MATERIALS CHEMISTRY AND PHYSICS
·
2021
·
IF 4.094
Jingying Zhang,Yanchun Yang,Guonan Cui,H. Alata,Yiming Wang,Chengjun Zhu
Substitution of Zn 2+ ionic by Co 2+ ionic is known to suppress the cation disorder of Cu 2 ZnSn(S,Se) 4 thin films , which is helpful to obtain the excellent Cu 2 ZnSn(S,Se) 4 solar cell devices. In our work, the extra trace Co incorporation was added in the solution without affecting the compositions of other elements (i.e. Cu, Zn, and Sn) to enhance the electrical properties of Cu 2 ZnSn(S,Se) 4 thin films . And Co incorporation does not enter into the lattice nor be found in the selenized films after taking effect, but increases the crystallinity , compactness, carrier concentration, and electrical properties of Cu 2 ZnSn(S,Se) 4 thin films samples. By tuning the doping ratios of Co 2+ ionic, the surface roughness of the selenized films can be decreased from 110.2 nm (0 mol %) to 68.90 nm (5 mol %). As 1 mol % of Co 2+ ionic is doped, the carrier concentration of films can be also improved to 4.35 × 10 17 cm −3 from 2.63 × 10 16 cm −3 , and average surface current of films applied 1 V AC voltage can be increased from 2.426 nA to 4.454 nA. The enhanced properties of Co-incorporated films brings hope for the excellent performance of Cu 2 ZnSn(S,Se) 4 solar cells.
研究领域:
材料科学
·
光伏技术
·
半导体薄膜
·
可再生能源
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高影响因子
MATERIALS SCIENCE AND TECHNOLOGY
·
2016
·
IF 1.008
D. Tan,Y. Liu,W. Guo,J. Wang,Z. Chang,D. Li
In the present work, W–Bi–S-tridoped TiO2 nanoparticles were synthesised by a simple sol–gel method. The structure and morphology of as-prepared W–Bi–S-tridoped TiO2 were characterised by using X-ray powder diffraction, transmission electron microscopy, scanning electron microscopy and UV–Vis diffuse reflectance spectrum. It was found that the W–Bi–S-tridoped TiO2 nanoparticles were well crystallised with a small size distribution. The absorption edge of TiO2 was extended into visible-light region obviously after being doped with W, Bi and S. The photocatalytic degradation of methylene blue was used as a probe reaction to evaluate the efficiency of W, Bi and S doping. The W–Bi–S-tridoped TiO2 exhibited the best photocatalytic activity, compared with TiO2, S-TiO2, W–S–TiO2 and Bi–S–TiO2. The mechanism that enhanced photocatalytic activity might be attributed to the synergistic effect of W, Bi and S.
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JOURNAL OF MEDICINAL CHEMISTRY
·
2026
·
IF 7.3
Yang Liuxin,Cheng Yiyu,Qin Si,Jiang Jun,Zhong Shiyi,Bi Xinyue,Xu Jiali,Wang Kai,Qiu Shuang,Li Xiang
Cellular resilience to therapy often arises from adaptive
mechanisms
that safeguard iron–sulfur (Fe–S) proteins. Here, we
present a rational strategy to overcome such resilience by integrating
two synergistic vulnerabilities, copper toxicity and Fe–S cluster
homeostasis, into a single molecular scaffold. Inspired by a bacterial
sulfur mobilization (SUF) inhibitor, we hybridized its core structure
with a copper-transporting 8-hydroxyquinoline moiety to generate HDQ , HDQ-S , HDQ-Ph , and HDQ-Me . They coordinate copper via hydroxyquinoline and efficiently transport
copper into cancer cells, with HDQ-Me achieving an efficacy
comparable to that of the clinical copper ionophore elesclomol ( ES ). Strikingly, HDQ alone suppresses Fe–S
proteins across multiple functions, including respiration, iron homeostasis,
and DNA replication. HDQ -mediated copper loading triggers
cuproptosis hallmarks, DNA damage, and ATP collapse, generating a
synergistic lethality. This work establishes HDQs as
bifunctional tools that cotarget copper and Fe–S protein homeostasis,
validating a convergent therapeutic strategy against resilient cells.
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MOLECULES
·
2026
·Vol. 31
·期 12
·2014
·
IF 5.1
Bo Yu,Suchang Zou,Tianle Wang,Feng Guo,Weilong Shi,Zhimin Ao
As the growing presence of antibiotic residues in environmental water bodies poses an increasing risk to ecological safety and human health, developing simple and efficient methods for the targeted detection of antibiotics is of particular importance. In this study, we propose a simple method for the one-step hydrothermal synthesis of N, S-co-doped carbon dots (N, S-CDs) using disulfide bonds from discarded badminton shuttlecocks. We investigated the effects of different synthesis temperatures on its performance and confirmed the method’s excellent performance in detecting tetracycline (TC) concentrations, with results demonstrating that varying synthesis temperatures affect the degree and distribution of carbonization, thereby influencing fluorescence intensity. Consequently, employing N, S-CDs-180, which exhibits optimal photoluminescence properties, as the sensing probe for the detection of TC solutions at varying concentrations yielded an excellent linear equation for fluorescence quenching and the detection limit is 1.963 mg/L. Additionally, the fluorescence stability of N,S-CDs-180 was investigated in laboratory water, tap water, seawater, lake water, and industrial wastewater, all of which demonstrated exceptional environmental adaptability. Furthermore, a systematic investigation into the target selectivity of N, S-CDs-180 toward various antibiotics revealed that this material exhibits a sensitive quenching response specifically to tetracycline-class antibiotics while showing no quenching effect on non-tetracycline antibiotics, collectively indicating that the as-prepared N, S-CDs can serve as potential fluorescent probes for the highly selective detection of tetracycline-class antibiotics in complex aqueous systems.
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高影响因子
Chemistry-An Asian Journal
·
2026
·Vol. 21
·期 14
·e70889
·
IF 3.2
Jiajia Wang,Fangting Xie,Heng Lin,Ruiqing Luo,Zhiqi Ma,Duming Wei,Didan Dong,Jingru Liang,Ruiqing Zhang,Wenyu Liang,Yumei Qin,Qingmin Wei,Guangfeng Zeng
Lithium–sulfur (Li–S) batteries, despite their high theoretical capacity (1675 mAh g −1 ) and low-cost sulfur, suffer from poor cycling stability, and rate performance. This is mainly due to sluggish redox kinetics at the sulfur cathode-particularly during the Li 2 S 2 to Li 2 S conversion. In addition, uneven lithium-ion distribution and random diffusion lead to unsafe issues due to unstable lithium deposition and dendrite growth. In this study, an interlayer composed of N, S dual-doped carbon is designed to reinforcing sulfur redox electrochemistry and promoting uniform Li deposition. The NSC interlayer enhances the electrochemical performances via the formation of N … Li and S B 0 active sites, which accelerate polysulfides conversion and regulate Li deposition. As a result, the Li–S batteries with the NSC interlayer achieve an ultrahigh discharge specific capacity of 1215 mAh g −1 at 0.2C and 617 mAh g −1 at a high current of 5C. In addition, the NSC interlayer enables uniform Li deposition for over 1000 h. The work provides a facile method for designing functional interlayers and opens a new avenue for realizing Li–S batteries with high energy efficiency.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Shumei Li,Yijie Wang,Yameng Wang,Maobin Wei,Xin Li,Binrong Li,Lili Yang
All-inorganic CsPbBr 3 perovskite quantum dots (QDs) are promising photocatalysts for CO 2 reduction, but their application is limited by aggregation and photoinduced instability. Herein, a 2D/0D BiOBr/CsPbBr 3 S-scheme heterojunction was constructed by anchoring CsPbBr 3 QDs on BiOBr nanosheets. The 2D BiOBr support promotes uniform QD dispersion and exposes more accessible active sites. More importantly, the intimate interface establishes an internal electric field that favors directional interfacial charge transfer in an S-scheme configuration. This pathway facilitates the depletion of photogenerated holes from CsPbBr 3 while retaining strongly reductive electrons for CO 2 conversion, thereby improving charge separation and contributing to enhanced photostability. The optimized composite delivers CO and CH 4 evolution rates of 170.4 and 33.0 μmol g −1 h −1 , respectively, corresponding to 3.8- and 3.2-fold increases over pristine CsPbBr 3 QDs, together with improved cycling stability. XPS, UPS, KPFM, photoelectrochemical measurements, in situ FTIR spectroscopy, and DFT calculations collectively support the S-scheme mechanism and reveal a lower Gibbs free-energy requirement for COOH* formation. These synergistic effects account for the enhanced photocatalytic activity and stability. Download: Download high-res image (150KB) Download: Download full-size image
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LANGMUIR
·
2026
·Vol. 42
·期 30
·22007-22020
·
IF 4.4
Yuan Guokai,Li Qi,Xue Yuyang,Chen Qixiang,Yu Aijia,Xie Aijuan,Luo Shiping
Metal–organic
frameworks (MOFs) have attracted
considerable
research interest as versatile templating agents for synthesizing
transition metal compounds, particularly in electrocatalytic water
splitting applications due to their tunable spatial architectures
and compositional flexibility. This study investigated the in situ
growth of sulfur–phosphorus codoped NiFe-based MOF catalysts
on nickel foam (NF) substrates (FeNi 3 –CPS/NF) and
their bifunctional activities toward hydrogen evolution reaction (HER)
and oxygen evolution reaction (OER) in 1.0 M KOH. Electrochemical
measurements demonstrate that the FeNi 3 –CPS/NF catalyst
exhibits remarkable catalytic performance with low overpotentials
of 136 mV for HER and 75 mV for OER, and low Tafel slopes of 30.97
(HER) and 8.49 mV dec –1 (OER), respectively. The
charge transfer resistance ( R ct ) values
reach 2.328 Ω during HER and 2.149 Ω during OER, highlighting
efficient electron transfer. The electrochemical active surface areas
(ECSA) were determined as 1200 cm 2 for HER and 1425 cm 2 for OER. Stability assessments reveal excellent durability
under both HER and OER conditions, with current retention rates of
86.32% and 80.71% respectively after prolonged electrolysis. These
findings collectively establish FeNi 3 –CPS/NF as
a promising bifunctional electrocatalyst combining high catalytic
activity with exceptional stability for overall water splitting applications.
The innovative integration of heteroatom doping within the MOF architecture
offers new design strategies for advanced energy conversion materials.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Mingqi Xu,Bibo Cai,Wei Liu,Xinghui Liang,Xinyou He,Baishan Chen,Tai Peng,Xing Ou
All-solid-state lithium-sulfur batteries (ASSLSBs) with polymer electrolytes have high theoretical energy density and improved safety, providing appealing potential for next-generation energy storage. However, limiting the dissolution of long-chain polysulfides (LiPSs) in polymer electrolyte and achieving high S loading in cathodes remains a challenge. To tackle this issue, we demonstrate a 3D electrode composed of a mixture of styrene butadiene rubber and lithium carboxyl methyl cellulose as the binder, equipped with a high concentration of all-solid-state polyethylene oxide (PEO) -based electrolyte filled with LLZTO (Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 ) and LiPSs (named LiPS/LLZTO-CL/S). The synergistic design exhibits outstanding structural stability, preventing the dissolution of long-chain LiPSs, enhancing the kinetics of short-chain LiPSs, alleviating volume expansion, and offering pathways for ion/electron transport. The battery possesses attractive cycling stability and can maintain high capacity retention (1106 mAh g −1 even after 500 cycles) at 0.2 C. Its structural and electrochemical advantages enable stable cycling at a high sulfur loading of 7.0 mg cm −2 and 0.5 C without electrolyte in the cathode. This work proposes a novel strategy for the structural design of high-loading polymer ASSLSBs.
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APPLIED ORGANOMETALLIC CHEMISTRY
·
2026
·Vol. 40
·期 6
·e70586
·
IF 4.3
Jianwei Liu,Menghan Cao,Zhijian Sun,Yuanfang Li,Jiayi Xie,Hongben Zhang,Tao Xie,Yunxiu Zhang,Lihua Wei,Peiyan Bi,Yean Zhu,Fengtian Wu,Shuangshuang Hou,Jianguo Ma
Efficient extraction of uranium from seawater supports the development of nuclear energy. To improve the utilization of the adsorbent binding sites, four poly (ionic liquid)s were synthesized using vinylimidazolium-based ionic liquids as binding sites and divinylbenzene to modulate material distance, designated as P-VEIM-Br, P-VEIM-OAc, P-VEIM-C 3 H 7 COO, and P-VEIM-TFA. The results indicate that P-VEIM-OAc exhibits enhanced uranium adsorption at the pH range of 7.0–10.0 with uranium removal efficiency exceeding 90% at an initial concentration of 10 mg L −1 . The test experiments demonstrated that the maximum uranium adsorption capacity of P-VEIM-OAc is 989 mg g −1 (298 K, pH = 8.0). Mechanistic investigations using Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, density functional theory calculations, and zeta potential measurements revealed that the high adsorption performance arises from electrostatic attraction, π–π stacking interactions and hydrogen bonding. In addition, P-VEIM-OAc showed excellent selectivity for uranium in simulated seawater and retained its performance over five cycles. This strategy provides favorable technical support for improving uranium extraction from real seawater.
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高影响因子
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY
·
2026
·Vol. 122
·期 3
·e70184
·
IF 2
Wang-Xi Shen,Jia-Min Yu,Xin-Yi Liu,Yu-Xing Zhang,Mao-Ye Li,De-Xin Chen,Su Liu
Glutathione S -transferases (GSTs) constitute a critical enzyme superfamily responsible for xenobiotic detoxification in insects. The green peach aphid, Myzus persicae , is a globally significant agricultural pest that has exhibited declining field susceptibility to λ-cyhalothrin (LCT), a widely applied pyrethroid insecticide. While elevated GST activity has been correlated with LCT tolerance in various aphid populations, the precise molecular mechanisms driving this process have not been fully elucidated. In this study, we functionally characterized a delta-class GST gene (designated MpGSTd1 ) from M. persicae . The encoded protein possesses hallmark structural motifs of the GST family, including distinct glutathione-binding (G-site) and hydrophobic substrate-binding (H-site) pockets. Transcriptional profiling revealed maximal MpGSTd1 expression during the late nymphal to adult stages, and its transcript levels were markedly induced following LCT challenge. Biochemical analysis of the recombinant MpGSTd1 protein confirmed its catalytic competency toward the model substrate CDNB, exhibiting a V max of 0.91 µmol/min/mg and a K m of 2.73 mM. Notably, LCT exposure inhibited the enzyme's activity in vitro with an IC 50 of 0.02 mM, and high-performance liquid chromatography (HPLC) assays demonstrated that MpGSTd1 can directly deplete LCT by 11.4%. Furthermore, RNA interference (RNAi)-mediated suppression of MpGSTd1 in vivo significantly elevated aphid mortality upon subsequent LCT exposure. Collectively, these findings delineate an essential role for MpGSTd1 in modulating LCT susceptibility in M. persicae and underscore its potential utility as a molecular target for future aphid management strategies. Summary A delta-class GST from Myzus persicae was characterized. MpGSTd1 transcription is induced by LCT exposure. Recombinant MpGSTd1 depletes LCT in vitro . Knockdown of MpGSTd1 increases insect susceptibility to LCT.
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Chenchen Xiong,Weihuan Li,Jiarui Xing,Shengjun Chen,Yulin Wang,Yang Zhou
Low toughness remains an enduring constraint to cementitious materials. Manipulating calcium silicate hydrate (C-S-H), the “genetic component” of cement, which determines mechanical properties of cementitious materials, presents an attractive strategy for intrinsic toughening. However, the modulation is constrained by small-length scale and limited enhancement. Herein, this work proposes an approach to fabricate nacre-mimetic C-S-H bulk composite with brick-mortar microstructure. The composite exhibits an excellent combination of high flexural strength, toughness and impact resistance, with toughness surpassing pure C-S-H and cement paste by factors of over 1000 times, and even outperforming that of natural nacre, reinforced cement-based materials and existing reported C-S-H-based materials. The nacre-mimetic C-S-H composite also exhibits a 20- to 30-fold increase in impact resistance and flexural strength compared to pure C-S-H, respectively. Multi-scale simulations reveal strengthening and toughening mechanisms, including molecular-scale coordination, nano-asperities, viscoplastic deformation, and crack deflection across micro-macro scales. The developed C-S-H nacre not only achieves remarkably high toughness and broadens the potential for scalable application, but also paves a way for designing advanced bioinspired cementitious and silicate-based materials in structural applications.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Qing Xi,Huimin Yan,Fangxia Xie,Rui Li,Jianxin Liu,Caimei Fan,Zhixin Jin,Hongwei Wang
A directional photogenerated electron transfer channel from ZnIn 2 S 4 to Mo 2 TiC 2 -Ru was formed in ZnIn 2 S 4 /Mo 2 TiC 2 -Ru. • The interface electronic delocalization effect between Ru nanoclusters and Mo 2 TiC 2 synergistically optimizes the water dissociation and hydrogen evolution sites. • ZnIn 2 S 4 /Mo 2 TiC 2 -Ru exhibits excellent photocatalytic hydrogen evolution activity under both visible light and natural light conditions. The photocatalytic hydrogen evolution (PHE) rate on ZnIn 2 S 4 is severely limited by the low utilization of photogenerated electrons and the sluggish reaction kinetics. Driving the directional transfer of photogenerated electrons to the target site is crucial for enhancing the electron utilization efficiency and the PHE performance. Herein, this study rationally designed a ternary composite photocatalyst ZnIn 2 S 4 /Mo 2 TiC 2 -Ru C , in which Mo 2 TiC 2 -Ru C serves as an electron acceptor and efficient active site. The in-situ KPFM and Mott-Schottky results indicate that the establishment of interfacial electron transport channel accelerates the transfer of photogenerated electrons from ZnIn 2 S 4 to Mo 2 TiC 2 . Density functional theory (DFT) calculations verify the strong metal-support interaction (EMSI) and interfacial electron delocalization of Mo 2 TiC 2 -Ru C , which synergistically optimize the water dissociation at Ru nanocluster and the hydrogen evolution desorption at the Mo 2 TiC 2 terminal, promoting the efficient utilization of photogenerated electrons. Therefore, ZnIn 2 S 4 /Mo 2 TiC 2 -Ru C achieved a PHE rate of 6.15 mmol·g −1 ·h −1 under visible light, and demonstrated excellent potential for PHE application under natural light. This study provides a new paradigm for integrating electron transfer dynamics with active site engineering to improve the utilization efficiency of photogenerated electrons in the photocatalytic hydrogen evolution process. Download: Download high-res image (350KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）