Preparation of nano disperse dyes using sulfomethylated lignin: Effects of sulfonic group contents

Tang, Qianqian; Chen, Qing; Zhou, Mingsong; Yang, Dongjie

doi:10.1016/j.ijbiomac.2023.123605

Cited by 19 publications

(5 citation statements)

References 37 publications

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“…However, the weak surface bonding in lignin carbon materials hampers the structural stability of these composites. Lignosulfonate has an amphiphilic structure due to its hydrophobic benzene rings and hydrophilic sulfonate groups, making it widely used as a dispersant and surfactant. , The π–π interaction between lignosulfonate and graphene oxide has been demonstrated by Li et al and Ma et al to effectively disperse graphene and prevent sheet stacking.…”

Section: Introductionmentioning

confidence: 99%

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Fu,

Qiu,

Yang

2024

Ind. Eng. Chem. Res.

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Carbon/transition metal oxide composites exhibit promising potential as electrode materials for energy storage, but regulating their interfacial composite structures remains a formidable challenge. In this work, we develop a lignosulfonate-assisted synthesis strategy to fabricate a porous carbon-supported MnO 2 composite (LSC/MnO 2 -2) with a robust interface for asymmetric supercapacitors (ASCs). The functionalized lignin porous carbon, achieved through π−π interactions with lignosulfonate, exhibited improved dispersibility, thereby facilitating the deposition of MnO 2 onto the carbon matrix. Consequently, LSC/MnO 2 -2 demonstrates uniform MnO 2 loading and enhanced interfacial bonding. The robust interaction between Mn sites and the lignosulfonate-functionalized carbon substrate can promote electron transfer and ion transfer kinetics, effectively activating the electrochemical activity of MnO 2 . The as-prepared LSC/MnO 2 -2 demonstrates high specific capacitances of 750 F/g at 0.5 A/g and 400 F/g at 10.0 A/g in a 1 M KOH electrolyte. Furthermore, the assembled ASC exhibits an outstanding energy density of 54.4 Wh/ kg at 998.2 W/kg and excellent cyclic stability (94.7% retention over 10,000 cycles at 2.0 A/g). This study presents an alternative method to precisely control the deposition of metal oxides onto carbon materials, aiming to enhance the performance of carbon composites.

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Section: Introductionmentioning

confidence: 99%

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Fu,

Qiu,

Yang

2024

Ind. Eng. Chem. Res.

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“…The weight-averaged molecular weight of the lignosulfonate polymers is from 5 to 400 kDa compared to 1 to 5 kDa for the kraft lignin . Currently, lignin is mostly used to produce bioenergy but has also been studied to make fuel cell anode, supercapacitor cathode, flocculant, thermoplastic adhesive, biodegradable composites, biodegradable packaging, dye dispersant, and adsorbents for the removal of heavy metals and dyes from textile dyeing effluent. Lignin is biodegradable under a compost environment by thermophilic microfungi and actinomycetes, and the optimum temperature for thermophilic fungi is 40–50 °C, which is also the optimum temperature for lignin degradation in compost …”

Section: Introductionmentioning

confidence: 99%

Valorization of Sulfonated Kraft Lignin as a Natural Dye for the Sustainable Dyeing of Wool Fabrics: Effect of Peroxide Oxidation

Hassan

2023

ACS Sustainable Chem. Eng.

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Lignin is an abundant and complex biopolymer with inherent color but has only a few applications. It has the potential to replace synthetic acid dyes for the coloration of wool fibers in brown shades, as traditional dyeing with acid dyes produces toxic effluent needing costly treatment. In this work, the valorization of sulfonated lignin was explored by using it as a natural dye for the coloration of wool fabrics alone and with hydrogen peroxide (H 2 O 2 ). The dyed fabrics were characterized by reflectance and diffuse reflectance spectroscopies to assess the color yield and ultraviolet (UV) protection performance, respectively. The dyed fabrics exhibited reasonably good color yield and satisfactory colorfastness to washing (Grade 3/4), which improved to Grade 4 by the oxidation treatment with H 2 O 2 . The scanning electron microscopy (SEM) images show that when fabrics are dyed alone with lignin, deposition of lignin particles is visible on the fiber surface, but with hydrogen peroxide, no deposition of lignin is visible on the fiber surface, and the color strength of the fabric became almost double. The UV light transmission through the fabric decreased from 6.73 and 13.23% at 311 and 365 nm to 2.19 and 5.23%, respectively. The attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectra of the dyed fabrics showed increased absorption of lignin sulfonate by the fabric, suggesting depolymerization of lignin by H 2 O 2 to smaller macromolecules easing absorption into the wool fiber. Lignin sulfonate could be a cheap and sustainable alternative to harmful synthetic dyes for producing brown shades on wool fabric.

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“…At the end of the nineteenth century, many natural dyes have been largely replaced by synthetic dyes that were developed, provided a broader range of color possibilities and more colorfast and less expensive. [40,41] In addition to that natural colorants (eco-friendly dye) need large quantities of raw material to obtain the same depth of color synthetic dyes; limited success in coloration of synthetic fibers (polyester has a 45 % share of the global textile market); nearly all natural dyes need application with a mordant (salts of Cr, Sn, Zn, Cu, Al, Fe) to secure sufficient wash and light fastness. [42,43] However, the most frequently reported causes of unexpected side effects of clothes are textile dyes, and some dyes formerly used for food like Butter Yellow are known to be carcinogenic.…”

Section: Introductionmentioning

confidence: 99%

Bimetallic CuO−ZnO Hybrid Nanocomposite Materials for Efficient Remediation of Environmental Pollutants

Rudresha

Hussain

Ravikumar³

et al. 2023

ChemistrySelect

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Pure CuO and 2‐Dimentional CuO−ZnO nanocomposites (NCs) were effectively prepared by an ultrasound‐assisted probe sonication route for different ratios of CuO and ZnO, and the multifunctional properties were investigated by the application of the advanced methods. XRD (X‐ray diffraction) patterns revealed a crystallite size (D) range of 25 to 31 nm for pure CuO and CuO−ZnO NCs. According to calculations, the energy band gap value (Eg) for the NCs is between 2.15 and 2.48 eV. Under UV light irradiation, the photocatalytic degradation of pure CuO and CuO−ZnO NCs on Direct Green (DG) and Fast Blue (FB) dyes was assessed. 60 mg of the catalyst was added to 20 ppm solutions of DG and FB dye. The stock solution of the dyes was prepared 10, 15, 20 and 25 ppm of 250 ml dye solution. Electrochemical analysis using cyclic voltammetry revealed improved redox potential output in the electrode crafted with graphite powder in 0.1 N HCl electrolyte solution. These NCs were used because of their capacity to detect an extremely dangerous chemical like arsenic. The constructed electrode‘s lowest limit of detection was determined to be 110–3 mol/L. In general, vertical linearity was seen in all of the prepared nano‐electrodes, especially above 150 ohms with real axis for pure CuO but beyond 100 ohms for doped electrodes. Based on our study, we conclude that the CuO and ZnO NCs, containing 10 % of ZnO, were the most effective photocatalyst for DG and FB dyes and electrochemical sensor for Arsenic.

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Preparation of nano disperse dyes using sulfomethylated lignin: Effects of sulfonic group contents

Cited by 19 publications

References 37 publications

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Valorization of Sulfonated Kraft Lignin as a Natural Dye for the Sustainable Dyeing of Wool Fabrics: Effect of Peroxide Oxidation

Bimetallic CuO−ZnO Hybrid Nanocomposite Materials for Efficient Remediation of Environmental Pollutants

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Preparation of nano disperse dyes using sulfomethylated lignin: Effects of sulfonic group contents

Cited by 19 publications

References 37 publications

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO2 Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO2 Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Valorization of Sulfonated Kraft Lignin as a Natural Dye for the Sustainable Dyeing of Wool Fabrics: Effect of Peroxide Oxidation

Bimetallic CuO−ZnO Hybrid Nanocomposite Materials for Efficient Remediation of Environmental Pollutants

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Product

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Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors

Lignosulfonate-Assisted Synthesis of Porous Carbon-Supported MnO₂ Composites with Reinforced Interface Bonding for High-Performance Asymmetric Supercapacitors