Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 30
·16152-16162
·
IF 14.511
Xin Dai,Kunyang Zou,Weitao Jing,Peng Xu,Junjie Sun,Shengwu Guo,Qiang Tan,Yongning Liu,Tengfei Zhou,Yuanzhen Chen
The electron-deficient property of the atoms in functional materials endow them with tunable adsorption and catalysis effects on polysulfides, thus improving the performance of lithium–sulfur batteries. In this work, Li2B4O7 nanoparticles, which have abundant electron deficiencies derived from the [BO3] Lewis acid units, were uniformly cladded in the carbon nanofibers (LBO–CNF) and employed as interlayers for Li–S batteries. This functionalized interlayer expressed a high adsorption energy of ∼3.6 eV for polysulfides (e.g., Li2S6 and Li2S4) and effectively suppressed the polysulfides' shuttle behavior, delivering a high reversible capacity of 1242.6 mA h g−1 at 0.2C and good cycling performance with a low fading rate of 0.068% per cycle at 1C, thus effectually inhibiting the phenomenon of self-discharge. Besides, the lithiation reaction kinetics was also effectively enhanced, enhancing the rate performance of the battery to 644 mA h g−1 at 5C. This work provides a new strategy to enhance the electrochemical performance of Li–S batteries by applying the compounds of electronic-deficiency B-species and functionalized carbon.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2014
·
IF 3.785
Jing Li,Lu Xu,Hongzhuo Liu,Yan Wang,Qifang Wang,Hongtao Chen,Weisan Pan,Sanming Li
The purpose of this study was to prepare and characterize nanoporous silica@poly(ethyleneimine)s (NS@P) xerogel and methanol modified NS@P xerogel synthesized with biomimetic method, and investigate controlled release behavior of propranolol hydrochloride (PNH) loaded carrier materials in vitro and in vivo. Preparation was conducted at ambient conditions, and NS@P xerogel as well as PNH loaded NS@P xerogel were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and differential scanning calorimeter (DSC). Investigations on morphology and porous characteristics of NS@P xerogel and methanol modified NS@P xerogel were evaluated with scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption. The results showed that the order of morphology compactness was NS@P xerogel > 25%NS@P xerogel > 75%NS@P xerogel because PEIs scaffold ability for silica condensation and forming hydrogen bond weakened with increasing volume ratio of methanol modification. Moreover, S BET decreased and uniformity of pore size distribution was interrupted after methanol modification. PNH loaded carrier materials displayed controlled release, and release effect was related with pore size of materials and PEIs scaffold ability. In vivo pharmacokinetic study demonstrated that release of PNH was delayed due to the PNH incorporated inside carrier materials and controlled release effect was in accordance with in vitro results.
✓ 已验证
DOI
高影响因子
FUEL
·
2025
·
IF 7.5
Yanxu Wang,Jiao Shen,Lijia Huang,Yi Yuan,Yaoqi Huang,Ge He,Yuan Wang,Shaojun Yuan
S-scheme heterojunction photocatalysts have emerged as a promising strategy to overcome the limitations of conventional systems by enabling efficient charge transfer while preserving strong redox capability. In this study, a novel flower-like In-TiO 2 @Bi 2 MoO 6 S-scheme heterojunction was developed via a simple hydrothermal synthesis for visible-light-driven photocatalytic desulfurization of H 2 S. The optimized In-TiO 2 -0.4@Bi 2 MoO 6 composition (molar ratio of In-TiO 2 to Bi 2 MoO 6 = 0.4) achieved complete H 2 S removal within 120 min under visible-light irradiation, exhibiting outstanding activity, operational stability, and adaptability to various desulfurization conditions. Mechanistic investigations using VB-XPS, UPS, ESR, DRIFTS and DFT calculations confirmed that the S-scheme configuration accelerated photoinduced charge separation, reduced electron migration distances, and maintained a high redox potential, thereby promoting efficient generation of reactive oxygen species for sulfur conversion. The synergistic interaction between In-TiO 2 and Bi 2 MoO 6 provides a robust platform for efficient, selective, and durable desulfurization under mild conditions. These findings offer a mechanistic framework for designing next-generation S-scheme photocatalysts for environmental remediation and energy-related applications.
✓ 已验证
产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Yanyan Zhao,Jing Zhang,Xiaolong Li,Hailun Su,Lin Yang,Jianjun Zhang
A stable Py-HOF was prepared by employing H 4 TBAPy as precursor. • A TiO 2 /Py-HOF composite with excellent photocatalytic activity was constructed. • T/Py-HOF shows stability due to strong H-bonds and π–π interactions of H 4 TBAPy. • S-scheme charge transfer pathway was verified via ISI-XPS, fs-TAS, and DFT. • T/Py-HOF display good photocatalytic H 2 O 2 production yield and sterilization. Hydrogen-bonded organic frameworks (HOFs) hold substantial potential for application in photocatalysis. However, their practical application in photocatalytic H 2 O 2 generation and antibacterial activity remains hampered by intrinsically inefficient electron-hole separation and inadequate structural stability. Herein, a Py-HOF photocatalyst was prepared by employing 1,3,6,8-tetrakis (p-benzoic acid) pyrene (H 4 TBAPy) as precursor via self-assembly method, and the titanium dioxide/Hydrogen-bonded organic framework (TiO 2 /Py-HOF, T/Py-HOF) S-scheme heterojunction was rationally fabricated via an in-situ synthesis. Due to the strong hydrogen bonds and π–π interactions of H 4 TBAPy, the T/Py-HOF S-scheme heterojunction displays super stability. Furthermore, in-situ irradiated XPS, femtosecond transient absorption spectroscopy, and DFT calculations verify the S-scheme carrier migration mechanism within the T/Py-HOF heterojunction. Thanks to the ultrafast charge-transfer and excellent redox ability of the T/Py-HOF S-scheme photocatalyst, the optimally formulated T/Py-HOF-5% achieves a remarkable H 2 O 2 production rate of 1890 μmol g −1 h −1 , corresponding to approximately 15.24 and 6.19-fold enhancements compare to the pure TiO 2 and bare Py-HOF, respectively, along with excellent stability. Furthermore, the T/Py-HOF heterojunction also exhibits superior photocatalytic sterilization activity against Escherichia coli (E. coli) , achieving almost 100% of E. coli inactivation after 90 min light irradiation. Collectively, this work offers a novel insight for designing high-efficiency HOF-based S-scheme photocatalysts in energy and environment applications. A novel TiO 2 /Py-HOF S-scheme heterojunction was fabricated for efficient photocatalytic H 2 O 2 production and excellent photocatalytic E. coli sterilization. Download: Download high-res image (202KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Ying-hong La,Wen-jia Ha,Yong-hu Ma,Zhi-qiang Wu,Hong-jian Zhao
In this work, an S-scheme heterojunction photocatalyst composed of Fe-MOF-NH 2 -modified BiOCl (denoted as BFN) was successfully prepared via a one-step hydrothermal technique for the efficient photocatalytic (PC) decomposition of tetracycline hydrochloride (TC-HCl). The morphology, crystal structure, composition, specific surface area, and photoelectric characteristics of BFN were systematically characterized using multiple techniques. XRD patterns confirm the successful fabrication of Fe-MOF-NH 2 /BiOCl (BFN) heterostructures. Introducing Fe-MOF-NH 2 shrinks BiOCl lattices via partial replacement of Bi 3+ with smaller Fe 3+ , which further exposes more active BiOCl (110) facets. SEM images display BiOCl nanosheets evenly grown on spindle hexagonal Fe-MOF-NH 2 to create compact heterointerfaces. This structure optimizes pore configuration and light capture. Owing to its elaborate heterojunction and regulated crystal texture, BET data confirm the optimal BFN possesses a high specific surface area of 116.2 m 2 ‧g −1 . UV–vis DRS further verifies a 420 nm red shift in its light absorption edge. XPS and EPR analyses reveal that the oxygen vacancy concentration in the heterojunction is significantly increased, 3 and 8 times higher compared to those of Fe-MOF-NH 2 and BiOCl, respectively. The compact S-scheme heterojunction constructs a directional charge-carrier transfer pathway. This structure strongly suppresses photocarrier recombination while preserving robust redox potentials. Higher photocurrent density and lower EIS impedance jointly confirm accelerated charge separation. PC experiments demonstrate that the 70% BFN sample achieves markedly higher degradation efficiency for TC-HCl under Light-emitting diode (LED) lamp irradiation compared with the individual components, and the degradation process involves multiple reactive species, including h + , ·O 2 − , and ·OH. LC-MS analysis revealed three possible degradation pathways, and hydroponic toxicity tests using mung bean as the model plant confirmed that the TC-HCl degradation products exhibit substantially reduced biotoxicity and even exert a certain growth-promoting effect. This study unveils the quadruple synergism of extended light absorption, S-scheme carrier migration, abundant oxygen vacancies and enhanced surface adsorption, offering experimental and theoretical support for bismuth/MOF photocatalysts in antibiotic wastewater remediation and agricultural ecological protection.
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2026
·
IF 6.8
Di Ma,Xiaoming Huang,Pengfei Jiang,Minghao Zhai,Chunli Ma,Na Wei,Hongting Han,Wanan Cai,Tingting Zhou,Haijun Niu
Electrochromic supercapacitors (ECSCs) find extensive applications in flexible wearable, self-powered smart windows because of their visual energy storage characteristics. ECSCs simultaneously achieve rapid response, high transmittance and high specific capacity. Due to O, S heterocycle with more electron cloud which will bring more electroactive properties, two monomers and a series of polyamides (PAs) films containing furan, thiophene blocks (named as PA1, PA2, PA3, PA4, PA5 and PA6) are designed and synthesized. All the six PAs demonstrate a colorless to dark green/dark blue, while PA2 shows an initial optical contrast of 86 %, bleaching time (t b ) and coloring time (t c ) of 0.9 s and 1.2 s. Simultaneously PA2 delivers a specific capacitance of 197.2F g −1 at a current density of 1 A g −1 . When the current density rises to 20 A g -1 from 1 A g −1 , its capacitance retention rate remains at 79 % of its initial capacitance after undergoing 3000 charge–discharge cycles. ECSCs with PA1, PA2 assembled exhibit a ΔT of 70 % and 76 %. The ECSCs have a specific capacitance (60.1F g −1 and 69.1F g −1 at 1 A g −1 ), with 70 %, 69 % of initial specific capacitance following 2000 consecutive charge–discharge cycles. These PAs containing O, S heterocycle cores demonstrate promising prospect for ECSCs.
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULES
·
2026
·
IF 5.7
Zuo Peng,Li Tingting,Song Shihao,Chu Weizhuo,Gu Xiaoyan,Zhu Youliang,Li Haolong
Sulfonated poly(arylene alkane)s with all-carbon aromatic backbones are promising proton exchange membrane (PEM) materials, but their high conductivity generally relies on a high degree of sulfonation, which often causes excessive water swelling and compromises dimensional stability. Here, we report a side-chain design that introduces sulfur-containing hydrogen-bonding sites to promote proton transport while preserving dimensional stability. Haloalkyl-functionalized poly(arylene alkane)s were grafted with mercaptoalkyl sulfonates, yielding sulfonic acid-terminated side chains bridged by thioether linkages. The resulting polymers form continuous ionic domains through backbone/side-chain microphase separation, while thioether and sulfonic acid groups cooperate to construct dense hydrogen-bonding networks for proton hopping. The optimized SPBT-1 membrane exhibits a high proton conductivity of 308 mS cm –1 at 80 ° C, 1.6 times that of NR212, with comparable swelling. The H 2 /air fuel cell based on SPBT-1 achieves a high power density of 780 mW cm –2 and stable open-circuit operation over 80 h. These results demonstrate side-chain sulfur functionalization as an effective strategy for highly conductive PEMs.
✓ 已验证
产品关联
DOI
高影响因子
AICHE JOURNAL
·
2026
·
IF 4.4
Yaxin Cai,Xiaoyan Chen,Fuying Zhang,Ting Qiu,Qinglian Wang,Jie Chen
Ethyl methyl carbonate (EMC) is mainly prepared via the transesterification between ethanol (EtOH) and dimethyl carbonate (DMC) using alkaline catalysts. However, reported catalysts exhibit deactivation, environmental pollution, and low efficiency. Herein, we prepared a heterogeneous catalyst based on phenolate anion ([PhO] − )-functionalized poly(ionic liquid)s (PILs). Catalytic performance improved via rational PIL framework design with quaternary ammonium cations, which co-tuned polymer swelling and [PhO] − electronegativity. Among the series, [N 3 PIL][PhO], the most active catalyst, featuring high swelling degree and strong [PhO] − electronegativity, was validated by experiments and DFT calculations. Under optimized conditions (DMC/EtOH molar ratio = 3, catalyst dosage = 5 wt%, reaction time = 5 h, temperature = 100°C), EMC yield and selectivity reached 53.57% and 95.75%, respectively. This work offers a viable strategy to overcome conventional catalyst drawbacks and new insights for efficient heterogeneous EMC synthesis catalyst design.
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 16
·984
·
IF 4.8
Yangfan Du,Guanglong Jing,Keyi Han,Xin Zhang,Liang Hou,Yong Li
The global demand for hydrogen peroxide (H2O2) continues to increase, and photocatalytic H2O2production is regarded as a promising alternative technology due to its mild, safe, and environmentally friendly characteristics. ZnIn2S4has demonstrated promising application potential in photocatalytic H2O2production owing to its unique two-dimensional layered structure and broad spectral response. However, its performance is severely limited by rapid charge recombination and sluggish charge migration. To address this challenge, a ZnIn2S4/C3N4S-scheme heterojunction was successfully constructed via a simple oil-bath method by assembling ZnIn2S4nanoflowers on C3N4nanosheets. Systematic structural characterizations and performance evaluations demonstrate that the construction of the S-scheme heterojunction effectively promotes the spatial separation and surface migration of photogenerated charge carriers, thereby significantly enhancing photocatalytic activity. Under optimal conditions, the ZIS/CN-10 sample (C3N4to ZnIn2S4mass ratio of 10%) achieves the highest photocatalytic H2O2production rate of 825.8 μmol g−1h−1. This work provides new insights and theoretical guidance for the rational design of efficient and stable ZnIn2S4-based photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 30
·e74050
·
IF 2.3
Yuqing Jiang,Guowei Liu,Hongxu Jia,Yuyue Zhang,Hongzhe Tian
Due to the potential risks, pesticide residue analysis has attracted widespread attention. In this study, an “off-on” fluorescence sensor for rapid detection of three target insecticide residues has been developed based on the cascade reaction system caused by acetylcholinesterase/choline oxidase dual enzyme. N and S-doped carbon quantum dots (N, S-CQDs) were used as the fluorescent probe. The substrate acetylcholine chloride was hydrolyzed to choline by acetylcholinesterase. Subsequently, choline oxidase oxidized the resulting choline to betaine and H 2 O 2 , and the generated H 2 O 2 quenched the fluorescence of N, S-CQDs. The selected insecticides inhibited acetylcholinesterase activity, and therefore the sensing system's fluorescence was recovered. The linear ranges for indoxacarb, propamocarb, and fenobucarb were 3.0×10 −3 –8.0×10 −2 mg/L, 2.0×10 −3 –5.5×10 −2 mg/L, and 2.2×10 −3 –6.5×10 −2 mg/L, respectively. The corresponding limits of detection ranged from 2×10 −3 to 3×10 −3 mg/L. For spiked concentrations between 5 µg/L and 0.1 mg/L, the average recoveries of the selected insecticides ranged from 99.6% to105%, with relative standard deviations in the range of 1.2% to 4.8%. The proposed method presents the advantages of simple operation without using requiring specialized apparatus, fast speed, low cost, and environmental friendliness. These benefits make it suitable for rapid detection of the selected insecticide residues in real samples. Graphical In the present study, a fluorescence sensor was developed based on enzyme-mediated cascade reaction on N, S-CQDs. N, S-CQDs in the sensor present excellent fluorescence properties. Three target insecticides can be rapidly detected in real samples with easy operation and cost-effectiveness. The selected insecticides can be detected with the LODs from 2.0 ng/mL to 3.0 ng/mL.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Rong Zhang,Jiaqi Wang,Shiying Yang,Wenjun Kuang
Gold-cyanide complex (Au(CN) 2 − ) prevalent in alkaline metallurgical/electroplating wastewater poses significant hazards, requiring environmentally friendly treatments. As a prominent amphoteric reductant, aluminum (Al 0 ) tends to react with water, regulating its electron transport process is crucial. Herein, a novel copper-modified aluminum composite (Cu@Al 0 ) was synthesized via one-step ball milling to tailor electron transport rate and direction, enabling rapid and efficient removal of Au(CN) 2 − (nearly 100% in 30 min) with simultaneous recovery of metallic gold. Specifically, over 92.13% of the gold was recovered as zero-valent gold (Au 0 ), whereas ∼100% total cyanide retained in the solution. Scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirmed that Au(I) was reduced to Au 0 and attached to Cu@Al 0 surface. The recovery of gold was primarily relied on the high electron utilization efficiency of Al 0 (94.51%), where electrons were preferentially allocated to the reduction of Au(CN) 2 − rather than to the side reaction of hydrogen production. It was observed that copper played a crucial role. During ball milling, interfacial interaction between Al 0 and CuSO 4 ·5H 2 O was induced, contributing to the in situ formation of zero-valent copper (Cu 0 ) through a solid-phase chemical reaction. During the decomplexation of Au(CN) 2 − , Cu 0 served as the affinity site for gold and an electron transport bridge, preventing the excessive corrosion of Al 0 under alkaline conditions, and controlling the transmission rate and direction of electrons and providing more electrons to Au(CN) 2 − . In conclusion, this study employs a novel approach to recover valuable resource from Au(CN) 2 − , offering a promising avenue for the treatment of metallurgical/electroplating wastewater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CEMENT AND CONCRETE RESEARCH
·
2026
·
IF 14
Zedong Zhou,Hangxi Liu,Juanlong Li,Yiru Yan,George Dan Miron,Barbara Lothenbach,Biwan Xu,Ming Fang,Xiaoli Tan,Bin Ma
Calcium silicate hydrate (C-S-H), the principal binding phase in Portland cement, plays a critical role in the immobilization of heavy metals, yet a quantitative and mechanistic understanding of Cu 2+ uptake by C-S-H remains incomplete. This study investigates the immobilization behavior of Cu 2+ by C-S-H with systematically controlled Ca/Si ratios (0.6–1.6) and develops a thermodynamically consistent sublattice solid-solution model. The C-S-Hs were synthesized under sorption equilibrium conditions and characterized to determine their structural evolution with Ca/Si ratio. Cu 2+ sorption was subsequently examined on pre-synthesized C-S-Hs, combined with spectroscopic analyses to elucidate Cu coordination environments. The results show that Cu 2+ is immobilized predominantly through structural incorporation at low Cu 2+ loadings rather than hydroxide precipitation. With increasing Cu 2+ concentration, Cu 2+ progressively intercalates into the interlayers of C-S-H, partially replacing interlayer Ca 2+ and forming Si-O-Cu linkages associated with Q 2 silicate sites. The Ca/Si ratio strongly controls both uptake capacity and binding mechanism. High Ca/Si ratios promote silicate-chain polymerization through conversion of Q 1 to Q 2 units, whereas extremely low Ca/Si ratios induce redistribution between Q 2 and Q b 2 species. At intermediate Ca/Si ratios, Cu 2+ is mainly stabilized as hydroxyl-associated species. Once the sorption capacity is exceeded, excess Cu 2+ transforms into CuO under alkaline conditions. Based on these observations, a CASH+Cu thermodynamic model incorporating five Cu-bearing endmembers was developed and calibrated using both aqueous and solid-phase data. The model quantitatively reproduces Cu uptake, solution chemistry, and phase assemblages, providing a predictive framework for Cu 2+ retention in cementitious systems.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）