JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2015
·
IF 3.368
Shuo Tao,Renshun Xu,Xiaolei Li,Dawei Li,Huaijun Ma,Donge Wang,Yunpeng Xu,Zhijian Tian
Extra-large-pore aluminophosphate –CLO (i.e., DNL-1) nanocrystals were synthesized in a eutectic mixture composed of diethylamine hydrochloride (DEAC) and ethylene glycol (EG) with 1-methylimidazole (1-MIm) as an additional amine using both conventional and microwave heating . The effects of the synthesis parameters, such as the amount of 1-MIm and the P/Al ratio, on the formation of DNL-1 nanocrystals were studied. The products were characterized using a variety of techniques. XRD , DLS , SEM and TEM results indicate that the as-synthesized DNL-1 nanocrystals have good crystallinity and narrow particle size distributions , and their average particle size was controlled in the 100–220 nm range by simply adjusting the amount of 1-MIm. TG–DSC and N 2 adsorption analyses reveal that the as-synthesized DNL-1 nanocrystals exhibit good thermal stability and the calcined samples possess high BET surface areas and large pore volumes . In addition, the cooperative structure-directing effects of 1-MIm and the eutectic mixture cation (DEA + ) in the formation of DNL-1 nanocrystals were discussed.
研究领域:
无机化学
·
材料科学
·
纳米技术
·
多孔材料
·
晶体工程
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2025
·
IF 2.1
Chong Yang,Yuyao Xie,Shimin Xu,Yuwei Luo,Huaiyu Zhu,Hui Wang
Liquid–liquid equilibrium (LLE) data for the ternary system of dodecane + 1-methylnaphthalene + solvent were experimentally determined at 298.2 K and 101.3 kPa using N-methylimidazole, trimethyl phosphate, furfural, N,N-dimethylacetamide, benzyl alcohol, triethyl phosphate, and ethylene glycol as extractants. Using the obtained LLE data, the distribution constant, separation factor, and performance index were calculated to evaluate the performance of these extractants in extracting and separating 1-methylnaphthalene from dodecane. The reliability of the LLE data was examined using the Hand and Othmer–Tobias equations, with the correlation coefficients of the fitted equations exceeding 0.96. Furthermore, the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) thermodynamic models were used to correlate the LLE data and obtain binary interaction parameters. The root-mean-square deviations between the experimental and calculated results were 0.15–0.97 for NRTL and 0.13–1.05 for UNIQUAC. The derived binary interaction parameters were validated using GMcal_TieLinesLL, a specialized software package for LLE calculations. These findings highlight that both the NRTL and UNIQUAC thermodynamic models can accurately describe the liquid–liquid phase equilibrium behavior of ternary systems, providing a theoretical basis for the industrial application of catalytic cracking diesel extraction and aromatics removal technology.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·122126
·
IF 7.5
Xiaojie Zhang,Keyi Liu,Zihan Zhang,Hong Peng,Yuefa Gong
Efficient and simultaneous removal of chromium(VI) oxyanions and heavy metal cations from complex electroplating rinse wastewater remains a major challenge. In this study, polyethyleneimine-chitosan/imidazolium-polysulfone composite beads (denoted as CSPF) were fabricated by integrating polyethyleneimine-modified chitosan powder (CSPI) with imidazolium-functionalized polysulfone (IMPSF) via a phase inversion method. The resulting CSPF beads was applied to simultaneously remove Cr(VI) and Cu(II) from simulated electroplating rinse wastewater. In a single-metal system at pH 5, CSPF exhibited maximum adsorption capacities of 89.3 mg g −1 for Cu(II) and 251.4 mg g −1 for Cr(VI). In the Cr(VI)/Cu(II) binary system, a notable co-removal synergy was observed, with adsorption capacities of CSPF increasing by 193.3% for Cu(II) and 39.7% for Cr(VI) compared to the single-metal system. The presence of other coexisting inorganic anions further significantly enhanced the adsorption of Cu(II) by CSPF. The promotion effect of different anions on Cu(II) adsorption follow the order of HCrO 4 − > H 2 PO 4 − ≈ SO 4 2 − >> NO 3 − ≈ Cl − . This trend is consistent with the extent to which they elevate the final solution pH and Cu 2p 3/2 binding energy after adsorption, and is further confirmed by DFT calculations. These results indicate that a unique electrostatic shielding–proton transfer synergistic mechanism is the key factor responsible for the synergistic co-removal of Cu(II) and Cr(VI) from complexed wastewater. Column cycling experiments demonstrated that CSPF could continuously and efficiently remove both Cu(II) and Cr(VI) from the simulated electroplating rinse wastewater, along with good reusability.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Haiyang Shao,Chen Wang,Miaomiao Zheng,Yafei Cheng,Lihai Fan,Haiyang Yan,Xiaocheng Lin
To advance industrial acid recovery via diffusion dialysis, the crucial step is to engineer anion exchange membranes (AEMs) with superior acid permeability and selectivity. Herein, a PIM-1-based AEM was fabricated via liquid bromine-induced bromination followed by a non-crosslinking alkylation with 1-methylimidazole, which preserves the rigid polymer backbone and intrinsic microporosity. The optimized, mechanically robust membrane exhibited a specific surface area of 549 ± 18 m 2 g −1 , providing abundant free volume for rapid proton transport, and a pore size distribution precisely centered between 0.40 and 0.75 nm, enabling selective acid recovery via size sieving in a typical HCl/FeCl 2 wastewater system. This membrane achieved a proton dialysis coefficient of 59.4 ± 4.3 × 10 −3 m h −1 and a selectivity of 74.4 ± 2.7 over Fe 2+ , outperforming the commercial DF-120 AEM by sevenfold and fourfold, respectively. This work provides a scalable, non-crosslinking functionalization route to fabricate mechanically robust AEMs from PIMs, leveraging their preserved microporosity for efficient and selective acid recovery.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Niankun Guo,Tianjing An,Zhaohao Li,Dan Gao,Jiaxi Yang
The chemical absorption and the physical adsorption constitute primary mechanisms in conventional CO 2 capture methods. This work proposes a novel porous ionic liquid synthesized by coupling these two mechanisms to enhance the CO 2 capture performance. Specifically, [TEPA][N-MIm] reacts with CO 2 to form carbamate species, while ZIF-8 nanoparticles are incorporated to construct stable cavity structures within the solution, providing physical adsorption sites for CO 2 . Based on CO 2 capture experiments and bubble dynamics high-speed photography experiments, CO 2 capture processes by [TEPA][N-MIm] consist of three phases: the rapid reaction phase, the slow capture phase, and the stabilization phase. Generally, improving the CO 2 mass transfer performance through methods such as increasing flowrate also enhances the capture performance. However, temperature elevation introduces more complex effects: The chemical reaction rate and the physical solubility exhibit opposing trends, and the CO 2 capture performance varies among different types of PILs. Additionally, when the solution temperature reaches a specific threshold, partial carbamate begins to decompose, leading to the stabilization of the CO 2 capture capacity.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2026
·
IF 5.1
Chaohang Xu,Yongqiang Ye,Fei Xiao,Yajun Huang
Ionic liquids (ILs), as a new class of environmentally friendly and highly efficient flame retardants, have been rarely applied to thermoplastic polymers due to their intrinsic liquid nature. In this study, a facile and low-cost strategy was developed to introduce a phosphorus-containing ionic liquid (PIL) into the structure of expandable graphite (EG), forming a hybrid flame retardant (PIL@EG) for improving the fire safety and thermal conductivity of thermoplastic polyurethane (TPU). The results demonstrated that by combining physical ( i.e., EG) and chemical ( i.e., PIL) intumescent strategies, the TPU composite containing 15 wt% PIL@EG achieved a UL-94 V-0 rating and exhibited an increased limiting oxygen index (LOI) of 30.8%. Cone calorimeter test (CCT) results revealed that, compared with neat TPU, the peak heat release rate (PHRR) of the TPU/15 EG and TPU/15PIL@EG composites decreased by 82.6% and 82.8%, respectively, while the corresponding total heat release were reduced by 29.4% and 47.3%, respectively. The incorporation of PIL@EG effectively retarded the thermal degradation rate of TPU, enhanced the thermal stability, and suppressed the emission of volatile degradation products during combustion. Meanwhile, the thermal conductivity of TPU/15PIL@EG was significantly enhanced, reaching 0.82 W/m·K, which corresponds to increases of 204% and 22.4% compared with neat TPU and TPU/15 EG, respectively. Overall, this study not only demonstrates the great potential of ionic liquids in thermoplastic systems but also provides new insights into their functionalization and multi-field applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zongming Lv,Hongping Li,Meilin Zhang,Yuanyuan Lao,Lihua Fu,Baofeng Lin,Chuanhui Xu,Bai Huang
Liquid-free ion-conductive elastomers represent an attractive platform for flexible electronics by circumventing the leakage and instability inherent to conventional hydrogels and ionogels. Despite the ability of polysaccharide fillers to address the low overall performance in single-network, liquid-free ion-conductive elastomers, balancing their conflicting electrical and mechanical properties is hindered by poor filler dispersion. Here, we introduce a green water vapor-mediated regeneration strategy to construct a cellulose filler skeleton. By effectively lowering the cellulose regeneration rate to resolve structural inconsistency and surface roughness, this strategy produces a more homogeneous cellulose skeleton, thus allowing its uniform dispersion within the PDES matrix. The uniform 3D porous cellulose framework, rich in hydroxyl groups, synergistically forms a homogeneous network with polyacrylic acid. This enables effective energy dissipation by providing additional reversible hydrogen bonds and also offers stable pathways for free ion migration. The as-fabricated elastomer composite exhibits exceptional mechanical robustness with a tensile strength of 3.1 MPa, Young's modulus of 1.63 MPa and toughness of 13.0 MJ/m 3 , together with tunable ionic conductivity (1.1–3.2 × 10 −2 S/m), enhanced environmental stability, and intrinsic self-healing capability. PDES-VC-2% withstands 10,000 cycles at 200% strain without fracture, and maintains stable signal output for approximately 680 cycles. Consequently, strain sensors from this elastomer are employed for human motion monitoring, information encryption, and handwriting recognition. A battery fabricated with it as the solid-state electrolyte achieves a 0.731 V open-circuit voltage and stable 14-day operation, making it suitable for both charging capacitors and driving self-powered sensing, with both repeatability and sustainability. This work provides a sustainable strategy for constructing internal networks in ionic conductors using polysaccharides, opening new opportunities for multifunctional and environment-friendly soft iontronics.
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2026
·
IF 9.8
Yangyang Wang,Rujie Li,Shanxu Han,Yi Jing,Xinyu Gao,Yajuan Liu,Zhongqi Ren,Zhiyong Zhou
Addressing the critical challenge of lithium recovery from hypersaline oilfield produced water, an integrated extraction-purification process for oilfield water with high calcium and sodium content was developed and the molecular mechanisms governing lithium selectivity was revealed. Through systematic screening and multi-parameter optimization, a synergistic extractant system comprising tributyl phosphate (TIBP), sodium tetraphenylborate (NaBPh 4 ), and 2-octanone achieved excellent performance under optimal conditions (70 vol% TIBP, n(NaBPh 4 ):n(Li + ) = 1.8:1, O/A = 1), delivering 51.4% single-stage Li + extraction efficiency (1.0 g/L Li + brine) with simultaneous high rejection of Ca 2+ and Na + . An innovative one-step stripping-precipitation approach using 2.0 mol/L NH 4 HCO 3 (O/A = 1:1) achieved >95% stripping efficiency, directly yielding battery-grade Li 2 CO 3 (>99.9% purity,) after two-stage cross-flow washing (O/A = 5:1, impurities <83 ppm). The organic phase retained stable performance over 11 cycles without replenishment, demonstrating exceptional stability and reusability. Mechanistic studies revealed that the P O group in TIBP coordinated with Li + via n → π* transitions, while BPh 4 − enhanced hydrophobicity through electrostatic interactions with [Li(TIBP) 2 (H₂O) 2 ] + . DFT calculations confirmed the thermodynamic preference for Li + binding ( ∆ G Θ = −24.48 kJ/mol) over Na + (−6.08 kJ/mol) and Ca 2+ (−5.41 kJ/mol), with optimized coordination geometry and extraction sequence. This work established a molecular-to-process design paradigm for sustainable lithium recovery, offering a novel approach to unlock lithium resources from complex brines.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Juan Wu,Xiaoran Ren,Kai Huang,Bencai Lin
This study develops composite polymer electrolytes (CPEs) by incorporating polydopamine-modified ZIF-8 (PDA@ZIF-8) and an ionic liquid (IL), 1-butyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imide ([BMIM][TFSI]), into poly(vinylidene fluoride- co -hexafluoropropylene) (PVDF-HFP) matrices to reduce interfacial resistance and enhance battery stability. Leveraging ZIF-8's nanoporous structure, PDA's adhesion properties, and synergistic PDA-PVDF-HFP interactions, the PDA@ZIF-8 filler achieves uniform dispersion while preserving its integrity and improving polymer-filler compatibility. Compared to CPEs without PDA@ZIF-8 (ionic conductivity: 1.66 × 10 −4 S cm −1 at 25 °C), those containing an optimal amount of PDA@ZIF-8 exhibit significantly higher conductivity. Specifically, the PH/ [email protected] membrane achieves a conductivity of 2.09 × 10 −4 S cm −1 at 25 °C. Furthermore, PDA@ZIF-8 incorporation substantially enhances the CPEs' mechanical properties. Owing to the excellent Li-salt dissociation capabilities of both the IL and PDA@ZIF-8, the PH/ [email protected] membrane demonstrates a high Li + transference number of 0.54. Li|PH/ [email protected] |Li symmetric cells maintain a low steady-state overpotential for over 600 h. Moreover, LiFePO 4 |PH/ [email protected] |Li batteries deliver a discharge capacity of 132 mAh g −1 and retain over 98 % capacity after 100 cycles under 0.1C at 25 °C, highlighting their strong potential for lithium-ion battery applications. This work provides an effective strategy for preparing high-performance CPEs that enhance lithium-ion battery performance.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Hui-ting Hu,Xiao-mei Li,Wen-cai Jiang,Chen Ni,Yu-yang He,Guo-qi Zhang,Hao Yu,Zhi-Bo Hou
Per- and polyfluoroalkyl substances (PFAS) were a class of hazardous contaminants known for their high environmental persistence and toxicity. Due to their strong polarity, wide variety, and broad distribution, a rapid, accurate, and on-site detection method was urgently needed for future screening and emergency response. Herein, a dandelion-like Pd/Cu nanozyme with triple enzyme-like activities (oxidase-like, peroxidase-like, and laccase-like) was synthesized by one-step hydrothermal method. Different PFAS species inhibited these three enzyme-like activities to varying extents. By quantifying absorbance changes, distinct fingerprint patterns were constructed, and a three-channel colorimetric sensor array was developed. This array exhibited high selectivity and robust anti-interference capability for discriminating seven PFAS species. The LDA score plot revealed distinct clustering of different PFAS classes and complex mixtures, indicating clear separability among their fingerprints. The developed nanozyme sensor array was successfully applied to the detection of PFAS in environmental water (river, lake, and tap water). This work provided a novel strategy for selective and reliable detection of PFAS in complex environmental matrices.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Jiahao Chen,Yiting Liu,Yichu Xue,Di Wu,Yixin Feng,Zhiwei Chang,Penglong Zhang,Ming Li,Chenjie Zhu
This work modified lignin using a facile two-step grafting method with high yield. • Modified lignins show improved radical scavenging activity and thermal stability. • DDSA modification enhances hydrophobicity and reduces glass transition temperature. • NR/PL and NR/DPL exhibit higher vulcanization efficiency. • NR/DPL shows a superior anti-thermo-oxidative performance. Developing high-performance lignin-based anti-thermo-oxidative agents offers a promising pathway for both the valorization of lignin and the sustainability of rubber materials. To enhance the thermo-oxidation resistance of natural rubber (NR), this study tailored lignin's structure via facile molecular engineering approaches, producing p -aminodiphenylamine-grafted lignin (PL) and (2-dodecen-1-yl)succinic anhydride (DDSA)/ p -aminodiphenylamine co-grafted lignin (DPL) with high grafting yields. Their structures were verified by FTIR, 2D-HSQC and elemental analysis. The introduction of p -aminodiphenylamine significantly improved the thermal stability of lignin, while the incorporation of DDSA markedly enhanced its hydrophobicity and reduced its glass transition temperature. In NR composites, both PL and DPL impart a high vulcanization efficiency and a rubber reinforcing effect. Notably, the NR/DPL sample after thermo-oxidative aging exhibits an improvement of 138.5% in tensile strength and 44.2% in elongation at break compared to the NR/L benchmark, and shows the highest anti-aging coefficient (0.52) outperforming NR/L by threefold. DSC, FTIR and TG-MS were applied to illustrate the thermo-oxidative behavior of the NR samples. This work provides a molecular engineering strategy for shaping lignin into an effective bio-based anti-thermo-oxidative agent.
✓ 已验证
产品关联
DOI
高影响因子
Science Advances
·
2026
·Vol. 12
·期 11
·
IF 13.9
Siyao Qin,Xucong Wang,Hao Gong,Xiaoliang Li,Zifei Meng,Long Zheng,Ning Li,Zhong Lin Wang,Xiangyu Chen
Contact electrification (CE) is widely applied in microscale energy harvesting and active sensing. However, the CE results vary in charge density and polarity between different materials, while the preexisted charges on the surface make the CE process more unpredictable. Here, an adhesive triboelectric elastomer (ATE) is synthesized by combining the ionic liquids (ILs) and pressure-sensitive adhesive (PSA) to generate normalized charge polarity and density by CE. The ILs neutralize the preexisted charges on the targeted surface. Then, the adhesion groups of PSA bond to targeted surface and trigger the heterolytic cleavage, leaving negatively charged fragments on the targeted surface. This ATE is capable of generating stable charge density (−50 to −70 microcoulombs per square meter) on almost all the commonly used triboelectric materials, irrespective of the preexisted charges on the surface. The stable and normalized CE effect benefits all the triboelectric sensors and enables special functions, and this ATE design also deepens the understanding of CE and interface science.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）