COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yiting Han,Yueyang Xu,Liming Kong,Guojun Shi,Yongping Zeng
Metal-organic frameworks (MOFs) have garnered significant attention in adsorption desulfurization due to their high density of adsorption sites and permanent porosity. However, despite the abundant adsorption sites in Zr-based MOF-808, its relatively large pore channels and volumes may limit the adsorption efficiency for smaller molecules such as thiophene. Incorporating room-temperature ionic liquids (rILs) into MOF structures offers a promising strategy to address a key limitation of rILs-their high viscosity at ambient conditions, which often restricts mass transfer rates during liquid-liquid extraction. In this study, an IL-modified MOF-808 was synthesized to assess its performance in desulfurization. Characterization results confirmed that the rILs successfully infiltrated the MOF-808 pores without changing its framework integrity. Adsorption properties for thiophene in ILs/MOF-808 composites were investigated through Grand Canonical Monte Carlo (GCMC) simulations alongside experimental adsorption measurements conducted at 298 K. Further Monte Carlo (MC) simulations demonstrated that the presence of ILs enhanced the affinity for thiophene and increased the number of accessible adsorption sites within the composite. The adsorption capacity of ILs/MOF-808–20 remained stable over four adsorption-regeneration cycles using n-octane as the solvent, providing a potentially feasible solution for deep desulfurization.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Min Yin,Lihua Chen,Yanyu He,Shaopeng Chen,Wenyu Zheng,Qi-Meige Hasi
Solar-driven interfacial evaporation holds significant potential for treating oily wastewater. Traditional evaporators may become clogged due to residues or contamination caused by the release of volatile organic compounds (VOCs). We have developed a novel evaporator that combines oil-water interfacial evaporation with photocatalytic removal of VOCs. In experiments using simulated seawater, oily wastewater, phenol (PNP), and p-nitrophenol (PhOH)-contaminated water, we evaluated water evaporation efficiency and VOCs degradation. The temperature gradient on the aerogel surface, combined with interfacial evaporation and photocatalysis, enhanced evaporation efficiency. The oil-modified surface prevents oil blockage, while the photocatalytic coating effectively removes VOCs and enhances thermal regulation. Under 1 kW m −2 solar irradiance, the O-PPy/PTh-PI/MXene aerogel treated 10% oil-contaminated wastewater with an evaporation rate of 1.37 kg m −2 h −1 and an evaporation efficiency of 89.75%. Interface evaporation desalination treatment of source water contaminated with PNP and PhOH achieved a TOC removal rate exceeding 98%. An expanded aerogel evaporator array produced approximately 9.21 kg/(m 2 ·d) of pure water under actual sunlight. This successful demonstration highlights the evaporator's efficient evaporation potential at the interface for treating oily wastewater, showcasing its broad application prospects.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
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IF 4.6
Yuhang Zhang,Wencai Huang,Xi Chen,Zirui Ren,Yuqing Song,Xiandong He,Yang Xia,Xiaoxiao Lu
NCM811 cathode is surface modified by PTh and CNTs. • PTh/CNTs co-modification boosts electrochemistry and thermal stability. • The co-modified sample achieves 86.8% capacity retention after 500 cycles at 1C. • Conjugated electron-rich PTh captures ROS; CNTs build conductive network. The practical use of Ni-rich cathodes is limited by interfacial instability from reactive oxygen species, poor conductivity, and structural degradation. Polythiophene (PTh) is capable of scavenging reactive oxygen species (ROS); however, its electrical conductivity is insufficient to meet the demands of high-rate applications. To enhance the high-rate performance, a hybrid modification layer composed of PTh and carbon nanotubes (CNTs) has been introduced onto LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) via a straightforward wet-chemical method. Morphological and surface investigations confirm that PTh uniformly coats the cathode surface, while CNTs are entangled on the surface of the secondary particles to form a robust conductive network. Electrochemical results demonstrate that PTh effectively shields the cathode from electrolyte degradation, suppresses lattice contraction after prolonged cycling, and scavenges ROS, whereas CNTs significantly enhance electrical conductivity. The optimized CP-NCM811 cathode delivers an initial discharge capacity of 184.5 mAh g −1 at 1C and retains 86.8% of its capacity after 500 cycles. Furthermore, it displays an outstanding rate performance of 161.6 mAh g −1 at 10C. The enhanced electrochemical and thermal stability arises from the synergistic effects of ROS scavenging by PTh, suppression of irreversible lattice contraction, and reduction of charge-transfer impedance facilitated by the CNT conductive network. Differential scanning calorimetry further reveals that the modified cathode exhibits a delayed exothermic onset temperature, indicating superior thermal stability. This study offers a novel and efficient strategy for enhancing the electrochemical and thermal performances of high-capacity cathodes through the synergistic co-modification of PTh and CNTs. Download: Download high-res image (186KB) Download: Download full-size image
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EUROPEAN POLYMER JOURNAL
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2026
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IF 6.8
Jie Song,Youming Chang,Yu Zhang,Lijun Chen,Lei Li,Yidan Li
Aiming at the problems of limited conductivity and poor stability of traditional ionic hydrogels, this study prepared polythiophene composite (PTh@Fe-BDA) as a conductive filler, and then designed poly(vinyl alcohol) (PVA) network, sodium poly(acrylic acid) (PAANa), and poly([2-(methacryloyloxy)ethyl]trimethylammonium chloride) (PDMC) polyelectrolyte network to construct dual network (DN) gels by introducing conductive fillers into the polymer matrix. When PTh@Fe-BDA was added in the amount of 0.9 g, the tensile strength of the conductive hydrogel was 0.825 MPa, the toughness was 0.0039 MJ/m 3 , and the electrical conductivity was 1155.556 mS/m. The hydrogel exhibited good adhesion and recovery after cycling tests. PVA/PAANa/PDMC/PTh@Fe-BDA conductive hydrogel strain sensing can respond to mechanical stimuli and generate accurate, stable and recoverable electrical signals, and can be used as a flexible wearable device for multiple monitoring strains and subtle movements in different body parts, and can also be used as a capacitive pen to fluently write and draw on the screen of a cell phone or tablet computer. This new multifunctional conductive hydrogel has a wide range of application prospects in electronic skin, motion monitoring and human–computer interaction.
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Analytical Methods
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2026
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IF 3
Jiajia Wang,Chun Kan,Demeng Qian,Mingping Gao,Ayang Zhou,Bao-Kang Jin
CA-125, as a tumor marker for ovarian cancer, plays an importance role for rapid and sensitive detection in early diagnosis. Herein, a label-free electrochemical immunosensor based on COF/PTh/MB nanocomposite was constructed for the detection of CA-125.The TAPB-DMTP-COF material, with its large surface area and stable porous framework, was used as the substrate. However, its poor conductivity hindered electron transfer. To address this, conductive polymer PTh was combined with the COF to enhance the composite's conductivity. Meanwhile, MB was used as a signal probe, and differential pulse voltammetry (DPV) was adopted to measure the electrochemical signal. Under optimized experimental conditions, the proposed immunosensor exhibited excellent performance for the CA-125 detection, with a detection range of 1 mU/mL-10000 mU/mL, and a low detection limit of 0.34 mU/mL (S/N = 3), providing a potential platform for clinical application.
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Mengying Lin,Hanyue Lou,Zhaoyang Qi,Jie Chen,Changshen Ye,Ting Qiu
The development of highly active catalysts is crucial for oxidative desulfurization (ODS) to meet the growing demand for sulfur-free fuels. In this study, a defect-rich composite catalyst UiO-DAlaPW was successfully synthesized via mechanochemical grinding, wherein phosphotungstic acid (HPW) was encapsulated within a defect-engineered UiO-66 framework, utilizing D-alanine (DAla) as a bridging molecule. The synthesized catalyst, UiO-DAlaPW, significantly enhances the utilization efficiency of hydrogen peroxide (H 2 O 2 ). In the model oil ODS system, the material exhibited exceptional catalytic performance: achieving deep desulfurization at room temperature within merely 5 min under conditions of extremely low acetonitrile cosolvent usage and a low oxidant/sulfur (O/S) ratio, accompanied by remarkably high H 2 O 2 utilization efficiency. Moreover, the catalyst maintained high desulfurization efficiency even in the absence of acetonitrile. Characterization by XRD, FT-IR, TGA, and XPS confirmed the successful encapsulation of HPW within the UiO-66 framework. Mechanistic studies revealed a significant synergistic effect between UiO-66 and HPW. The effective cooperation of the two active sites, namely Zr in UiO-66 and PW, significantly enhances the catalytic performance, contributing to superior oxidative desulfurization activity.
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高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2022
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IF 6.76
Yachun Ren,Yueyang Xu,Erjian Huang,Peng Zhang,Yongping Zeng
Adsorption desulfurization is a very effective method to remove thiophenic compounds from fuels. The metal–organic frameworks (MOFs) have emerged as a new type of desulfurization adsorbents because of their porous nature and large specific surface area. In this study, Cu 2+ was covalently introduced into the UiO-66 framework at the defective sites by the solvothermal method. Further, the π-complexation adsorbent UiO-66-Cu(I) containing Cu + for adsorption desulfurization was synthesized by the methanol vapor-induced reduction. The adsorption performance was tested for the removal of thiophene from the model fuels with different sulfur concentrations. In comparison with the pristine UiO-66, the adsorbent UiO-66-Cu(I) has a higher adsorption capacity for thiophene, reaching 14.8 mg S/g. The competitive adsorption results indicated that UiO-66-Cu(I) has good selectivity for thiophene in the presence of aromatic compounds. From the recycling experiments, this adsorption still has the 86 % of the initial capacity after four cycles, indicating that the adsorbent has a good recycling performance.
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Journal of Environmental Chemical Engineering
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2022
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IF 7.968
Yan Yin,Yueyang Xu,Konglu Guo,Peng Zhang,Yongping Zeng
Adsorptive desulfurization is one of the alternative technologies for the effective removal of sulfides from fuels. Functionalization of metal-organic frameworks (MOFs) with Cu + is extremely desirable for adsorption separation via π-complexation interaction with adsorbed molecules. Here we report that Cu + cation is significant and highly effective for adsorption desulfurization in a new type of Cu + - modified UiO-66(Zr). First, Cu 2+ was introduced via ion-exchange with H + of UiO-66-SO 3 H. Then, Cu + cation was obtained from the reduction of Cu 2+ by using vapor-induced reduction, in which vapors of reducing agents diffuse into the pores of MOFs at a lower temperature. The resulted UiO-66-SO 3 Cu(I)− 0.15 has a better adsorption capacity for thiophene compared to pure UiO-66. In the presence of toluene, the UiO-66-SO 3 Cu(I)− 0.15 also exhibits high adsorption capacity for thiophene. After recycling four times, UiO-66-SO 3 Cu(I)− 0.15 still remains a high adsorption capacity.
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CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2023
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IF 3.9
Wanyi Tao,Bo Zhang,Luxia Yin,Xiao Teng,Zhang Wen,Zekai Zhang,Wensheng Ning
Fabrication of adsorbent can play an important role in the adsorption desulfurization technology as a most promising deeply desulfurization technology. Ag 2 O/CeO 2 /SiO 2 aerogel composites were synthesized, where the easy oxidation of Ce 3+ into Ce 4+ was realized by adding hydrogen peroxide, and were utilized to remove thiophenics from model fuels and aromatics. Compared with Ag 2 O/SiO 2 and CeO 2 /SiO 2 , the adsorption uptake and solvent washing regeneration performance of Ag 2 O/CeO 2 /SiO 2 for thiophene was obviously enhanced, and the adsorption selectivity for thiophene in the presence of aromatics was relatively close to CeO 2 /SiO 2 , attributed to that Ag 2 O/CeO 2 /SiO 2 adsorbed thiophenics via the π-Ag + complexation and S-Ce bonding, where the latter was main interaction. However, there was no synergistic interaction between Ag and Ce species acted as adsorption sites in the Ag 2 O/CeO 2 /SiO 2 , which could be supported by that the chemical state of Ag and Ce in Ag 2 O/CeO 2 /SiO 2 was consistent with corresponding one in Ag 2 O/SiO 2 and CeO 2 /SiO 2 , respectively. Among Ag 2 O/CeO 2 /SiO 2 aerogel composites with different molar ratios of Si/Ce, Ag 2 O/CeO 2 /SiO 2 -50 performed the best, its adsorption uptake for thiophene, benzothiophene and dibenzothiophene from model fuels arrived at 20.4, 21.8 and 27.2 mg-S/g ads , respectively. Langmuir and Freundlich adsorption isotherm models, the pseudo-second-order kinetic model could well describe the adsorption of thiophenics over Ag 2 O/CeO 2 /SiO 2 -50.
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OPTICAL MATERIALS
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2022
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IF 3.754
Yundong Zeng,Yunlan Xu,Dengjie Zhong,Jiaxin Mou,Haoyang Yao,Nianbing Zhong
The development of photocatalytic fuel cell (PFC) with visible-light response is usually limited by the low efficiency of electron-hole separation in photoanode . In this work, 20%-PTh/Ag 3 PO 4 /BiOI/Ti photoanode was prepared for the first time to construct a PFC with Cu 2 O/Cu cathode to degrade rhodamine B. With visible-light stimulation, the rhodamine B degradation rate, maximum photocurrent density and maximum power density of the PFC were respectively 96.33% (2 h), 0.39 mA cm −2 and 82.20 μW cm −2 . The main active species in the PFC were proved by quenching experiments to be h + , ∙OH and ∙O − 2 . The satisfactory performance of the PFC was due to that a double Z-scheme heterojunction was formed in the photocatalyst of 20%-PTh/Ag 3 PO 4 /BiOI/Ti photoanode, which made the photogenerated electrons of Ag 3 PO 4 and BiOI directly combine with the photogenerated holes of PTh , so that the photogenerated holes of Ag 3 PO 4 and BiOI and the photogenerated electrons of PTh directly or indirectly participated in the degradation reaction of RhB. In this way, the separation efficiency of electron-hole pairs in the photoanode was improved, and the performance of the PFC was significantly enhanced.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2023
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IF 6.1
Tong Zhou,Xue Xia,Heping Cui,Yun Zhai,Foxin Zhang,Khizar Hayat,Xiaoming Zhang,Chi-Tang Ho
The influence of pH was studied on volatile flavor formation during thermal treatment of an Amadori rearrangement product (ARP) with or without the addition of cysteine (Cys). The formation of thiols and sulfides or 2-acetylthiazole and pyrazines induced by Cys during thermal degradation of ARP was pH-dependent. At low pH levels, the hydrolysis of Cys to hydrogen sulfide (H2S) was promoted, giving rise to the increase of thiols and sulfides with an obvious meaty aroma. However, alkaline conditions were beneficial for enhancing the cyclization or transformation of imine to the enol structure, which strengthened the formation of 2-acetylthiazole and pyrazines with a roasted and nutty aroma. The imine was derived from the nucleophilic addition of Cys and methylglyoxal (MGO) and subsequent decarboxylation. At pH 8, Cys-induced variation of the flavor profile was weakened during thermal degradation of ARP. Accordingly, the combinational effect of pH and added Cys could be beneficial for achieving the desirable flavors during thermal processing of ARP.
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PubMed
高影响因子
IONICS
·
2023
·Vol. 29
·期 3
·1019-1028
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IF 2.8
Zou Yiming,Liu Pufang,Yan Yinglin,Chen Shiyu,Fan Chaojiang,Xu Rongfu,Wang Xianhui,Zhong Lisheng,Yang Rong,Xu Yunhua
Coating conductive polymers on carbon/sulfur (C/S) cathode is an effective strategy for improving electrochemical performances of lithium-sulfur (Li–S) batteries. Furthermore, the heteroatoms in conductive polymer coating exhibit positive effects on electrochemical property. Herein, the C/S cathode was coated by polypyrrole (PPy) and polythiophene (PTh) which were fabricated and systematically investigated to reveal the effect of nitrogen (N) and S heteroatoms on the electrochemical property. As expected, both experimental identification and theoretical calculation verified that the PPy containing N heteroatom-coated C/S cathode possessed strong chemical adsorption capability for soluble polysulfides, which suppressed shuttle effect more effectively and displayed a more stable cycling life, while the PTh@C/S cathode containing S atom presented less Li + diffusion energy barrier, which exhibited reduced polarization and superior rate performance. This work demonstrated the specific functions of N and S heteroatoms in conductive polymer coating on C/S cathode materials, indicating their promising application for advanced Li–S batteries.
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