CARBOHYDRATE POLYMERS
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2024
·
IF 10.7
Shengkai Liu,Huiling Li,Xi Li,Wei Wang,Chunguang Rong,Mengjie Yang,Yonggui Wang,Jing Wang,Yabei Xu,Daxin Liang,Yanjun Xie
The titanium-based lithium ion sieve (HTO), renowned for its exceptional adsorption performance and cyclic stability, was utilized in addressing the global shortage of lithium resources. However, the recovery and reuse efficiency of HTO in powder form is relatively low, which limits its application in industrial fields. To address this issue, this study utilized carboxymethyl cellulose (CMC) as the principal matrix material, while polyvinyl alcohol (PVA) played a dual function as both matrix and crosslinker, negating the necessity for supplementary crosslinking materials. Employing water as the only solvent, HTO was embedded into the CMC-PVA blended film matrix. It was observed that augmenting the CMC content substantially elevates the adsorptive capability of the film. However, this enhancement comes at the cost of reduced mechanical robustness and diminished stability in solution. Consequently, by balancing the influence of adsorptive capacity and stability through fine-tuning the CMC-to-PVA ratio. Even when HTO powder is encapsulated within the film, the adsorption film retains the excellent adsorption properties of HTO, achieving an adsorption capacity for lithium of 29.21 mg g −1 within 12 h. This study provides an innovative pathway and ideas for the large-scale, low-cost production of sustainable lithium-ion adsorption materials.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
PubMed
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2019
·
IF 1.479
Jialiang Chen,Lirong Fu,Yan Li,Xiaodeng Yang,Beibei Wang,Chunlin Xu,Tianduo Li
To illuminate the interactions in N-[(2-hydroxyl)-propyl-3-trimethyl ammonium] chitosan chloride (HTCC)/sodium carboxymethyl cellulose (CMC) based films, the film-forming solutions were studied by rheology, and HTCC/CMC based films were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis. The HTCC/CMC based film-forming solutions with glycerol (polyvinyl alcohol (PVA) and anthocyanin) showed shear-thinning behavior. The apparent viscosity of the HTCC/CMC/glycerol (PVA and anthocyanin) film-forming solutions decreased slower than that of HTCC/CMC film-forming solution, due to the electrostatic interaction between HTCC and CMC, and hydrogen bonding interaction between the two biomacromolecules and glycerol, PVA and anthocyanin, which resulted in the formation of three-dimensional networks. The anthocyanin with rigid molecular structure formed different three-dimensional matrix with HTCC/CMC, resulted in viscosity dominated film-forming solution. The pH affected the electrostatic interaction between HTCC, CMC, and anthocyanin through neutralizing –COO− groups, and temperature showed a synergistic effect on both electrostatic interaction and hydrogen bonding. The inter-molecular interactions resulted in the red-shift of typical absorption peaks, and the increase of initial decomposition temperature and decomposition enthalpy of HTCC/CMC based films. The homogenous and smooth surface, and the compact texture of HTCC/CMC based films confirmed the intermolecular interaction between HTCC, CMC, and PVA (glycerol and anthocyanin).
研究领域:
材料科学
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生物化学
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DOI
高影响因子
CELLULOSE
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2021
·Vol. 28
·期 5
·2879-2888
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IF 5.044
Li Chang,Ju Benzhi,Zhang Shufen
The synthesis of the first cellulose-based vitrimer is described. Dynamic ester bonds were responsible for the dynamic properties of carboxymethyl cellulose (CMC)-based vitrimer. The addition of suitable catalyst and glycerol in the vitrimer formulations was crucial for the reprocessability of these materials. Thermogravimetric and dynamic mechanical analyses tensile strength tests were performed to investigate the effect of the catalyst and glycerol on the thermal stability and mechanical properties of the materials. A minimum amount of 5 mol% of 1,5,7-triazabicyclo[4.4.0]dec-5-ene with respect to the carboxyl group content was required to maintain reprocessability by hot press. The CMC vitrimer exhibited good reprocessability and shape memory ability. Our work demonstrates that cellulose, the most abundant bio-resource on the planet, can be a promising raw material for bio-based vitrimer due to its excellent renewability and low cost. Graphic abstract
研究领域:
材料科学
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化学工程
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DOI
高影响因子
International Journal of Environmental Research and Public Health
·
2022
·Vol. 19
·期 18
·11447
·
IF 4.614
Hong Xiao,Yingjun Wang,Hong Peng,Ying Zhu,Dexin Fang,Ganxue Wu,Li Li,Zhenxing Zeng
The transformation of organic pollutants by stabilized nano-FeS in oxic conditions is far less understood than in anoxic states. Herein, carboxymethyl cellulose-stabilized FeS (CMC-FeS) nanofluids are prepared at a CMC-to-FeS mass ratio of 1/2 and their performance of tetracycline hydrochloride (TC) degradation under oxic conditions was investigated. Here, we showed that TC could be efficiently removed by oxygenation of CMC-FeS nanofluids at neutral initial pH. We found that CMC-FeS dosages as low as 15 mg/L can achieve the TC removal efficiency as high as 99.1% at an initial TC concentration of 50 mg/L. Oxidative degradation plays a predominated role in TC removal (accounting for 58.0%), adsorption has the second importance (accounting for 37.0%), and reduction has minor impact (accounting for 4.1%) toward TC removal. Electron spin resonance assays, fluorescent detection using coumarin as a probe, and radical scavenging experiments confirm that hydroxy radicals (•OH), both in free and surface-bound forms, contribute to oxidation of TC. Humic acids brought detrimental effects on TC removal and therefore should be biologically degraded in advance. This work offers a facile and cost-effective solution to decontaminate TC in natural and engineered water bodies.Keywords:tetracycline hydrochloride;CMC-FeS nanofluid;oxygenation;hydroxy radicals
研究领域:
环境科学
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污染治理
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DOI
PubMed
高影响因子
ACS Applied Polymer Materials
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2025
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IF 4.7
Yunhao Bao,Xiangrui Guo,Jiabao Zheng,Pinghou Sheng,Shilong Wang,Tianyi Wang,Yingcai Wu,Ziyuan Liu,Yun Ding
Color-changing materials make up a category of smart materials capable of exhibiting chromatic transitions in response to environmental stimuli. Certain thermochromic materials exhibit tunable optical transmittance during chromatic transitions, allowing for dynamic modulation of solar radiation in energy-efficient window applications. In this work, we develop a low-cost thermochromic poly(N-isopropylacrylamide)/carboxymethyl cellulose sodium/poly(ethylene glycol) (PCP) composite, achieving excellent light modulation and indoor temperature regulation capabilities. The introduction of CMC and PEG significantly enhanced the uniform dispersion of PNIPAM, thereby endowing the material with a highly efficient transition from transparent to opaque. Meanwhile, the results show that the PNIPAM/CMC/PEG smart window has high luminous modulation (ΔTlum = 99.20%) with approximately 100% luminous transmission (Tlum = 99.29%) at 25 °C and approximately 0% transmission (Tlum = 0.09%) at 35 °C. Additionally, the smart window demonstrated long-term stability in dynamic transparent–opaque transitions and a low transition temperature of 30.9 °C. Therefore, the proposed composite presents several advantages, including high efficiency, low cost, and easy scalability, offering new insights into the design and fabrication of smart windows and other smart materials.
研究领域:
材料科学
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智能材料
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节能建筑
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聚合物复合材料
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光学器件
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DOI
高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Hua Gao,Weinan Cao,Zhenfeng Jiang,Zhongchuang Liu,Jiangxiong Deng,Yi Zeng,Xianyi Wu,Dongxing Fu,Shu-Juan Bao
Silicon is recognized as the most promising anode material for lithium ion batteries (LIBs) due to its high theoretical specific capacity (4200 mAh g −1 ). However, the significant volume expansion of Si during cycling restricts its practical application in LIBs. The binder is critical in mitigating the volume expansion stress of Si. This study discusses a new binder, CMC-SB, synthesized by linking sodium tetraborate (SB) with carboxymethyl cellulose sodium (CMC) via borate ester bonds, which enhances the flexibility of the binder. After being folded and subjected to a 200-g load, the CMC-SB film remains intact without breakage, indicating superior flexibility compared to CMC. When used as a binder for Si anodes, CMC-SB significantly improves battery stability during long-term cycling.
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高影响因子
Desalination and Water Treatment
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2024
·
IF 1
Jiaming Hu,Shuai Zhang,Chen Feng,Shanggeng Li,Longfei Zhang,Jiajun Ma,Qiang Yin
In this work, an efficient Fe 3+ adsorbent was synthesized by using the tryptamine and sodium carboxymethyl cellulose (CMC-Na) modified polyacrylamide gel. The functional monomers synthesized by the reaction of tryptamine and methacrylic acid chloride were doped into the composition, and CMC-Na participated in the formation of the gel network. By changing different conditions, the optimal use conditions of the gel were explored. The Langmuir and Freundlich isotherm models were used to discuss the adsorption behavior. According to the fitting results, the Freundlich model was more suitable for explaining the adsorption of Fe 3+ by gels. The feasibility of its adsorption process was confirmed by the study of its kinetics and thermodynamics. As an adsorbent, tryptamine CMC-Na modified polyacrylamide gel has excellent ability to remove Fe 3+ from aqueous solutions. The maximum adsorption capacity of tryptamine and CMC-Na modified polyacrylamide gel for Fe 3+ reached 127.5 mg g −1 .
研究领域:
环境科学
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材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF FLUORESCENCE
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2026
·
IF 3.4
Zhou Pingping,Hu Zhongshuang,Liu Wenfei,Ji Jing
Surfactants are widely used across diverse industries. Critical micelle concentration (CMC) is a key parameter governing their performance. While various established methods exist for characterizing CMC, there remains an urgent need for more sensitive, visually detectable, and versatile detection technologies to keep pace with the rapid advancement of novel surfactants. Herein, we report the development of a fluorescent probe SP-18, which synthesized by introducing a long alkyl chain into a low-toxicity fluorescein dye. By incorporating a hydrophobic n-octadecyl chain into the water-soluble fluorescein dye, the probe aggregates in aqueous media, leading to fluorescence quenching. Upon the addition of surfactants, (including anionic surfactant SDS, cationic surfactant DTAB, zwitterionic surfactant SB3-12, and nonionic surfactant Triton X-100), the probe inserts into the micelles that form. This leads to dissociation of fluorescent aggregates and triggers a fluorescence “turn-on” response. Specifically, SP-18 exhibits distinct spectral shifts (e.g., a blue-shifted emission and unique absorption changes) for SDS, enabling its selective identification among the four surfactant types. This work provides the probe SP-18 as a dual-function tool for robust CMC determination and specific surfactant identification.
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PubMed
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2018
·Vol. 26
·期 7
·2945-2953
·
IF 1.971
Chen Huayao,Lin Guanquan,Zhou Hongjun,Zhou Xinhua,Xu Hua,Huang Suqing
Avermectin (AVM) is a highly efficient pesticide against a variety of insects and is widely used in agriculture. However, it is susceptible to oxidation and photolysis, resulting in instability under UV irradiation and a short half-life. Herein, sodium carboxymethyl cellulose (CMC) was grafted by styrene (St), Methyl methacrylate (MMA) and butyl acrylate (BA) respectively to prepare grafted polymer nanoparticles in application for AVM sustained released. And the influence of different grafted monomer and the grafted rate on the AVM/grafted polymer nanoparticles performance was discussed. The larger the grafted rate of St was, the larger the particle size of AVM/grafted polymer nanoparticles had with a higher drug loading rate and stronger resistance to ultraviolet light. Besides, the particle size, drug loading rate and the ability of anti-ultraviolet light of grafted CMC emulsion was also influenced by the modifying agent. While the concentration of AVM was kept the same, the acrylic esters (MMA and BA) grafted emulsion have smaller particle sizes with higher drug loading rates and stronger anti-ultraviolet ability comparing to styrene (St) grafted emulsion. The effect of different amount of St and different monomer grafted on the sustained release performance of AVM/grafted polymer was also investigated. As the grafted rate of St increased, the release rate became smaller. The release speed has a sequence of CMC-g-PBA > CMC-g-PS > CMC-g-PMMA when CMC grafted with different monomer. Their sustained release curves can be described by Korsmeyer-Peppas equation. Finally, the insect toxicity test showed that insecticide toxicity against diamondback moth ( Plutella xylostella L.) has no apparent difference among the AVM and AVM/grafted polymer nanoparticles indicating that AVM/grafted polymer nanoparticles can reduce the amount of organic solution used for dissolution and prolonged its service life without decreasing its insecticide toxicity.
研究领域:
农业科学
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材料科学
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农药学
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DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 28
·19903-19911
·
IF 3.9
Dongliang Liu,Detao Kong,Qinghua Yang,Yaolong He,Hongjiu Hu
Aqueous emulsifiable diphenylmethane diisocyanate (EMDI) can form strong chemical bonds with aqueous adhesives due to the large number of isocyanate (–NCO) groups, which can enhance the mechanical performance of the adhesives. Currently, sodium carboxymethyl cellulose (CMC)–styrene butadiene rubber (SBR) emulsion aqueous bonding agents are widely used in the preparation of anode materials for lithium-ion batteries (LIBs). In this study, EMDI was added to a porous silicon–carbon composite electrode prepared from CMC–SBR, and the evolution of the mechanical properties of the electrode with the EMDI content was first investigated via quasi-static uniaxial tensile and interfacial strength tests. Subsequently, the effect of the EMDI content on the electrochemical properties of the electrodes was analysed by electrochemical impedance spectroscopy (EIS) and constant-current (CC) charge/discharge performance tests. Finally, material characterisation of the electrodes was carried out by Fourier transform infrared (FTIR) spectroscopy and specific surface area (Brunauer–Emmett–Teller (BET)) analysis. The results show that the addition of EMDI with a mass ratio of 10–20% to the CMC–SBR binder can enhance the mechanical performance of the active layer and the interfacial performance between the active layer and the current collector of the silicon–carbon composite electrode; simultaneously, EMDI can significantly reduce the electrochemical impedance of the electrode material and improve the capacity retention of the electrode. This study provides a new solution for modifying silicon–carbon composite electrodes and promotes the development of high-performance silicon–carbon electrodes.
研究领域:
材料科学
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电化学
·
能源存储
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DOI
PubMed
高影响因子
MATERIALS TECHNOLOGY
·
2017
·
IF 1.155
Mouping Fan,Haiying Yu,Yu Chen
CuO nanosheets prepared by a hydrothermal treatment were tested as anode material for sodium-ion batteries (SIBs) with aid of different binders, namely carboxymethyl cellulose (CMC) and poly (vinylidene) fluoride (PVDF). Compared with electrode containing PVDF, CuO nanosheets electrode with CMC binder showed significantly more satisfactory electrochemical performance. Specifically, CuO nanosheets electrodes with CMC binder delivered a high reversible capacity of 627.2 mAh g−1 at 50 mA g−1, and 73.4% of initial capacity value at a high current density of 2000 mA g−1 after 100 cycles. According to the morphological characterisation after cycling, compared with PVDF, CMC binder better preserved the structural integrity of the anode and accommodated the volume variation of CuO nanosheets during charge/discharge cycling, thus leading to a more satisfactory electrochemical performance. Furthermore, to explore the practical application of CuO nanosheets anode, a SIB full cell consisting of CuO nanosheets anode and Na3V2(PO4)3 cathode was assembled and tested.
研究领域:
材料科学
·
能源存储技术
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DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2021
·
IF 4.311
You Ma,Chunying Zhu,Taotao Fu,Youguang Ma,Huai Z. Li
Dynamics of non-Newtonian droplet (CMC aqueous solution) breakup with partial obstruction in microfluidic Y-junction was visually investigated. Three breakup stages were found: squeezing, transition and pinch-off. The effects of the concentration c of CMC, continuous capillary number Ca c and dispersed phase local capillary number Ca d on droplet breakup were studied. In squeezing stage and transition stage, the breakup process could be promoted by increasing Ca d or decreasing c . The pinch-off stage relied primarily on the surface tension and was almost independent of inertial force and viscous force. For the shear thinning non-Newtonian droplet, the length of the daughter droplet was always linearly stretched with time until breakup and the maximum gap width increased with Ca c , but decreased with the increases of c and Ca d .
研究领域:
流体力学
·
微流控技术
·
生物工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）