INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Ziwei Wu,Yiyang Chen,Yuan Peng,Haozhe Xue,Yongxin Yao,Shimeng Yang,Chengyuan Pan,Dayu Zhang,Yongjian Xie
The use of intelligent pesticides that respond to environmental stimuli is a promising strategy for achieving sustainable pest control while mitigating pesticide-related environmental pollution. This study reports the design of a pH and laccase dual-stimulus-responsive pesticide-slow-release composite (IMI@UiO-66@SL). The composite utilises an imidacloprid (IMI)-encapsulated metal–organic framework (MOF; UiO-66) as a nano-carrier and sodium lignosulfonate (SL) as a capping agent. Results show that IMI@UiO-66@SL exhibits excellent IMI release properties in acidic and laccase-rich environments, which closely mimic the physiological and behavioural conditions of termites. Furthermore, compared to the original IMI formulation, IMI@UiO-66@SL exhibits enhanced and prolonged insecticidal activity. Briefly, this study reports a promising approach for the sustainable management of termite colonies.
研究领域:
农业科学
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材料科学
·
昆虫学
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高影响因子
EUROPEAN POLYMER JOURNAL
·
2025
·
IF 6.3
Yanfei Liu,Juan Li,Shengnan Huang,Xiaokai Wu,Shaowen Huang,Dingbo Shu,Chi Zhang,Xiaogang Yin
In this study, a novel three-dimensional bio-based superabsorbent hydrogel, SL-P(AA-AMPS)/CMCS, was synthesized via freeze-drying using sodium lignosulfonate (SL) with rigid phenylpropane structures as the bio-based framework, carboxymethyl chitosan (CMCS) enriched with hydrophilic groups (–OH, –COOH, and –NH 2 ) as the hydrophilic modifier, and acrylic acid (AA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as monomers. Polymerization was initiated by ammonium persulfate (AP) and crosslinked with N,N’-methylenebisacrylamide (MB). The hydrogel’s structure, morphology, and absorption properties were systematically characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Results revealed a uniform porous structure with an average pore size of 5.8 μm. Absorption capacities in deionized water and 0.9 % NaCl solution reached 1132.9 g/g and 127.9 g/g, respectively, surpassing commercial diaper fillers (273.3 g/g and 61.5 g/g) and feminine hygiene products (223.5 g/g and 45.8 g/g). Under pressurized conditions (2068 Pa), absorption values remained high at 125.7 g/g (deionized water) and 24.0 g/g (0.9 % NaCl solution). The hydrogel exhibited exceptional water retention, retaining 88.8 % and 85.8 % of absorbed water after 8 h at 40 °C and 60 °C, respectively. Swelling kinetics followed a pseudo-first-order model (R 2 > 0.99), achieving equilibrium within 600 s (deionized water) and 60 s (0.9 % NaCl solution). Biodegradation tests demonstrated a 47.5 % degradation rate in soil after 28 days, significantly exceeding that of non-bio-based P(AA-AMPS) (3.7 %). Application tests highlighted superior absorption capacities for artificial urine (82.4 g/g) and blood (179.2 g/g), outperforming conventional hydrogels by 3.3- and 7-fold, respectively.
研究领域:
材料科学
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生物医学工程
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高影响因子
POLYMER
·
2024
·
IF 4.1
Junhao Fei,Tao Tang,Likang Zhou,Huiwen He,Meng Ma,Yanqin Shi,Si Chen,Xu Wang
There exist two theories on the swelling behavior of cross-linked polymer networks treated by statistical thermodynamic and scalar methods, respectively. These two theories predict inconsistent network chain length dependence of the swelling ratio. The swelling of biopolymer gels is analysed with scaling laws from polymer physics, as an alternative for the classical Flory-Rehner theory. In this paper, the swelling data of sodium lignosulfonate grafted polyacrylic acid cross-linked networks in good solvents are reanalyzed, and it is pointed out that these networks are a typical model network conforming to the two-phase structural picture. For the swelling behavior of gels in the semi-dilute regime we derive the scaling theory based swelling equations, which make them compact and universal character.
研究领域:
高分子化学
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材料科学
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DOI
高影响因子
POLYMER BULLETIN
·
2018
·Vol. 76
·期 8
·4103-4116
·
IF 1.589
Xu Wenjing,Chen Yizhen,Kang Jianxun,Li Baojun
Biomass is important precursor to construct environmental functional materials. Polyaniline/lignosulfonate (PANI-LS) was synthesized through one-step method and used as an adsorbent to remove acid red 94 (AR94) dye from aqueous solution. The PANI-LS was characterized using SEM, XPS, FTIR and N 2 -sorption analysis. The particles of PANI-LS have been considerably changed after lignosulfonate modified polyaniline. From the batch experiment results, the solution pH plays a significant role during the adsorption. The Langmuir model well describes the adsorption data with the maximum sorption capacity of 10.56 g g −1 (10,560 mg g −1 ). Pseudo-second-order model can fit well the kinetic data obtained from batch AR94 removal experiments. The adsorption of AR94 onto PANI-LS is a spontaneous and exothermic process in nature. After adsorption, the adsorbate and adsorbent formed a gel-like composite responsible for the superior adsorption efficiency.
研究领域:
环境科学
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材料化学
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水处理
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聚合物纳米复合材料
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Xiaoguang Qiao,Yuhan Zhang,Linan Wang,Shuzhen Zhou,Xinchang Pang
The combination of biomass and liquid metal (LM) makes the preparation process “greener” and application of LM composite materials more sustainable. Here we reported the solvent free preparation of lignosulfonate (LS) stabilized eutectic gallium/indium (EGaIn) LM nanodroplets through ball milling (BM), which was recognized to be efficient and environmentally-friendly alternatives to solution-based methods. By regulating the BM frequency and milling time, uniform LM nanodroplets with a size <200 nm can be achieved. Moreover, the surface of the EGaIn nanodroplets was covered by LS molecules, owing to the hydrogen bond formed between Ga 2 O 3 and LS. Hydrophilic LS shell endowed the LS@EGaIn nanodroplets excellent colloidal stability in the aqueous media. The elongation at break and fracture strength of hydrogel with the addition of LS@EGaIn significantly improved with the addition of LS@EGaIn. Besides, the conductivity and excellent stress responsibility of the LS@EGaIn composite hydrogel illustrated its potential application as s a stress sensor, flexible wearable devices and other related applications. Moreover, it was predicted that LS can be replaced by other synthesized or biological macromolecules , and induced the formation of types of LM based composite materials through such a simple method.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Yueqin Li,Chen Chen,Lin Han,Zichun Lu,Ning Zhang,Runtian Miao
Conducting polymer hydrogels are typically employed in all-gel supercapacitors; however, Poly[3,4-ethylene-dioxythiophene] (PEDOT)-based hydrogel supercapacitors still suffer from low capacitance because of the low packing density of PEDOT in the electrodes. Here, we demonstrate lignosulfonate sodium (LS) as an excellent template to synthesize various LS-PEDOT conductive nanofillers for high mass-loading LS-PEDOT/PAAM hydrogel electrodes. Then, the optimum LS-PEDOT/PAAM electrode was assembled with a redox-active LS/PAAM/Fe 3+ hydrogel electrolyte to form sandwich-structured all-gel supercapacitors, which could deliver a high specific capacitance of 672.5 mF/cm 2 and an energy efficiency of 60 μWh/cm 2 , which are three times higher than the 220 mF/cm 2 and 19.5 μWh/cm 2 of the device without Fe 3+ at the same condition. Such a device shows excellent temperature tolerance from −30 to 100 °C. Besides, the LS-PEDOT/PAAM electrode has excellent photothermal conversion effects under simulated solar illumination. The sluggish electrochemical performance of the SC under low temperatures could be significantly boosted by ~50 % under simulated solar light. All of these findings demonstrate that the capacitance performance of the PEDOT-based hydrogel device is successfully improved not only at room temperature but also under subzero conditions.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Ruitong Hong,Zile Zhang,Shenrui Pan,Yu Chen,Huan Wang,Wenli Zhang,Xuliang Lin
All-in-one supercapacitors are one of the best candidates for realizing flexible supercapacitors because of their outstanding flexibility and stability. The pursuit of improved electrochemical performance while meeting the requirements of flexible functionalization has always been a long-term goal. To this aim, lignosulfonate (LS) can be used in the field of all-in-one supercapacitors and contribute to its unique three-dimensional structure and abundant functional groups. By doping a small amount of LS, a simple approach is developed to achieve a one-step improvement in electrochemical performance and flexible functional design in this study. PVA-lignosulfonate hydrogel (PLH) obtains a compact and regular three-dimensional porous structure, higher ionic conductivity (0.17 S/cm), bending flexibility, and compression resistance. Polyaniline (PANI) based solid-state supercapacitors PANI-PVA and PANI-PLH show specific capacitance values of 505 and 558 mF/cm 2 , respectively, at a current density of 0.5 mA/cm 2 . After 5000 charge–discharge cycles, the capacitance retention rate increases from 53 % to 73 %, and the PANI-PLH can maintain the stability of electrochemical performance under bending, folding, puncturing, and squeezing. After 1600 times folding, the capacity remains almost 100 %. This study presents a one-step optimization for the construction of functional and high-performance all-in-one supercapacitors in a simple way and a novel idea for the potential application of the high-value lignin.
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CELLULOSE
·
2021
·Vol. 28
·期 11
·7243-7256
·
IF 5.044
Lu Xinyu,Que Han,Guo Haoquan,Ding Chenrong,Liu Xu,Qin Yu,Robin Hossain Mahmud,Xu Chaozhong,Gu Xiaoli
Abstract A homogeneous α -cellulose film was prepared by a regeneration method from ZnCl 2 /CaCl 2 /cellulose mixed system and was further combined with sodium lignosulfonate (SLS) via crosslinking through intermolecular hydrogen bonds and “bridge linkages”. The physicochemical and antibacterial performance of prepared films were investigated and results showed that the modified film exhibited stronger tensile strength, higher thermal stability, lower hydrophilic effect, better UV shielding as compared with the original one, and especially, better antibacterial ability derived from the presence of phenolic hydroxyl and sulfonate groups in SLS. This study proposed a simple and sustainable method for fabricating a multifunctional and environmentally friendly composite film using two main lignocellulose resources as raw materials. Graphical abstract
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高影响因子
CHROMATOGRAPHIA
·
2021
·Vol. 84
·期 2
·109-116
·
IF 2.044
Hong-Xia Fang,Peng Cui,Chen Qian
Depolymerized real lignin products are very complex mixtures. Comprehensive assessment of the decomposition efficiency and characterizing of depolymerized products still remain extremely challenging. In this study, based on depolymerization solution of commercially available sodium lignosulfonate under mild conditions, an improved method was well established for characterization of real lignin depolymerized products using GC–MS, which enabled the detection of main 37 lignin-based aromatic products. The effects of acid-catalyzed temperature, time and catalyst/lignin ratio on the depolymerization products were systematically investigated. The result revealed that ~ 25 wt% of lignosulfonate was depolymerized into lignin-derived aromatic products under optimized mild acid-catalyzed reaction conditions of 130 °C for 60 min with a catalyst/lignin ratio of 2.334. Most of the identified products were common commercial compounds, while the obtained bisphenols were potential compounds for new applications such as bio-based polymer building blocks. Preliminary studies also highlight that the depolymerization behavior seems to present selectivity to some extent during these specified acid-catalyzed reaction.
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高影响因子
Polymers
·
2019
·Vol. 11
·期 11
·1782
·
IF 3.164
Lin Gu,Meng-Yun Xie,Yu Jin,Min He,Xiao-Yan Xing,Yuan Yu,Qing-Yun Wu
Lignin is the second most abundant and low-cost natural polymer, but its high value-added utilization is still lack of effective and economic ways. In this paper, waste lignosulfonate (LS) was introduced to fabricate antifouling membrane surfaces via layer-by-layer self-assembly with polyethyleneimine (PEI). The LS/PEI multilayers were successfully deposited on the polysulfone (PSf) membrane, as demonstrated by ATR-FTIR, XPS, Zeta potential measurements, AFM, and SEM. Meanwhile, the effect of the number of bilayers was investigated in detail on the composition, morphologies, hydrophilicity, and antifouling performance of the membrane surface. As a result, with the bilayer numbers increase to 5, the PSf membrane shows smooth surface with small roughness, and its water contact angle reduces to 44.1°, indicating the improved hydrophilicity. Accordingly, the modified PSf membrane with 5 LS/PEI bilayers repels the adsorption of protein, resulting in good antifouling performance. This work provides a green, facile, and low-cost strategy to construct antifouling membrane surfaces.Keywords:lignin;polysulfone membrane;layer-by-layer self-assembly;antifouling;surface modification;hydrophilic
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INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Zexiao Zhang,Jiahui Wei,Bing Yuan,Fengli Yu,Congxia Xie,Shitao Yu
An aqueous phase Pd nanoparticles (NPs) system reduced and stabilized only by sodium lignosulfonate (SLS) was found to exhibit a favorable catalytic performance in hydrodeoxygenation of vanillin to produce 2-methoxy-4-methylphenol (MMP). Ultraviolet-visible spectroscopy (UV-Vis), transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FT-IR) characterization were carried out to confirm the formation of NPs, and the influence of various metal salt precursors, temperatures, stirring rates and SLS concentrations on catalyst preparation. It was revealed that the optimized Pd NPs with an average diameter of 14.63 nm had achieved a 99.8 % vanillin conversion and a 98.6 % MMP selectivity under the conditions of 1 mmol vanillin, n (Vanillin) / n (Pd) = 300, 1 MPa H 2 , 70 °C and 2 h. Besides, MMP, the target product, was found an auto-separation property from the aqueous catalyst system due to its less solubility in water. Furthermore, this aqueous Pd NPs catalyst was demonstrated to have stable catalytic activity in the hydrodeoxygenation of vanillin by ten-run tests with favorable conversions of vanillin above 98 %. The selectivity of MMP stayed above 92 % within five runs and still maintained 85.4 % after ten runs. Thus, an environmentally friendly and mild-conditioned hydrodeoxygenation method of vanillin into MMP was developed by using SLS, one of the by-products of the pulp and paper industry.
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高影响因子
RSC Advances
·
2019
·Vol. 9
·期 7
·3558-3569
·
IF 3.049
Hao Xu,Wenhui Yi,Dongfan Li,Ping Zhang,Sweejiang Yoo,Lei Bai,Jin Hou,Xun Hou
Silkworm fibers have attracted widespread attention for their superb glossy texture and promising mechanical performance. The mechanical properties can be reinforced with carbon nanofillers, particularly carbon nanotubes (CNTs), depending on the CNT content in the silk fibers. In order to increase the CNT content, lignosulfonate (LGS) was used as a surfactant to ameliorate the CNT solubility, dispersibility, and biocompatibility. The resulting CNT/LGS nano-composite was further processed through an additional purification method to remove excess surfactant and enhance the CNT/LGS ratio. Then the purified biocompatible single and multiple-walled CNTs were fed to silkworms, leading to a large CNT content in the resulting silk fibers. Reinforced silk fibers were produced with a mechanical strength as high as 1.07 GPa and a strain of 16.8%. The toughness modulus is 1.69 times than that of the unpurified group. The CNT-embedded silk fibers were characterized via Raman spectrometry and thermogravimetric analysis (TGA), demonstrating that the CNT content in the silk fibers increased 1.5-fold in comparison to the unpurified group. The increased CNT content not only contributed to the self-assembly into buffering knots of silk fibers, but it also enhanced the conductivity of graphitized silk. Our coating and purification strategies provide a potential facile way to obtain natural silk fibers with high mechanical performance.
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