ACS Nano
·
2025
·
IF 16
Haodong Zhang,Xiaotang Gan,Zhuning Wang,Mengyi Tao,Jinping Zhou
The growth of Zn dendrites and interfacial side reactions are two critical challenges impeding the commercial application of aqueous zinc batteries (AZBs). The amphoteric electrolyte additive is considered a convenient and efficient strategy to stabilize the Zn anode. However, most studies overlook the critical impacts of their charge compositions and the corresponding mechanisms on Zn2+ electroplating behavior. Here, we use amphoteric cellulose as an exemplary research object, as the number of positive/negative groups can be easily and effectively controlled. We elucidate in detail the interplay between the complexation and adsorption mechanisms of the amphoteric cellulose additive in AZBs. Specifically, the amphoteric cellulose additive not only guides and regulates Zn2+ deposition but also forms a uniform protective layer on the Zn surface. As a result, the optimal additive enables dendrite-free and side-reaction-suppressed AZBs, leading to a Zn||Zn cell with a high depth of discharge of 68.4%, and a Zn||NH4V4O10 cell with a high reversible specific capacity of 310 mAh g–1. This work demonstrates a promising strategy by elucidating the role of charge composition in electrolyte additive design, advancing the development of stable AZBs.
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PubMed
高影响因子
DESALINATION
·
2025
·
IF 9.8
Xiaoping Feng,Yanhui Xie,Xiang Qin,Qingbin Zhao,Dongying Hu,Fangchao Cheng
The easily compacted filter layer, low water flux, and rapid flux decay remain bottlenecks for cellulose triacetate (CTA)-based reverse osmosis (RO) membranes for desalination. Focusing on these issues, hierarchically structured CTA-based membranes were fabricated by embedding sodium alginate (SA) gel as the interlayer between CTA (DMSO as solvent) and polyamide (PA) layers via gel-regulated interfacial polymerization (IP). The SA gel regulates the diffusion rate of phenylenediamine and the IP rate, reducing the PA layer's cross-linking with an ideal thickness and proper surface roughness. Notably, the resulting RO membranes exhibited a high salt rejection rate of 96.87 % and an enhanced water flux from 11.80 L m −2 h −1 to 15.78 L m −2 h −1 after the addition of 0.1 wt% SA gel, surpassing that of some previously reported CTA-based RO membranes. More importantly, the hierarchically structured CTA-based RO membrane, which was not readily compatible, presented prominent potential free chlorine resistance with the enhanced water flux of 17.80 L·m −2 h −1 and desirable stability over 700 min. Overall, this study offers a new paradigm for the high-performing CTA-based RO membranes for desalination. Synopsis As for the ‘trade-off’ drawback between salt rejection and water flux, this study provide a new paradigm for hierarchically structured CTA-based RO membranes posing high salt rejection while maintaining an increased water flux, exceeding that of some previously reported CTA-based RO membranes.
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高影响因子
CARBOHYDRATE POLYMERS
·
2014
·
IF 3.916
Xu Wang,Yaping Wang,Li Li,Zhipeng Gu,Xixun Yu
The aim of this study was to evaluate the crosslinking effect of dialdehyde carboxymethyl cellulose (DCMC) on decellularized porcine aortas. Before implanted, biological tissues must be chemically modified to avoid rapid enzymatic degradation and serious immune response. To overcome limitations like high cytotoxicity and susceptibility to calcification caused by glutaraldehyde (GA), a traditional crosslinking reagent, dialdehyde carboxymethyl cellulose (DCMC) was employed to fix biological tissues. The crosslinking characteristics and cytotoxicity of aortas fixed by DCMC were all investigated. The results indicated that DCMC-fixation significantly increased the mechanical strength and the capacity of enzymatic hydrolytic resistance of tissues. The histological examination showed that the microcosmic structures of tissues were all preserved well after DCMC fixation. In addition, the data obtained from MTT assay confirmed that the cytotoxicity of DCMC-fixed tissues was significantly lower than glutaraldehyde-fixed counterparts. In a word, the present study demonstrated DCMC might be an effective crosslinking reagent for biological tissue fixation with low cytotoxicity.
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高影响因子
Biomaterials Science
·
2022
·Vol. 10
·期 6
·1476-1485
·
IF 7.59
Ran Xu,Junjie Zhou,Hongyu Gong,Li Qiao,Yuguo Li,Dongwei Li,Meng Gao,Guanchen Xu,Meng Wang,Xiu Liang,Xingshuang Zhang,Mingfu Luo,Hongbo Qiu,Kang Liang,Yong Li
With the vigorous development of electronics and the increasingly prominent problem of environmental pollution, it is particularly important to exploit environmentally friendly electronic devices. Transient electronics represent a kind of device that once the specified functions have completed can completely or partially disappear through physical or chemical actions. In this work, we introduce a novel guar gum-cellulose aerogel (GCA) membrane based on natural biomaterials and successfully use it as an electrolyte film to fabricate a degradable zinc-ion battery (DZIB). All components of the prepared DZIBs can be successfully degraded or disintegrate in phosphate-buffered saline (PBS) containing a solution of proteinase K after approximately 40 days. This electrolyte film has a high ionic conductivity of approximately 4.73 × 10−2 S cm−1 and a good mechanical stress property. When applied to DZIB, the production of zinc dendrites can be restrained, leading to the battery showing excellent electrochemical performance. The battery exhibits a specific capacity of 309.1 mA h g−1 at a current density of 308 mA g−1 after 100 cycles and a steady cycling ability (100% capacity retention after 200 cycles). More importantly, the electrochemical performance of DZIB is better than that of transient batteries reported in the past, taking a solid step in the field of transient electronics in the initial stage.
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高影响因子
Frontiers of Materials Science
·
2014
·Vol. 8
·期 4
·373-382
·
IF 0
Zhou Hui-Yun,Cao Pei-Pei,Zhao Jie,Wang Zhi-Ying,Li Jun-Bo,Zhang Fa-Liang
Novel ethyl cellulose/chitosan microspheres (ECCMs) were prepared by the method of w/o/w emulsion and solvent evaporation. The microspheres were spherical, adhesive, and aggregated loosely with a size not bigger than 5 μm. The drug loading efficiency of berberine hydrochloride (BH) loaded in microspheres were affected by chitosan (CS) concentration, EC concentration and the volume ratio of V (CS)/ V (EC). ECCMs prepared had sustained release efficiency on BH which was changed with different preparation parameters. In addition, the pH value of release media had obvious effect on the release character of ECCMs. The release rate of BH from sample B was only a little more than 30% in diluted hydrochloric acid (dHCl) and that was almost 90% in PBS during 24 h. Furthermore, the drug release data were fitted to different kinetic models to analyze the release kinetics and the mechanism from the microspheres. The released results of BH indicated that ECCMs exhibited non-Fickian diffusion mechanism in dHCl and diffusion-controlled drug release based on Fickian diffusion in PBS. So the ECCMs might be an ideal sustained release system especially in dHCl and the drug release was governed by both diffusion of the drug and dissolution of the polymeric network.
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ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Quanqian Lyu,Bolun Peng,Zhanjun Xie,Shuo Du,Lianbin Zhang,Jintao Zhu
Harvesting energy from moist in the atmosphere has recently been demonstrated as an effective manner for a portable power supply to meet the ever-increasing demands of energy consumption. Porous materials are shown to have great potential in moist-induced electricity generation. Herein, we report moist-induced electricity generation by electrospun cellulose acetate (CA) membranes with optimized porous structures. We show that the pore size and porosity of CA membranes can be readily tuned via a facile compression and annealing process, and the effect of pore features on the output voltages can thus be investigated systematically. We find that, at a relatively high porosity, the electricity-generation performance can be further enhanced by constructing a smaller pore to form more nanochannels. Porous CA membranes, with an optimized porosity of 52.6% and a pore diameter less than 250 nm, are prepared to construct moist-induced electricity generators, which can be applied as breath sensors and can power up calculator operation. The current study provides insights for the construction of porous materials with different pore characteristics for moist-induced electricity generation, especially in the exploration of more efficient and low-cost porous materials for large-scale practical application of the portable power supply.
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高影响因子
CELLULOSE
·
2018
·Vol. 26
·期 3
·1747-1755
·
IF 3.809
Zhou Ting,Cheng Xudong,Pan Yuelei,Li Congcong,Gong Lunlun
Abstract Polyvinyl alcohol (PVA)/cellulose nanofibers (CNFs)/Gelatin hybrid organic aerogels were synthesized using a facile and environmentally friendly freeze-drying method. The biobased gelatin acted as a cross-linking agent and combined PVA and CNFs tightly by hydrogen bonds. The composites were characterized and analyzed by various techniques including uniaxial compression test, scanning electron microscopy, as well as thermal conductivity analysis and TGA–DTG analyses. The mechanical properties were strengthened significantly with the introduction of a small amount of gelatin. The modulus of PVA/CNF/G3 was 1.65 MPa, nearly eightfold of the PVA/CNF aerogel and 91 times higher than the neat CNF aerogel. Microstructure analyses revealed the three-dimensional network of the aerogels. The composites also possess good thermal stability, low density, and low thermal conductivity. Therefore they have broad prospects in the field of thermal insulation. Graphical abstract
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高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Jie Wei,Shuai Jia,Jie Wei,Chao Ma,Ziqiang Shao
Although humidity-responsive actuators serve as a promising candidate in smart wearables, artificial muscles, and biomimetic devices, most of them derived from synthetic polymers could not simultaneously achieve multifunctional properties. In this work, a cellulose nanofiber (CNF)-based film actuator with high mechanical properties, excellent Joule heating, and antibacterial capability is successfully constructed by integrating with Ti3C2Tx (MXene) and tannic acid (TA) via a vacuum-assisted filtration approach. Owing to the unique nacrelike structure and strong hydrogen bonds, the tensile strength and toughness of the composite film could reach 275.4 MPa and 10.2 MJ·m–3, respectively. Importantly, the hydrophilic nature of CNFs and alterable interlayer spacing of MXene nanosheets endow the composite film with sensitive humidity response and extraordinary stability (1000 cycles). With the assistance of MXene nanosheets and TA, the composite film could not only present outstanding Joule heating but also possess remarkable antibacterial properties against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Benefiting from the above merits, the proof-of-concept smart garment is assembled by the as-prepared film and is capable of regulating humidity and temperature.
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高影响因子
Additive Manufacturing
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2022
·
IF 11.632
Guoqiang Zhou,Mei-Chun Li,Faming Wang,Chaozheng Liu,Changtong Mei
The development of porous three-dimensional (3D) monoliths from natural materials for a wide spectrum of thermal insulation , energy storage and tissue engineering applications has recently gained tremendous interest. However, the lack of 3D structural customization and shape fidelity of monoliths limited their effectiveness in meeting a variety of practical uses. Herein, the material extrusion-based 3D printing technology is used to manufacture a variety of 3D customized monoliths with high shape fidelity that are useful for thermal insulation and energy storage applications . By using sustainable wood-derived cellulose nanofiber (CNF) gels as inks, the 3D printability and shape fidelity are systematically optimized by tailoring the concentration-dependent rheological properties as well as the printing parameters. Benefitted from the high fidelity and self-supporting features, the optimized 3D printed CNF monoliths can be further transformed into porous CNF scaffolds with highly-retained 3D shape using a well-established freeze-drying technique without the use of any specific container. The as-prepared CNF scaffold has porous structure , superior mechanical properties , and low thermal conductivity , demonstrating well heat insulation properties. Furthermore, the porous CNF scaffold can be used as a platform for the in-situ polymerization of aniline (ANi). The resultant CNF-PANi scaffold has a conductivity of 0.334 S•cm −1 , and delivers a high capacitance of 107.9 mF·cm −2 (@0.2 mA·cm −2 ) as a binder-free electrode in supercapacitors . This work provides some guidance for 3D printing of customizable monoliths from sustainable materials by tuning the rheological properties and printing parameters for thermal insulation and energy storage applications.
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高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 9
·2218
·
IF 5.076
Binbin Wu,Yikai Sun,Qiujin Fan,Jiahui Chen,Weizheng Fang,Shiliang Chen
In this report, phthalocyanine (Pc)/reduced graphene (rG)/bacterial cellulose (BC) ternary nanocomposite, Pc-rGBC, was developed through the immobilization of Pc onto a reduced graphene–bacterial cellulose (rGBC) nanohybrid after the reduction of biosynthesized graphene oxide-bacterial cellulose (GOBC) with N2H4. Field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FT-IR) were employed to monitor all of the functionalization processes. The Pc-rGBC nanocomposite was applied for the treatment of phenol wastewater. Thanks to the synergistic effect of BC and rG, Pc-rGBC had good adsorption capacity to phenol molecules, and the equilibrium adsorption data fitted well with the Freundlich model. When H2O2was presented as an oxidant, phenol could rapidly be catalytically decomposed by the Pc-rGBC nanocomposite; the phenol degradation ratio was more than 90% within 90 min of catalytic oxidation, and the recycling experiment showed that the Pc-rGBC nanocomposite had excellent recycling performance in the consecutive treatment of phenol wastewater. The HPLC result showed that several organic acids, such as oxalic acid, maleic acid, fumaric acid, glutaric acid, and adipic acid, were formed during the reaction. The chemical oxygen demand (COD) result indicated that the formed organic acids could be further mineralized to CO2and H2O, and the mineralization ratio was more than 80% when the catalytic reaction time was prolonged to 4 h. This work is of vital importance, in terms of both academic research and industrial practice, to the design of Pc-based functional materials and their application in environmental purification.Keywords:bacterial cellulose;graphene;phthalocyanine;phenol;degradation
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高影响因子
Carbohydrate Polymer Technologies and Applications
·
2021
·
IF 0
Ying Guan,Wenqi Li,Hui Gao,Liping Zhang,Liang Zhou,Feng Peng
Cellulose nanocrystals (CNC) were successfully prepared from waste newspapers through a simple pretreatment and hydrolysis process. The Fourier transform infrared spectroscopy (FTIR) result for the CNC suggested that no new chemical bonds were formed during the preparation of CNC. X-ray diffraction results indicated that the crystallinities of the deinked and untreated waste newspapers were 66% and 73.8%, respectively. Greater smoothness of the deinked waste newspapers fibers could be clearly observed by scanning electron microscope (SEM), which was attributed to the removal of ink from the chemical treatment. The transmission electron microscopy (TEM) and atomic force microscopy (AFM) results of the CNC revealed a needle-like natural fiber with a length of 300 nm to 600 nm, a diameter of 10 nm to 30 nm, and an aspect ratio in the 10 to 60 range. The obtained CNC particles were found to improve the physical properties of paper sheets, specifically that of the tear, tensile, and burst indices. The maximum increase in the physical properties was achieved with a 5.5% CNC addition.
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TEXTILE RESEARCH JOURNAL
·
2023
·
IF 2.3
Changcheng Zhang,Xiaoqiang Ma,Ting Pan,Yan Zhang,Huiyu Jiang,Jinbo Yao
Monodisperse poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) cationic nanospheres were synthesized by soap-free emulsion polymerization, and were subsequently combined with gardenia to prepare dye/nanospheres. The influence of the concentration of gardenia yellow, rate of vortexing, temperature and pH of mixing on the adsorption capacity and stability of microspheres were thoroughly investigated, and the prepared gardenia/poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) nanospheres acted as liquid pigments to dye the fabric substrates by the impregnation method. In particular, the photostability of gardenia/poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) and the reflection of its dyed fabrics are distinctly described, the comparison of the dyeing property effect between gardenia/poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) and gardenia yellow dyed by mordant dyeing were analyzed. According to the experimental findings, the dyestuff nanospheres have high stability when the pH is 7–8, the mass ratio of gardenia yellow to poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) nanospheres was 12.8:1, the temperature was 60°C for 30 min, and the mixing speed was 500 rpm. Dyeing cotton fabrics with gardenia/poly (methyl acrylate-meth-acyloxy-ethyl trimethylammonium chloride) produced higher color strength and color fastness than the gardenia yellow with mordant dyeing.
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高影响因子
危险品化学品经营许可证（带存储）