ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
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IF 4.1
Zhang Bing Ying,Liu A. Fang,Zhou Cong,Kang Tian Tai,Xu Yu Fang,Guo Yao Hao,Wang Li,Wan Fu
An environmentally friendly ultrasound-assisted liquid-liquid microextraction method based on the in situ formation of a hydrophobic deep eutectic solvent (DES) was developed for monitoring seven polychlorinated biphenyl (PCB) congeners as residues in and migrants from food contact paper. The extraction phase was generated in situ from tetrapropylammonium chloride and 1-octanol (molar ratio 1:3), followed by analyte quantification using high-performance liquid chromatography with diode-array detection (HPLC-DAD). Optimization of the parameters affecting extraction efficiency was performed. Under optimal conditions, the method exhibited good linearity and sensitivity. For residual PCB analysis, the limit of quantification (LOQ) was 0.093–0.11 mg/kg; relative recoveries ranged between 89 and 108%; and relative standard deviations were 4–8%. For migration studies, the LOQ was in the range of 0.47–0.53 μg/L, relative recoveries ranged between 90 and 110%, and relative standard deviations were under 9%. The developed method’s intra-day and inter-day relative standard deviations were 1.9–2.7% and 2.4–3.6%, respectively. The developed approach offers high extraction efficiency, operational simplicity, and environmental compatibility, demonstrating considerable promise for routine monitoring of PCBs in food contact paper materials. Graphical abstract
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Journal of Physical Chemistry C
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2026
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IF 3.4
Hu Jinying,Zhang Senlin,Huang Zhaohui,Zhan Ruoning,Fang Bin,Xie Xiuqiang,Weng Bo,Zhang Nan
The sensitization of semiconductors with organic photosensitizers
represents an effective strategy for broadening their light absorption
range, and increasing attention has been paid to the development of
organic photosensitizers with a response to near-infrared (NIR) light.
Notably, the influence of the photothermal effect induced by NIR on
the performance of sensitized semiconductor systems, especially on
the generation and separation of charge carriers, remains unclear.
Herein, we construct a bis-tetraminobenzoquinone (TAQ)-sensitized
TiO 2 system via a facile in situ solvothermal method to
enable the light absorption of the composite up to ca. 1600 nm. Under
visible–NIR light irradiation, the optimal TiO 2 /TAQ
demonstrates a hydrogen evolution activity of 11.25 μmol g –1 h –1 , confirming that the photogenerated
electrons produced by TAQ can transfer to TiO 2 for proton
reduction. Notably, upon excluding NIR light, the TiO 2 /TAQ
composite exhibits enhanced hydrogen evolution performance (up to
26.44 μmol g –1 h –1 ). Thermal
images reveal that TAQ generates a significant photothermal effect
under visible–NIR light. The temperature-controlled experiments
and characterizations suggest that while elevated temperature helps
to suppress charge carrier recombination and reduce charge-transfer
resistance in the TiO 2 /TAQ-sensitized system, it simultaneously
hinders the generation of charge carriers in TAQ. Such double-edged
effects ultimately diminish the photocatalytic activity of TiO 2 /TAQ under visible–NIR light as compared to visible
light irradiation. This work provides new insights into the generation
and transfer of charge carriers from the photosensitizer under NIR
light and offers guidance for the future development of highly efficient
organic–inorganic sensitization systems.
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Small
·
2026
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IF 11.8
Zhiwei Liu,Guoheng Xu,Binbo Li,Yaohui Gu,Yuhui Hu,Fangfang Xu,Bo Wang,Zhengguo Hu,Jinglai Duan
Nanofluidic ionic memristors have garnered considerable attention for their operational principles that emulate biological synapses, positioning them as promising candidates for neuromorphic systems. However, simultaneously achieving non-volatility and function-tunability in ionic memristors remains a significant challenge. Here, we demonstrate the successful emulation of key neuromorphic functions, including neural activation and synaptic plasticity, using a nanofluidic memristor integrated with sub-nanometer (sub-nm) channels within ion-track membranes. Unlike unipolar resistive switching, which is predominantly driven by concentration polarization in symmetric ion solution system, we demonstrate a reversible transport switching mechanism, triggered by multivalent ions (e.g., Ca 2+ and La 3+ ), that toggles between fast and slow modes. This mechanism induces a transition to bipolar resistive switching, significantly enhancing the device's non-volatility while preserving its reversibility. Furthermore, the memristive response can be effectively tuned by varying the doping concentration and external voltage. These findings provide new insights and design strategies for developing tunable bio-synapse emulation platforms operating in ionic aqueous media.
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MACROMOLECULES
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2026
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IF 5.2
Mingsheng Liu,Lian He,Shuanjin Wang,Dongmei Han,Sheng Huang,Min Xiao,Yuezhong Meng
Polythiocarbonates (PTCs) represent a class of polymers derived from polycarbonates. While numerous synthetic methodologies have been reported, their practical applications remain unexplored. This study employs a one-pot bulk polymerization approach using propylene oxide (PO) and carbon disulfide (CS2) to synthesize polythiocarbonates, systematically investigating the effects of reaction temperature and duration on polymer properties. Results demonstrate that optimized reaction conditions fail to suppress O/S exchange, inevitably yielding polymers containing diverse thiocarbonate groups with varying stabilities. Consequently, we established the structural thermal stability hierarchy of thiocarbonate linkages: S(C═O)O > S(C═O)S > O(C═S)O > S(C═S)S > S(C═S)O. Density functional theory (DFT) calculations of bond dissociation energies (BDEs) corroborate this experimentally determined sequence. Our findings identify inherent structural instability as the fundamental barrier to polythiocarbonate applications, providing critical design principles for developing functionally stable PTCs.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Chenhua Shu,Jun Yang,Jiayi Zhang,Helin Fan,Xingyu Dai,Dan Luo,Shuo Mi,Tonghua Sun
To solve the problem of the deep eutectic solvents synthesized with small volume hydrogen bond acceptors and hydrogen bond donors entering the cavity of pore generator and occupying their pore structure, supramolecular deep eutectic solvent (SDES) was firstly introduced to construct porous deep eutectic solvent (PDES). Thereby, a PDES was synthesized by using ZIF − 8 encapsulating peroxophosphotungstate (PPT) as pore generator and SDES composed of methyl-β-cyclodextrin (M − β − CD) and levulinic acid (LA) as steric hindrance solvents. The characterization results indicated that PPT was encapsulated successfully within ZIF − 8 to prepare [PPT@ZIF − 8]. [PPT@ZIF − 8] and [M − β − CD/LA] remain structure stable after forming PDES and [M − β − CD/LA] do not fill the cavity of [PPT@ZIF − 8]. The PDES [PPT@ZIF − 8][M − β − CD/LA] was applied for oil desulfurization and the desulfurization rate of dibenzothiophene in model oils could reach 100% within 2.5 h using H 2 O 2 as oxidant. The desulfurization by [PPT@ZIF − 8][M − β − CD/LA] combined the extractive desulfurization with [M − β − CD/LA] as extractant and the oxidative desulfurization with [PPT@ZIF − 8] as catalyst. Furthermore, [PPT@ZIF − 8][M − β − CD/LA] has excellent regeneration performance. This work will provide a new route to construct PDESs and will promote the industrial application of porous liquids.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2026
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IF 2.1
Minjie Gao,Congfei Zhu,Yasen Dai,Bingru Wang,Shuhang Ren,Weize Wu
Deep eutectic solvents (DESs) show great potential in the field of CO2 capture; however, the lack of systematic physicochemical property data remains a bottleneck constraining their rational design and industrial application. This study prepared six representative DESs and systematically characterized their key fundamental properties as absorbents: density, viscosity, thermal stability, and specific heat capacity. The results indicate that the chemical structure of the hydrogen bond acceptor has a decisive influence on the properties of the DESs. The viscosity and density of all DESs decreased significantly with increasing temperature. Thermogravimetric analysis revealed their varying thermal stabilities, with the onset decomposition temperature ranging from 366.52 K (menthol–ethylene glycol) to 415.17 K (choline chloride–ethylene glycol). The measurement of specific heat capacity data provides a key basis for evaluating solvent regeneration energy consumption. This study fills the gap in systematic property data of various DESs. Comprehensive analysis indicates that the choline chloride-ethylene glycol system achieves the best balance among viscosity, thermal stability, and specific heat capacity, making it a highly promising candidate based on its physicochemical property profile for CO2 capture among the studied systems. This work provides solid data support and theoretical guidance for the screening, design, and energy optimization of DESs in CO2 capture processes.
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Environmental Progress & Sustainable Energy
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2026
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IF 2.6
Zhengxiong Jiang,Zhitao Han
Electrochemical-mediated amine regeneration (EMAR) is a promising carbon capture technology. It uses an electrochemical process to regenerate amine solutions, replacing conventional thermal methods. This substitution significantly reduces the energy consumption and cost of amine-based CO 2 capture. However, challenges such as slow reaction kinetics and relatively high energy requirements have hindered its commercial adoption. In this work, these limitations are overcome for the first time by introducing additives into the EMAR electrolyte. The amine regeneration performance of mixed solutions incorporating five different additives including β-Cyclodextrin (β-CD), Trisodium phosphate (TSP), Glycine (Gly), 3-Mercapto-1-propanesulfonic acid (MPS), Tetrabutylammonium chloride (TBAC) was systematically evaluated, and the mechanistic role of these additives in the electrochemical regeneration process was thoroughly investigated. Results indicate that TBAC serves as an effective additive that enhances the overall performance of monoethanolamine (MEA) solution within the EMAR system. In terms of CO 2 absorption, the MEA solution with TBAC outperformed those with other additives, achieving higher CO 2 loading capacity and faster absorption kinetics. Furthermore, electrochemical analyses revealed that the reduction of Cu 2+ is facilitated in the TBAC-modified MEA solution compared to other additive systems, while the anodic oxidation of metallic copper to Cu 2+ is also enhanced. Notably, the TBAC-modified MEA solution exhibited significantly improved CO 2 desorption performance. The measured desorption energy consumption for the TBAC system was lower, coupled with higher Faradaic efficiency. Specifically, at a current density of 100 A/m 2 , the desorption energy consumption was determined to be 19.48 kJ/mol CO 2 , demonstrating strong potential for industrial implementation of the EMAR process.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Yanling Hao,Fangyu Wang,Qiang Wang,Qilong Xie,Yan Liu,Yanbo Wu,Litao Jia,Yong Li,Wenting Liang
To address the technical challenges in detecting edible oil adulteration, this study developed a series of green deep eutectic solvents (DESs) by combining tetrabutylammonium chloride (TBAC), tetrabutylammonium bromide (TBAB), and choline chloride (ChCl) with acetic acid (AcOH). These DESs were innovatively coupled with liquid-liquid microextraction (LLME) technology to establish a rapid and sustainable method for identifying adulterated edible oils. Critical parameters were methodically evaluated, including DES composition, solvent volume, and extraction time. The results indicated that TBAC-AcOH (molar ratio 1:2) DES exhibited the best extraction ability, the optimal extractant dosage was 120 μL and the extraction time was 3 min. Under the optimized experimental conditions, the proposed method showed a good linearity (R 2 ≥ 0.998), the spiked recoveries in real oil samples ranged from 85.1% to 98.2%, with relative standard deviation (RSD) ≤ 3.5%. The constitution of the DES was verified by nuclear magnetic resonance ( 1 H NMR), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and differential scanning calorimetry (DSC). Mechanistic investigations via theoretical calculations revealed that DESs primarily extract nonivamide and dihydrocapsaicin through hydrogen bonding interactions. This method provides a convenient, novel and green strategy for the identification of capsaicinoids in edible oil adulteration or illegal addition.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2026
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IF 6.7
Xiaoxiao Zhou,Miaomiao Feng,Dandan Luo,Lan Yi,Jialing Chen,Pengzhi Bei,Hao Luo,Xiaoqin Wu,Wen-Ying Li
Unlocking the cross-linked network structure of low-rank coal is pivotal for its high-value utilization, yet this process is severely constrained by mass transfer resistance. To address this challenge, a “carrier-permeation” synergistic strategy is proposed herein, which integrates high-permeability dimethylformamide (DMF) with high-activity deep eutectic solvents (DES). Molecular dynamics simulations indicate that DMF may function as a molecular carrier, promoting the deep penetration of viscous DES components into the coal matrix. Experimentally, this synergistic effect induces substantial physical restructuring: particle size is reduced by more than 82% (to 22.57 μm) and the aromatic interlayer spacing ( d 002 ) is increased to 0.355 nm via effective disruption of stacking interactions. Chemically, the system achieves an exceptional desulfurization rate of 90.81%, along with the selective cleavage of ether bridges and long aliphatic chains (CH 2 /CH 3 ratio minimized to 2.71). Consequently, pyrolysis pathways are substantially redirected by this structural remodeling, shifting product distribution from low-value alkanes to high-value olefins (50.47%) and esters (24.09%). A molecular-scale deconstruction system is elucidated, offering a novel approach for clean and value-added utilization of lignite.
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Laser & Photonics Reviews
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2026
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IF 9.7
Jialu Liu,Haoran Zhang,Dingshuo Zhang,Qiaopeng Cui,Kehao Wang,Chao Fan,Haiping He,Zhizhen Ye,Xingliang Dai
White light-emitting diodes are regarded as a substitute for traditional incandescent lights, becoming promising solid-state light sources. However, the insufficiency of rare earth elements, environmental problems caused by element mining, and an inadequate color rendering index for high-saturation colors restrict long-term application. Herein, a kind of sunlike full-spectrum white light-emitting diodes is successfully prepared, consisting of two complementary-color low-toxicity copper-based materials, which demonstrates an excellent color rendering index. Two types of eco-friendly hybrid copper halide ionic crystals with broadband emission are synthesized via cooling crystallization, exhibiting near unity photoluminescence quantum yields. Different thermal-assisted self-trapped exciton emission mechanisms result in distinctive temperature-dependent photoluminescence, both of which possess robust resistance against thermal quenching and good stability under UV laser irradiation. The white light-emitting diode devices were fabricated with an appropriate ratio of two kinds of phosphors, which show splendid rendering index, R a of 93, and R 9 of 86 simultaneously, and operational half-lifetime of 140 h under a continuous 250 mA current mode. The results provide an approach for achieving healthy lighting using environmentally friendly materials.
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BIOMACROMOLECULES
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2026
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IF 5.9
Dongfang Zhao,Tianqi Li,Lihang Jiang,Zheng Li,Zhibo Li
The global accumulation of plastic waste underscores the urgent need for sustainable polymers that combine commodity feedstocks, controlled synthesis, and closed-loop recyclability. Substituted six-membered lactones represent promising poly(ether-alt-ester) precursors owing to their tunable properties and inherent degradability, yet their structural diversity and recycling pathways remain limited. Here, we report a catalyst-modulated route to regioselectively synthesize methyl-substituted six-membered lactones from commodity methyl glycolate (MG) and propylene oxide (PO), which are subsequently polymerized into poly(ether-alt-ester)s capable of efficient chemical depolymerization. The choice of catalyst dictates both monomer structures and polymer microstructure, while thermal and stereochemical analyses reveal how subtle substitution patterns govern amorphous or semicrystalline behavior of the resulting polymers. Chemical depolymerization regenerates either mixed or pure lactones, demonstrating true closed-loop recycling. By integrating catalyst design, control over monomer regioisomer distribution, polymer microstructure and reversible polymerization, this work establishes a versatile platform for constructing recyclable poly(ether-alt-ester) systems, advancing circularity within polymer materials.
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Journal of Water Process Engineering
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2026
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IF 6.6
Zhigang Ning,Mengling Fang,Baitong Zhang,Muhammad Junaid,Jiao Tang,Qinggang Huang,Xuanlin Li,Xin Huang,Haizhou Xue,Jinglai Duan,Jie Liu,Huijun Yao
A synergistic membrane–solution strategy combining enlarged sub-nanoporous PI membrane with EDTA complexation achieves high Li + flux (73 mmol h -1 m -2 ) and exceptional Li + /Mg 2+ selectivity (351). • The EDTA-induced size and charge transformation of Mg 2+ enables effective electrostatic and steric rejection by negatively charged sub-nanopores, breaking the permeability–selectivity trade-off. • The system demonstrates robust separation performance (selectivity > 284) even at Mg 2+ /Li + ratio up to 60, with EDTA 4- being efficiently regenerated and reused over multiple cycles. Efficient extraction of lithium-ion from salt-lake brine remains a significant challenge, primarily due to the similar physicochemical properties of Li + and Mg 2+ , and the inherent trade-off between permeability and selectivity in conventional membrane processes. Herein, we propose a synergistic membrane–solution strategy that integrates an enlarged sub-nanoporous polyimide membrane (ESN-PI) with ethylenediaminetetraacetate (EDTA 4- ) complexation to enhance the Li + flux and Li + /Mg 2+ selectivity simultaneously. The ESN-PI membrane, fabricated via heavy-ion irradiation and controlled alkaline etching, provides enlarged transport channels that significantly improve Li + permeation. Meanwhile, EDTA 4- selectively chelates Mg 2+ to form a bulky, negatively charged [EDTA-Mg] 2- complex, which is electrostatically repelled and sterically hindered by the negatively charged sub-nanopores, thereby greatly suppressing Mg 2+ transmembrane transport. The coupled system delivers a high Li + flux of up to 73 mmol h -1 m -2 and an exceptional Li + /Mg 2+ selectivity of 351. Notably, the separation performance remains robust (selectivity > 300) even at a high feed Mg 2+ /Li + ratio of 60, and EDTA 4- can be efficiently regenerated and reused over multiple cycles. This research utilized heavy ion irradiation technology to prepare a more economical cation exchange membrane. By coupling the membrane with the EDTA complexation strategy, it was able to resolve the contradiction between permeability and selectivity in the ion separation process based on the membrane, providing a promising strategy for extracting lithium from brines with high magnesium ion content. Polymer membranes are widely used for the extraction of lithium resources from salt-lake. The enlarged sub-nanoporous polyimide membranes (ESN-PI) combined with EDTA 4- to achieve efficient Li + /Mg 2+ separation. EDTA 4- can combine with Mg 2+ to form a bulky, negatively charged [EDTA-Mg] 2- complex. The lithium flux and Li + /Mg 2+ selectivity reaches 0.073 mol·h -1 ·m -2 and 351, respectively. This work demonstrates a viable and economically feasible route to decouple the permeability–selectivity trade-off in membrane-based ion separation, offering a promising strategy for lithium extraction from high-Mg 2+ brines. Download: Download high-res image (86KB) Download: Download full-size image
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