PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Yikun Ji,Mingjun Zou,Kaige Yan,Bin Liu,Shujuan Liu,Qian Ye,Feng Zhou
In this study, a novel ionic liquid-functionalized dual cross-linked hydrogel was developed via ring-opening reaction grafting ionic liquid. The hydrogel matrix containing epoxy groups was first synthesized via a one-pot polymerization reaction of acrylic acid, acrylamide, methylene diarylamide and glycidyl methacrylate, followed by the introduction of Fe 3+ ions to improve its mechanical strength, and then the ionic liquid MIm-Br with amino group was grafted onto the hydrogel matrix by amino-epoxy ring-opening reaction. The resulting ionic liquid-functionalized hydrogel exhibited excellent hydrophilicity and anti-adhesion properties, achieving an antibacterial rate exceeding 98 % against two species of bacteria and a removal rate of over 95 % for two types of algae. The synergistic effect of the hydrogel and the ionic liquid was responsible for these efficient antibacterial and antifouling properties. The hydrogel's high hydrophilicity and low adhesion confer them excellent anti-adhesion effects for bacteria and alga. Meanwhile, the positively charged imidazole ring of MIm-Br interacts with the negatively charged bacterial cell membranes through electrostatic adsorption, altering the cell's membrane permeability and causing leakage of intracellular substances. Moreover, the ionic liquid-functionalized hydrogel exhibited significantly improved swelling properties, water retention and water lubrication performance, enhancing its utility.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaozhi Zhang,Tiantian Wang,Yi Wang,Yaojie Yan,Shenghua Xue,Shujuan Liu,Qian Ye,Feng Zhou,Weimin Liu
Recently, covalent organic frameworks (COFs) have been extensively studied due to their abundant active sites for functionalization and the derived various applications. Herein, we prepared poly(ionic liquid) functionalized COFs via mechanochemical reaction to bond with initiator and the following surface-initiated polymerization. Firstly, the initiator 2-bromo-2-methylpropionyl bromide bonded with the hydroxyl group of DT-COF through ball milling driven mechanochemical reaction, then the ionic liquid monomer (IL-Cl) can grow on COF skeleton from the active sites of initiator via surface-initiated atom transfer radical polymerization (SI-ATRP) to obtain the poly(ionic liquid) functionalized COF (PIL-Cl@DT-COF). The as-prepared PIL-Cl@DT-COF as well as the PIL-PF 6 @DT-COF sample after anion exchange with PF 6 − served as oil-based lubricant additives, significantly reducing the friction coefficient and wear volume of base oil PAO10, especially PIL-PF 6 @DT-COF can reduce the average friction coefficient from 0.169 to 0.094 and decrease the wear volume by 82.9 %. The outstanding tribological properties mainly benefited from the tough protective tribo-film, which was built via tribological reaction on the friction interface, containing the absorbed PIL-PF 6 @DT-COF, ferric oxides and anti-wear F, P compounds.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Kaige Yan,Baoluo He,Shihan Wu,Yixin Zeng,Peng Wang,Shujuan Liu,Qian Ye,Feng Zhou,Weimin Liu
Hydrogels are ideal for antifouling materials due to their high hydrophilicity and low adhesion properties. Herein, poly(ionic liquid) hydrogels integrated with zwitterionic copolymer-functionalized gallium-based liquid metal (PMPC-GLM) microgels were successfully prepared by a one-pot reaction. Poly(ionic liquid) hydrogels (IL-Gel) were obtained by chemical cross-linking the copolymer of ionic liquid, acrylic acid, and acrylamide, and the introduction of ionic liquid (IL) significantly increased the cross-linking density; this approach consequently enhanced the mechanical and antiswelling properties of the hydrogels. The swelling ratio of IL-Gel decreased eight times compared to the original hydrogels. PMPC-GLM microgels were prepared through grafting the zwitterionic polymer PMPC onto the GLM nanodroplet surface, which exhibited efficient antifouling performance attributed to the bactericidal effect of Ga3+ and the antibacterial effect of the zwitterionic polymer layer PMPC. Based on the synergistic effect of PMPC-GLM microgels and IL, the composite hydrogels PMPC-GLM@IL-Gel not only exhibited excellent mechanical and antiswelling properties but also showed outstanding antibacterial and antifouling properties. Consequently, PMPC-GLM@IL-Gel hydrogels achieved inhibition rates of over 90% against bacteria and more than 85% against microalgae.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Hongrun Li,Xianyi Zhu,Tianlong He,Chongxian Qu,Qiuling Tian,Haibo Xie,Lijie Hu,Songmiao Liang,Lihua Zhang,Jili Yuan
Catalytic processes have been widely involved in the chemical industry; thus, the design and preparation of sustainable, highly active, and recyclable catalysts is significant toward a sustainable chemical industry. Herein, by taking the particular solution properties of cellulose solution in a 1,1,3,3-tetramethyl guanidine (TMG)/dimethyl sulfoxide (DMSO)/CO2 solvent system, a straightforward “one-pot” method was developed to prepare the cellulose-suspending TMG-based protic ionic liquid (PIL) hydrogel (CPILH-X) with hydrophilic–hydrophobic changes by simply tuning the molar ratio of succinic anhydride (SA) and 2-dodecen-1-ylsuccinic anhydride (DSA), in which the TMG was not only a solvent component for cellulose dissolution but also a green organo-catalyst for the reaction of cellulose with SA and DSA, as well as a cation component in the formed CPILH-X. CPILH-X was identified as the support for palladium nanoparticles (Pd NPs) by the impregnation and reduction method, yielding a series of CPILH-X/Pd NPs (Pd@CPILH-X) catalyst. The structure of Pd@CPILH-X was systematically characterized by various characterization technologies. The suspended TMG-based PILs were capable of stabilizing Pd2+ as a nucleation center in the reduction to Pd NPs process, making the Pd NPs well-dispersed in the framework of CPILH-X. Moreover, not only the DSA could improve the hydrophobicity of Pd@CPILH-X but also its long chain structure was capable of preventing the aggregation of Pd NPs. It was found that the catalytic activity of the Pd@CPILH-X was significantly correlated to their hydrophilic/hydrophobic properties when they were used as a catalyst in hydrogenation reaction, and the Pd@CPILH-5 with the highest hydrophobicity exhibited 99% catalytic conversion efficiency in 30 min and superior catalytic recyclability for the typical hydrogenation of styrene.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xiong Chang,Haorui Tang,Zhewen Xie,Zhishan Li,Dongfang Li,Hua Wang,Xing Zhu,Tao Zhu
Despite the remarkable progress of perovskite solar cells (PSCs), the substantial inherent defects within perovskites restrict the achievement of higher efficiency and better long-term stability. Herein, we introduced a novel multifunctional imidazole analogue, namely, 1-benzyl-3-methylimidazolium bromide (BzMIMBr), into perovskite precursors to reduce bulk defects and inhibit ion migration in inverted PSCs. The electron-rich environment of −N– in the BzMIMBr structure, which is attributed to the electron-rich adjacent benzene ring-conjugated structure, effectively passivates the uncoordinated Pb2+ cations. Moreover, the interaction between the BzMIMBr additive and perovskite can effectively hinder the deprotonation of formamidinium iodide/methylammonium iodide (FAI/MAI), extending the crystallization time and improving the quality of the perovskite precursors and films. This interaction also effectively inhibits ion migration to subsequent deposited films, leading to a noteworthy decrease in trap states. Various characterization studies show that the BzMIMBr-doped films exhibit superior film morphology and surface uniformity and reduced nonradiative carrier recombination, consequently enhancing crystallinity by reducing bulk/surface defects. The PSCs fabricated on the BzMIMBr-doped perovskite thin film exhibit a power conversion efficiency of 23.37%, surpassing that of the pristine perovskite device (20.71%). Additionally, the added BzMIMBr substantially increased the hydrophobicity of perovskite, as unencapsulated devices still retained 93% of the initial efficiency after 1800 h of exposure to air (45% relative humidity).
✓ 已验证
产品关联
DOI
PubMed
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2024
·
IF 4.5
Yuchen Yang,Xiaoyan Yuan,Xiangkui Ren,Lixia Ren
Microwave-absorbing materials are very important to reduce electromagnetic interference and pollution. Combining multi-component materials with multiple loss mechanisms is a practical strategy for enhancing microwave absorption performance. In this work, we synthesize a magnetic poly(ionic liquid) (PVim[FeCl 4 ]) with crosslinkable groups and prepare PVim[FeCl 4 ]/graphene oxide (GO)/Fe 3 O 4 composites by incorporating GO and Fe 3 O 4 to enhance the microwave absorption property of the composites. The synergistic effect of GO and Fe 3 O 4 is studied at different feeding ratios, the PVim[FeCl 4 ]/10%GO/20%Fe 3 O 4 composite shows better microwave absorption performance, with a minimum reflection loss ( RL min ) of −49.54 dB at 17.31 GHz and 7.1 mm thickness, along with an effective absorption bandwidth (EAB) of 2.52 GHz. This enhancement can be attributed to the quarter-wavelength matching model, well-matched characteristic impedance, and multiple loss mechanisms originating from PVim[FeCl 4 ], GO, and Fe 3 O 4 . The magnetic poly(ionic liquid) composites show promising prospects in microwave absorbing materials.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Wei Zhang,Min Zhang,Jifei Song,Qianru Wang,Yi Hu
Laccase has received widespread attention in pollutant degradation , but the current challenges in its poor stability, easy inactivation, and difficult recovery have seriously affected the application. The enzyme immobilization technology is a crucial approach to enhance the stability, recoverability , and other valuable properties to improve the effectiveness of biocatalysts . In this study, a polydopamine coating Fe 3 O 4 nanoparticle was modified with an ionic liquid , which can be used for laccase immobilization. The incorporation of polydopamine provided a biocompatible and reactive coating for nanoparticles, while the presence of ionic liquids ensured that enzyme molecules were positioned away from the carrier surface, which facilitated the stabilization of the spatial structure of the enzyme and the retention of its activity. The immobilized laccase exhibited a broad pH and temperature and satisfactory stability. The activity of immobilized laccase remained at approximately 80 % of its activity even after incubation at 50 ℃, and over 65 % activity at storage for 30 days, which is 1.6 times and 2.9 times higher than the free laccase, respectively. The biocatalytic demonstrated excellent removal of phenolic contaminants, achieving removal efficiencies of approximately 97 % for 2,4-dichlorophenol. The remarkable magnetic response greatly facilitates the collection and subsequent reuse of the biocatalyst up to six times while still maintaining a relative removal efficiency of over 70 % for 2,4-dichlorophenol. Furthermore, the biocatalytic also exhibited excellent removal efficiency for Bisphenol A and phenol, which were 1.5 and 1.4 times more effective than the free laccase. The immobilization method provided in this work offers new ideas for the development and efficient biological enzyme preparation for industrial wastewater treatment .
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2024
·
IF 4.8
Ximei Sun,Feirong Wang,Jieqiong Wang,Hao Xiao,Qiang Kang,Yiqian Zeng,Qinglai Yang,Xiaofeng Tan
Designing the robust catalysts with a self-supported open structure and engineering surface would be beneficial for promoting intrinsic activity, increasing active sites, and enhancing electron/mass transfer during catalysis. The metallic aerogels (MAs) with hierarchical porous nanostructures and pure metal skeleton could be a favorable platform for fabricating high-performance catalysts. The introduction of an interface engineering strategy causes beneficial structural and electronic properties of MAs. Herein, the ionic liquid (IL) induced metallic Pd aerogels with well-defined nanowires are developed for the efficient catalytic reduction of 4-nitrophenol (4-NP) in the presence of NH 3 BH 3 . The engineered IL-Pd aerogels exhibit the integrated advantages of exceptional catalytic activities (including a high k value of 31.2 × 10 −2 s −1 and a high turnover frequency (TOF) of 320.4 h −1 ), acceptable costeffectiveness with a low NH 3 BH 3 concentration (n[NH 3 BH 3 ]/n[4-NP] of 120), remarkable cyclability, and noticeable longstanding stability. This work opens a new avenue for developing high-performance MAs with improved activity and durability.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xiao-Man Cao,Yi-Feng Shao,Yan-Cun Dong,Qingguo Zhang,Hao Ge,Daliang Liu,Qiong Wu,Zhi-Jia Sun
The unique structure and strong interaction of multiphase hybrid materials have garnered significant attention as prospective candidates for electrode materials in the realm of energy storage. The present study presents a rational design of a functional NiSe 2 -CoSe 2 /N, B double-doped carbon hybrid composite (NCS/C NB ), resulting in the emergence of various novel cooperative regulatory mechanisms involving: (i) the heterogeneous structure of NiSe 2 and CoSe 2 generates built-in electric fields to increase electron mobility; (ii) the incorporation of polyatomic double-doped carbon (N, and B) expedites electron transfer rate; intriguingly, (iii) ionic liquids not only serve as polyatomic dopants in the reaction system but also influence the microstructure of the composite. Benefiting from these synergistic effects, the NCS/C NB hybrid exhibits remarkable charge storage capacity and rapid electrochemical kinetics, driven by its multi-fold hollow structure and multicomponent cooperative modulation. The capacity (682 C g −1 at 1 A g −1 ) and rate performance of NCS/C NB surpass those of other monometallic selenides (NiSe 2 /N, B co-doped carbon (NS/C NB ) and CoSe 2 /N, B co-doped carbon (CS/C NB )) within the same system. In the meantime, an asymmetric device using NCS/C NB as the cathode material performs admirably, displaying an exceptional energy density (51.3 Wh kg −1 at 1.28 kW kg −1 ). The present research provides valuable perspectives for the innovative design and fabrication of advanced electrode materials exhibiting exceptional electrochemical properties. We firmly believe that hollow structures featuring multiple cooperative regulatory mechanisms and abundant folds will garner significant attention.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Coatings
·
2024
·Vol. 14
·期 5
·633
·
IF 2.9
Xueqiong Su,Ruimin Wang,Huimin Yu,Jin Wang,Ruixiang Chen,He Ma,Li Wang
Although perovskite has great potential in optoelectronic devices, the simultaneous satisfaction of material stability and high performance is still an issue that needs to be solved. Most perovskite optoelectronic devices use quantum dot spin coating or the gas-phase growth of perovskite thin films as the photoelectric conversion layer. Due to stability limitations, these materials often experience a significant decrease in photoelectric conversion efficiency when encountering liquid reagents. The self-assembled growth of hybrid perovskite crystals determines superior lattice ordering and stability. There are three types of ionic liquids—[Emim]BF4, EMIMNTF2, and HMITFSI—that can effectively enhance the X-ray photoelectric conversion performance of hybrid perovskite crystal CH3NH3PbI3(MAPbI3), and the enhancement in the photocurrent leads to an improvement in the sensitivity of X-ray detectors. We soak the perovskite crystals in an ionic liquid and perform two treatment methods: electrification and dilution with ETOH solution. It is interesting to find that MAPbI3perovskite single crystal materials choose the same optimized ionic liquid species in X-ray detection and photovoltaic power generation applications, and the effect is quite the opposite. Compared with untreated MAPbI3crystals, the average photocurrent density of Electrify-HMITFSI MAPbI3increased by 826.85% under X-ray excitation and the sensitivity of X-ray detectors made from these treated MAPbI3crystals significantly increased by 72.6%, but the intensity of the PL spectrum decreased to 90% of the untreated intensity.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Dongni Liu,Peng Cui,Fangfang Zhang,Hao Ren,Lilin Fang,Xiaosi Sun,Haiyan Ji,Wenshuai Zhu,Zhichang Liu
Ionic liquid is an ideal candidate in the extraction of aromatic compounds. The design and construction of ionic liquids with high extraction efficiency and selectivity towards to the specific aromatics remain crucial question. In this paper, with the aid of orthogonal array experiment, the imidazolium-based ionic liquids with long alkyl chain on the cations were determined to possess high aromatics extraction efficiency. Furthermore, the Lewis acid anion was introduced into the ionic liquid to form 1-dodecyl-3-methylimidazolium ferric chloride ([C 12 mim][FeCl 4 ]) and performed 62 % and 100 % extractant efficiency of naphthalene (NAP) and anthracene (ANT), respectively. Then the porous carbon materials (P1-1000) derived from hyper-crosslinked porous polymers (HCP) which possessed high BET surface area (1186 m 2 /g) was dispersed in [C 12 mim][FeCl 4 ] to form porous ionic liquid. The single extraction efficiency of NAP improved from 62 % to 77 %. The great single extraction efficiency was attributed to the high porosity, additional adsorption sites provided by the Lewis acid anions and the hydrophobic long alkyl chain on the cations. After three times extraction, the concentration of NAP dropped down to 0. The porous ionic liquids also showed good recycle performance. The construction of porous ionic liquids provided an efficient approach for extraction of polycyclic aromatic hydrocarbons from aliphatic hydrocarbon.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Wei Zheng,Haiyan Jiang,Chaoran Wang,Shaojuan Zeng,Xiaochun Zhang,Haifeng Dong,Lu Bai,Xiangping Zhang
Carbon dioxide (CO2) separation plays a vital role in environmental protection and resource reuse. A potential approach to achieving satisfactory CO2 separation is combining the benefits of ionic liquids (ILs) and membranes. In this work, the IL-LDH nanosheets were obtained by functionalized IL modifying layered double hydroxides (LDH) and used to construct the Pebax/IL-LDH mixed matrix membranes (MMMs). The X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS) spectra analysis displayed that the IL was successfully grafted to the LDH nanosheets. The characterizations of MMMs showed that the introduction of IL-LDH reduces the crystallinity of the Pebax membrane, and there are hydrogen bond interactions between fillers and Pebax. The IL modification strengthens the membranes with better CO2 affinity and improves the interfacial compatibility between Pebax and LDH. Meanwhile, the CO2-philic nanochannels formed by the slits of IL-LDH nanosheets facilitate CO2 transport in MMMs. Such inherent properties of the IL and LDH conjunctly contribute to the improvement of the CO2 separation performance of membranes. The optimum Pebax/IL(20)-LDH MMM has a high CO2 permeability of ∼388 barrer at 30 °C, which is approximately 2.9 times that of pure Pebax, and the CO2/CH4 selectivity does not change significantly. Besides, the Pebax/IL(20)-LDH MMM exhibited a notable increase in CO2 permeability as the working temperature increased, ultimately attaining ∼576 barrer at 50 °C.
✓ 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）