COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yuliang He,Guangtao Wei,Ni Wang,Ziquan Zhong,Linye Zhang
Waste residue red mud is utilized to synthesize a layered double hydroxid composite. • An S-scheme charge transfer pathway in CN-LDH/ARM photocatalyst is proved. • Antibiotics electrons can be derived via the introduced n-state sites in CN-LDH/ARM. • Synergistic non-radical and radical pathways arrive efficient antibiotics degradation. • The aquatic toxicities of GAT solution are obviously reduced by CN-LDH/ARM. A acidified red mud (ARM) based layered double hydroxide (LDH) composite with graphitic carbon nitride (g-C 3 N 4 ) was successfully constructed via a mechanochemical synthesis (MCS) method (naming CN-LDH/ARM). The synthesized CN-LDH/ARM was used for the efficient degradation of gatifloxacin (GAT) under visible light (CN-LDH/ARM photocatalytic system). After 120 min of reaction time, 99% of GAT (20 mg/L, 300 mL) could be degraded under the reaction conditions: [CN-LDH/ARM]= 0.03 g/L, [H 2 O 2 ]= 120 mmol/L and initial pH= 6.5. In-situ X-ray photoelectron spectroscopy (SI-XPS) indicated that an S-scheme charge transfer pathway between ARM (Fe 2 O 3 ) and LDH was formed in CN-LDH/ARM under visible light. Density functional theory (DFT) calculation suggested that the introduced g-C 3 N 4 could act as strong electron donor structure (calling n-state sites) to effectively promote interfacial charge transfer between GAT and CN-LDH/ARM. In the CN-LDH/ARM photocatalytic system, ·OH, h + and high-valent metal species (Fe(IV)) were the primary active species. This study provides a sustainable strategy for constructing RM-based photocatalysts with enhanced photo-Fenton activity for antibiotic wastewater treatment. Download: Download high-res image (316KB) Download: Download full-size image
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高影响因子
COMPOSITES PART B-ENGINEERING
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2015
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IF 2.983
Junjie Li,Chunhua Lai,Xiaole Jia,Lei Wang,Xiongzhi Xiang,Cheuk-Lam Ho,Hua Li,Wai-Yeung Wong
Recently, the use of polymers as thermoelectric materials has attracted considerable attention. However, relatively few studies have investigated the effects of polymer structures on the corresponding thermoelectric properties of the polymers. In this work, a series of poly(3-methylthiophene methine)s (PMMs) were synthesized for use as thermoelectric materials , and the effects on the Seebeck coefficient of donor or acceptor side groups at the methine carbon were studied. The PMMs with strongly electron-withdrawing and electron-donating groups exhibited the highest Seebeck coefficients. Motivated by the high Seebeck coefficients of the selected PMMs, PMM/graphite composites were prepared via solution mixing followed by mechanical ball milling and cold pressing. The thermoelectric properties of the composites were investigated as a function of the graphite (G) concentration. The highest ZT (6.23 × 10 −3 ) was measured for the poly[(3-methylthiophene-2,5-diyl) ( p -(methoxy)benzylidene)]/G composite that contained 90 wt% G. The results of this work suggest that the thermoelectric properties of polymer-inorganic composites can be improved by designing polymers with high Seebeck coefficients.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-9
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IF 15.7
Lu Zong-Bin,Peng Shun-Ran,Wang Zhe,Xiong Yu,Xia Lei,Chen Guang,Nie Xuan,Hong Chun-Yan,Zhang Ze,You Ye-Zi
Developing high-performance CO 2 -based polymers is promising to address the challenges of CO 2 sequestration and the environmental impact of petroleum-based plastics. The δ-lactone 3-ethylidene-6-vinyltetrahydro-2H-pyran-2-one and its derivatives, synthesized from CO 2 with 1,3-butadiene, have emerged as very promising CO 2 -derived monomers. However, their general ring-opening polymerizations face challenges with thermodynamics and kinetics, generally resulting in long reaction times, low conversions, and low-molecular-weight polyesters with poor mechanical properties. Herein, we report a dual isomerization-driven cationic ring-opening polymerization (DI-CROP) of a CO 2 -derived thionolactone, 3-ethyl-6-vinyltetrahydro-2H-pyran-2-thione, in which the relayed S/O and vinyl isomerizations significantly enhance polymerization activity, enabling the rapid synthesis of high-molecular-weight CO 2 -based polythioesters, achieving near-quantitative conversion within just a few minutes. Also, the relayed S/O and vinyl isomerizations in DI-CROP can easily migrate C=C substituents on the ring of thionolactone into its backbone. These features further enable the production of sustainable CO 2 -based materials through efficient copolymerization and post-polymerization functionalization. This study enriches the realm of isomerization-driven polymerizations, and provides a new synthetic approach to CO 2 -derived polymeric materials.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Jintao Dong,Jing Hong,Zhishuai Wang,Pengjun Liu,Gaopeng Liu,Lina Li,Shengqun Cao,Bin Wang,Jiexiang Xia
For achieving the broad-spectrum removal ability of g-C 3 N 4 materials for various contaminants, it is assessed as critical core by synchronously enhancing the solar absorption-conversion and PMS adsorption-activation process of g-C 3 N 4 materials. In this manuscript, S-scheme high-entropy FeMnCoNiCu-LDHs/self-assembly carbon nitride nanotubes (LDHs/SCN) heterojunction were established by mechanical-assisted ball milling, calcination, and hydrothermal method. Contributed to the synergistic effect of multi-metal elements in FeMnCoNiCu-LDHs materials, the photocatalytic PMS activation efficiency of LDHs/SCN composites is benefit from the efficient conversion of Fe 3+ /Fe 2+ , Mn 4+ /Mn 3+ , Co 3+ /Co 2+ , Ni 3+ /Ni 2+ , and Cu 2+ /Cu + redox cycles. So, under 0.1 mM PMS and visible light irradiation, the removal efficiency of bisphenol A (BPA), ciprofloxacin (CIP), 2-mercaptobenzothiazole (MBT), oxytetracycline (OTC), tetracyclines (TC), and sulfadiazine (SD) pollutants in LDHs/SCN-0.2/PMS/Light system reach to 91.1 %, 82.8 %, 94.7 %, 86.8 %, 91.4 % and 63.0 %, respectively. Furthermore, the enhancement mechanism of the photocatalytic PMS activation performance of LDHs/SCN-0.2/PMS/Light system has been elucidated through ESR, UPS, ROS quenching experiments, and band structure analysis. The LC-MS and T.E.S.T. software was successively employed for intermediates transformation pathways and bio-toxicity during BPA degradation. Consequently, this work lays a foundational basis for the design and construction of highly efficient S-scheme heterojunctions for advanced wastewater purification.
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Journal of Water Process Engineering
·
2026
·
IF 6.6
Yichao Wang,Xuan Wu,Quanyou Zhao,Yujie Fu,Xijin Li,Ruidian Su,Mengchun Gao
Electro-Fenton (EF) technique is recognized as one of efficient advanced oxidation technologies for degrading recalcitrant biological pollutants. However, the practical application of EF technique suffers from poor 2e − oxygen reduction reaction (ORR) selectivity and low H 2 O 2 production efficiency. To settle above-mentioned issues, a natural air diffusion electrode (NADE)-EF system was constructed by using S doped N-rich biochar as a cathode, which was synthesized from waste mantis shrimp shells and thiourea. By modulating the biochar/thiourea ratio, the S doped N-rich biochar cathode achieved selective 2e − ORR and highly efficient H 2 O 2 production. The production rate of H 2 O 2 on the S doped N-rich biochar cathode was 1.56 times that on the undoped biochar cathode. The S doping enhanced the O 2 adsorption and electron transfer and facilitated the *OOH intermediate formation. The tetracycline degradation rate in the S doped N-rich biochar NADE-EF system was 2.29 times that of the undoped biochar NADE-EF system. The S doped N-rich biochar NADE-EF system showed good cyclic stability and anti-interference ability. This work provides the insights into the structure-activity relationship between heteroatom doping and H 2 O 2 production through 2e − ORR and proposes an efficient NADE-EF technique to remove antibiotics from water.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Ruiming Fang,Jiahe Sun,Mingnv Guo,Yanglin Chen,Zukhra C. Kadirova,Zhongqing Yang,Ziqiang He,Huaqiang Chu
The photothermal catalytic reduction of CO 2 to synthesize high-value hydrocarbon fuels has attracted significant attention. However, current conversion efficiency remains constrained by the dual limitations of insufficient photogenerated carrier concentration and the difficulty in effectively adsorbing and activating CO 2 . This work first successfully synthesized g-C 3 N 4 nanohollow spheres using a hard template method and ultrathin Bi 2 MoO 6 nanosheets via a solvothermal method, and then fabricated an S-scheme heterojunction by electrostatic assembly. Crucially, during the photothermal catalytic reaction, the dynamic formation of photogenerated oxygen vacancies and their induced dipole-limited domain field (DLDF) structure were identified as the key mechanism driving the exceptionally high activity in CO 2 photoreduction. In situ electron paramagnetic resonance spectroscopy directly demonstrated the dynamic cycling of the photogenerated oxygen vacancies during the catalytic reaction. Density functional theory calculations and carrier dynamics characterization analysis confirmed the synergistic effect of the DLDF in optimizing carrier kinetics and enhancing CO 2 adsorption. Ultimately, a high CO production rate of 48.69 μmol·g −1 ·h −1 was achieved. This work integrates heterojunction construction and morphology control strategies to achieve synergistic enhancement of photothermal catalytic performance and elucidates the intrinsic mechanism for the activity improvement. It provides an effective way for developing efficient heterojunctions for photothermal catalytic CO 2 reduction.
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高影响因子
PLANT BIOTECHNOLOGY JOURNAL
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2026
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IF 10.5
Liyong Sun,Yusen Wang,Minglu Yin,Lina Xu,Yao Chen,Shuxian Li,Zengfang Yin
Amaranthus palmeri is one of the most troublesome invasive agricultural weeds worldwide, exhibiting super invasiveness and high resistance to conventional management strategies. Artificial microRNA-mediated silencing technology, coupled with a nanoparticle-mediated delivery system, represents an attractive approach for fertility control in A. palmeri . In this study, we first characterised the biological function of ApMIR319 via ectopic overexpression in Arabidopsis , identifying it as a crucial candidate molecular target for fertility regulation in A. palmeri . Subsequently, we prepared layered double hydroxide (LDH) nanosheets using the co-precipitation-hydrothermal method. Employing the LDH nanosheets as nanocarriers, we implemented nearly complete encapsulation of the ApmiR319 mimic at a mass ratio of 1:100. The LDH-ApmiR319 mimic complex exhibited stable loading capacity in neutral and alkaline solutions. Furthermore, the LDH-ApmiR319 mimic complex demonstrated robust adhesion to leaf surfaces and enhanced resistance to enzymatic degradation. Spraying treatments with the LDH-ApmiR319 mimic complex significantly elevated ApmiR319 expression levels in male florets, while concurrently down-regulating its target genes ( ApTCP4 , ApTCP10 and ApMYB33 ), thereby inhibiting pollen development in A. palmeri . In conclusion, this study successfully established an LDH nanosheet-mediated delivery system of ApmiR319 mimic for male fertility control in A. palmeri . It represents a novel strategy and direction for achieving sustainable management of this weed.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaoyi Hu,S. Ravi P. Silva,Peng Zhang,Kangli Liu,Shijie Zhang,Guosheng Shao
A main huddle against the practical application of lithium-sulfur battery lies in serious safety concerns due to liquid organic electrolyte, shuttling of polysulfides and formation of lithium dendrites. Herein, we have devised an asymmetric and structurally stable gel electrolyte system to enable high ionic conductivity, flame-retardancy, and effective blockage of shuttling. Such a multi-functional gel electrolyte utilizes an electro-spun network of interwoven nano-fibers of poly vinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) as structural scaffolds, with SiO 2 -polyvinyl alcohol (SiO 2 @PVA) suspension being loaded at one surface by blade coating. Such asymmetrically coated PVDF-HFP membranes are highly wettable that is essential to thorough gelling, with its well-connected porous channels to enable outstanding ionic conductivity above the limit by conventional Celgard separator, to accommodate huge volumetric changes over redox reactions, to shield polysulfides and fend off lithium dendrites. Ultimately, application of the gel electrolyte to a model Li-S cell with cathode containing 90% S delivered high initial capacity of 1439 mA h g −1 at 0.1C and a remarkable cycling stability over 300 cycles at 1C. The current gel electrolyte is expected to provide a valuable means for developing safe low-cost and durable Li–S batteries of practical importance.
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高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2022
·
IF 6.437
Zhong-Qiu Liu,Guo-Qiang Zhang,Xin Huang,Yuan-Yuan Yu,Yu-Jing Liu,Anguo Ying
The precise synthesis of multifunctional poly(ionic liquid)s (MFPILs) featuring basic sites, mesoporous channels, and hydrophobicity continues to be a substantial challenge. Moreover, the directional conversion of lignite to monocyclic arenes (MCAs) is highly attractive but particularly challenging on account of its geometrical complexity and chemical inertness. The efficiency of lignite directional conversion to MCAs over solid bases is substantially decreased by the presence of water molecules leading to the deactivation and leaching of basic sites. Herein, the novel solid bases, i.e. , MFPILs with dibasic sites, unique hydrophobicity , and abundant mesoporous channels, were successfully fabricated by a radical multicomponent cross-linked copolymerization for the first time. Even more excitedly, the resulting MFPILs were demonstrated to be very efficient for directional catalytic hydroconversion of extraction residue from Dahuangshan lignite (DL ER ) into MCAs with 32.3 wt% yield, which is by far the highest value reported for lignite-derived MCAs by solid bases under similar conditions. The synergistic catalysis, i.e. , hydrophobic microenvironment, mesoporous confinement, and synergistic effect of dibasic sites, for active hydrogen transfer of DL ER conversion into MCAs over MFPILs is confirmed by characterization methods. The work not merely sheds substantial light on developing the novel solid bases, but also exhibits a potentially powerful catalyzing strategy to synthesize MCAs.
研究领域:
催化化学
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高分子化学
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能源材料
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可持续化学
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有机转化
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高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2026
·
IF 3.3
Chen Ziang,Liu Yanbing,Zhou Ting,Shi Yu,Tao Yuanyuan,Jiang Wei,Gu Binxian,Hu Qingsong
Developing green and efficient photocatalysts is crucial in addressing the energy crisis and environmental remediation. In this study, we synthesized novel S, N co-doped graphene quantum dots (S, N-GQDs) anchored PbBiO 2 I nanospheres employing a reactive ionic liquid-assisted facile one-step solvothermal approach. We prepared a variety of S, N-GQDs/PbBiO 2 I nanocomposite with different loading amounts of S, N-GQDs and investigated their photocatalytic performance. Among these, S, N-GQDs/PbBiO 2 I-2 exhibits the highest degradation efficiency for antibiotic removal. The incorporation of S, N-GQDs significantly broadens the visible-light absorption range and accelerates the migration of photoinduced carriers, thereby enhancing photocatalytic activities. Various characterization techniques and experimental analyses were employed to explore the charge carrier transfer pathway in this system. Notably, the developed photocatalyst demonstrates two exceptional advantages: a broad-spectral response capability and environmentally-friendly properties, which are of significant relevance for practical applications. This study provides insights for the rational design of high-performance, wide-spectral-light-driven, and environmentally-friendly photocatalysts in the field of environmental remediation.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Guoxu Ni,Runye Hu,Qikai Wang,Wenwen Shi,Qiuhong Cui,Jun Yan
HF-free synthesis of FeSe₂@S-Ti₂C via Lewis acidic molten-salt etching. • Simultaneous Ti₂C termination, etching, and FeSe₂ anchoring in one step. • Strong interfacial coupling endows Ti₂C/FeSe₂ with metallic conductivity. • Ti₂C/FeSe₂ delivers high capacity, long life, and high rate for SIBs. • Synergistic Na-storage mechanism of FeSe₂@S-Ti₂C revealed by DFT and in situ EIS/DRT analyses. The development of high-performance anode materials is critical for advancing sodium-ion batteries (SIBs) toward practical applications. Herein, we report a novel FeSe 2 @S-Ti 2 C heterostructure synthesized via a safe and straightforward Lewis acidic molten salt etching strategy followed by in-situ selenization. This approach enables simultaneous etching of Ti 2 AlC MAX phase, surface termination with sulfur-containing groups, and uniform anchoring of FeSe 2 nanoparticles within the Ti 2 C MXene matrix, eliminating the need for hazardous HF or post-synthesis metal removal. The resulting heterostructure integrates multiple advantageous features: The highly conductive Ti₂C MXene framework accelerates the transport of Na + , while its structural robustness effectively accommodates the volume expansion caused by Na + deintercalation. S-containing surface terminations provide additional active sites that enhance Na + adsorption. Ultimately, the FeSe₂@S-Ti₂C anode demonstrates exceptional sodium-storage performance, characterized by a high reversible capacity of 397.6 mAh g −1 after 350 cycles at 1 A g −1 , superior rate capability (227.8 mAh g −1 at 5 A g −1 ), as well as robust full-cell performance with an initial Coulombic efficiency of 91.2% and a reversible capacity of 493.6 mAh g −1 following 500 cycles at 1 A g −1 . Density functional theory calculations further elucidate the underlying mechanism, revealing metallic conductivity, reduced Na + diffusion barrier (0.30 eV), and enhanced Na adsorption energy (−2.43 eV) in the heterostructure. This work presents a versatile and scalable strategy for constructing advanced MXene-based heterostructures, offering promising avenues for high-performance SIB anodes. Description : Lewis acidic molten salt etching enables one-pot synthesis of FeSe₂@S–Ti₂C heterostructures; the conductive MXene framework with S-terminations and interfacial coupling deliver fast Na + diffusion and robust sodium storage. Download: Download high-res image (203KB) Download: Download full-size image
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高影响因子
MATERIALS AND STRUCTURES
·
2026
·Vol. 59
·期 6
·303
·
IF 3.9
Yin Jianhao,Liao Jiaxin,Kong Xiangming
The composition, moisture distribution, and microstructural evolutions of calcium-silicate-hydrate (C–S–H) in synthetic C–S–H (SynCSH) and hardened tricalcium silicate paste (HC 3 SP) during the first drying-resaturation (D-R) cycle were systematically compared using low-field 1 H-nuclear magnetic resonance (LF-NMR) and thermogravimetric analysis (TGA). The stoichiometric formulas of C–S–H in SynCSH and HC 3 SP were determined as C 0.9 SH 3.65 and C 2.0 SH 4.53 , respectively. Water contents of C–S–H quantified by TGA and LF-NMR exhibit good linear relationship. Three types of water, interlayer water, gel water and capillary water in C–S–H were identified by LF-NMR. Notable observations included the abnormal increase of interlayer water during the drying process and subsequent decrease during resaturation, along with irreversible decreases in capillary water and increases in gel water after D-R cycle, which were attributed to the rearrangement of C–S–H layered structures. SynCSH exhibited collapse of capillary pore structures following the D-R cycle, resulting in irreversible reductions in total water content. This finding confirms the validity of synthetic C–S–H as a model material for cementitious C–S–H research while highlighting its limitations in predicting the microstructural stability of real cement pastes under moisture cycling.
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