JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Ao Sun,Mingliang Sun,Ruyu Zhang,Hongwei Zhu,Yan Xing
As a green alternative to the Haber-Bosch process, photocatalytic nitrogen fixation is currently hindered by three persistent challenges, namely rapid carrier recombination, the high activation energy of the N N bond, and weak N 2 adsorption affinity, which collectively impede its practical application. Herein, an oxygen vacancy (OV)-rich Bi 3 O 4 Br/Bi 2 O 2 CO 3 (BOBC) S-scheme heterojunction is rationally constructed via a facile one-pot in situ synthetic strategy. The formation of the S-scheme heterojunction induces directional charge transfer across the Bi 3 O 4 Br/Bi 2 O 2 CO 3 interface, effectively suppressing charge recombination while preserving the strong reduction potential of Bi 3 O 4 Br. Simultaneously, the introduced oxygen vacancies (OVs) act as dual-role regulators by enhancing N 2 adsorption through increased surface electron density and coordinatively unsaturated active sites, as well as facilitating electron injection into adsorbed N 2 via defect-induced electronic structure modulation, thereby synergistically destabilizing the N N bond and promoting its activation. Furthermore, the presence of OVs significantly improves light-harvesting capability of the heterojunction. Owing to these integrated merits, the optimized 15-BOBC-OVs catalyst exhibits a remarkable photocatalytic nitrogen fixation rate of 151.3 μmol g −1 h −1 in pure water, corresponding to a 12.0-fold enhancement compared with pristine Bi 3 O 4 Br. In situ FT-IR analysis provides direct evidence for an associative distal reaction mechanism during nitrogen reduction reaction. This work demonstrates a concise and effective strategy for the rational design Bi-rich bismuth oxyhalide photocatalysts for high-performance nitrogen fixation by coupling S-scheme heterojunction construction with oxygen vacancy engineering.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Xiaoying Liu,Yu Xie,Yuee Zhong,Jingshu Li,Meiling Liu,Youyu Zhang,Qiang Li
Alkaline phosphatase (ALP) is a critical biomarker for the diagnosis of various diseases. Consequently, the precise detection of ALP activity is indispensable for clinical diagnosis, biomedical research, and the screening of enzyme inhibitors. Meanwhile, organophosphorus pesticides (OPs), a class of highly toxic and persistent environmental contaminants, have raised significant concerns due to their extensive use in agriculture and their potential risks to both ecosystems and human health. Here, we developed a novel photoelectrochemical (PEC) biosensing platform based on an optimized CdS@In₂S₃ heterojunction for the detection of ALP activity and OPs compounds. Through systematic optimization of the In₂S₃ incorporation ratio, a significant enhancement in photoelectric conversion efficiency compared to pristine CdS was achieved. The sensing mechanism exploits the synergistic effects of the ALP mediated hydrolysis of L-ascorbyl-2-phosphate trisodium salt (AAP) to generate ascorbic acid (AA) and the AA-induced photocurrent amplification of the CdS@In₂S₃ heterojunction. This dual signal amplification strategy enabled ultrasensitive detection of ALP activity with a wide linear range of 0.17–17,000 U/L and an exceptionally low detection limit (LOD) of 0.0083 U/L. Chlorpyrifos (CPF) inhibits the activity of ALP, thereby reducing the amount of AA generated from AAP catalyzed by ALP. This results in attenuation of the AA-dependent photocurrent signal. By quantifying the degree of such photocurrent suppression, highly sensitive detection of CPF was achieved with a broad dynamic range of 0.1 ng/mL to 5 μg/mL and the LOD of 0.03 ng/mL. The sensor exhibited excellent operational stability (<5.5% RSD over 50 cycles), high selectivity against common interferents, and reliable performance in complex matrices (89–114% recovery in serum and agricultural samples). This work not only presents a robust analytical tool for food safety and biological monitoring but also provides new insights into the design of multifunctional heterojunction-based PEC sensors for dual-targets detection.
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高影响因子
JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Han Wu,Qingping Wu,Fulu Chu,Jiulin Hu,Yanhua Cui,Congling Yin,Chilin Li
As the most promising anode material for next-generation Li batteries, Li metal never loses the academic attention due to its inherent superiority in high theoretical capacity and low redox potential. However, Li dendrites formed during cycling stubbornly hinder the pace of commercializing high-energy-density Li metal batteries. Here sericin endowed with abundant lithiophilic and anionphilic functional groups on its polypeptide chain is proposed as a conformal protective coating on both Cu and Li metal anodes . The resulting increase of Li-ion transference number (as high as 0.876) and mitigation of tip effect are favorable for the homogeneous Li deposition in island-like or lateral growth mode at electrode/electrolyte interface. Long cycle life (335 cycles) and high Coulombic efficiency (98%) are obtained in sericin decorated Li/Cu cells. Even under extremely high current density of 10 mA cm −2 based on a large capacity of 5 mAh cm −2 , the sericin decorated Li anode also enables a superior cycle stability (160 cycles) in the symmetric cells. The conformal sericin coating effectively inhibits the corrosion of air to Li metal. Sericin modified Li-S batteries exhibit greatly enhanced rate performance (452.8 mAh g −1 at 5 C) and cycling performance (667.8 mAh g −1 after 520 cycles at 1 C).
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高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 17
·10260-10268
·
IF 10.7
Yingfen Li,Xingye Chen,Runxi Wang,Nian Zhou,Fang Huang,Jun Zhao,Zhenghua Su,Shuo Chen,Guangxing Liang
In this study, Sb2S3 was introduced into the two-step selenization process to promote bottom grain growth and reduce the surface roughness of the Cu2ZnSn(S,Se)4 light-absorber layer. The introduction of Sb doping in Cu2ZnSn(S,Se)4 can passivate bulk and interface defects and a small conduction band offset (CBO) can be found, which facilitate the improvement of heterojunction carrier transport properties. Similarly, simulations illustrated that Sb doping improved device efficiency by controlling bulk and interface defects and band alignment. This optimized method facilitated the penetration of Sb, resulting in a high-quality CZTSSe absorber layer. Ultimately, the research culminated in a significant enhancement, yielding a solar cell with an impressive efficiency of 13.11%. These findings offer new possibilities for kesterite solar cells and advance the potential of CZTSSe materials in thin film photovoltaic applications.
研究领域:
材料科学
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光伏技术
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半导体物理
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薄膜太阳能电池
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无机功能材料
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固态电子学
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 28
·期 11
·1438-1447
·
IF 1.907
Xin Liu,Xuewen Guo,Yunfei Zhi,Shaoyun Shan,Yonghao Ni,Qingming Jia
The recent development of sulfur dioxide (SO 2 ) polymerization has seen a renaissance in its chemistry, especially poly(olefin sulfone)s from the copolymerization of SO 2 , and unsaturated hydrocarbons can be found to have many applications, including transient electronic packaging, drug delivery, and electron beam-resistant materials. In this work, a type of functional poly(norbornene sulfone) was synthesized via two different polymerization methods. Aiming to understanding the effects of different polymerization methods on poly(olefin sulfone)s and gain further understanding on the kinetics of poly(olefin sulfone)s's thermal instability, we investigated their detailed thermal degradation behaviors using thermogravimetry and analyzed the resultant kinetics in accordance with three kinetic models. The results supported the conclusion that although the poly(norbornene sulfone)s obtained have different activation energy, the thermal degradation kinetics are the same and also obey the D n type. Copyright © 2017 John Wiley & Sons, Ltd.
研究领域:
高分子化学
·
材料科学
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热分析
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功能高分子
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可控降解材料
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高影响因子
SOLID STATE IONICS
·
2015
·
IF 2.561
Jingyun Yin,Xiayin Yao,Gang Peng,Jing Yang,Zhen Huang,Deng Liu,Yicheng Tao,Xiaoxiong Xu
The effect of solid electrolytes , i.e. Li 10 GeP 2 S 12 and Li 3.25 Ge 0.25 P 0.75 S 4 , on the rate and low temperature performances of LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) cathode in all solid state lithium batteries is investigated. The ionic conductivities for the synthesized Li 10 GeP 2 S 12 and Li 3.25 Ge 0.25 P 0.75 S 4 at room temperature (RT) are 8.27 × 10 − 3 and 2.03 × 10 − 3 S cm − 1 , respectively. These solid electrolytes are demonstrated as electrolytes for all solid state lithium batteries containing NCA cathode for the first time. The results show that Li 10 GeP 2 S 12 based battery exhibits superior rate performance (72.3 mAh g − 1 at 1 C, RT), cycling stability (capacity retention of 87.1% after 30 cycles at 0.1 C, RT) and low temperature performance (79.2 mAh g − 1 at 0.1 C and − 10 °C), which can be ascribed to its higher ionic conductivity and lower interfacial resistance between Li 10 GeP 2 S 12 and NCA cathode. It is indicated that all solid state lithium batteries with NCA cathode and Li 10 GeP 2 S 12 solid electrolyte can realize its potential application in high power and low temperature conditions.
研究领域:
材料科学
·
电化学
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能源存储
·
固态离子学
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电池技术
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 7.9
Yan Wang,Hanbo Wang,Dongyu Zhu,Yahui Xu,Ziming Wang,Yiduo Li,Yumei Tian,Haiyan Lu
The practical application of carbon and its analogues has been impeded by their high cost and the complexity of preparation methods, thereby driving significant interest in identifying cost-effective alternatives for future energy storage applications. Biomass-derived carbon has emerged as promising substitutes for graphene in energy storage devices. However, enhancing their specific surface area and electrochemical performance remains a considerable challenge. We developed a novel approach by utilizing thiourea and sodium hypophosphite as activators and co-dopants to synthesize sulfur and phosphorus co-doped porous carbon derived from biomass waste. This strategy effectively facilitated pore structure rearrangement and introduced a synergistic combination of non-metallic dopants, significantly improving the electrochemical performance for supercapacitors by adjusting the ratio of co-dopants. The resulting sample exhibited a hierarchical porous structure with superior specific surface area (2691.85 m 2 g −1 ) and abundant micropores, endowing a high capacitance (323.5 F g −1 at 1 A g −1 ) and a superb cycling stability (100.37 % after 10,000 cycles). Furthermore, the assembled button-type supercapacitors yielded a remarkable energy density of 31.8 Wh kg −1 coupled with outstanding cyclic stability, retaining approximately 92.17 % after 25,000 cycles. These promising results exemplified a sustainable and cost-effective approach to design electrode materials for high-performance supercapacitors with extended cycle life.
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2026
·
IF 2.8
Yan Gang,Wang Rui,Yin Cuiwei,Zhao Qi,Cao Xuzheng,Zhang Hao,Shi Hongfei
An effective approach to eliminating organic pollutants is to develop step-scheme (S-scheme) heterojunction photocatalysts, because such heterojunctions can effectively promote photogenerated carrier separation while maximally retaining strong redox capability. Herein, S-scheme Bi 2 S 3 /BiOI (BBS) photocatalysts were synthesized using the in situ ion exchange method. Morphology and structure of BBS, as well as its photoelectrochemical properties, among others, were studied and analyzed. The photocatalytic activity of BBS was evaluated by degrading formaldehyde (HCHO) and methyl orange (MO). Compared with BiOI and Bi 2 S 3 , BBS catalysts demonstrated a remarkable improvement in photocatalytic performance under irradiation with visible light ( λ > 400 nm). With the highest photocatalytic efficiency, BBS-0.01 achieved degradation rates of 80% for HCHO (0.16 mg L −1 ) in 90 min and 97% for MO in 210 min. This notable enhancement in photocatalytic performance is attributed to the in situ ion exchange method, which constructs heterojunctions with intimate interfacial contact, uniform component distribution, high carrier separation efficiency, abundant active sites, and excellent stability. Furthermore, the S-scheme heterostructure further enhances catalytic performance owing to its well-matched energy band structures, efficient carrier separation, and the combined effect with the internal electric field (IEF). In addition, BBS photocatalysts exhibit a stronger visible-light response capability, consequently enhancing the overall photocatalytic efficiency. Hence, the BBS heterojunction photocatalyst presented in this work is a highly promising material for environmental applications under visible light. Graphical
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高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Jinrui Liang,Yongqian Han,Yinghong Wang,Xiaofeng Liu,Qiaoli Zhang,Abdul Hameed Pato,Longtao Ren,Wen Liu
Lithium manganese iron phosphate (LMFP) is considered a promising cathode material for next-generation lithium-ion batteries due to its high operating voltage and enhanced energy density compared to lithium iron phosphate (LFP). However, its commercial viability is hindered by poor intrinsic electronic conductivity and rapid capacity fade caused by Jahn–Teller distortion. Herein, we propose a strategy of vanadium and sulfur co-doping to fabricate a carbon-coated LiMn0.6Fe0.4PO4 cathode material (VS-LMFP) via a scalable solid-state synthesis. Rietveld refinement of X-ray diffraction patterns and advanced microscopy techniques confirm that V and S are successfully incorporated into the crystal lattice without forming secondary phases, inducing subtle structural modifications. Density functional theory calculations reveal that this co-doping reduces the band gap from 0.51 to 0.4 eV, significantly enhancing the intrinsic electronic conductivity. The resulting VS-LMFP cathode exhibits an excellent initial discharge capacity of 156.7 mAh g−1 at 0.1 C and maintains 125 mAh g−1 after 600 cycles at 1 C, demonstrating superior rate capability and cycling stability. The enhanced performance is attributed to the synergistic effect of V and S co-doping, which improves Li+ diffusion kinetics, stabilizes the structure against Jahn–Teller distortion, and reduces charge transfer resistance. This work provides a fundamental insight into the mechanism of co-doping and offers an effective pathway for the rational design of high-energy-density, durable cathode materials.
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高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2026
·
IF 5.9
Yong-Hu Ma,Zi-Yi Gao,Ying-Hong La,Fu Ma,Hong-Jian Zhao
First SnS 2 /Bi(C 2 O 4 )OH heterojunction via one-step hydrothermal method. • Sn–S–Bi bonds induce IEF for S-scheme charge transfer. • Oxygen vacancies and S-scheme synergy enhance redox ability and resist photocorrosion. • 94.3% TCH (15 mg/L) degraded in 30 min, 231-fold vs. SnS 2 . • 97.9% RhB (30 mg/L) degraded in 60 min, 17.2-fold vs. SnS 2 . This study reports the first construction of an S-scheme SnS 2 /Bi(C 2 O 4 )OH heterojunction via a one-step hydrothermal route. Combined X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analyses confirm strong interfacial coupling rather than physical mixing, while scanning electron microscopy (SEM) reveals a distinctive “snow-on-petals” morphology, with SnS 2 nanoparticles uniformly dispersed on Bi(C 2 O 4 )OH nanosheets. X-ray photoelectron spectroscopy (XPS) further confirms the presence of Sn–S–Bi interfacial bonds, accompanied by localized electron redistribution, laying the chemical foundation for S-scheme charge transfer. Electron paramagnetic resonance (EPR) analysis reveals a notable increase in oxygen vacancy content. This enrichment of oxygen vacancies, together with the chemical bonding at the S-scheme heterojunction interface, synergistically suppresses SnS 2 photocorrosion. Ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis DRS) shows substantially improved visible-light harvesting, and electrochemical impedance spectroscopy (EIS) and photocurrent measurements corroborate superior charge separation and transport efficiency. Interestingly, although the specific surface area of the composite (35.44 m 2 /g) is lower than that of pristine SnS 2 (103.24 m 2 /g), the composite exhibits markedly higher photocatalytic activity, indicating that the enhancement arises from interfacial charge transfer and electronic modulation rather than from surface area alone. Consequently, the 30%SnS 2 /Bi(C 2 O 4 )OH composite achieves 93.4% removal of tetracycline hydrochloride (15 mg L −1 ) within 30 min and 97.9% removal of rhodamine B (30 mg L −1 ) within 60 min, with apparent rate constants of 231 and 17.2 times those of pure SnS 2 . Radical scavenging tests identify ·O 2 − and h + as the dominant reactive species, while total organic carbon (TOC) analysis indicates a mineralization rate of 77.1% for TCH, confirming deep oxidation beyond mere decolorization. Coupled with liquid chromatography–mass spectrometry (LC–MS) elucidation of the degradation pathway, this work offers a new paradigm for the rational design of high-performance S-scheme heterojunctions through interfacial chemical bonding and defect engineering. Graphical : Photocatalytic Degradation Mechanism. Download: Download high-res image (243KB) Download: Download full-size image
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yaning Du,Bing Zhu,Yangai Liu,Qingyu Zhang,LiMing Wu,Shengyu Yang,Zekun Wang
Provides a novel strategy utilizing mineral to synthesize high-performance sulfur host. • HNT@NC-MS 2 (M = Co, Ni, Fe) exhibit superior anchor and catalytic abilities for LiPSs. • HNT@NC-CoS 2 /S battery exhibit outstanding rate performance and cycle stability. • HNT@NC-CoS 2 shows broad application prospects in practical high-performance LSBs. Lithium-sulfur batteries (LSBs) are impeded by the shuttle effect arising from soluble lithium polysulfides (LiPSs) and the sluggish kinetics of sulfur redox reactions. To tackle these issues, we designed a ternary sulfur host comprising hollow tubular halloysite (HNT) coated with N‑doped carbon layer and decorated with transition metal sulfide (CoS 2 , NiS 2 , or FeS 2 ) nanoparticles via high‑temperature carbonization and in situ solvothermal synthesis. The hollow nanotubular structure of HNT provides space for sulfur loading and volume accommodation, the carbon shell ensures electrical conductivity, and the MS 2 nanoparticles offer polar sites for LiPSs chemisorption and catalytic conversion. Among the three sulfides, CoS 2 exhibits the strongest catalytic activity, particularly in accelerating the liquid‑phase conversion of long‑chain Li 2 S 8 to short‑chain Li 2 S 4 . Benefiting from this synergy, the HNT@NC-CoS 2 /S cathode delivers an initial capacity of 1018.4 mAh g −1 at 0.5 C with 81.5% retention over 200 cycles. At a high sulfur loading (3.5 mg cm −2 ) and a lean electrolyte-to-sulfur ratio (E/S ≈ 10 µL mg −1 ), the cell demonstrates high areal capacity of 3.1 mAh cm −2 after 50 cycles while delivering enough energy to illuminate an LED for approximately 30 min. This work provides a rational pathway for constructing adsorption‑catalytic integrated sulfur hosts and promotes the value‑added utilization of clay minerals in energy storage. Download: Download high-res image (282KB) Download: Download full-size image
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Chenxi Gao,Changcun Han,Hao Xiang,Zhuo Peng,Yinbo Tong,Chengyi Zhang,Hui Lv,Yizhong Huang
Precise control of the photogenerated charge dynamics and the electronic configuration of active sites is key to enhancing the performance of photocatalytic hydrogen-producing materials. Here, we report an efficient one-pot strategy to prepare sulfur-doped g-C 3 N 4 (SCN). Furthermore, a PtNd/SCN composite photocatalyst was successfully fabricated by loading a platinum (Pt)‑neodymium (Nd) alloy onto the SCN surface via an H 2 reduction method. Using trithiocyanuric acid as a single precursor to supply C, N, and S enables uniform S doping within the g-C 3 N 4 framework, broadening the light absorption range and optimizing the band structure. Pt serves as the primary hydrogen-evolving active site, while Nd acts as an “electronic co-catalyst” for Pt, forming strong electronic interactions through its unique 4f orbital structure. HRTEM and XPS analyses confirm the formation of a Pt Nd alloy interface and directional electron transfer from Nd to Pt, effectively modulating the Pt d-band center and optimizing the adsorption free energy of hydrogen intermediates, thereby significantly enhancing hydrogen evolution reaction (HER) kinetics. The experimental results show that the optimized PtNd/SCN composite photocatalyst exhibits a markedly enhanced photocatalytic hydrogen production rate under simulated sunlight, reaching 5468 μmol·g −1 ·h −1 —5 times higher than Pt/CN (1074 μmol·g −1 ·h −1 ) and 1.3 times that of Pt/SCN (4076 μmol·g −1 ·h −1 ). PL, TRPL, and photoelectrochemical measurements confirm that the introduction of Nd promotes the migration of photo-generated electrons from SCN to Pt, thereby significantly suppressing carrier recombination. This study reveals the unique mechanism by which the rare earth element Nd acts as an electronic regulator for the d-band center of Pt, providing new insights into the design of photocatalytic systems with low Pt loading. Download: Download high-res image (144KB) Download: Download full-size image
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