Facile synthesis of easily separated and reusable silver nanoparticles/aminated alkaline lignin composite and its catalytic ability

Pang, Yongqiang; Chen, Zhengsong; Zhao, Runan; Yi, Conghua; Qiu, Xueqing; Qian, Yong; Li, Hongming

doi:10.1016/j.jcis.2020.11.113

Cited by 43 publications

(15 citation statements)

References 57 publications

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“…In addition, the selected area electron diffraction (SAED) images (vignettes in Figure S4, Supporting Information) correspond to the diffraction rings of the two materials, indicating that the graphene has scrolled morphologies (Figure S4b, Supporting Information) and the Ag NPs contain polycrystalline metallic silver. [ 18,28 ]…”

Section: Resultsmentioning

confidence: 99%

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

Wang

Jiang

et al. 2022

Adv Materials Technologies

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conductivity, specific surface area, and cycle stability of the material. [2][3][4] Various methods for processing and preparing electrode materials have gained widespread attention among researchers. [5][6][7] Carbon-based materials, such as carbon nanotubes, graphene, and glass carbon, are the most common materials studied and have been researched for use in various electrochemical sensors. [8] Especially, graphene demonstrates excellent detection performance because of its high carrier mobility and chemical stability. In addition, the microscopic morphology of the electrode material has a profound effect on the increase in the surface area of the electrochemical reaction. [9] Researchers have confirmed that metal nanoparticles have an ultrahigh reactive surface area, excellent electrical conductivity, and high catalytic activity; thus, the use of electroplating and electro sputtering to deposit nanoparticles onto the electrode surface during post-processing can further improve the detection limits and sensitivity of the sensor. [3,4,10,11] In recent years, researchers have revealed that laser direct writing is one of the easiest way to prepare graphite materials with controllable morphology and arbitrary patterns. [12] Based on the concept of green development, precursor materials for laser induction have shifted from polymers (such as polyimide and polysulfone membranes) to natural materials that are renewable but more susceptible to ablation. [13] To reduce the thermal ablation of carbon dioxide (CO 2 ) lasers, renewable precursors (wood, paper, and cardboard) were transformed into porous graphene electronics by irradiating them in a reducing gas chamber, adding flame retardant and using multiple scanning methods, respectively. [14,15] Lignin is the main component of the widely used natural precursor materials that can be carbonized. [16] However, the lignin content in natural precursors is unstable. This can lead to incomplete carbonized structures, which can affect the performance of electronics. Lignin is a type of phenylpropane-based composite network aromatic polymer and has abundant hydroxyl, carboxyl groups, and other reducing functional groups, which is often discarded because it cannot be effectively recycled in the papermaking process.The next generation of green electronic products will be flexible, eco-friendly, have arbitrary patterning, and be produced using simple methods. Here, a silver nanoparticles (Ag NPs)-graphite carbon composite-based electrochemical sensor is patterned on a flexible substrate by one-step in situ femtosecond (fs) laser fabrication. Alkali lignin is used as a precursor and nontoxic natural reducing agent to reduce aqueous silver nitrate to produce Ag NPs. The fs laser carbonization process converts lignin into graphite carbon electrodes with diverse three-dimensional (3D) micro/nano morphologies, causing less thermal damage to the Ag NPs and thin substrate. The 3D micro/nano morphologies combined with Ag NPs effectively increase the active surface area, conductivity, and...

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Section: Resultsmentioning

confidence: 99%

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

Wang

Jiang

et al. 2022

Adv Materials Technologies

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“…[19,20] As a natural phenolic polymer, lignin has widely been studied in the preparation of noble metal nanoparticles. [21][22][23][24] However, the uncertain source process of lignin always resulted in the unstable product quality, which limited its attractiveness in practical production. Except for lignin, plant leaf [25] and stem extracts [26] were also reported to prepare the noble metal nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…As a natural phenolic polymer, lignin has widely been studied in the preparation of noble metal nanoparticles [21–24] . However, the uncertain source process of lignin always resulted in the unstable product quality, which limited its attractiveness in practical production.…”

Section: Introductionmentioning

confidence: 99%

γ‐Valerolactone/H₂O‐ Derived Facile Preparation of Lignin‐Based AgNPs to Full Utilization of Lignocellulosic Biomass

Xue

Hao

et al. 2022

ChemistrySelect

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Lignin-based functional material has become an important way to realize the high-value utilization of lignin. However, the unstable performance limited its practical application, resulting from the inherent heterogeneity and uncertain extraction process of lignin. Here, a coupling process of the preparation of lignin-based silver nanoparticles (AgNPs) and carbohydrate refining was presented to realize the facile and stable preparation of AgNPs from lignocellulose, of which γ-Valerolactone (GVL)/H 2 O was used both as the extraction solvent of lignin and the catalyst for AgNPs synthesis in Ag 2 O/lignin system. The reaction rules and behaviors of AgNPs were systematically studied. Meanwhile, the separation rate of hemicellulose could exceed 90 % and a high-purity cellulose of 95.12 % was obtained. The enzymatic hydrolysis efficiency of residual cellulose from corncob was close to 71 %. The reliability of different biomass sources was also verified. This work provided a potential solution for improving the economic benefits of lignocellulose refining.

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“…According to statistics, 700,000 tons of lignin was annually produced from the pulp and paper industry [ 17 ]. Unfortunately, there are still great restrictions on the value-added utilization of lignin [ 18 , 19 ], and more than 95% of lignin is not effectively utilized, resulting in environmental pollution [ 20 ]. Alkali lignin (AL), as a by-product of alkali pulping, can cause serious pollution of the water environment and pose a threat to human health if humans cannot properly handle it.…”

Section: Introductionmentioning

confidence: 99%

Dual-Modified Lignin-Assembled Multilayer Microsphere with Excellent Pb2+ Capture

Zhang

Chen

2022

Polymers

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With the continuous research on lignin-based sorbents, there are still limitations in the research of spherical sorbents with a high adsorption capacity for Pb2+. In order to solve the problem of low adsorption effect, alkali lignin (AL) was modified and assembled to increase the adsorption active sites. In this work, we used dual-modified lignin (DML) as a raw material to assemble a singular lignin-based multilayer microsphere (LMM) with sodium alginate (SA) and dopamine. The prepared adsorbent had various active functional groups and spherical structures; the specific surface area was 2.14 m2/g and the average pore size was 8.32 nm. The adsorption process followed the Freundlich isotherm and the second-order kinetic model. Therefore, the LMM adsorbed Pb2+ ascribed by the electrostatic attraction and surface complexation; the adsorption capacity was 250 mg/g. The LMM showed a selective adsorption performance for Pb2+ and the adsorption capacity followed the order Pb2+ (187.4 mg/g) > Cu2+(168.0 mg/g) > Mn2+(166.5 mg/g). After three cycles, the removal efficiency of Pb2+ by the LMM was 69.34%, indicating the reproducibility of LMM.

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Facile synthesis of easily separated and reusable silver nanoparticles/aminated alkaline lignin composite and its catalytic ability

Cited by 43 publications

References 57 publications

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

γ‐Valerolactone/H₂O‐ Derived Facile Preparation of Lignin‐Based AgNPs to Full Utilization of Lignocellulosic Biomass

Dual-Modified Lignin-Assembled Multilayer Microsphere with Excellent Pb2+ Capture

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Facile synthesis of easily separated and reusable silver nanoparticles/aminated alkaline lignin composite and its catalytic ability

Cited by 43 publications

References 57 publications

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

Femtosecond Laser One‐Step Direct Writing Electrodes with Ag NPs‐Graphite Carbon Composites for Electrochemical Sensing

γ‐Valerolactone/H2O‐ Derived Facile Preparation of Lignin‐Based AgNPs to Full Utilization of Lignocellulosic Biomass

Dual-Modified Lignin-Assembled Multilayer Microsphere with Excellent Pb2+ Capture

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Product

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γ‐Valerolactone/H₂O‐ Derived Facile Preparation of Lignin‐Based AgNPs to Full Utilization of Lignocellulosic Biomass