JOURNAL OF MOLECULAR LIQUIDS
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2024
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IF 5.3
Li Fu,Guoman Lin,Yu Chen,Qiuxiang Zhou,Wenlong Feng,Jiaqi Wang,Fengjiao Liu,Jiahe Chen,Jingjing Guo
Deep eutectic solvent (DES) has become a potential protein extractant as its good biocompatibility, environmental friendliness and accessibility. In this study, two types of DESs, ferric chloride hexahydrate: oxalic acid (FeCl 3 ·6H 2 O: H 2 C 2 O 4 ) and choline chloride: zinc chloride (ChCl: ZnCl 2 ), were prepared. The interactions between these two types of DESs and bovine serum albumin (BSA) were investigated by utilizing spectroscopic and electrochemical methods. It was found that both FeCl 3 ·6H 2 O: H 2 C 2 O 4 and ChCl: ZnCl 2 are able to form complexes with BSA by a relatively high affinity. During the process, no significant change in BSA conformation was observed. The binding ratios of BSA in the FeCl 3 ·6H 2 O: H 2 C 2 O 4 and ChCl: ZnCl 2 systems are up to 98.59 % and 98.14 %, respectively, indicating that the two DESs are both promising extractants for BSA. The interactions between the DESs and BSA are mainly hydrogen bond and van der Waals force, which are strong enough to extract BSA but not too strong for regeneration, making the DESs more applicable in the industry. Moreover, it was found that the binding ratio of BSA in the FeCl 3 ·6H 2 O: H 2 C 2 O 4 -BSA system remains above 91.7 % in the temperature range of 298–313 K, illustrating the potential of FeCl 3 ·6H 2 O: H 2 C 2 O 4 to be used in BSA extraction under a wider range of temperature. In contrast, ChCl: ZnCl 2 will be better used under lower temperatures.
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Journal of Environmental Chemical Engineering
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2024
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IF 7.4
Wen Leng,Jiaopeng Lai,Cao Yang,Yanpeng Zhu,Jian Wang,Lihui Yang,Sihao Lv
ABSTRACT Interface engineering is an effective strategy for improving the catalytic activity of electrocatalysts. Herein, an enhanced binder-free Ti 4 O 7 electrode doped with waste MOF-recycled N-doped carbon polyhedrons (Dr-CN) was developed and denoted as Dr-CN@Ti 4 O 7 . The chemical-bond formation at the interface of Ti 4 O 7 and Dr-CN led to a significant acceleration of charge transfer and higher •OH yield at 1.55-2.75 times rate in comparison with pristine Ti 4 O 7 . At 0.5%Dr-CN@Ti 4 O 7 electrode, the oxidation rate of tetracycline (TCH) was about 3 times that of pristine Ti 4 O 7 , especially when doped with 2 wt% Dr-CN, the kinetic rate can be comparable to that of BDD electrode. Furthermore, the 0.5%Dr-CN@Ti 4 O 7 anode exhibited desirable stability and durability in consecutive 20 cycle tests and was shown to effectively mineralize refractory organic matters in actual livestock and coking wastewater. Energy consumption for TCH removal by 0.5%Dr-CN@Ti 4 O 7 electrode was calculated as 3.02 kWh m -3 , with a 73.5-77.6% reduction compared to some previous electrodes. These results suggested that the interface chemical-bonded engineering strategy via doping MOF-derived carbon can effectively improve the Magnéli-phase Ti 4 O 7 electrode with satisfying electrochemical reactivity and stability.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
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2024
·
IF 3.5
Mengmeng Yang,Yang Ding,Zhaofeng Chen,Qiong Wu,Lihao Liu,Tianlong Liu,Manna Li,Kai Xu,Lu Le,Lixia Yang
As promising candidates for widespread application, advanced ceramic fiber mats with robust mechanical properties are urgently needed. However, the brittleness, fatigue failure, and large density of ceramic fiber pose significant obstacles to its practical application. Herein, a novel SiO 2 aerogel/ZrO 2 composite nanofibrous membrane (SZCNFM) with excellent flexibility was prepared by introducing SiO 2 aerogel nanoparticles into ZrO 2 nanofiber via simple co-electrospinning. The developed tetragonal zirconia phase without changing up to 1200°C endows SZCNFM material with excellent thermal stability. Furthermore, the as-prepared membranes exhibit fatigue resistance ability which can maintain 98% of the original stress after 100 buckling cycle tests. The addition of mesoporous structure aerogel reduces the heat transfer of the nanofibrous membrane, giving its low thermal conductivity (30 mW/m/K) and low-frequency sound absorption (noise reduction coefficient of 0.52). Combined with the high-temperature resistance, low thermal conductivity and excellent sound-absorption ability make it a promising material for heat insulation and acoustic absorption.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yadan Song,Songsong Zhi,Hongju Wang,Qian Yang,Jing Guo,Can Yang,Kai Jiang,Dapeng Wu
A solid-state pulsed laser technique was developed to in situ grow arbitrary immobilized catalysts (Fe 3 O 4 , CeO 2 , WO 3 etc.) on the inner surface of quartz tube with robust adhering strength. In a case study, anatase/rutile hetero-phase TiO 2 film was deposited to serve as immobilized photocatalysts for the effective removal of antibiotics from aqueous environment. The X-ray absorption spectroscopy, low temperature electron paramagnetic resonance and the density functional theory simulation directly confirm a defect-assisted type-II band alignment was established to facilitate the charge transfer at the hereto-interphase. In addition, the oxygen vacancy enriched anatase phase with greater binding energy towards the dissolved oxygen facilitated the O 2 – generation. Meanwhile, the rutile phase enriched with Ti 3+ could effectively activate the antibiotics to promote the direct h + mediated oxidation. Such integration of unique atomic vacancies prevent defects from becoming electron-hole recombination centers and consequently extend the lifetime of the photoexcited charge carrier. The degradation mechanism of oxytetracycline was thoroughly examined by ultra-high resolution electrospray time-of-flight mass spectrometry and Fukui function, while the ecological structure–activity relationships program assessed the toxicity of contaminant to the environment. Milewhile, a continuous water treatment apparatus employing the catalytic tubes as reactors was established and demonstrated a ∼ 95 % OTC degradation under the natural sunlight adopting river water as the background. The experimental studies also claimed that ∼ 90 % of the initial activity could be retained after 100 cycles reuse, which permits their great potential for the applicational scenarios.
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LANGMUIR
·
2024
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IF 3.7
Ze Qiu,Yingzhangyang Liu,Wencai Cheng,Congcong Ding
In this research, we focus our attention on the leaching peculiarity of uranium-containing Mg–Al layered double hydroxide (LDH) which is one kind of waste sediment in uranium tailings, generated by the alkalinization of uranyl raffinate. The effect of inorganic (CO32–, SO42–, PO43–) and organic (C2O42–, C6H6O72–, C6H16O24P62–) anions were investigated. Atomic force microscopy result showed that the thickness of CO32–-LDH increased to 8.6 nm compared to original LDH whose thickness was 6.7 nm. Compared with the control sample (5.58 μm), the grain size with C6H16O24P62– anion grew to 7.04 μm. A large amount of CO32– can stay in LDH, up to 1.78 mol percent, while the C6H16O24P62– anion was only 0.41 mol percent. X-ray diffraction results showed that the anions could change the crystal structure of LDH, especially the C6H18O24P6 anion, and theoretical calculation also conformed this result. The leaching tests showed that the introduction of anions improved the leaching efficiency of UO22+ from LDH. The introduction of anions destroyed the super buffer property of LDH. Theoretical calculation results indicated that the anions could grab UO22+ and help the UO22+ escape from the LDH. This research gave guidance for long-term disposal of uranium-containing tailings.
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PubMed
高影响因子
Food Chemistry-X
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2024
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IF 6.5
Alsadig Yahya,Abdeen Elkhedir,Mamoun A. Homaida,Yassin Haran,Ikhlas Galal-Eldin,Yassin Taha,Ezzalden Saleh
Potatoes are an important food crop worldwide and are rich in essential nutrients. However, cooking can reduce their nutritional value and alter their texture. This study aimed to investigate the impact of pretreating potato slices with lemon juice. The slices were immersed in 5% lemon juice solution for 3 h, rinsed with distilled water for another 3 h, then cooked at 100°C for 20 min. Findings revealed that lemon juice pretreatment (LJP) notably improved the texture, mouthfeel, and overall acceptability of the cooked potato slices of different sizes (CPS-Ds). Additionally, LJP significantly increased vitamin C and total phenolic contents, slightly decreased pH levels, and preserved the desired color of CPS-Ds. Consumer sensory evaluations also indicated a positive response to LJP samples, suggesting its potential application in the food industry. The study confirmed that LJP is an effective, sustainable, consumer-friendly, and cost-efficient technique for improving the quality of cooked potato slices.
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PubMed
高影响因子
Crystals
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2025
·Vol. 15
·期 2
·158
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IF 2.4
Zhennan Yao,Enza Migliore,Massimiliano Galluzzi,Jingze Liu
Urbanization in hot and humid regions such as southern China has increased the demand for comfortable indoor environments. In order to design a material for efficient passive indoor humidity regulation, this study investigates a composite material that combines the hygroscopic properties of salt and the adsorption capacity of diatomaceous earth (DE). Firstly, we prepared DE and boehmite into moisture-absorbing porous materials. Then, the initial DE-based sample was innovatively doped with SiO2nanomaterials and loaded with LiCl to enhance the humidity regulation ability of the composite, especially in the adsorption and desorption ability of water vapour. The microstructure and phase composition of the composite samples were analysed, and we observed an increase in porosity, filling performance and capillary condensation upon the introduction of SiO2nanoparticles. The hygroscopic salt loaded into the pores can absorb more water when exposed to the ambient humidity. This synergic effect can effectively improve the hygroscopic performance of the composite material while maintaining the stability of the physical and chemical properties. The optimized samples showed a moisture absorption rate of 28% in high-humidity environments, meeting moisture buffer value evaluation standards. The study’s findings lay the foundation for the future integration of these materials through advanced manufacturing technologies.
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CHEMICAL PHYSICS LETTERS
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2024
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IF 2.8
Aihu Feng,Jieyan Dai,Xu Gao,Yun Yu
Surfactant-templating strategy is an effective method to construct the hierarchical zeolite with controllable mesopores. In this work, the hierarchical NaY zeolites with the mesoporous size of ∼ 2.6 nm and ∼ 3.5 nm are obtained via the chemical etching and surfactant-templating process, and the formation mechanism of mesopores with controllable pore size is elucidated. The saturated adsorption capacity of toluene for H 2 C 2 O 4 -etched NaY-C10 and NH 4 HF 2 -etched NaY-C16 is 208 mg·g −1 and 215 mg·g −1 , respectively. A new type of hierarchical NaY zeolite with excellent toluene adsorption properties is developed.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Chenyuan Zhang,Qiang Liu,Hailong He,Xinyu Guo,Shuang Yang,Lei Zhang,Lei Wang
The use of deep eutectic solvents (DESs) has been demonstrated as an effective method for treating heavy metal-enriched biomass. However, the variations in the mechanisms of biomass deconstruction observed across different types of DESs, coupled with the challenges associated with ’biomass recalcitrance’, have made it difficult to design the efficient DESs. This study aimed to investigate the impact of different types of DESs on the removal efficiency of Cd from phytoremediation biomass and to understand the mechanism of Cd during the treatment using chemical quantitative analysis, micro-imaging and micro-spectroscopy technologies. The findings revealed that acidic DES exhibited superior removal efficiency compared to neutral and alkaline DES. Following treatment with ChCl:LA at 90 ℃ for 1 h, only 7.4% of the original Cd content remained in pulp. Moreover, an increase in the treatment temperature from 25 ℃ to 120 ℃ resulted in a reduction in residual Cd in the pulp from 60.5% to 6.6%. Multiscale analysis demonstrated that Cd in poplar primarily accumulates in the compound middle lamellae and secondary wall. During pretreatment, a portion of the Cd initially dispersed into the liquid phase alongside the dissolution of components such as hemicellulose. The subsequent deformation of the cell wall facilitated the penetration of DES, which enabled the formation of complexes between the heavy metals and the solvent through coordination and proton exchange. These complexes were then transferred to the liquid phase. The findings provide valuable scientific insights for the design of solvents for the safe disposal of phytoremediation biomass in a sustainable way.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Shaoning Wang,Xinyu Cheng,Enqing Zhu,Tianqi Li,Lili Zhang,Yimin Fan,Zhiguo Wang
3D-printable information-storage expansion materials can integrate multilevel optical information within one carrier, which requires higher requirements for their mechanical properties. Cellulose nanofiber (CNF) is an attractive candidate for enhancing the mechanical properties of composite materials. However, CNF composites generally increase stress at the expense of strain by physical compounding of CNF. Herein, a physical and chemical double-cross-linked (DC) network of cellulose nanofiber/poly(deep eutectic solvent)(CNF/PDES) conductive elastomers are prepared by introducing glycidyl methacrylate (GMA) through nanofibrillation, derivatization modification, and in-situ polymerization in the oxalic acid/choline chloride (OA/ChCl) DES system. The carboxylation modification of OA-CNF could provide active cross-linking sites, and derivatization modification of GMA was shortened from 4 to 0.5 h under the catalysis of ZnCl 2 . DC OA-CNF/PDES conductive elastomers were rapid polymerization within 30 s and significantly improved the stress and strain simultaneously (stress: 252.51 kPa to 417.53 kPa, strain: 262.29% to 419.44%), and excellent 3D printable accuracy and formability for information encryption, and information-storage expansion. Subsequently, we systematically compared the feasibility and difference of OA/ChCl, lactic acid/choline chloride (LA/ChCl), maleic acid/choline chloride (MA/ChCl), and propanedioic acid/choline chloride (PA/ChCl), and provide a promising route for 3D-printable high-performance flexible sensors and information-storage expansion under DES systems.
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ACS Sustainable Chemistry & Engineering
·
2025
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IF 7.3
Mingqiang Cheng,Juanjian Ru,Qibo Zhang,Yixin Hua,Cunying Xu,Yinghua Zhang,Ding Wang
The boom of the lithium-ion battery (LIB) industry is dialectically correlated with a scarcity of raw resources, particularly lithium (Li), so the recovery of critical metals from spent LIBs has become very essential for resource sustainability. Here, a new strategy for the one-step direct recovery of Li from spent LIB cathode active materials via water-based deep eutectic solvents (DESs) is put forward, together with the recycling and reuse of the DES. Without any reagent and pretreatment, Li2C2O4 can be directly and preferentially precipitated from the H2O-based choline chloride-oxalic acid (ChCl-OA) DES, and CoC2O4·2H2O is obtained easily from the residual Co-rich leachate by adding H2O. The leaching efficiencies are nearly 100% for Li and Co, and the recovery efficiencies reach 91.2 and 94.6%, respectively. The recovery mechanism of Li and Co is clarified based on the coordination-guided design between Li+ and C2O42–, which enables the precise separation of Li and Co. It is crucial to strictly control the H2O content in the DES, which is always being ignored, serving as a diluent and complexant, avoiding the solidification of the DES, and realizing the preferential precipitation of Li. The optimization of the leaching and recovery processes is comprehensively investigated as well as the middle-sized experiments in the 2 L leaching level, and a leaching kinetic model is established. The strategy proposed here offers a promising possibility for the direct and preferential recovery of Li from spent LIBs, promoting the development of high economic efficiency and environmental protection of the battery recycling market.
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APPLIED SURFACE SCIENCE
·
2024
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IF 6.3
Zhuangzhuang Xiong,Wenhui Zhang,Siyuan jin,Ruizhi Wu,Fuqiu Ma,Xingwei Wang,Guixiang Wang
In recent years, metal–organic framework materials (MOFs) have garnered significant attention in the field of metal corrosion protection. In this study, novel Co-MOFs were synthesized using cobalt nitrate as the metal source and 4,4′-bipyridine as the organic ligand. A one-step solvothermal method was employed to synthesize a black MOFs/LDH composite coating, integrating corrosion resistance, friction reduction, and hydrophobicity into a single coating. The successful reaction between metal ions and organic ligands was confirmed through FTIR, FE-SEM, EDX, XRD, and XPS characterization tests. Cross-sectional SEM and EDX analyses demonstrated the successful synthesis of the coating. Electrochemical tests indicated that after 14 days of immersion in 3.5 wt% NaCl, the composite coating exhibited the lowest corrosion current of 2.23 × 10 −9 A∙cm −2 , outperforming the aluminum substrate (5.99 × 10 −6 A∙cm −2 ) and anodized aluminum (7.08 × 10 −7 A∙cm −2 ). Hydrophobicity tests showed that without additional modification with low surface energy substances, the composite coating had a contact angle of 154.7°, demonstrating excellent hydrophobicity. Tribological tests revealed that the composite coating exhibited superior tribological performance, with a friction coefficient of 0.3.
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