RSC Advances
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2016
·Vol. 6
·期 91
·88788-88796
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IF 3.289
Riyang Shu,Ying Xu,Longlong Ma,Qi Zhang,Tiejun Wang,Pengru Chen,Qingyun Wu
A novel hydrogenolysis process for lignosulfonate depolymerization was proposed using a noble metal catalyst cooperated with metal chloride in methanol. Hydrogenolysis performance was significantly affected by the catalysts, via a synergistic catalytic effect between the Lewis acid (metal chloride) and the noble metal. Reaction conditions were also optimized, with 8.6% aliphatic alcohols and 9.2% monomers obtained at 280 °C for 5 h over Pt/C cooperated with CrCl3. Analysis of the depolymerized products indicated that CrCl3 had a catalytic promoting effect on cleavage of β-O-4 bonds with the synergistic catalytic effect of Pt/C. Meanwhile, the noble metal catalysed saturation of the depolymerized products and suppressed them from condensing into residues. The sulfonic groups of lignosulfonate were cleaved and they did not cause Pt/C poisoning. The catalyst showed good recyclability, with no significant loss of catalytic activity after three runs.
研究领域:
化学工程
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可再生能源
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 137
·期 18
·48640
·
IF 2.188
Song Gao,Gang Wei,Qiang Liu,Qinze Liu,Tingting Gao,Jinshui Yao
Lignosulfonate-based polycatecholamine (PCEA-LS) was synthesized by a two-stage approach involving Mannich and catechol–amine reactions, and it was directly used to adsorb Congo red (CR) from the pH-unadjusted aqueous solution. PCEA-LS was characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). Various factors affecting on removal of CR by PCEA-LS were investigated in depth, including contact time, adsorbent dosage, and initial concentration of CR and adsorption temperature. The adsorption kinetics, isotherm, and thermodynamics of PCEA-LS for CR were explored in detail, and then its adsorption mechanism was systematically elucidated. Results indicated that the removal process of CR followed the pseudo-second-order kinetic model, and the isotherm data fitted the Langmuir model well. The maximum adsorption capacity reached 972.6 mg g −1 at 30°C in the pH-unadjusted (pH = 6.25) solution possibly due to the hydrogen bond, π–π stacking, and electrostatic interaction between PCEA-LS and CR. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48640.
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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高影响因子
BIORESOURCE TECHNOLOGY
·
2015
·
IF 4.494
Hongming Lou,Long Yuan,Xueqing Qiu,Kexian Qiu,Jinguo Fu,Yuxia Pang,Jinhao Huang
Sodium lignosulfonate (SXSL) and long-chain fatty alcohols (LFAs) could enhance the enzymatic hydrolysis of xylan, and the compound of SXSL and LFAs have synergies on the enzymatic hydrolysis. SXSL shows a strong enhancement in buffer pH range from 4.0 to 6.0. The enhancement increased with the SXSL dosage and the xylanase loading. The cellulose and lignin in corncob substrate could not only adsorb xylanase nonproductively, but also seriously reduce the accessibility of xylanase on xylan to impede the enzymatic hydrolysis of xylan. Cellulase could break the plant cell wall structure of corncob and make additives work better. The xylose yield of corncob at 72 h increased from 59.4% to 73.7% by adding the compound of 5 g/L SXSL and 0.01% (v/v) n -decanol, which was higher than that without cellulase and additives by 30.7%. Meanwhile, the glucose yield at 72 h of corncob increased from 45.8% to 62.3%.
研究领域:
生物化学
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酶工程
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DOI
PubMed
高影响因子
ADSORPTION SCIENCE & TECHNOLOGY
·
2017
·
IF 0.754
Mengqi Xia,Cheng Jin,Xianggui Kong,Meihong Jiang,Deqiang Lei,Xiaodong Lei
In this work, lignosulfonate intercalated Mg2Al layered double hydroxide was fabricated by coprecipitation method, which was used as a functional adsorbent for removing pyridine from wastewater. The X-ray powder diffraction and Fourier transformed infrared were carried out to investigate the structure of the product. In the removal process, the as-prepared lignosulfonate intercalated Mg2Al layered double hydroxide sample exhibited good adsolubilization property for pyridine, with maximum capacity of 400.8 mg g−1 in initial pyridine concentration of 400 mg/l and the removal percentage achieved about 87.9%. In addition, the influence of pH, time, and initial concentration of pyridine on the adsorption capacity was also examined. Moreover, the adsorption kinetic followed the pseudo-second-order model. Furthermore, after regeneration, the adsorbent can still show high adsorption capacity even for 10 cycles of desorption–adsorption. It hoped that lignosulfonate intercalated Mg2Al layered double hydroxide can be used as adsorbent for the removal of organic pollutants in wastewater.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Aicheng Zhang,Xuwen Wu,Xinping Ouyang,Hongming Lou,Dongjie Yang,Yong Qian,Xueqing Qiu
Inspired by the UV-blocking of lignin in plants and the adhesion of catechol in mussel dopamine, light-colored lignin-based microcapsules ((OMC + BMDM)/LS-OH3-T) with strengthened UV-blocking and good bioadhesion were obtained by demethylation modification of sodium lignosulfonate (LS) and encapsulation of chemical sunscreen actives. The results show that the adhesion between LS and skin improved from 0.158 to 0.173 mN/m due to the formation of catechol groups. When (OMC + BMDM)/LS-OH3-T was used as the unique active ingredient in the sunscreen, the sun protection factor (SPF) reached 86.67, fully meeting the daily sunscreen requirement. In addition, the color of microcapsule-based sunscreen was close to pure white, which effectively solves the dark color problem of the existing lignin-based sunscreens. As it demonstrates good biocompatibility, this new light-colored lignin-based sunscreen agent has good application potential in the skincare field.
研究领域:
材料科学
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生物学
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化学工程
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高影响因子
POLYMER BULLETIN
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2022
·Vol. 80
·期 3
·3103-3117
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IF 2.843
Wang Zi-Qiang,Zhang Yue-Fei,Li Yan,Zhong Jin-Rong
A novel composite filler sodium lignosulfonate/nano calcium carbonate (SL/CaCO 3 ) was prepared by dry ball milling. Thermogravimetric analysis revealed that the composite filler SL/CaCO 3 had improved thermal properties. The crystallization and melting behavior of isotactic polypropylene (iPP) modified by the composite filler was studied by differential scanning calorimetry. The best complex ratio (1:3) and optimal addition amount (2 wt%) of iPP nucleated by SL/CaCO 3 were confirmed. The results reflected that a small amount of SL/CaCO 3 into iPP could improve the nucleation ability, and excellent mechanical properties were obtained. The relative contents of β ‐crystals ( K β ) in iPP were above 0.83 after addition of the composite filler. At the same time, nano CaCO 3 played a significant role in crystallizing the iPP nucleated and greatly influenced the content of β -crystals. The elongation at break was increased by 32.27% and the impact strength was increased by 62.38% compared to those of pure iPP.
研究领域:
材料科学
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高分子化学
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2023
·
IF 5.9
Pengbo Xue,Yue Yu,Hui Wang,Yonglei Cao,Bi Shi,Ya-nan Wang
Chrome-free eco-leather manufacture is inevitable in sustainable development of the leather industry. Herein, oxidized sodium lignosulfonate (OSL) was prepared using H 2 O 2 and CuSO 4 catalyst as a biomass-derived tanning agent. H 2 O 2 oxidation of OSL breaks the aliphatic side-chain β -O-4′, β -5′, and β - β ’ linkages, transforms the adjacent phenolic hydroxyl group and methoxy group on the benzene ring into carboxyl groups and reduces the colority. OSL120 (120% H 2 O 2 , M w 1498) containing moderate carboxyl (6.27 mmol/g) and phenolic hydroxyl (0.18 mmo/g) appropriately coordinates with aluminum–zirconium salts (AZ), thereby promoting the uniform penetration of OSL–AZ complexes into the leather matrix. Moreover, OSL120 provides essential hydrophobic and hydrogen bonds interactions with collagen to form a rigid multi-point crosslinking network among collagen fibers. Thus, chrome-free tanned leather shows natural flesh color and shrinkage temperature up to 89.5 ℃, and crust leather with satisfactory physical properties are achieved. This work gives new insights into the low-carbon leather manufacture with lignin-based tanning system and provides a novel approach for the resource utilization of sodium lignosulfonate.
研究领域:
材料科学
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环境科学
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皮革化学与工程
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
·
IF 8.2
Xiang Wang,Jiwei Wang,Landong Jiang,Yibo Jiang
The heavy metal ions contained in industrial wastewater are a great threat to human health. Exploring a adsorbent which have low-cost, green environmental friendly, high adsorption capacity, good recycle is key to solve heavy metal ions pollution. Lignin sulfonate was obtained by treating corn stover, and then modified lignin sulfonate was obtained by hydrothermal method . The porous structure makes heavy metal ions occupy more internal adsorption sites. Modified lignosulfonate adsorbent efficiency removes heavy metals in wastewater especially Cu 2+ and Pb 2+ . The adsorption capacity of Cu 2+ on modified lignosulfonate is 450.3 mg g −1 , Pb 2+ is 475.4 mg g −1 . In addition, for 40 mg L −1 Cu 2+ and Pb 2+ using 0.4 g L −1 , the adsorption equilibrium is only reached within 60 min. Meanwhile, the removal ratio of Pb is 83 %, Cd is 72 %, Cu is 87 %, Zn is 36 %, Mn is 25 %, Cr is 95 %, and Fe is 99 % in wastewater using 0.4 g L −1 adsorbent in 2 h. This research develops a practical adsorbent to remove heavy metals from actual wastewater.
研究领域:
环境科学
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材料科学
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PubMed
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 12
·830
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IF 5.3
Hou Hongming,Long Jiajun,Li Xianglong
The chelation interaction between sodium lignosulfonate (SLS) and Cu 2+ is exploited to construct an enzyme-free creatinine sensing electrode (SLS-Cu/SPCE) via one-step electrodeposition on screen-printed carbon electrodes (SPCE). SLS chelation moderates Cu 2+ electro-reduction kinetics, resulting in finely structured Cu particles with a uniform and dense distribution. These Cu particles, with abundant unsaturated coordination sites, enhance creatinine adsorption and promote specific complexation with Cu 2+ , thereby increasing the oxidation current response for sensitive detection. The SLS-Cu/SPCE achieved a 0.12 µM detection limit, a 10–300 µM linear range, high reproducibility, and long-term stability over 28 days. Tests in human urine samples showed good agreement with enzymatic assays (relative error < 16%). The SLS-Cu 2+ coordination strategy offers a novel approach for optimizing Cu-based enzyme-free electrochemical creatinine sensors. Graphical A sodium lignosulfonate-Cu 2+ chelation strategy produces refined copper particles on SPCE with abundant unsaturated sites. These sites enhance creatinine adsorption and Cu 2+ complexation, enabling highly sensitive non-enzymatic detection (0.12 μM LOD, 10-300 μM range) with strong anti-interference and excellent stability.
研究领域:
电分析化学
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生物传感器
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纳米材料
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环境与临床监测
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PubMed
高影响因子
Materials
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2025
·Vol. 18
·期 24
·5584
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IF 3.2
Luyu Chen,Haoyu Zhang,Yirong Feng,Shuangfei Zhao,Lili Zhao,Wei He
HighlightsWhat are the main findings?Sustainable metal-coordinated lignosulfonate catalysts were selected as the model catalyst to reveal the role of active sites and solvents in hexose transformation.Lewis acid–base couple sites and Brønsted acid sites regulated the transformation process.What are the implications of the main finding?Isomerization or dehydration pathway of glucose was adjustable via different solvents.Hf-LigS showed the best catalytic activity in hexose transformation, especially isomerization reaction at high glucose concentration in ethanol.Sustainable lignosulfonate was employed as a key component for coordinating with various metal ions, affording metal-coordinated lignosulfonate catalysts (Hf-LigS) for hexose transformation. We first investigated the contribution of bare or tandem Lewis/Brønsted acid sites in each of the reaction steps. The results indicated that glucose isomerization was synergistically catalyzed by Lewis acid–base couple sites, and Brønsted acid sites were preferred for consecutive fructose dehydration to 5-hydroxymethylfurfural (HMF). DMSO and deep eutectic solvents enhanced the glucose dehydration and inhibited the isomerization reaction, leading to the formation of Levoglucosan (LGA) intermediate. Considering this, the Hf-LigS with moderate Lewis acid/base sites and Brønsted acid sites exhibited the best catalytic activity for hexose transformation, especially the isomerization reaction at high glucose concentration in ethanol (>20 wt%). This study established a fundamental understanding of the role of catalytic sites and solvent, guiding the selective transformation of hexose.
研究领域:
催化化学
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绿色化学
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生物质转化
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可持续能源
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有机转化
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PubMed
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 13
·e202405849
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IF 2
Juan Dai,Qixu Chen,Yue Li,Jin Wang,Yanchao Yin,Peiyu Zhao,Peichuang Li,Luying Wang
Graphical A defect-free PVDF/ZIF-8-LS membrane prepared by loading a continuous ZIF-8-LS film layer on the PVDF membrane exhibited high and stable adsorption performance for CR and TC removal, because of a good compatibility between PVDF membrane and ZIF-8-LS layer. Lignosulfonate (LS) enhances ZIF-8 dispersion and active sites but faces challenges in recovery and secondary pollution due to its powdered form. To address this, a polyvinylidene fluoride (PVDF)/ZIF-8-LS composite membrane was fabricated via vapor deposition, where LS promoted dense ZIF-8 growth and interfacial compatibility with PVDF. The resulting PVDF/ZIF-8-LS membrane shows a higher continuous, uniform and dense ZIF-8-LS layer without macroscopic cracks or obvious defects. In addition, the PVDF/ZIF-8-LS exhibits the best adsorption capacity of 110.6 mg g −1 for Congo Red, about 8.8 mg g −1 higher than the PVDF/ZIF-8, and 110.2 mg g −1 for tetracycline, respectively. With 92% capacity retention after three cycles and stability across pH 2–10. The more active adsorption sites facilitates the contact between the ZIF-8-LS layer and the adsorbed substance, in addition to the electrostatic, H-bonding, π-π interactions, and coordination bond are also conductive to the adsorption of PVDF/ZIF-8-LS. The excellent adsorption performance and good recyclability of the PVDF/ZIF-8-LS composite membranes exhibit a potential for adsorbing other contaminants from water.
研究领域:
材料科学
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环境科学
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Chenkai Yu,Min Wang,Dexian Zhang,Kangzhe Liang,Manyu Zhou,Jiawei Fu,Youheng Dong,Chunxia Chen,Liping Cai,Changlei Xia,Quanliang Wang
Plant protein-based adhesives are favored for their cost-effectiveness and environmental friendliness. However, the low reactivity of plant protein and inherent water sensitivity of its adhesive significantly limits their scalability and broader application. Drawing inspiration from mussels, we developed a robust and waterproof bio-based adhesive reinforcing soybean protein (SP) with lignosulfonate. Specifically, the lignosulfonate was modified with phenol and epoxidated to synthesize phenolated lignin epoxy resin (PLEP), which was then added into SP matrix. The resulting adhesive demonstrated excellent bonding performance, with a dry shear strength of 3.59 MPa and a wet shear strength of 2.07 MPa. Finite Element Method (FEM) simulation confirmed a decreased stress concentration due to energy dissipation for the SP/PLEP. Furthermore, the adhesive exhibited an 81.22 % residual rate after water immersion. The adhesion strength was enhanced due to the π-π/cation-π interactions, hydrogen bonds, metal coordination of calcium ions, and covalent bonds formed by amino groups in proteins. Molecular dynamics (MD) analysis verified the enhancement of intermolecular interaction after phenolic modification. Life cycle assessment (LCA) revealed that the environmental impact of SP/PLEP adhesive was lower than that of urea-formaldehyde resin. This study presents a soybean-based adhesive inspired by mussel, offering a straightforward strategy for developing biomimetic adhesives.
研究领域:
材料科学
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环境科学
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生物化学
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PubMed
高影响因子
危险品化学品经营许可证（带存储）