JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2018
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IF 2.196
Li Zhang,Fangxiang Song,Yonggui Wu,Liang Cheng,Jin Qian,Shuai Wang,Qianlin Chen,Yan Li
In this study, the as-prepared spherical mesoporous silica was modified by amino and cyano groups via grafting, and the amino and carboxyl functionalized adsorption materials (MSS@NH2@COOH) were obtained after cyano group hydrolysis. The introduction of amino and carboxyl groups increases the surface active sites of the materials. The materials were characterized by SEM, TEM, XRD, N2 adsorption/desorption, XPS, etc. BET analysis revealed the amino and carboxyl functionalized mesoporous silica maintained their mesostructure nature and its specific surface area was 113 m2·g–1. TG-DTA and FT-IR confirmed effective grafting on the surface of mesoporous silica with functionalized groups. The simulated wastewater of Ni(II) was carried out to test the adsorption properties of the materials, and several influential factors (pH, initial nickel ion concentration, adsorbent dose) were discussed. The saturated adsorption capacity increased clearly from 46.55 mg·g–1 of MSS to 125.57 mg·g–1 of MSS@NH2@COOH. Even recycling three times, the removal rate of Ni(II) ions using MSS@NH2@COOH as an adsorbent could still be over 75%. Adsorption isotherms, kinetics, and thermodynamics of adsorption were taken to clarify the adsorption process. This newly developed adsorbent material does exhibit good reusable performance and effective removal of the heavy metal ions of Ni(II).
研究领域:
环境科学
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材料科学
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2021
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IF 3.498
Yaxin Feng,Guilin Wei,Yi Liu,Wenhong Han,Yan Chen,Runjie Sun,Lin Peng,Meihua Ma,Yu Zhang,Zhentao Zhang,Xirui Lu
The immobilization of iodine waste is a challenge in the field of nuclear waste . In this work, iodine waste (silver-coated silica gel with different iodine loadings) was immobilized at low-sintering temperatures (500, 550, and 600 °C). XRD represented that the crystallized phases of the sintered matrix consist of AgI and B 2 O 3 . The crystallization behavior of boron can be found as the sintering temperature increased from 500 °C to 600 °C. FT-IR results proved that in the process of crystallization, part of the microstructure related to B–O stretching transformed from [BO 4 ] to [BO 3 ] units, which benefits low-temperature iodine waste immobilization due to the bonding energy of [BO 3 ] is higher than that of [BO 4 ]. Our work reveals the B-related microstructure transition in low-temperature immobilization iodine waste.
研究领域:
核废物处理
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材料科学
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无机化学
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放射化学
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环境工程
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高影响因子
RSC Advances
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2015
·Vol. 5
·期 123
·101982-101988
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IF 3.84
Chang Liu,Bing Yan
Heterostructured chemosensors have excellent chemical stability, low contamination and excellent recyclability, and are regarded as a promising new generation of sensors with critical properties related to their sensing sensitivity and selectivity. Our preparation strategy for a heterostructured sensor is to construct it using a luminescent lanthanide complex and metal organic framework (MOF). A heterogeneous sensor is systematically produced using EuTTA and ZIF-8 to cover silica, and thin particles are obtained with small size and uniform morphology. Then, the particles were used as a highly selective and sensitive sensor to detect Cu2+ in aqueous solution. Eventually, we find that the well-structured silica@EuTTA@ZIF-8 microspheres have a good fluorescence stability, low detection limit and broad linear range in aqueous environments. These excellent properties make it a potential chemosensor for sensing of Cu2+ in environmental or biological solution systems.
研究领域:
分析化学
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环境监测
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生物传感
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材料科学
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无机化学
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纳米技术
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
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2024
·Vol. 130
·期 8
·547
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IF 2.5
Geriletu,Gu Hao
Flexible silicone materials have excellent elastic properties and can maintain excellent structural stability under high-intensity repeated deformation. They are ideal materials for preparing piezoresistive flexible sensors. However, traditional silicone materials exhibit strong insulation properties. The solid block structure is also not conducive to improving sensitivity. Inspired by the irregular hole structure of Taihu Lake stone, this paper prepared a porous silica gel skeleton (rGO/CTAB/SG) based on reduced graphene oxide film coating, which was equipped with flexible interdigital electrodes to achieve electrical signal derivation. The “honeycomb” shaped sensing module prepared in this way achieves an extremely wide elastic deformation range (20-200%). In the pressure feedback layer, the rGO film is evenly coated on the SG surface, which greatly improves the device conductivity and sensing performance (high sensitivities of 89.4 kPa − 1 and 25.4 kPa − 1 are achieved within 0-30.2 kPa and 30.2–42 kPa, ultra-high durability under more than 22,000 load-unload cycles.) Numerical simulation analysis results confirmed that the structure of the flexible substrate SG prepared by this method maintained well when extreme deformation occurred, and no fracture or stress concentration occurred. As an elastic sensor, after being integrated with a microprocessor, it can easily monitor and analyze human body movement in real time. It has huge potential in areas such as daily training and health monitoring of athletes.
研究领域:
生物医学工程
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柔性电子
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运动医学
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可穿戴传感器
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力学传感
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功能材料
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 3.5
Yuze Zhang,Xiaoqing Wang,Yuan Li,Yating Wang,Yang Zhou,Feifei Zhang,Jinping Li,Jiangfeng Yang
Adsorptive CH 4 /N 2 separation holds great promise, yet remains a challenging effort owing to the limited availability of effective adsorbents. In this study, a series of tetramethylammonium (TMA)-modified EMT zeolites (EMT-TMA) were developed via ion exchange for CH 4 /N 2 adsorption separation. The suitable pore and incorporated functional groups of EMT-TMA contribute to a pronounced increase in CH 4 adsorption capacity, accompanied by a significant decrease in N 2 adsorption, resulting in a substantial enhancement of CH 4 /N 2 selectivity. In particular, EMT-TMA-34% exhibits a selectivity of CH 4 /N 2 up to 5.4 at 298 K and 100 kPa, far surpassing that of the pristine EMT (1.8). Grand canonical Monte Carlo (GCMC) calculations indicate that introducing TMA markedly increases the difference for CH 4 and N 2 affinity on the adsorbent. Breakthrough experiments and pressure swing adsorption (PSA) simulation further confirm its outstanding CH 4 /N 2 separation performances. This study converts previously ineffective materials in this area into highly efficient CH 4 adsorbents, with significant potential for industrial coalbed methane (CBM) upgrading. Download: Download high-res image (245KB) Download: Download full-size image
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Advanced Agrochem
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2026
·
IF 9.2
Hong-Hao Li,Chao Gong,Jin-Peng Yang,Jian-Long Li,Xian-Kai Li,Xiao-Lei Zhu,Qiong-You Wu
Oomycete pathogens cause destructive crop diseases worldwide, leading to substantial economic losses and posing a continuous threat to agricultural sustainability. Oxathiapiprolin, the first piperidinyl-thiazole-isoxazoline fungicide, has revolutionized oomycete control by targeting oxysterol-binding proteins; however, its structural complexity and dependence on the isoxazoline moiety limit synthetic accessibility and further optimization. In this study, a series of oxathiapiprolin-inspired analogues was rationally designed by replacing the isoxazoline ring with an acrylonitrile fragment, a motif known for its conformational rigidity and tunable electronic properties. Compounds 5a - 5e , 11a-11i , and 15a - 15q were synthesized and evaluated for antifungal activity against oomycete pathogens. Among them, compound 15l exhibited outstanding in vivo efficacy, achieving 100% control of cucumber downy mildew at 1.25 mg L −1 . Structure-activity relationship analysis revealed that electron-withdrawing substituents, particularly the 2,6-difluoro substitution pattern, significantly enhanced biological activity. Molecular modeling indicated that compound 15l adopts a binding conformation generally similar to that of oxathiapiprolin but engages in distinct interactions, including hydrogen bonding with Gln31 and hydrophobic contacts with Lys114 and Met174. These results demonstrate that the acrylonitrile motif can serve as an effective bioisosteric replacement for the isoxazoline ring while retaining significant fungicidal activity. This work expands the structural diversity of oxathiapiprolin analogues and provides a promising, synthetically accessible scaffold for the development of next-generation oomycete fungicides.
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CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Yufeng Liu,Xiaofan Yang,Jinghua Hu,Junhao Liu,Peiwen Wu,Huifang Cheng,Huaming Li,Jixing Liu,Wenshuai Zhu
The hydroisomerization of isobutane is of considerable practical significance for the development of low-carbon and high-efficiency ethylene production technologies. However, conventional noble metal-solid superacid catalysts used for this reaction suffer from drawbacks including high cost and catalyst deactivation caused by the loss of halogen species and other active components. Herein, a series of highly dispersed W-Cu/Beta catalysts were designed and prepared via a facile ion-exchange method, and their catalytic performances toward isobutane hydroisomerization were systematically investigated. The results show that the introduction of WO x species effectively suppresses strong Brønsted acid sites of the Beta zeolite and modifies the Brønsted/Lewis acid balance of W-Cu/Beta catalysts. Although both Brønsted and Lewis acid site concentrations decrease with increasing W loading, Brønsted acidity is reduced to a greater extent, resulting in a lower Brønsted/Lewis acid site ratio. This acidity regulation is associated with suppression of undesired cracking reactions and improved selectivity toward n-butane. Under reaction conditions of 2 MPa, 380°C, and a weight hourly space velocity of 2.0 h ‒1 , the 5%W-Cu/Beta catalyst exhibits the best catalytic performance with isobutane conversion of 62.3% and n-butane yield of 32.4%. This enhanced catalytic behavior is attributed to optimized acidity and an appropriate distribution of catalytic active sites. Kinetic analyses indicate that WO x introduction alters the apparent kinetic behavior of the catalysts and is accompanied by an increase in apparent activation energy. The improved catalytic selectivity is correlated with changes in acidity distribution and suppression of cracking pathways rather than direct evidence of carbocation stabilization.
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PROGRESS IN ORGANIC COATINGS
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2026
·
IF 7.9
Zhenjie Xu,Xuanhao Zhang,Simiao Yu,Guangming Zhou,Tao Liu,Zhengyang Ji,Jie Liu,Gang Lu
Polypropylene (PP) is widely used in transparent packaging, optical components, and functional membranes; however, its intrinsic hydrophobicity and poor interfacial adhesion severely restrict the construction of durable superhydrophilic surfaces. To overcome these limitations while preserving the excellent bulk properties of PP, a durable and scalable superhydrophilic coating was fabricated by introducing a mussel-inspired polydopamine (PDA) adhesive interlayer, followed by the deposition of an organic–inorganic hybrid coating composed of zwitterionic poly(carboxybetaine acrylamide) (PCBAA) and silica sol. The PDA interlayer provides robust interfacial adhesion between the coating and PP substrate, while zwitterionic PCBAA introduces abundant hydration sites to enhance surface hydrophilicity and silica nanoparticles reinforce the hybrid network structure. FTIR and XPS analysis confirmed the successful synthesis of CBAA and the successful immobilization of the hybrid coating on the PP surface. The coating with a CBAA/silica sol mass ratio of 1:2 exhibited the best overall performance, achieving a water contact angle of approximately 5°, excellent antifogging capability, and high optical transparency. At −15 °C, the coating exhibited a freezing time of 603 s, corresponding to a freezing delay of 425 s relative to pristine PP. Moreover, the optimized coating maintained stable superhydrophilicity after hot-water treatment and immersion under acidic and neutral conditions, while retaining good hydrophilicity after repeated sandpaper abrasion. These results demonstrate that the PDA-PCBAA/SiO₂ hybrid coating provides a simple and effective strategy for fabricating multifunctional superhydrophilic PP surfaces with excellent antifogging, anti-icing, and durability.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xiangyi Zhang,Zihan Xing,Tong Wang,Limin Wu
Passive radiative cooling provides a sustainable, zero-energy cooling pathway, yet it faces a fundamental challenge in humid or cloudy conditions due to the blockage of the atmospheric transparency window and increased downward atmospheric radiation. Herein, we present a hierarchical Janus bilayer metafabric (TS/PLU) that synergistically combines radiative and evaporative cooling for thermal management with humidity resilience. Integrating a hydrophobic TPU/h-SiO 2 reflection layer with a hygroscopic PAN/LiCl@UiO-66 regulation layer achieves superior solar reflectance (>96%), high atmospheric-window emissivity (96.6%), and moisture capture and evaporation. Crucially, a “harvest-storage-release” mechanism is enabled by UiO-66-confined LiCl, mitigating deliquescence and salt leakage while facilitating heat dissipation even when radiative power is attenuated by high humidity. Asymmetric wettability ensures unidirectional water transport, preserving the radiative function of the hydrophobic top layer. Outdoor tests demonstrate a maximum sub-ambient temperature reduction of 13.4°C under sunny conditions, with a net radiative cooling power of 132.87 W m −2 . The LiCl@UiO-66 incorporation contributes an additional 5.1°C cooling enhancement relative to non-hygroscopic controls. Combined with mechanical robustness (≈370% elongation) and washing durability, this multimodal strategy offers a material-level proof of concept for thermal management featuring humidity resilience and shows potential relevance to personal cooling, outdoor thermal protection, and building-envelope cooling.
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ACS Catalysis
·
2026
·
IF 13.1
Jiejie Ling,Jilong Wang,Yao Xiao,Yan Gao,Xudong Tian,Jie Tuo,Chuang Liu,Dunru Zhu,Jingang Jiang,Shipeng Ding,Jian Li,Zhendong Wang,Anmin Zheng,Peng Wu,Le Xu
The conversion of CO2 to hydrocarbons via the methanol-mediated pathway represents a crucial route for carbon neutrality, yet preferable production of more value-added light olefins remains constrained by the fundamental activity-selectivity trade-off in zeolite catalysts. While previous studies established an acidity regulation mechanism based on balancing acid density with acid strength, the conversion of methanol intermediates is also critically governed by their intracrystalline diffusion, which can be severely hindered by structural defects particularly prevalent in highly siliceous zeolites. This work demonstrates a different approach that synergistically integrates zeolite acidity and defect engineering. A hydrothermal synthesis strategy with a selected inorganic source precisely controls aluminum incorporation into the highly siliceous CHA zeolite framework (Si/Al > 800). Subsequently, a postsynthetic fluorination followed by calcination effectively heals silanol defects. The resulting HS-CHA-F zeolite features a hydrophobic framework that facilitates rapid methanol diffusion while utilizing precisely tuned ultraweak acidity to steer selective C–C coupling. The optimized OXZEO bifunctional catalyst ZnZrOx/HS-CHA-F achieves 38.5% CO2 conversion and 91.3% light olefin selectivity in hydrocarbons at 653 K and 4 MPa, substantially outperforming conventional SSZ-13 and SAPO-34 benchmarks. This study establishes a generalizable method for overcoming long-standing limitations in CO2 hydrogenation through coupled zeolite acidity and defect engineering.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.7
Caiyan Zhang,Fengxian Sui,Meiyan Liu,Yalin Xie,Jiadi Su,Jing Gao,Ye Lin,Yang Yang,Xiaoming Hou
Oleic acid (OA)-enriched diet significantly enhances CD36 expression and promotes milk fat production in the mammary gland. However, the mechanisms by which OA upregulates this process are unknown. Here, GC-MS analysis and molecular docking were used to assess OA-CD36 binding, while gene expression and ChIP assays clarified the OA-mediated regulation of CD36 and milk fat synthesis. The results showed that CD36 is highly expressed in the lactating mammary tissues of dairy cows and positively regulates milk fat production. OA enters dairy cow mammary epithelial cells via direct binding to CD36. OA stimulation elevates the CD36 expression and translocation. ChIP assays confirmed CD36 as a target gene of NRF2. OA also enhances NRF2 expression and nuclear translocation, which in turn upregulates CD36 expression and function. This study elucidates the NRF2–CD36 axis as a regulator of OA-driven milk fat synthesis in mammary tissue, offering practical value for dairy industry nutritional strategies.
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Yinning Lin,Shuting Li,Huiping Yang,Qian Mo,Siying Lyu,Haikun Luo,Fan Yang,Xinchun Li,Fan Xia
Chiral metal–organic framework (CMOF)-based porous membrane materials have attracted great interest in the enantioseparation community. Despite remarkable progress, it remains a challenge to obtain functional membranes with a tunable enantioselectivity. Herein, we report on a photoresponsive and enantioselective nanoporous membrane prepared by in situ growth of azobenzene (Azo)-functionalized UiO-66 (UiO-66-Azo) onto anodic aluminum oxide (AAO) membrane. Tethering β-cyclodextrin (β-CD) to UiO-66-Azo/AAO via host–guest interaction created an efficient chiral hybrid nanochannel membrane, UiO-66-Azo@β-CD/AAO. The azo-rendered UV–vis photoswitch function could facilely realize assembly and disassembly of enantio-binding units, β-CD, enabling the enantioseparation capacity to refresh and improve the enantiomeric gating efficiency, and importantly, making the chiral membrane reusable. We demonstrated the utility of the chiral membrane by separation of S/R-naproxen enantiomer, gaining excellent enantioseparation performance, with an enantiomeric excess (ee) of 81.5% for S/R-naproxen. Molecular dynamics simulations were in agreement with the experimental findings. This work provides a low-cost and easy-to-mass-produce chiral nanochannel membrane for enantiomeric separation applications.
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高影响因子
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