition. The self-reduction mechanism of Bi3+ species in Ba3Sc4O9 with a rigid crystal structure is illustrated based on the charge compensation model, and the coexistence of different Bi-active centers, Bi3+ for visible emission, while Bi+ and Bi0 for NIR emission, is confirmed by the spectroscopic data and X-ray photoelectron spectroscopy (XPS) analysis. The enhanced NIR emission was further achieved through controlled reducing treatment and the related mechanism has also been clarified. This work paves a new way to control bismuth valence and tune the emission of Bi-based luminescence materials for emerging photonics applications.
研究领域:
材料科学
·
光学
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DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2021
·
IF 9.676
Qihao Sun,Bao Xiao,Leilei Ji,Dou Zhao,Jinjin Liu,Wei Zhang,Menghua Zhu,Wanqi Jie,Bin-Bin Zhang,Yadong Xu
All-inorganic Cs 3 Bi 2 I 9 (CBI) halide perovskites are sought to be candidate for photoelectrical materials because of their low toxicity and satisfactory stability. Unfortunately, the discrete molecular [Bi 2 I 9 ] 3− clusters limit the charge-transport behaviors. Herein, the defect halide perovskite based on trivalent Bi 3+ is expanded to Cs 3 Bi 2 I 6 Br 3 (CBIB). Centimeter-size CBIB single crystal ( Φ 15 × 70 mm 3 ) was grown by the vertical Bridgeman method. The powder X-ray diffraction analysis shows that CBIB has P 3 ¯ m 1 structure with lattice parameters of a = b = 8.223 Å, c = 10.024 Å, α = β = 90° and γ = 120°. The density functional theory (DFT) calculations demonstrate that the charge density distribution was enhanced after the dimensional expansion. The enhancement of carrier transport ability of (00 l ) in-plane is characterized before and after dimensional improvement. The obtained CBIB (001) exhibited an electron mobility up to 40.03 cm 2 V −1 s −1 by time-of-flight (TOF) technique, higher than 26.46 cm 2 V −1 s −1 of CBI (001) . Furthermore, the X-ray sensitivity increases from 707.81 μC Gy −1 cm −2 for CBI (001) to 3194.59 μC Gy −1 cm −2 for CBIB (001) . This research will deepen our understanding of Bi-based perovskite materials and afford more promising strategies for lead-free perovskite optoelectronic devices modification.
研究领域:
材料科学
·
光电材料
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DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 5
·e05271
·
IF 2
Jiahao Lu,Hongtao Jin,Hepeng Zhang,Zhong Tian,Xiaoqi Sun
In this article, a series of bismuth (Bi)-doped rare-earth molybdate orange pigments with near infrared (NIR) properties were synthesized by high temperature solid phase reaction at 1400°C with the general formula of Y 4−x Bi x MoO 9 . The prepared pigments were characterized by analytical techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), CIE 1976 color space system, and ultraviolet-visible/near-infrared spectroscopy (UV-Vis/NIR). After doping Bi 2 O 3 into Y 4 MoO 9 , its color changes from yellow to red and finally to orange. All the doped samples belong to the monoclinic crystal system. All pigment samples have an NIR reflectance (R%) of over 97% at 1100 nm. In the study of acid and alkali resistance, the color difference value Δ E * of the pigment before and after soaking in acidic and alkaline solutions is less than 2, indicating its good chemical stability. In the coating simulation investigation, the indoor air temperature difference between the house model coated with synthetic pigments and the house model coated with commercial pigments reaches 8.2°C, indicating that Y 4-x Bi x MoO 9 pigments had good isolation effect and application prospects as a cool pigment.
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Shouning Yang,Ran Guo,Shuai Zhang,Fangxiao Li,Jinliang Liu,Huayan Yang
The integration of photothermal therapy (PTT), photodynamic therapy (PDT), and immunotherapy represents a promising strategy for enhancing anticancer efficacy. However, current approaches often rely on cocktail-based nanoplatforms that load multiple agents, which complicates preparation and raises concerns about stability and potential side effects. Therefore, developing structurally simple, easily synthesized nanomaterials with inherent multifunctionality is highly desirable. In this work, we report the first synthesis of biocompatible heterostructures. The interfacial contact within these heterostructures facilitates efficient charge carrier separation, enabling the simultaneous activation of photothermal conversion and photodynamic functionalities under near-infrared (NIR) irradiation. Beyond these photophysical effects, the obtained Bi₂Se₃@BiSe nanosheets effectively polarize M0 macrophages toward the tumor-suppressive M1 phenotype, a process which in turn promotes robust immunogenic cell death. Collectively, this work establishes Bi₂Se₃@BiSe as a versatile nanoplatform for triple-modal cancer therapy, seamlessly integrating PTT, PDT, and immunotherapy, thus proposing a novel paradigm for developing next-generation combinatory cancer therapeutics.
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产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Shifen Li,Wajiha Ahmed,Shuqin Wang,Xinman Hu,Beiduo Wang,Zhaoyi Wang,Liyin Shen,Yang Zhu,Changyou Gao
The adhesion between heart and chest post-operation raises a significant challenge for the application of cardiac patches due to its severe influences on the recovery of heart function and increased risk of re-treatment. Anabatic inflammatory response and increased oxidative stress aggravate the damage to heart functions. Herein, a multi-functional cardiac patch was manufactured by successive electrospinning of two types of novel selenium-containing polyurethanes (PU), followed by click grafting of poly (ethylene glycol) (PEG) molecules on the top layer. This patch possessed dual-functions of postoperative anti-adhesion and anti-oxidative stress for efficient therapy post myocardial infarction (MI). The high redox reactivity of diselenium bonds were introduced into the main chains of PU, which reduced the level of reactive oxygen species (ROS) and modulated the inflammatory environment, alleviating the synechia formation simultaneously. The cardiac patch could effectively resist fibroblast adhesion, regulate the expression of vinculin and tissue-type plasminogen activator (t-PA), and inhibit the synechia formation. Meanwhile, it also restored significantly the heart function post MI by decreasing the local inflammation, facilitating less collagen formation, and improving cell signal transduction and angiogenesis. Collectively, this novel patch achieved anti-adhesion and therapeutic effect synergistically, bringing advancement in cardiac patch design and potential for translation of medicinal devices.
研究领域:
生物材料
·
心血管工程
·
组织工程
·
再生医学
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DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
·
2011
·Vol. 21
·期 18
·6736-6741
·
IF 5.101
Xiwei Zhang,Jiansheng Jie,Zhi Wang,Chunyan Wu,Li Wang,Qiang Peng,Yongqiang Yu,Peng Jiang,Chao Xie
Single-crystal p-type ZnSe nanowires (NWs) with zinc blende structure and [21–1] growth direction were synthesized by using bismuth (Bi) as dopant via a thermal co-evaporation method. The ZnSe : Bi NWs showed evident p-type conductivity with hole concentration up to 4.1 × 1018 cm−3 after the acceptor activation. Negative photoconductivity was first investigated in the p-ZnSe NWs, i.e., the conductivity of the NWs under light was dramatically lower than that in the dark. Surface effects arising from oxygen absorption and photo-desorption were suggested to be responsible for this. By using Al as the Schottky gate, high-performance nano-metal-semiconductor field-effect transistors (nanoMESFETs) were constructed, and measurements on the Al/p-ZnSe NW Schottky diode also revealed the bias-dependent photoresponse. It is expected that the p-type ZnSe : Bi NWs will have great potential in nano-optoelectronic applications.
研究领域:
材料科学
·
半导体物理
·
纳米技术
·
光电子学
·
凝聚态物理
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2016
·Vol. 5
·期 4
·1756-1768
·
IF 8.262
Ting Wang,LingHua Tan,ChenDi Ding,MingDong Wang,JianHua Xu,JiaJun Fu
Redox-triggered smart nanocontainers, RTSNs 1, assembled by installing supramolecular switches onto the exterior surface of mesoporous silica nanoparticles, were successfully synthesized. The reversible transition upon redox stimuli from self-complexation to self-dissociation of supramolecular switches, which are in the form of β-cyclodextrin monofunctionalized with a ferrocene moiety, realizes switch behavior and regulates the release of p-coumaric acid (CA) encapsulated in mesoporous silica nanoparticles. Based on these facts, a bi-layered nanocomposite coating was designed and coated on the surface of AA2024 by successive deposition of a Ce(IV)-doped ZrO2–SiO2 sol–gel coating and an RTSNs 1 incorporated ZrO2–SiO2 coating. The bi-layered nanocomposite coating shows high barrier performance, effectively delaying the corrosion process occurring on the metallic surface in 0.5 M NaCl solution for 20 days. Once the bi-layered nanocomposite coating suffers local damage, Ce(IV) salt meets with RTSNs 1 in the scratched area and thus open the supramolecular switches, resulting in the release of the organic corrosion inhibitors, CA molecules. In the meantime, Ce(IV) salt is reduced to the inorganic corrosion inhibitor, Ce(III) salt. The combination of CA and Ce(III) produces a synergistic inhibition effect, which rapidly repairs the damaged surface and provides durable self-healing functionality.
研究领域:
材料科学
·
腐蚀工程
·
纳米技术
·
智能涂层
·
自修复材料
✓ 已验证
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Ao Huang,Linglong Kong,Bowen Zhang,Xuefan Liu,Lu Wang,Lifang Li,Jing Xu
Restructuring is an important phenomenon in catalytic reactions. Conversion-type materials with suitable redox potential may undergo in situ electrochemically driven restructurings and induce highly active catalytic sites in a working lithium–sulfur battery. Herein, driven by the electrochemical conversion reaction of BiVO4, a reversible catalytic cycle of Bi/amorphous Li3VO4 (a-Li3VO4) and Bi2S3/a-Li3VO4 heterojunctions is constructed, which targets the oxidation of Li2S and the conversion of polysulfide, respectively. The heterostructures and electrochemically driven size confinement provide abundant sites for shuttle restraining and sulfur conversion. Especially, the p-block Bi and Bi2S3 could dramatically reduce the conversion energy barriers of Li2S and polysulfide by virtue of the p–p orbital hybridization, promoting bidirectional reactions of the sulfur cathode. As a result, the corresponding sulfur cathode possesses a high reversible capacity of 7.5 mAh cm–2 after 120 cycles under a high sulfur loading of 10.3 mg cm–2 with a current density of 0.38 mA cm–2. This study furnishes a feasible scheme to obtain highly effective catalysts for bidirectional sulfur redox by utilizing the electrochemically induced restructuring.
研究领域:
电化学
·
储能
·
纳米材料
·
催化
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 7
·4846-4853
·
IF 3.5
Shunshun Jiang,Ji Zhang,Dmitry V. Karpinsky,Jinglei Li,Lisha Liu,Yaojin Wang
As one of the important electronic components, the dielectric capacitors for energy storage applications have been extensively studied in recent years. Among various dielectric materials, the perovskite oxide Bi 0.5 Na 0.5 TiO 3 -based ceramics have become promising candidates due to their high polarization, dielectric tunability, environment-friendly composition, and so forth. Herein, the relaxor ferroelectric ceramics of Bi 0.5 Na 0.5 TiO 3 –SrTiO 3 –Bi(Mg 0.5 Zr 0.5 )O 3 were prepared via solid-state reaction method. The sample with optimal composition not only retains the high polarization by introducing Bi 3+ ions, but also achieves the reduced remanent polarization by enhancing relaxor behavior and the promoted electric breakdown strength by the grain size refinement. Accordingly, a high recoverable energy density of 8.3 J/cm 3 under 450 kV/cm and the superb charge/discharge properties (current density C D = 1200 A/cm 2 , power density P D = 150 MW/cm 3 , charge/discharge time t 0.9 = 0.15 µs) are achieved, revealing great prospect in energy storage applications.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
Advanced Healthcare Materials
·
2024
·
IF 10
Sijia Wu,Qian Wang,Jun Du,Lejin Zhu,Fujun Yang,Jiacheng Lu,Xueyu Li,Yuhao Li,Jingtao Cui,Yuqing Miao
Sonodynamic therapy (SDT) represents a promising, noninvasive, and precise treatment modality for tumors, demonstrating significant potential in clinical applications. However, the efficiency of sonosensitizers in generating reactive oxygen species (ROS) is often limited by rapid electron-hole recombination. In this study, BiF 3 @BiOI is synthesized via a co-precipitation method, followed by in-situ reduction to decorate it with Pt nanoparticles, resulting in BiF 3 @BiOI@Pt-PVP (BBP) nanocomposite for enhancing SDT efficacy. The formation of the BiF 3 @BiOI heterojunction enhances charge separation ability. The decoration of Pt nanoparticles narrows the bandgap and alters the band positions and Fermi level of BBP, which can effectively mitigate the rapid recombination of electron-hole pairs and facilitate a cascade reaction of ROS, thereby improving ROS generation efficiency with ultrasound excitation. Additionally, bismuth ions in BBP and the generated holes consume glutathione, exacerbating cellular oxidative damage, and triggering PANoptosis and ferroptosis. Furthermore, Pt nanoparticles demonstrate peroxidase-like activity, catalyzing endogenous hydrogen peroxide to oxygen. These functions are helpful against tumors for alleviating hypoxic conditions, reshaping the microenvironment, modulating immune cell infiltration capacity, and enhancing the efficacy of immunotherapy. The dual strategy of forming heterojunctions and sensitization with noble metals effectively enhances the efficacy of sono-catalytic therapy-induced immune activation in tumor treatment.
研究领域:
肿瘤学
·
生物材料学
·
免疫学
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DOI
高影响因子
危险品化学品经营许可证（带存储）