APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Rui Hu,Chenghao Yu,Xian Luo
Ice accretion poses a severe threat to transportation, power transmission, and aerospace industries under low-temperature and high-humidity conditions. Although superhydrophobic surfaces can delay ice formation, their micro/nanostructures tend to induce heterogeneous nucleation and easily lose anti-icing ability under extreme conditions. Slippery liquid-infused porous surfaces (SLIPS) significantly reduce ice adhesion and suppress heterogeneous nucleation by introducing a lubricating layer, demonstrating superior anti-/de-icing potential. However, conventional SLIPS suffer from lubricant depletion and insufficient oil-locking capacity, and single-function SLIPS cannot meet the demand of intelligent anti-icing. Herein, we report a novel photothermal SLIPS (FZPC/SiO 2 -SO) with unique in-situ ZIF-67 growth on carbon fibers (CF) via polydopamine (PDA) assistance and fluorosilane coordination grafting, which constructs hierarchical porous architecture with dual oil-storage reservoirs for synergistic anti-icing and de-icing. The wettability, oil-storage capacity, passive anti-icing and active de-icing performances were systematically investigated. Results reveal that the coating achieves optimal comprehensive performance at a FZPC:SiO 2 mass ratio of 1:1 with 60 wt% SO infusion, exhibiting an ultralow ice adhesion strength of 15.8 kPa, prolonged freezing delay of 593 s, and maintained low ice adhesion (≤24.4 kPa) after 30 de-icing cycles, showing superior oil retention and durability compared with traditional CF-based SLIPS. Photothermal tests demonstrate rapid surface heating to 67 °C within 2 min under 1 sun irradiation, enabling prompt ice melting (within 48 s). This in-situ MOF-modified photothermal SLIPS breaks through the bottlenecks of lubricant loss and single function in conventional SLIPS, providing a novel strategy for developing highly stable and multifunctional integrated lubricant anti-icing coatings.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Guangye Ge,Lijuan Wu,Fenglan Zhang,Tianyi Wang,Lei Han,Xiaoying Kong,Jinsheng Shi
In recent years, photodynamic therapy (PDT) or chemodynamic therapy (CDT) based on the antimicrobial property or anti-biofilm property of reactive oxygen species (ROS) have been widely recognized for their low susceptibility to microbial resistance. However, due to the complication of the three-dimensional structure of the biofilm at the wound site and the high quenching rate of common ROS, the treatment with traditional ROS could not achieve satisfactory wound healing effects. Here, Na 2 S 2 O 8 @ZIF-67/GOx nanoparticles (NZG NPs) were prepared as a new high-toxic ROS nanogenerator for application of biofilm-infecting wound healing with the assistance of glucose oxidase (GOx) for amplified CDT and immune activation. When the NZG NPs entered the biofilm, Co-based metal organic frame (ZIF-67) ruptured in the acidic microenvironment, which induced the release of GOx and the production of gluconic acid and H 2 O 2 , further promoting the decrease of pH of the biofilm microenvironment and in turn accelerating the cleavage of ZIF-67 and the release of Na 2 S 2 O 8 . Then, S 2 O 8 2− could gradually transformed into high-toxic sulfate radical ( SO 4 − ), part of which further produced OH in situ with H 2 O, thereby inhibiting the proliferation of bacteria and biofilms. Interestingly, these two types of ROS not only caused direct damage to the biofilm, but also activated the immune system of the wound site as well as the body more effectively, which also played an indirect role in promoting biofilm destruction and wound healing. In vitro and in vivo results showed that, as a new high-toxic ROS nanogenerator, the NZG NPs supply amplified chemodynamic therapy and immune activation to destroy biofilms, but also achieve effective wound healing without causing bacterial tolerance, which provides a new strategy for the development of biofilm-infecting wound healing.
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PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Gangsheng Zhang,Jianyang Gao,Jing Wang,Haifeng Lin,Jixiang Xu,Lei Wang
A N-doped carbon-wrapped Co 9 S 8 catalyst (N-C/Co 9 S 8 ) was prepared in this work by pyrolysis sulfurized-ZIF-67 and melamine mixture. The prepared catalyst was used to degrade tetracycline (TC) with peroxymonosulfate (PMS) as oxidant. The optimized catalyst could remove 96.8 % TC in 15 min with a rate constant of 0.196 min –1 . The degradation mechanism, intermediates, and possible pathway were discussed. It was found that pyridinic N, Co-N, Co species, S 2– , C-S-C, and C-SO x were active sites to activate PMS. The N-doped carbon (N-C) could facilitate electron transfer . The surface-bound ·OH, SO 4 •− , and ⋅O 2 − radicals, especially 1 O 2 and electron transfer mechanism contributed to TC degradation . The effects of solution pH, inorganic ions and humic acid on TC degradation were discussed. This study might prompt the development of other ZIF-67-derived sulfides for environmental remediation.
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Journal of Energy Storage
·
2023
·
IF 9.4
Xin Xu,Shang Wu,Yang Liu,Chaoyang Liu,Xin Sun,Shuo Tian,Lan Wu,Yuzhi Sun,Zhichao Wang,Quanlu Yang
The tubular microsphere structure is an effective structure for asymmetric supercapacitors due to its high specific surface area and porosity. It can slow down the volume shrinkage caused by redox process. In this paper, tubular-like NiMoO 4 ·xH 2 O microspheres were designed to reach a high specific capacity. The NiMoO 4 ·xH 2 O was prepared by hydrothermal method and subsequent annealing treatment showed a tubular microsphere structure with many particles uniformly distributed. And its specific capacity is 943 F g −1 at 1 A·g −1 and capacity retention is 73.4 % after 3000 cycles. The Bi 2 S 3 /C was selected as negative material to build an asymmetric supercapacitor (battery-type device). It exhibited an impressive specific capacity (419 F g −1 at 1 A g −1 ). It was worth noting that the battery-type devices built with NiMoO 4 ·xH 2 O and Bi 2 S 3 /C can achieve a specific energy of 27.1 Wh kg −1 at 2456.9 W kg −1 and capacity retention of 69.2 % after 5000 cycles. It was shown that NiMoO 4 -xH 2 O and Bi 2 S 3 /C as electrode materials have great potential and can enhance the energy storage application of supercapacitors.
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高影响因子
FUEL
·
2023
·
IF 7.4
Qi Rong,Wenkai Huang,Fuhua Xu,Yanlan Wang,Changlong Wang,Xiang Liu
In spite of significant developments are accomplished in the exploration of H 2 and O 2 evolution upon water electrolysis/photolysis, this remains a challenge to design and develop ideal catalytic systems for this reaction and to isolate H 2 from H 2 -O 2 mixture with membranes. Herein, a series of ZIF-67-supported transition metal nanoparticles (TMNPs/ZIF-67), including Pt, Ir, Pd, Rh, Au and Ag, via immobilization of ultrafine TMNPs at the surface of ZIF-67, have been designed and developed for the selective H 2 generation from NH 3 BH 3 hydrolysis and O 2 evolution upon H 2 O 2 decomposition. In particular, the optimized nanocatalyst Pt/ZIF-67 presents the super-high catalytic property in the both H 2 evolution upon NH 3 BH 3 hydrolysis (689 mol(H 2 )·mol Pt -1 ·min −1 ) and O 2 evolution upon H 2 O 2 decomposition (979 mol(O 2 )·mol Pt -1 ·min −1) at 30 °C. Importantly, the selective “on–off” control for demand-based H 2 generation from NH 3 BH 3 hydrolysis was successfully realized by Zn 2+ /EDTA-2Na system. This highly efficient Pt/ZIF-67 proposed a new method for the promising potential application of ammonia borane and hydrogen peroxide as an economic and safe H 2 resp. O 2 carrier for fuel cell.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
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IF 9.136
Yuhan Long,Songrong Li,Peizhen Yang,Xi Chen,Wenhao Liu,Xuesong Zhan,Cheng Xue,Dongfang Liu,Wenli Huang
MOF-derived metal-carbon composite catalyst was an alternative high-efficient catalyst for activating peroxymonosulfate (PMS). In this study, a novel cobalt-carbon-nitrogen doped composite catalyst with honeycomb porous structure (Co-HPNC) was obtained through a simple strategy consisting of three steps: self-growth of ZIF-67 on the SiO 2 core, pyrolysis, and NaOH etching away SiO 2 core. The Co-HPNC exhibited an outstanding catalytic performance (98.1% in 10 min) to activate PMS for acid orange 7 (AO7) degradation. The observed reaction kinetic constant (0.4319 min −1 ) was 2.64 times superior to that of the unmodified Co/NC catalysis system (0.1636 min −1 ). In the meantime, the catalyst demonstrated a high PMS activation capacity over a wide pH range of 3–11 and strong adaptability to the high concentration of inorganic anions (Cl - , SO 4 2- , and CO 3 2– ). After being recycled three times, the removal efficiency could still reach 92.7% in 25 min. The quenching tests and EPR spectrum illustrated the existence of radical and non-radical pathways, in which singlet oxygen was dominant during the degradation process. It was hypothesized that Co(0)/Co(Ⅱ)/Co(Ⅲ), pyridinic-N and pyrrolic-N contributed to the generation of hydroxyl and sulfate radicals, while C=O functional group and graphitic-N were catalytic sites for singlet oxygen. Finally, the radical electrophilic attacking sites of AO7 were calculated by the density functional theory (DFT), and the degradation routes of AO7 were speculated by GC–MS. The toxicity test illustrated that the Co-HPNC/PMS system was an environmental-friendly technology for AO7 degradation. The prepared Co-HPNC with a unique honeycomb porous structure presents a novel synthesis route for MOF-derived catalyst applied in the PMS activation system for wastewater treatment.
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Journal of Environmental Sciences
·
2022
·
IF 6.796
Jiacheng Zhou,Hao Zhang,Tianying Xie,Ye Liu,Qicheng Shen,Jie Yang,Limei Cao,Ji Yang
The stronger coordination ability of mercury ions with organic ligands than the metal ions in metal organic framework (MOFs) provides an accessible way to separate mercury ions from solution using specific MOFs. In this study, a Co-based MOF (ZIF-67, Co(mIM) 2 ) was synthesized. It did not introduce specific functional groups, such as -SH and -NH 2 , into its structure through complicated steps. It separate Hg 2+ from wastewater with a new strategy, which utilized the stronger coordination ability of Hg 2+ with the nitrogen atom on the imidazole ring of the organic ligand than the Co 2+ ions. Hg 2+ replaced Co 2+ nodes from ZIF-67 and formed a more stable precipitate with mIM. The experimental results showed that this new strategy was efficient. ZIF-67 exhibited Hg 2+ adsorption capacity of 1740 mg/g, much higher than the known MOFs sorbents . mIMs is the reaction center and ZIF-67 can improve its utilization. The sample color faded from purple to white due to the loss of cobalt ion. It is a great feature of ZIF-67 that allows users to judge whether the sorbent is deactivated intuitively. ZIF-67 can be sustainable recycled by adding organic ligands to the solution after treatment due to its simple synthesis method at room temperature. It's a high-efficient and sustainable sorbent for Hg 2+ separation from wastewater.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Qian Luo,Xiaomin Qian,Xiaona Mi,Yifeng Tu
A new type of immunosensor was prepared by using a gold nanoparticles/aminozeolitic imidazolate framework-67 nanocomposite (AuNPs/ZIF-67) as the sensing matrix and luminol as the signaling probe to detect the heart failure biomarker N -terminal probrain natriuretic peptide (NT-proBNP). The hybrid nanocomposite was deposited on the surface of indium tin oxide (ITO)-coated glass via the linkage of 3-aminopropyltrimethoxysilane (APTMS); thereafter, the NT-proBNP antibody was immobilized to endow biological specificity, and bovine serum albumin was used to block residual active sites. The resultant sensor has an excellent response when NT-proBNP was attached to the antibody via immunoreaction; here, the output signal was reduced because of the depressed mass transportation of the electrochemiluminescence (ECL) probe and electron transference. The resultant ECL immunosensor displayed a broad linear range from 10 pg/mL to 50 ng/mL, and the low detection limit was 0.74 pg/mL. The ECL immunosensor also has good specificity, stability and reproducibility and can be used to detect NT-proBNP in real blood samples.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
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IF 6.371
Yu Liu,Shuai Yang,Xinyu You,Linlin Qin,Yiming Qin,Wenwen Zhang,Wenyan Liang
Electrocatalytic hydrogenation (ECH) has been used as a novel approach for the synthesis of organic compounds. Hence, ZIF-67 was selected as a precursor in this study to synthesize a series of electrodes. The ECH effects were assessed on pyridine and diazines. The results showed a significant influence of carbonization temperature and time on the electrocatalyst activity. A temperature of 400 °C was found not high enough for the synthesis of the electrocatalysts, and a long time of 4 h at 800 °C resulted in damage to the spatial structure of the electrocatalyst. The optimal electrocatalyst was obtained under 800 °C and 2 h (Co/NC-800–2). The polyhedral Co/NC-800–2 (20–200 nm) had the N-doped graphitic-carbon shell with embedded Co/CoN/Co 3 O 4 nanoparticles . The onset potential and overpotential (at 10 mA cm −2 ) were estimated to respectively 64 and 155 mV versus hydrogen evolution reaction (HER), with a Tafel value of 62 mV dec −1 . The ECH on pyridine and diazines revealed a positive correlation between ECH effect and HER activity. Co/NC-800–2 possessed excellent ECH activity toward pyridine and pyrazine at − 0.3 V (vs. RHE). N–Co, pyridinic-N, and graphitic-N acted as active sites during electrocatalysis . The N-doped graphitic-carbon promoted the charge transfer during ECH processes.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Yuan Chen,Hao Guo,Fan Yang,Ning Wu,Junye Zhang,Liping Peng,Bingqing Liu,Zhilan Pan,Wu Yang
A metal porous carbon (Ni@NC) supported nickel/cobalt layered double hydroxide (NiCo-LDH) (Ni@NC@NiCo-LDH) with a cauliflower morphology was synthesized by a successive double template method . At first a nickel metal-organic framework (Ni-MOF) was prepared and used as a sacrifice template to produce metal porous carbon (Ni@NC). Then the prepared conductive porous carbon material was exploited as a substrate for in-situ growing of ZIF-67 on its surface. Lastly the obtained Ni@NC@ZIF-67 was further used as a sacrifice template to prepare the final electrode material Ni@NC@NiCo-LDH by Ni 2+ etching and co-precipitation. The cooperation of Ni@NC with excellent conductivity and NiCo-LDH with superior pseudocapacitive property yielded a synergistic effect , which effectively improved the electrochemical performance of the resulted electrode material. And the special flower morphology exposed more redox active sites and provided proper charge transport path for enhanced electrochemical performance. The prepared Ni@NC@NiCo-LDH exhibited a high specific capacitance of 1761.8 F·g −1 at the current density of 1 A·g −1 . The assembled Ni@NC@NiCo-LDH//AC asymmetric supercapacitor also displayed an acceptable energy density (39.27 Wh·kg −1 at the power density of 757.21 W·kg −1 ) and ultrahigh cycling stability (94.74% capacitance retention after 25000 cycles at 10 A g −1 ).
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
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IF 4.539
Xiaoxun Liu,Jilin Zhang,Yi Cheng,Xiaoya Zhao,Zi Dai,Guixia Liu
The adsorption of organic dyes by sorbents is one of the effective ways to resolve the problem of dye wastewater treatment . However, the limited adsorption capacity of adsorbents has always been a crucial factor that plagues the development and utilization of adsorbents. Herein, aiming at efficient adsorption for crystal violet (CV), polyacrylic acid (PAA) was incorporated into zeolitic imidazoline frameworks (ZIF-67) through an easy and environmentally friendly aqueous phase synthesis process at room temperature to synthesize adsorbent ZIF-67-PAA. Compared to pure ZIF-67, the obtained adsorbent ZIF-67-PAA showed excellent adsorption performance and the maximum adsorption capacity of CV can reach 1606 mg g −1 . The adsorption process is spontaneous and conformed to the Langmuir isotherm model and the pseudo-second-order kinetic model . The results show that the prepared ZIF-67-PAA is a potential and efficient adsorbent for CV removal.
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CELLULOSE
·
2021
·Vol. 28
·期 6
·3585-3598
·
IF 5.044
Zhang Sufeng,Zhao Mengke,Li Hao,Hou Chen,Du Min
In recent years, cobalt-based metal–organic frameworks (MOFs) have been used as catalytic materials to degrade organic contaminants in sulfate radical-based advanced oxidation processes (SR-AOPs). However, separating and recovering granular MOFs from the reaction system is difficult. Loading MOFs on the host material is currently the most effective way to promote their recyclability. Most reported aerogel materials are characterized by excessively long preparation and drying cycles. Considering this, herein, we report an in situ grown method to fabricate a ZIF-67/cellulose hybrid membrane, which was used as a catalyst for activating peroxymonosulfate to generate \({\text{SO}}_{4}^{ - }\cdot\) and · OH, resulting in the contaminants degradation. The catalytic results showed that the hybrid membrane/PMS system could degrade the methylene blue and rhodamine B within 1 min. In addition, the separation and recovery problems were solved. The ZIF-67/cellulose hybrid membrane with outstanding degradation of contaminants expands the application of MOFs/cellulose hybrid materials for wastewater purification via SR-AOPs. Graphic abstract
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高影响因子
危险品化学品经营许可证（带存储）