LANGMUIR
·
2024
·
IF 3.7
Tianyun Zhang,Yanci Wang,Yu Li,Yuan Li,Xiangye Li,Peiyao Dou,Fen Ran
In order to alleviate the dendrite problem of zinc-ion batteries, a gel electrolyte is prepared by Maillard reactions occurring between hydrolyzed wool keratin and carboxymethyl cellulose under heating conditions. The prepared gel electrolyte with the addition of hydrolyzed wool keratin possesses good mechanical properties, and its maximum breaking strength, Young’s modulus, and elastic modulus are 58.7, 10.77 MPa, and 157.73 MJ m2, respectively, which are far superior to those of the pure carboxymethyl cellulose gel electrolyte. Because hydrolyzed wool keratin includes amino acids and polypeptides, the ionic conductivity of the prepared gel electrolyte is improved. More importantly, amino and carboxyl groups introduced by hydrolyzed wool keratin contribute to uniform deposition of zinc ions and ease dendrite growth. The assembled symmetric battery was stable for 600 h at a current density of 0.5 mA cm–2 with a capacity of 0.5 mAh cm–2. Combined with a NH4V4O10 cathode, a full battery provides a cycling stability of over 2000 h with a Coulomb efficiency of 98.02%.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2024
·
IF 5.8
Ke Yang,Kai Wu,Bo Zhang,Sheng Chu,Fangzhou Li,Mingfan Li,Jiajun Yu,Huiyan Zhang
Biomass is the only renewable carbon-containing resource, which could be converted into high-value liquid fuel via catalytic fast pyrolysis (CFP) using zeolite catalysts. The development of ZSM-5 synthesis technology based on low-cost raw materials is crucial for industrial-scale production of ZSM-5 zeolites. In this study, we report a solvent-free route for synthesizing ZSM-5 zeolites from two solid wastes: spent fluid catalytic cracking (sFCC) catalyst and rice husk ash (RHA). The effect of ZSM-5 zeolites derived from various raw materials (individual RHA, sFCC catalyst, and their combination) on the conversion of cellulose into aromatics are investigated in a fixed bed reactor. Cellulose catalytic pyrolysis using the zeolite derived from the combination of RHA and sFCC catalyst (R/F-Zeolite) demonstrates a significant enhancement in the production of aromatics compared to using individual raw materials. When mixing 25 % R/F-Zeolite with 75 % commercial ZSM-5, the total yield of BTX (benzene, toluene, and xylene) increases by 16 % compared to using individual commercial ZSM-5, with a 37 % and 17 % increase in the yield of benzene and toluene, respectively. Moreover, R/F-Zeolite has a better performance of coke resistance than commercial ZSM-5. This work offers a cost-effective solution for the industrial-scale synthesis of ZSM-5 zeolites to produce aromatic-rich biofuel, which also brings benefits in terms of waste disposal.
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RENEWABLE ENERGY
·
2024
·
IF 9
Xian Shi,Xinyi Xing,Wanni Liu,Mengya Ruan,Ying Guan,Gaojin Lyu,Hui Gao,Siquan Xu
The efficient catalytic conversion of cellulose to 5-hydroxymethylfurfural (HMF) can provide a valuable reference for the high-value utilization of biomass. In this work, a series of simple phosphate-doped hafnium oxide catalysts (x-P-HfO 2 ) were prepared, and their physicochemical properties were analyzed by ICP-OES, XRD, XPS, FTIR, SEM-EDX, N 2 adsorption-desorption isotherms, NH 3 -TPD and Py-FTIR characterizes. Detailed evaluation of the reaction conditions demonstrated the ideal catalytic performance of the x-P-HfO 2 catalysts, and the HMF yield from cellulose reached a satisfactory 61% in the water (NaCl) /tetrahydrofuran biphasic reaction system. Based on the captured intermediates and detected by-products, possible catalytic pathways are summarized. Meanwhile, the hydrothermal stability of the catalyst was also investigated, and the reason for its performance degradation after five cycles was determined to be the loss of useful Brønsted active sites. In addition, the effects of the phosphating and sulfating modification approaches on the catalyst activity were also compared, verifying that the introduction of phosphate is more conducive to the catalyst expressing high activity for the formation of HMF from cellulose.
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Gels
·
2024
·Vol. 10
·期 3
·210
·
IF 5
Sizhao Zhang,Kunming Lu,Yangbiao Hu,Guangyu Xu,Jing Wang,Yanrong Liao,Shuai Yu
The inherent characteristics of cellulose-derived aerogels, such as their natural abundance and environmental friendliness, make them highly interesting. However, its significant shrinkage before and after the supercritical drying procedure and low mechanical strength limit its potential application. Here, we propose a strategy to prepare cellulose diacetate aerogels (CDAAs) with low drying shrinkage, exceptional thermal insulation, and superior mechanical strength. The low drying shrinkage (radial drying shrinkage of 1.4%) of CDAAs is attributed to their relative strong networking skeletons, which are greatly formed by tert-butanol solvent exchange in exerting the interaction of reducing the surface tension force. In this case, CDAAs are eventually endowed with the low bulk density of 0.069 g cm−3as well. Additionally, as-prepared CDAAs possess an abundant three-dimensional networking structure whose pore size is concentrated in the diameter range of ~50 nm, and the result above is beneficial for improving the thermal insulation performance (thermal conductivity of 0.021 W m−1K−1at ambient environmental and pressure conditions). On the other hand, the optimal compressive stresses of CDAAs at 3% and 5% strain are 0.22 and 0.27 MPa respectively, indicating a mechanically well robustness. The above evidence demonstrates indeed the exceptional thermal insulation and superior compressive properties of CDAAs. This work may provide a new solution for developing a kind of high-performance cellulose-derived aerogel in the future.
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JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Ting Su,Xuefeng Mao,Zhiru Wang,Yuhang Pan,Bin Xu,Wenzhong Yang,Hui Xu
Antimony is a highly poisonous pollutant that needs to be removed from water to ensured safety. In this work, we have fabricated a novel adsorbent, the ferric-manganese oxide (FeMnO x ) nanoparticles embedded cellulose nanocrystal-based polymer hydrogel (FeMnO x @CNC- g -PAA/ q P4VP, denoted as FMO@CP q P), specifically engineered for the remediation of antimony-laden water. Comprehensive evaluations have been conducted to investigate the efficacy of the FMO@CP q P hydrogel in removal of antimony from water. The hydrogel exhibits superior affinity for antimony, with maximum adsorption capacities of 276.1 mg/g for Sb(III) and 286.8 mg/g for Sb(V). The adsorptive dynamics, governed by the kinetics and isotherm analyses, elucidate that the immobilization of both Sb(III) and Sb(V) is facilitated through a homogeneous and monolayer chemisorption mechanism. The hydrogel has a three-dimensional interconnected porous structure and exhibits good swelling behavior, which facilitates the rapid absorption of antimony ions by this high surface area hydrogel into the channels. Furthermore, various effects, including the oxidation and inner-sphere coordination mediated by FeMnO x NPs and the electrostatic attractions of the quaternized P4VP chains, promote the immobilization of antimony species. Owing to its high removal efficiency, stability and reusability, the FMO@CP q P hydrogel emerges as an exemplary candidate for the removal of antimony contaminants in water treatment processes.
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CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Liyao Dai,Jinsheng Sun,Kaihe Lv,Fengbao Liu,Yingrui Bai,Bo Liao,Dongqing Yang,Chaozheng Liu,Mei-Chun Li
The development of oil and gas from fractured reservoirs is hindered by reservoir complexity, wellbore instability, lost circulation, and formation fluid intrusion during drilling. Various plugging materials and strategies have been employed; however, physical plugging materials often suffer from mismatched particle and fracture sizes, while chemical plugging materials face challenge with low plugging strength as well as tedious operation conditions. In addition, achieving both high plugging effectiveness during use and superior degradability after service remains a challenge. Supramolecular polymer gels, with their high strength and dynamic tunability, present a promising solution. This study reports the synthesis of a supramolecular polymer gel using acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, divinylbenzene, polyvinyl alcohol, and TEMPO-oxidized cellulose nanofibers (CNFs) through in situ radical polymerization. Due to the formation of covalent bonding and multiple hydrogen bonding, as well as the strong reinforcement and acid degradation capacity of CNFs, the supramolecular polymer gel demonstrates high compressive strength (0.69 MPa at a strain of 75 %), good thermal resistance (120 °C for 30 day), excellent plugging effect (> 11 MPa), and high degradation capacity (~ 94 wt%). This work provides new insights for developing high-strength, high-degradation supramolecular polymer gel as temporary plugging materials, promoting the development of oil and gas from fracturing reservoirs more efficiently and safely.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yonghe Wang,Yulan Wang,Jing Guo,Fucheng Guan,Xinbin Ji,Minghan Li,Qiang Yang,Jianbin Sun,Shi Feng,Jing Tao
In scenarios of arterial bleeding, common hemostatic agents or dressings often fail due to the loss of active components, high blood loss, and high bleeding pressure. To overcome these challenges, we have developed a novel bio-based hemostatic membrane capable of rapid hemostasis under high pressure. A biomass hemostatic membrane with rapid hemostatic function under high pressure was prepared based on polyelectrolyte electrostatic self-assembly and a “concrete reinforcement” strategy. Hyaluronic acid (HA) was sprayed by airflow to form CSH hydrogel bubbles in the Chitosan (CS) solution. Then CSH hydrogel bubbles were deposited onto cellulose nonwoven (CN) by vacuum filtration, and the CSH composite membrane was obtained after drying. The hemostatic effect of several CSH composite membrane was evaluated in the analysis of venous bleeding in vitro (1.5 KPa). Among them, CS 1 HA 0.4 @CN had a small amount of blood loss, but the amount of blood loss was only about 0.29 g, the other samples did not show any blood loss. In vitro arterial bleeding analysis, CS 1 HA 0.2 @CN showed significant hemostasis in just 20 s and successfully stabilized the blood flow at 0.002 mL/s within 40 s. Despite being subjected to a high pressure of 96.235 KPa, the CSH composite membrane effectively maintains its hemostatic capability. Consequently, it is viewed as a promising solution for emergency arterial hemostasis.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Huiyang Bian,Dan Luo,Jieying Shi,Xuelian Zhou,Tingting Xu,Huining Xiao,Hongqi Dai,Tingting Li,Chen Huang,Arthur J. Ragauskas
Developing biomass-based food packaging materials could alleviate resource scarcity and environmental pollution. This study successfully fabricated cellulose nanofibrils-based packaging films synergistically reinforced by lignin and tea polyphenols for fruit preservation. Thanks to the abundant carboxyl and hydroxyl groups in modified lignin and tea polyphenol, the composite film delivered the highest tensile strength and Young’s modulus of 230.7 MPa and 11.9 GPa, respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of composite film were as low as 2.53 × 10 −11 g m −1 s −1 Pa −1 and 1.69 × 10 −16 cm m −2 s −1 Pa −1 , respectively, demonstrating excellent barrier performance. Furthermore, the composite film possessed remarkable antibacterial (100 % antibacterial activity against two types of bacteria), antioxidant (DPPH free radical scavenging activity of 90 %), and UV shielding properties (impressive UV shielding rate of 99.0 %). Strawberry preservation experiments showed that these composite films could significantly extend shelf life, owing to the excellent barrier and antimicrobial properties. Our research indicated that these composite films could be promising food packaging material compared with traditional plastic and showed great application potential in fruit preservation.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Junzheng Chen,Xikun Zhang,Xue Lv,Shurui Yi,Di Fang
In this study, the dispersion behavior of MoS₂ in ionic liquids (ILs) with varying alkyl chain lengths was the primary focus of investigation, followed by the design of a novel PAM/SMA/CMC/PDA@MoS 2 hydrogel. By optimizing the concentrations of CMC and PDA@MoS 2 , a bifunctional hydrogel with both sensing and catalytic functions was successfully developed. Mechanical tests revealed that the PAM/SMA/CMC 0.06 /0.09PDA@MoS 2 hydrogel exhibited exceptional mechanical properties, with stress (505.24 kPa), strain (2333.34 %), elastic modulus (20.17 kPa), and toughness (3990.97 kJ/m 3 ). Furthermore, the hydrogel demonstrated superior sensing performance, characterized by high sensitivity (GF = 7.67) and a rapid response time (148 ms) across a wide strain range. These properties enable precise monitoring of physiological movements, coupled with long-term cyclic stability, positioning it as a versatile material for sensors and electrodes. Subsequently, in situ stabilized silver nanoparticles (Ag NPs) were used as a template for the catalytic degradation of methylene blue (MB) using discarded human motion monitoring hydrogels. The degradation followed first-order kinetics (k = 0.54 min −1 at 25 °C) with 85 % efficiency sustained over 10 cycles, demonstrating significant stability and recyclability. This strategy integrates sensor recycling with Ag NPs based dye degradation, addressing environmental concerns and highlighting its potential in sustainable applications.
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CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Shaoyi Cao,Jingpeng Wang,Wenye Sun,Bang An,Mingcong Xu,Sha Luo,Chunhui Ma,Haipeng Yu,Zhijun Chen,Jian Li,Wei Li,Shouxin Liu
Cellulose nanocrystal (CNC) -based circularly polarized luminescent (CPL) materials, which are responsive to external stimuli, have attracted increasing attention in developing smart chiral photonic materials. In this study, chiral nematic bio-composite CNC films with right-handed (R-) CPL emission and tunable dissymmetry factors (g lum ) were prepared by encapsulating curcumin in chiral nematic CNC films via an evaporation-induced self-assembly strategy. The CPL active bio-composite CNC films exhibit multiple responsiveness to relative humidity (RH) and pH. It is noted that the pH response of the composite films is visualized, which is reflected in the variation of film colors, fluorescence, and CPL emission wavelengths. Additionally, with a hydrophobic treatment, the bio-composite CNC films exhibit enhanced water resistance and pH-responsive CPL in acid/base aqueous solutions. Based on the responsive circular polarization information, the bio-composite CNC films were developed as optical labels for multiple anti-counterfeiting applications. The reported environmentally friendly bio-composite CNC films provide a new reference for utilizing natural polysaccharides to build multi-mode responsive CPL materials.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Gege Cheng,Fajian Zeng,Xiuyu Liu,Qiuni Yang,Shizhen Wei,Qin Huang
Lignin-containing cellulose nanofiber (LCNF)-based hydrogels are promising eco-friendly biomaterials, yet the role of lignin in enhancing their adhesion and mechanics remains to be explored. Herein, quaternized lignin-containing cellulose nanofibers (QALCNFs) with varying lignin contents were synthesized from bagasse using a deep eutectic solvent (DES). The relationship between lignin content and the adhesion and mechanical properties of QALCNF hydrogels was systematically investigated. Results demonstrated that lignin in QALCNFs enhanced the hydrogel's gelation time, adhesion and mechanical properties through the provision of quinone/catechol groups, which undergo reversible free radical transformations. As the lignin content decreased, the nanofiber bundles gradually transitioned into more uniform nanofibers, forming a hydrogel with a hierarchical porous structure, superior adhesion, and mechanical properties. Conversely, insufficient lignin content weakened the hydrogel's performance by reducing the quinone/catechol content and decreasing hydrogel porosity. Consequently, QAMLCNF-H exhibited outstanding toughness (2400 J/m 2 ), adhesion strength (114.6 kPa), and high porosity (∼86 %), along with sustained drug release performance, effective antibacterial properties, and excellent cytocompatibility. This study provides a comprehensive understanding of how lignin content in QALCNFs influences hydrogel adhesion, mechanical properties, and drug release behavior, offering valuable insights for the development of high-performance LCNF-based hydrogel biomaterials.
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POLYMER COMPOSITES
·
2024
·Vol. 45
·期 12
·11447-11458
·
IF 4.8
Zhijie Li,Zhaoyan Zhang,Huifan Cheng,Shaoping Qian,Yuenong Liu
Polypropylene carbonate (PPC) is a biodegradable polyester with excellent toughness and ductility that may be employed as carbon fixation materials in biomedicine, agriculture, and environmental engineering. However, relatively lower strength and poor dimensional stability hinder its extensive application. In this study, nanofibrillated cellulose (NFC) and chitosan (CS) were introduced as biobased reinforcements into PPC without compromising its biodegradability. Notably, the composites not only had improved strength but also enhanced toughness after the addition of NFC and CS. The tensile strength and Young's modulus were increased by 25% and 58% in the composites with 3 wt% NFC and 2 wt% CS additions compared to pure PPC. Interestingly, the PPC/NFC/CS composites exhibited superior dimensional stability and antibacterial property. Upon the addition of 3 wt% NFC and 2 wt% CS, the composites took 3 s recovering from 0° to 137°. Additionally, NFC and CS contribute to the hydrophilicity of PPC composites. These findings offer valuable insights into experimental data and preparation techniques to the utilization of PPC in engineering fields. Highlights The developed composites achieved maximum tensile strength (13.5 MPa). The composites with 2 wt% chitosan had effective antibacterial properties. All reinforced composites showed excellent dimensional stability. Nanofibrillated cellulose and chitosan had toughening and enhancing effect. The developed composites showed good hydrophilicity.
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