IONICS
·
2020
·Vol. 26
·期 8
·3989-3995
·
IF 2.394
Zhang Shao-hui,Liu Bao-sheng,Ai Bao-Shan,Wang Zhen-bo
In this article, calcination at high temperature is used to dope bismuth into the lead lattice, forming a composite metal oxide. The impact of bismuth doping on the conductivity of the cathode material PbO 2 and the structural framework during charge-discharge cycles is investigated. SEM and XRD are used to understand the structure and morphology of the lead-bismuth composite oxide, while cyclic voltammetry and electrochemical impedance spectroscopy are used to determine its resistance and electrochemical properties. Battery cycling tests are performed to evaluate the impact of bismuth doping on the performance of the lead-acid cathode material, and it was found that discharge capacity at 2 C increased by 15% while retaining 90% of its initial capacity after 250 cycles.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Fengxia Tong,Meiqi Wang,Xiaohan Cui,Zihan Liu,Xiaolei Bao,Dujuan Dai,Xizhuang Liang
Loading cocatalysts on the photoelectrode surface has been one of the most effective strategies to improve the charge separation and redox reaction kinetics during solar-driven photoelectrochemical (PEC) water splitting. The present study demonstrates that a nanoporous BiVO 4 (BVO) photoanode modified with efficient nickel-iron borate species (NiFe-Bi) exhibits significantly enhanced PEC activity and stability in a simulated hydrazine wastewater environment. The NiFe-Bi cocatalysts can enhance the transfer and separation of interfacial charges and significantly improve the charge injection efficiency. The introduction of hydrazine pollutant with low oxidation potential further promotes the transfer of holes from the surface to the electrolyte while inhibiting the dissolution of VO 4 3- from the BiVO 4 film. Importantly, by combining BVO/NiFe-Bi as a photoanode and a commercial platinum sheet as a cathode, a tandem PEC cell can also be constructed to achieve unbiased solar-driven hydrogen evolution from hydrazine wastewater. The hydrogen evolution rate is approximately 4 μmol h −1 cm −2 , and it still maintains a certain stability under long-term light exposure (AM 1.5 G, 100 mW cm −2 ) for 20 h. This work provides new inspiration for designing solar green hydrogen evolution processes.
研究领域:
可再生能源
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环境科学
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光电化学
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纳米材料
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制氢技术
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高影响因子
NORDIC PULP & PAPER RESEARCH JOURNAL
·
2022
·Vol. 37
·期 4
·636-648
·
IF 1.595
Yunfei Liao,Huiming Fan,Yongli Zhang,Hongyan Mou,Fengyu Li,Ziyin Zhou,Jianan Liu
PAAs can be further functionalized (hydroxylation and alkoxylation) by side chain substitution. In this study, we synthesized a SiPAAOH containing hydroxyl and siloxane groups based on the Aza-Michael addition reaction and applied it for reinforcement of aged paper. The results showed that the optimum conditions of SiPAAOH synthesis were as follows: the monomer molar ratio of APTES to EtA was 0.7:0.3, the solvent system for SiPAAOH reinforced aged paper was ethanol/water = 1:5 (v/v). The alkaline SiPAAOH could increase the pH of paper to 7.68, and to improve the amount of alkaline reserve to 200 mmol/kg. The whiteness and color difference of the treated paper were not significantly different from those of the untreated paper, and the mechanical properties of the paper were obviously improved. The results of contact angle and thermogravimetry showed that the SiPAAOH-treated paper was hydrophobicity and high temperature resistance.
研究领域:
材料科学
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纸张保护
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化学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Deyu Bao,Qiang Sun,Linsen Huang,Jie Chen,Jun Tang,Dali Zhou,Min Hong,Lei Yang,Zhi-Gang Chen
Tremendous efforts have been focusing on the improvement of p-type (Bi, Sb) 2 Te 3 -based thermoelectric materials for commercial applications. In this study, we achieve versatile interface engineering through a surface decoration of Bi 0.5 Sb 1.5 Te 3 by amorphous Sb 2 S 3 combining with spark plasma sintering, which introduces semi-coherent Sb/Bi 0.5 Sb 1.5 Te 3 interfaces and dopes S into Bi 0.5 Sb 1.5 Te 3 . Semi-coherent Sb/Bi 0.5 Sb 1.5 Te 3 interfaces strongly scatter phonons and lower energy carriers, leading to decreased thermal conductivity and increased Seebeck coefficient, while the electrical conductivity is not sacrificed due to the compromise of the slightly reduced carrier mobility by interfacial scattering and the increased carrier concentration by S doping. Benefited from the decoupled thermoelectric properties, a significantly enhanced power factor of 3345.40 μW m −1 K −2 and a low thermal conductivity of 0.78 W m −1 K −1 is obtained in Bi 0.5 Sb 1.5 Te 3 -0.4%Sb 2 S 3 , leading to a high peak zT of ∼ 1.31 at 330 K, which shows a 54% enhancement compared with pristine Bi 0.5 Sb 1.5 Te 3 . Moreover, a conversion efficiency of ∼ 7.6% can be predicted in a single leg Bi 0.5 Sb 1.5 Te 3 -0.4%Sb 2 S 3 -based module under a cold side temperature of 300 K and hot side temperature of 480 K. This study paves a facile amorphous Sb 2 S 3 induced interface engineering strategy for the development of high performance (Bi,Sb) 2 Te 3 -based thermoelectric materials.
研究领域:
材料科学
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能源科学
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2022
·
IF 6.364
Xiaowen Hu,Jinwu Chen,Jie Li,Huaicheng Xiang,Ying Tang,Liang Fang
Two zircon-structured ceramics AEuV 2 O 8 (A = Bi, La) were prepared with optimal sintering temperatures of 900 °C and 1375 °C, respectively. They exhibited sharp contrast performances with medium ε r ∼ 28.7 ± 0.1, Q × f ∼ 14,000 ± 300 GHz, and large positive τ f ∼ 75.7 ± 2.0 ppm/°C for BiEuV 2 O 8 , whereas low ε r ∼ 10.4 ± 0.1 Q × f ∼ 25,100 ± 300 GHz, and negative τ f ∼ − 40.7 ± 2.0 ppm/°C for LaEuV 2 O 8 . The rattling effect at the A-site was more dominant in determining microwave dielectric properties than that of compressed V 5+ at the B-site. It resulted in the higher ε r , lower Q × f and τ ε , and larger τ f of BiEuV 2 O 8 than those of LaEuV 2 O 8 . Besides, their Q × f was related with the relative density, bond valence and FWHM of the B 1 g Raman mode.
研究领域:
材料科学
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物理学
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Shuai Peng,Shi-Hai Deng,Longqian Xu,Huu Hao Ngo,Pengkang Jin,Wenshan Guo,Zuofeng Chen,Deli Wu
Generating solar vapor through thermal localization is a promising solution to address the global water shortage. However, incident light attenuation and latent heat accumulation of front-end condensing interface have led to a negative cascade effect between low condensing efficiency and heat loss, constraining the water evaporation rates (WER) and specific water productivity (SWP). This study presents an innovative approach of stacked front-end heat recovery architecture (SFE-HRA) developed based on a bi-hydrophilic transparent micro-nano-film (biH-TMNF). The biH-TMNF is designed and functionalized as a circulatable front-end vapor condensation cooling component that integrates a liquid film condensation module with two-phase functionalization and a porous hydrogel module. The biH-TMNF allows solar vapors from the bottom to adhere to the anti-fogging hydrophilic surface as a micro-liquid film while maintaining as high a light incidence as possible (> 90 %). At the same time, the latent heat of vapor is released to the second stage of the transparent hydrogel evaporator to drive the next stage of the latent heat of the vapor cycle. A 3-stage stacked SFE-HRA was constructed and demonstrated with the conventional solar evaporator [(SFE-HRA)-CSE]. The (SFE-HRA)-CSE system obtained a considerable increase in water evaporation rates (WER) by 150 % and a substantial improvement in condensate recovery by 200–300 %. A critical role of the dual bi-hydrophilic interface has been emphasized in promoting the efficiencies of latent heat cycle and water harvesting. The proof-of-concept testing confirmed an unprecedented SWP efficiency of 130 % from (SFE-HRA)-CSE, surpassing all SWPs from the high-performance front-end evaporators that have been reported.
研究领域:
材料科学
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能源工程
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环境科学
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Meidan Que,Jiaojiao Zheng,Xiangwei Bai,Ruochen Shi,Peihong Ma,Xun Sun,Jun Xu,Yao Wang
Bi 4 Ti 3 O 12 is a bismuth-based photocatalyst that belongs to the Aurivillius family of compounds, and it has garnered widespread attention in the field of photocatalysis due to its unique layered structure. However, it is dominated by single-electron-transfer during the reaction, which hinders the deep reduction of CO 2 to CH 4 and limits catalytic performance. In this work, Bi 4 Ti 3 O 12 was modified through the in-situ loading of Bi 0 metallic nanoparticles and Yb 3+ doped. Experimental results confirm that the Bi/Bi 3.99 Yb 0.01 Ti 3 O 12 exhibits superior photocatalytic activity, with CO and CH 4 production rates of 5.70 μmol g −1 h −1 and 5.32 μmol g −1 h −1 , respectively. Mechanistic investigations reveal that the Ohmic contact between Bi 0 and Bi 4 Ti 3 O 12 improves electron transport efficiency. Meanwhile, the constructed O 2 p -Yb 4 f -Yb 5 d -Ti 3 d electron-transfer bridge promotes multi-electron reaction kinetics and suppresses photogenerated carrier recombination, fundamentally improving the selectivity of CO 2 methanation. This study clarifies the electronic modulation mechanism induced by rare-earth doped, providing a feasible strategy and technical reference for the design of high-performance photocatalysts toward efficient CO 2 methanation.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Cao Jiacheng,Chen Yangxian,Wang Meiyi,Lu Xuefeng,Zhu Min
Strontium barium niobate (SBN) with a tetragonal tungsten bronze structure is a promising n -type oxide thermoelectric material, but its high intrinsic thermal conductivity limits further improvement of the thermoelectric figure of merit (ZT). In this study, A-site Bi-doped (Sr 0.7 Ba 0.3 ) 1-x Bi x Nb 2 O 6 (x=0.00, 0.05, 0.10, 0.15) ceramics were synthesized by a solid-state reaction method, and the effect of Bi doping on the microstructure and thermoelectric transport properties was systematically investigated. The results show that Bi 3+ ions are successfully incorporated into the A-sites of the SBN lattice, inducing local lattice distortions and introducing oxygen vacancies. TEM observations reveal high-density dislocations and lattice distortions. Electrical transport analysis indicates that Bi doping significantly increases the carrier concentration and reduces the carrier activation energy by introducing oxygen vacancies, which suppresses the contribution of small polaron hopping conduction and promotes band transport, thereby markedly decreasing the electrical resistivity. Meanwhile, the 6s 2 lone-pair electrons of Bi 3+ modulate the band structure, maintaining a considerable Seebeck coefficient at a relatively high carrier concentration. The x = 0.10 sample achieves a high-power factor of 410.4 μW·m −1 ·K −2 at 1073 K. In terms of thermal transport, the mass fluctuations, lattice distortions, and dislocation defects introduced by Bi doping constitute multiple phonon scattering centers, effectively reducing the lattice thermal conductivity. Finally, benefiting from the synergistic optimization of electrical and thermal transport, the x = 0.10 sample attains a maximum ZT of 0.24 at 1073 K. This study confirms that Bi doping is an effective strategy to enhance the thermoelectric performance of SBN-based materials and provides a new route for developing high-performance oxide thermoelectric materials.
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高影响因子
Science and Technology of Nuclear Installations
·
2026
·Vol. 2026
·期 1
·8106125
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IF 0.9
Yaqing Ren,Yulong Du,Yufaning Yin,Xiaoyuan zhou,Ziliang Hou,Weinan Sun,Peng Lin
This paper introduces a simple and rapid separation method for the determination of 55 Fe and 63 Ni in lead–bismuth alloys. This method is based on chemical precipitation and solid-phase extraction chromatography techniques, which can separate and purify individual radionuclides from sample matrix elements and other radionuclides. First, lead, bismuth, and iron are separated by chemical precipitation. On the one hand, nickel is separated on a NI-resin column from the filtered solution. On the other hand, after the precipitation is digested, iron is further separated from lead and bismuth by chemical precipitation. This study explored the effects of solution pH, ammonium citrate concentration, and eluent concentration (acid concentration) on the retention behavior of the NI-resin. The optimal separation efficiency for nickel was achieved under the following conditions: a solution pH of approximately 9, an ammonium citrate concentration of 0.2 mol/L, and an eluent (nitric acid) concentration of 3 mol/L. The recovery rates of Fe and Ni obtained by this method are 88.24% and 81.57%, respectively, and the decontamination factors of Pb and Bi are 6.5 × 10 2 and 1.4 × 10 4 , respectively.
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高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2025
·Vol. 39
·期 7
·e70249
·
IF 0
Conghao Liu,Yang Yang,Runzhi Li,Xiaoqing Zhang,Dionisio Zaldivar Silva,Yuefeng Zhao,Ruizhuo Ouyang,Yuqing Miao,Baolin Liu,Shuang Zhou
Three new thiosemicarbazone ligands (L1–L3) were synthesized, followed by their complexation with bismuth (Bi, III) producing the corresponding Bi (III) complexes (I–III). A series of in vitro biological studies of both the ligands and bismuth complexes were well assessed on a panel of human cancer cell lines, A549 and H460, including cytotoxicity assay, inhibition rate, clonogenic assay, scratch assay, and cell apoptotic evaluation. Compared to the ligands, the bismuth complexes displayed greatly enhanced ability to suppress colony formation and cell migration and thus significantly induced apoptosis of human lung cancer cells, sticking out remarkable anticancer activities of the Bi-based complexes. Significantly, Complexes I and III were found to be more active and exhibited potent cytotoxicity against the A549 cancer cell line, with IC 50 values of 2.68 and 1.08 μM, respectively. Accordingly, the antitumor effects of Complexes I and III on lung cancer cell line A549 in vivo human lung model were further investigated to simulate the clinical manifestations of A549 in BALB/c mice. The results indicate that Complex III mostly inhibited A549 xenograft growth in mice, with tumor volume reduced by 94.74% and tumor weight lightened by 98.27%, as compared to control. More importantly, no harmful effect was observed on the mouse liver, spleen, and lung. Good preliminary results obtained in mice reveal the great potential of Bi (III) thiosemicarbazone complexes as anticancer drugs.
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Journal of Cleaner Production
·
2022
·
IF 11.072
Hualin Jiang,Qi Wang,Pinghua Chen,Huitao Zheng,Jinwen Shi,Hongying Shu,Yanbiao Liu
The development of advanced and robust photocatalysts is vital for efficient photocatalytic degradation of the antibiotic tetracycline . Herein, a hierarchical heterojunction (Bi)BiOBr/rGO was facilely synthesized by employing an in-situ reduction strategy. An obvious synergistic effect between adsorption and photocatalysis was observed. A >98% tetracycline degradation efficiency was obtained within 20 min, and high performance could be maintained for over 50 h in a continuous operation without any post-treatment. The experimental and DFT calculation results suggested that there existed a built-in electric field between the interfaces, leading to the fast electron migration. Furthermore, rGO could significantly enhance the tetracycline adsorption, and Bi largely suppressed the charge carrier recombination owing to the surface plasmon resonance (SPR) effect. A possible tetracycline degradation pathway was proposed based on the HPLC-MS analysis. This study provides pathways for the rational design of advanced and robust photocatalysts to effectively degrade emerging contaminants in practical continuous-flow configurations.
研究领域:
环境科学
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材料科学
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高影响因子
Journal of Materials Chemistry A
·
2013
·Vol. 1
·期 20
·6226-6237
·
IF 0
Ganwei Zhang,Jiwen Hu,Guojun Liu,Hailiang Zou,Yuanyuan Tu,Fei Li,Shengyu Hu,Hongsheng Luo
Random bi-functional copolymers bearing fluorinated units and sol–gel forming units were prepared and used together with silica particles in a one-pot process for preparing superamphiphobic coatings. The copolymers P(FOEA-r-IPSMA) were prepared by atom transfer radical polymerization (ATRP) of 2-(perfluorooctyl)ethyl acrylate (FOEA) and 3-(triisopropyloxy)silylpropyl methacrylate (IPSMA). The uniform silica particles were prepared using a modified Stöber process. Stirring P(FOEA-r-IPSMA), silica, water, and HCl together with substrates triggered the sol–gel reactions of the IPSMA units. These involved first the hydrolysis of IPSMA to yield silanol groups and then the condensation of the IPSMA silanol groups among themselves, and with silanol groups on silica or glass surfaces or with hydroxyl groups on cotton or filter paper. At optimized mass ratios of P(FOEA-r-IPSMA) to silica, the resultant coatings consisted of lightly covered silica particles that were embedded in a crosslinked P(FOEA-r-IPSMA) film. By optimizing the molar ratio between FOEA and IPSMA in P(FOEA-r-IPSMA), the rough particulate coatings on cotton, filter paper, and glass plates exhibited superamphiphobicity. More importantly, the particulate coatings were resistant to solvent extraction and NaOH etching.
研究领域:
材料科学
·
高分子化学
·
表面工程
·
涂层技术
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危险品化学品经营许可证（带存储）