COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Zuoyu Jia,Fengkai Liang,Xinze Xu,Haifeng Zhou,Yaqing Zhang,Peng Liang
The removal of multiple heavy metal pollutants remains a challenge. Amination and carboxylation modified lignins (NCLs) prepared by one-pot hydrothermal method were used as adsorbents for Cr(VI) and Cd(II) removal. The oxygenous groups content in adsorbents was quantitatively analyzed by Boehm titration in which NCL10 (the mass ratio of citric acid: triethylene diamine = 10) possessed a maximum carboxyl group content of 1.22 mmol/g. The Langmuir adsorption isotherm model was the most suitable, with the highest theoretical adsorption capacity of Cr(VI) and Cd(II) of 1298.6 and 103.1 mg/g, respectively. Meanwhile, FT-IR and XPS exhibited that NCL5 surface contained many functional groups beneficial to the removal of Cr(VI) and Cd(II). The contribution of carboxyl and hydroxyl groups to the removal of Cr(VI) and Cd(II) was quantitatively analyzed. After the blocking of carboxyl and hydroxyl groups, the adsorption rate of Cr(VI) and Cd(II) decreased by 26.4 %, 67.7 % and 7.2 %, 43.3 %, respectively. This study provides effective strategies to overcome the limitations of lignin adsorbents for wastewaters containing a wide range of heavy metal pollutants.
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高影响因子
Advanced Sustainable Systems
·
2022
·Vol. 6
·期 7
·2200060
·
IF 6.737
Hengfei Qin,Shipeng Luo,Yan Li,Yifan Zhang,Ruoyu Dong,Yang Zhou,Jing Luo,Yeling Zhu,Feng Jiang
The hydrogen production by water electrolysis has attracted great research interest as a sustainable approach for clean energy production. However, such process is plagued by the use of high-cost precious metal-based catalysts (such as Pt, RuO 2 ). Hereby, the use of a low-cost Nitrogen and Sulfur co-doped carbon-supported cobalt sulfide dual-functional electrocatalyst derived from imidazole modified lignin for overall water splitting is presented. To introduce nitrogen and sulfur heteroatoms in the carbon structure, lignin is modified by imidazolation through thiol-alkynes click reaction. Imidazole-lignin shows a strong chelation tendancy with cobalt salt, and N and the S co-doped cobalt sulfide catalyst (IL-Co@GC-PO) is obtained by pyrolysis. The IL-Co@GC-PO has an oxygen evolution potential of 1.57 V and a hydrogen evolution overpotential of 204 mV at a current density of 10 mA cm −2 . During the overall water splitting process, the IL-Co@GC-PO catalysts require only 1.58 V to reach a current density of 10 mA cm −2 , which is equivalent to the performance of the system composed of the noble metal Pt/C||RuO 2 . This work not only provides a strategy for the preparation of N and S co-doped cobalt sulfide catalysts, but also provides guidance for using lignin as a carbon source to design and develop cheap electrocatalysts.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Qingguo Zhang,Xinyao Tang,Shuangqing Li,Xinyi Ge,Ying Wei,Zheng Xing,Xinyuan Zhang
In the quest for sustainable and environmentally friendly materials, lignin hydrogels have emerged as a revolutionary alternative to traditional synthetic polymers due to their eco-friendliness, low-cost, and biocompatibility. However, the inadequate mechanical properties and poor conductivity limit their applicability in flexible energy storage and electronic devices. This work proposes employing a so called multiple freezing strategy to incorporate lignin/ionic liquid into the dual-cross-linked network of polyvinyl alcohol (PVA) and gelatin (GEL), thereby facilitating the preparation of a multifunctional green composite hydrogel. Through experimental characterizations and theoretical simulations, we elucidated the interactions among the various species. The hydrogen bonds and electrostatic interactions within this hydrogel contribute to its remarkable mechanical properties, high conductivity, and enhanced sensitivity. Leveraging these attributes, we fabricated flexible writing sensors and human motion detection sensors capable of recognizing handwriting and monitoring daily movements. The devices demonstrate excellent stability and anti-fatigue properties, with signal stability maintained after 500 cycles. When utilized as the electrolyte in flexible supercapacitor assembly, the supercapacitor exhibited a specific capacitance of 104.8 F g⁻¹ at a current density of 1 A g⁻¹ , with a capacitance retention rate of 70 % after 5000 cycles. After various degrees of bending and folding, the electrochemical performance remained very stable. This research presents a new candidate materials for environmentally friendly multifunctional hydrogels and paves the way for advancements in flexible energy storage, text recognition, and wearable sensor devices.
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FOOD CHEMISTRY
·
2025
·
IF 9.8
Yu Liu,Di Zhu,Liangyi Zhao,Zhengguo Wu,Yonghua Zheng,Peng Jin
Although the impact of postharvest trans-2-hexenal (E2H) application in maintaining the quality of horticultural products has been widely studied, its effect on fresh common beans and the preservation mechanism remain unexplored. In this study, the impacts of E2H on reactive oxygen species (ROS) and cell wall metabolisms, and lignin biosynthesis in common beans were investigated. Fresh common beans fumigated with E2H (0, 0.5, 1.0, 1.5, and 2.0 μL L −1 ) were stored at 20 ± 1 °C for 12 days. Results showed that 1.0 μL L −1 E2H remarkedly repressed the decline of chlorophyll content to delay the yellowing, maintained ROS homeostasis, modulated cell wall metabolism-related enzyme activities to regulate cell wall components, and inhibited lignin biosynthesis-related enzyme activities to reduce lignin accumulation, thereby alleviating softening and lignification in common beans. These findings indicated that E2H could improve antioxidant activity, delay softening, and attenuate lignification to mitigate the quality deterioration in common beans.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yunpeng Wang,Liancen Li,Hui Yu,Zehan Xie,Rongcheng Mo,Minsheng Lu,Changzhou Chen,Douyong Min,Jinli Chen,Guangfu Qian
Developing highly active lignin carbon-based electrocatalysts for urea electrolysis is critical but remains a considerable challenge. Herein, a self-supported lignin-derived carbon coupling with Mo-doped NiO and NiCo alloy heterojunction (Mo-NiO@NiCo/C) has suitable lattice tensile strain and rapid electron transfer , thereby achieving high catalytic performance for urea electrolysis under large current density . The operando electrochemical impedance results demonstrate that Mo-NiO@NiCo/C undergoes an indirect oxidation step during the urea oxidation reaction (UOR) and follows the Volmer-Heyrovsky mechanism during the hydrogen evolution reaction (HER). Consequently, among all prepared catalysts, Mo-NiO@NiCo/C exhibits the best UOR ( E 10/500/1000 = 1.278/1.381/1.430 V) and HER ( E −10/−500/−1000 = −38/−262/−353 mV) activity in 1.0 M KOH with 0.5 M urea solution. In a UOR//HER electrolysis cell, Mo-NiO@NiCo/C can obtain the potential of 1.313 and 1.607 V at 10 and 1000 mA cm −2 . Meanwhile, benefiting from the self-supported lignin-derived mesoporous carbon structure , it can operate stably for 100 h at 1000 mA cm −2 . This work presents an efficient lignin-derived carbon-based catalyst for urea electrolysis under ampere-level current density and details a practicable method for improving the utilization rate of lignin-derived carbon.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Tong Luo,Chuanwei Lu,Ji Qi,Chunpeng Wang,Fuxiang Chu,Jifu Wang
Hot-melt adhesives synthesized from sustainable resource have attracted increasing attention in fields of home decoration, handicraft production, automotive industries, etc., due to their free of volatile organic compounds (VOCs) and environmentally friendly advantages. However, it is still challenging to fabricate super-tough and heat-resistant hot-melt adhesives with utilization of the inherited properties of sustainable resource as feedstock. Herein, a combination of photoinduced metal-free atom transfer radical polymerization (ATRP) and Diels-Alder (DA) reaction was applied to prepare lignin-derived elastomers for super-tough and high temperature-resistant hot-melt adhesives. Firstly, photoinduced metal-free ATRP of lauryl methacrylate (LMA) derived from fatty acids and furfuryl methacrylate (FMA) derived from furfural, were employed to fabricate sustainable well-defined multi-arm lignin-graft copolymers bearing furfuryl groups with the aid of lignin based macro-initiator (L-Br). The photoinduced metal-free ATRP in this work could be activated and deactivated by an “ON–OFF” ultraviolet (UV) light switch, and successfully achieved the precise control over the molecular weight and composition of lignin-graft copolymers. Then, Diels-Alder (DA) reaction was applied to functionalize the lignin-graft copolymers with dynamic crosslinked network and obtain the lignin-derived elastomers. Benefiting from the multi-arm structure and the dynamic crosslinked network, these lignin-derived elastomers exhibited favorable mechanical property, thermal stability, shape memory, self-healing and recycled properties. In addition, the lignin-derived elastomers could be used as hot-melt adhesives and their lap shear strengths could reach 5.95 MPa, while being bonded with aluminum plates. Moreover, the steel plate bonded with lignin-derived elastomers could remain stable even at 100 °C. We believe that this work will offer a new approach for designing lignin-derived elastomers towards sustainable, strong, super-tough and high-temperature-resistant hot-melt adhesives.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Huirong Zhang,Lin Luo,Zixiong Zhao,Yi Shen,Jinglei Cui,Xiaokai Shi,Xiaoliang Han
The production of high-performance activated carbon (AC) is recognized as an essential strategy for the effective utilization of lignin resources. In this work, the N-doped AC was successfully prepared by blending sodium lignosulfonate (SL) and different ratios of FeCl 3 through one-pot strategy. The AC structure evolution and performance were obtained by a series of characterization and tests. The results showed that, during the activation process, FeCl 3 first complexed with urea and catalyzed the depolymerization of SL, and the rapid pore development was mainly caused by the template, including formed FeCl 2 , Na 2 Fe 3 Cl 8 and Na 6 FeCl 8 . The ratio of FeCl 3 /SL adjusts the AC physicochemical texture. AC-3 processed a super total specific surface area and pore volume, respectively up to 2048 m 2 /g and 1.47 cm 3 /g. Meanwhile, AC-2 showed a higher nitrogen content of 11.4 %. The as-prepared AC shows super desulfurization, denitrification and Cr (Ⅵ) removal ability. AC-2 displayed maximum sulfur capacity and NO conversion, up to 199.1 mg/g and 42.4 %. This enhanced performance is primarily attributed to the pore structure induced by FeCl 3 activation, which provides a foundation for adsorption and catalytic processes, further augmented by the increased active sites due to nitrogen doping. AC-3 achieved an extremely high Cr (VI) adsorption capacity, up to 386.2 mg/g, which was primarily attributed to the redox effect of N-containing and O-containing groups on Cr (VI), in addition, the effect of physical adsorption including pore structure is not neglectable. This study highlights the significant potential of environmentally friendly lignin-based porous carbon materials for removing contaminants in both gas and liquid phases.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Yaohong Zhou,Wenqi Wang,Yujing Jin,Peng Wang,Suqin Wu,Changxi Deng,Wanming Xiong,Xiaohua Zhang
Developing high-performance acid-base catalysis over perovskite for alcohol aerobic oxidation has received increasing attention, but the fundamental understanding of its surface acid-base property and performance relationship remains largely unknown. Accordingly, a series of LaFeO 3 perovskites were fabricated via modified Pechini approach with the addition of different chelating agents to modulate their respective acid-base amount and oxygen vacancy concentration, which subsequently were employed in the aerobic oxidation of vanillyl alcohol (a lignin model), to generate vanillin for elucidating the relationships between the catalytic activity of LaFeO 3 perovskite and its acid-base property as well as oxygen vacancy. The results demonstrated that existence of non-linear relationships between the vanillin yield and the acid-base amount as well as oxygen vacancy concentration of LaFeO 3 catalyst. Moreover, neither acid-base sites nor oxygen vacancies were the solely factors affecting the activity of LaFeO 3 perovskite towards vanillyl alcohol oxidation for vanillin production. Mechanism studies proclaimed that the reactive oxygen species derived from the adsorption of molecule oxygen on oxygen vacancies generated by anion defects combing with Lewis acid sites (Fe 3+ /Fe 2+ ) to yield FeO x active pairs, which jointly dominated the pathway for vanillyl alcohol oxidation to produce vanillin. Overall, this work offers guidance for designing effective perovskite-based catalysts for lignin conversion to produce value-added chemicals by selectively modulating its acid-base property and oxygen vacancy.
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高影响因子
Journal of Integrative Agriculture
·
2025
·
IF 4.4
Lingfang Ran,Yaohua Li,Long Chen,Tong Mo,Nian Liu,Shijia Xu,Yucheng Su,Chuannan Wang,Aimin Liang,Jianyan Zeng,Wanting Yu,Jie Kong,Yuehua Xiao
Naturally colored cotton (NCC) represents a kind of eco-friendly and sustainable textile material. Limited colors and inferior yield and quality are the major obstacles to the wide application of NCCs. The present work aimed to generate new colored cotton by synthesizing and accumulating anthocyanins in fibers. Two anthocyanin regulatory genes Lc and GhPAP1D were fused and specifically expressed in fibers of the secondary cell wall (SCW) stage. The transgenic fibers exhibited pronounced purplish-red color at 20 to 30 DPA (days post anthesis), and reddish-brown color at maturation. Meanwhile, expressing Lc and GhPAP1D led to reduced elongation rate and impaired SCW deposition in fibers, finally decreased fiber strength and length, and low lint percentage at maturation. Metabolomic and transcriptomic analyses indicated that the whole flavonoid pathway was significantly up-regulated, and multiple flavonoids, including anthocyanins, proanthocyanidins and flavonols, were accumulated in developing and mature fibers. It was also found that lignin biosynthesis and accumulation were significantly increased in fibers of the SCW synthesis stage. Our results provided a feasible strategy to promote anthocyanin synthesis and accumulation in cotton fibers, and also its side effects on fiber coloration and development, which laid the foundation for future NCC color innovation.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Xiang Li,Ting Wu,Yawei Zhu,Qingwen Tian,Qiang Yang,Guigan Fang
Photocracking of lignin β–O–4 bonds is a green approach for the high-value modification of lignin. Graphitic carbon nitride (g-C 3 N 4 ) that can photocleave the β–O–4 bond is presently the only stable, metal-free photocatalyst owing to the residual metal ions generated due to photocorrosion of metal sulfides. Herein, g-C 3 N 4 with a N–C 3 vacancy structure is prepared by etching site–engineering strategy based on the protection of C–N=C structure by chlorine atom. The N–C 3 vacancy structure can reduce the transport path of the photogenerated electrons by tuning the conduction band (CB) region to the edge of the photocatalyst, which impedes the critical complexation of the photogenerated electron–hole pairs and enhances the photoelectric conversion efficiency five-fold. Combined with the unique chemisorption capacity (137.82 kJ/mol) of N–C 3 vacancies for oxygen, the g-C 3 N 4 photocatalysts with N–C 3 vacancy structure can generate 9.6-fold higher superoxide radicals and 13-fold higher lignin β–O–4 bond photocleavage efficiency lignin compared with untreated g-C 3 N 4 . Based on the reaction enthalpy changes and free energies investigated through simulations, a route of lignin C α –C β bonds being oxidized and dehydrogenated twice by photogenerated cavities is proposed for the first time. This work reveals the relation between the properties of g-C 3 N 4 and the photocleavage efficiency of lignin β–O–4 bonds.
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高影响因子
GREEN CHEMISTRY
·
2024
·
IF 9.3
Weisheng Yang,Danning Wang,Shu Feng,Shuijian He,Huining Xiao,Hongqi Dai,Jingquan Han
It is critical to prepare self-supported carbonaceous electrode materials that enable high-mass loading and efficient ion/electron transport through a simple and sustainable method. Herein, for the first time, heteroatom-doped (O, N, and S) hierarchically porous thick bulk carbon is synthesized by carbonizing Pleurotus eryngii (PE) and lignosulfonate (LS) mixed precursors. After carbonization, the generated thick bulk carbon consists of interconnected macropores at the micrometer scale, with micropores and mesopores densely covering the pore walls. The carbon material displays a large specific surface area ranging from 315.5 to 960.2 m2 g−1 and is uniformly doped with O (14.8–19.1%), N (1.73–2.97%) and S (1.20–1.94%), endowing it with excellent ion transport and charge storage properties. As a result, the obtained thick bulk carbon electrode with a mass loading of 58.0 mg cm−2 achieves an outstanding capacitance of 25.0 F cm−2 (112.0 F cm−3) at 10 mA cm−3 and a superior rate capability of 14.3 F cm−2 (66.9 F cm−3) at 200 mA cm−3. The assembled symmetric supercapacitor device delivers a high areal energy density of 2.56 mWh cm−2 at a power density of 0.64 mW cm−2 with an excellent stability of 91.1% after 15 000 cycles at 50 mA cm−2. This facile and green synthesis strategy provides new carbonaceous electrode design concepts for high-energy-density storage.
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高影响因子
Journal of Bioresources and Bioproducts
·
2025
·
IF 13
Shuang Qi,Hui Yang,Tian Fang,Tingwei Zhang,Bo Jiang,Sehrish Manan,Chaofeng Zhang,Peng Wang,Caoxing Huang,Wenjuan Wu,Yongcan Jin
Lignin, a natural and renewable aromatic biopolymer, has gained attention in various biomedical applications due to its diverse structure, excellent biocompatibility, and antioxidant activity. However, the effects of lignin with tailored molecular weight on treating type 2 diabetes mellitus (T2DM) remain largely unexplored. In this study, a series of heterogeneous natural phenolic kraft lignin (KL) with tailored molecular weights, derived through an anti-sugar strategy, were prepared by continuous fractionation. The lignin fractions were categorized as F1, F2, and F3, corresponding to high, medium, and low molecular weights, respectively. Their therapeutic effects on T2DM were evaluated using a fractionated lignin culture cell model and intravenous injection into the tail vein of diabetic rats. The results demonstrated that lignin's protective effects in attenuating T2DM progression were molecular weight-dependent. Specifically, F3 reduced fasting blood glucose, reversed insulin resistance, and improved insulin sensitivity by mitigating oxidative stress and inflammatory responses. Mechanistic investigations revealed that F3 positively regulated glucose and lipid metabolism, inhibited hepatic gluconeogenesis, and enhanced hepatic glycogen synthesis by activating the insulin receptor substrate 1/phosphoinositide 3-kinase/protein kinase B (IRS1/PI3K/AKT) signaling pathway. Results revealed that lignin exerts its therapeutic effects on T2DM in a molecular weight-dependent manner, with IRS1/PI3K/AKT signaling as a potential underlying mechanism. This highlights lignin with a defined molecular weight as a promising candidate for T2DM treatment.
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高影响因子
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