Degradation of textile dyes from aqueous solution using tea-polyphenol/Fe loaded waste silk fabrics as Fenton-like catalysts

Mia, Shipan; Yao, Ping; Zhu, Xiaowei; Lei, Xue Fei; Xing, Tieling; Chen, Guoqiang

doi:10.1039/d0ra10727a

Cited by 22 publications

(14 citation statements)

References 75 publications

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“…In summary, a 3D porous cellulose macrosphere with high specic surface area has been successfully prepared and CuS was stably immobilized on the porous cellulose macrosphere with high capacity. The prepared CuS@CM exhibited excellent catalytic activity in the presence of a small amount of H 2 O 2 and a wide range of pH applicability (5)(6)(7)(8)(9)(10)(11) for the degradation of MB and MO dyes. Aer several cycles of catalysis, more than 90% of the initial activity still remained and the loaded CuS nanoparticles did not suffer any serious damage, showing good recycling stability.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the effects of different reaction conditions on the degradation efficiency were studied. Catalytic experiments were carried out at different pH values (3)(4)(5)(6)(7)(8)(9)(10)(11), H 2 O 2 amounts (0-1 mL), temperatures (30-60 C) and dye concentrations (10-40 mg L À1 ). Other experimental conditions were the same as above.…”

Section: Evaluation Of Dye Degradation By Cus@cm Biocatalystsmentioning

confidence: 99%

“…In particular, the treatment of dye wastewater containing a large number of persistent and toxic substances with various chemical structures is a difficult and challenging task. 2,3 To this end, various wastewater treatment technologies of adsorption, 4 photocatalytic degradation, 5 ozonization, 6 electrochemistry, 7 biological methods, 8 and others, 9,10 have been used to treat dye wastewater. [11][12][13] However, most of these methods have a lower removal efficiency and high processing costs.…”

Section: Introductionmentioning

confidence: 99%

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In situ growth of CuS NPs on 3D porous cellulose macrospheres as recyclable biocatalysts for organic dye degradation

Sun

Zhong

et al. 2021

RSC Adv.

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Section: Discussionmentioning

confidence: 99%

Section: Evaluation Of Dye Degradation By Cus@cm Biocatalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In situ growth of CuS NPs on 3D porous cellulose macrospheres as recyclable biocatalysts for organic dye degradation

Sun

Zhong

et al. 2021

RSC Adv.

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“…Absorption spectra of MB aqueous solutions, at a wavelength of 664 nm, were collected using a UV–Vis spectrophotometer at specific intervals, which revealed the changes in MB content after irradiation. The dye degradation efficiency was calculated by the formula below [ 37 ]:

where C 0 and C are MB contents at times 0 and t , respectively.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of Bi2MoO6 Nanosheets/TiO2 Nanorod Arrays Heterostructures for Enhanced Photocatalytic Performance under Visible-Light Irradiation

Zhou

et al. 2022

Nanomaterials

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Bi2MoO6/TiO2 heterostructures (HSs) were synthesized in the present study by growing Bi2MoO6 nanosheets on vertically aligned TiO2 nanorod arrays using a two-step solvothermal method. Their morphology and structure were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. Excellent visible-light absorption was observed by UV–Vis absorption spectroscopy, which was attributed to the presence of the Bi2MoO6 nanosheets with a narrow-band-gap. The specific surface area and pore volume of the photocatalysts were significantly increased due to the hierarchical structure composed of Bi2MoO6 nanosheets and TiO2 nanorods. The photoluminescence and photoelectrochemical characterizations showed improved separation and collection efficiency of the Bi2MoO6/TiO2 HSs towards the interface charge carrier. The photocatalytic analysis of the Bi2MoO6/TiO2 HSs demonstrated a significantly better methylene blue (MB) degradation efficiency of 95% within 3 h than pristine TiO2 nanorod arrays under visible-light irradiation. After three photocatalytic cycles, the degradation rate remained at ~90%. The improved performance of the Bi2MoO6/TiO2 HSs was attributed to the synergy among the extended absorption of visible light; the large, specific surface area of the hierarchical structure; and the enhanced separation efficiency of the photogenerated electron-hole pairs. Finally, we also established the Bi2MoO6/TiO2 HSs band structure and described the photocatalytic dye degradation mechanism. The related electrochemical analysis and free-radical trapping experiments indicated that h+, ·O2− and ·OH have significant effects on the degradation process.

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“…1,2 The use of synthetic colourants and associated chemicals in traditional dyeing production units is a major source of this problem. The need for sustainable natural colourants [3][4][5][6][7][8] is growing. However, the fastness properties obtained from natural colourants do not always meet colour fastness stability.…”

Section: Introductionmentioning

confidence: 99%

Coloration of flax woven fabrics using Taxus baccata heartwood‐mediated nanosilver

Hasan

Horváth

Kóczán

et al. 2021

Coloration Technology

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Ecological nanosilver-based colours were biosynthesised from the heartwood of European yew (Taxus baccata) trees for the dyeing of flax woven fabrics through the implementation of in situ synthesis protocols. The produced lighter brown yellow to darker brown-yellow coloured nanosilver particles on flax woven fabrics were characterised in terms of morphological observations, metallic compositions, elemental mapping, chemical interactions, the presence of silver nanoparticle (AgNP) concentrations and colour characteristics with associated performances. The presence of AgNPs was clearly observed by morphological studies of the coloured substrates. Quantitative analysis of the products also confirmed the significant presence of AgNPs. The results demonstrate that the uniform dispersions and strong attachments of AgNPs in cellulosic flax woven fabrics are due to surface plasmon resonance characteristics. The incorporation of different concentrations of metallic AgNPs plays a significant role in producing versatile colour appearances on flax woven textiles with improved colour durability. The overall results offer new routes for sustainable structural colourants in the industrial dyeing of cellulosic materials.

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Degradation of textile dyes from aqueous solution using tea-polyphenol/Fe loaded waste silk fabrics as Fenton-like catalysts

Abstract: In this study, waste silk fabrics were modified with tea-polyphenols then loaded with Fe2+ for degradation of dyes.

Cited by 22 publications

References 75 publications

In situ growth of CuS NPs on 3D porous cellulose macrospheres as recyclable biocatalysts for organic dye degradation

In situ growth of CuS NPs on 3D porous cellulose macrospheres as recyclable biocatalysts for organic dye degradation

Fabrication of Bi2MoO6 Nanosheets/TiO2 Nanorod Arrays Heterostructures for Enhanced Photocatalytic Performance under Visible-Light Irradiation

Coloration of flax woven fabrics using Taxus baccata heartwood‐mediated nanosilver

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