Waste to wealth: Facile activation of red mud waste and insights into industrial reactive dye removal from wastewater

Singh, Vijay Kumar; Sett, Ayantika; Karmakar, Sankha

doi:10.1016/j.cej.2023.148373

Cited by 15 publications

(1 citation statement)

References 71 publications

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“…Furthermore, the application of metal catalysts in the degradation of organic dyes has aroused more and more concern, particularly reactive dyes. Reactive dyes are widely used in textiles, papermaking, and cosmetics industries . However, their persistent nature and potential toxicity pose serious environmental issues when discharged into the environment.…”

Section: Introductionmentioning

confidence: 99%

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

Wang,

Liu,

Gong

et al. 2024

Langmuir

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The synergistic effect between bimetallic catalysts has been confirmed as an effective method for activating persulfate (PMS). Therefore, we immobilized copper–cobalt on chitosan to prepare bimetallic carbon catalysts for PMS activation and degradation of reactive dyes. Experimental results demonstrate that the CuCo-CTs/PMS catalytic degradation system exhibits excellent degradation performance toward various types of reactive dyes (e.g., Ethyl violet, Chlortalidone, and Di chlorotriazine), with degradation rates reaching 90% within 30 min. CuCo-CTs exhibit high catalytic activity over a wide pH range of 3–11 at room temperature and under static conditions, degrading over 92% of RV5 within 60 min. ultraviolet–visible (UV–vis) spectroscopy and color changes in the dye solution confirm the effective degradation of RV5, with a degradation rate of 97.2% within 10 min. Additionally, CuCo-CTs demonstrate good stability and reusability, maintaining a degradation rate of 92.8% after eight cycles. Kinetic studies indicate that the degradation follows pseudo-first-order kinetics. Furthermore, based on the results of radical scavenging experiments, the catalytic degradation mechanism of the dye involves both radical and nonradical pathways, with 1O2 identified as the primary active species. This study provides insights and experimental evidence for the application of persulfate oxidation in the treatment of dyeing wastewater.

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Section: Introductionmentioning

confidence: 99%

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

Wang,

Liu,

Gong

et al. 2024

Langmuir

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CO₂‐Sourced Polymer Dyes for Dual Information Encryption

Niu,

Liu,

et al. 2024

Small Methods

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Large amounts of small molecule dyes leak into the ecosystems annually in harmful and unsustainable ways. Polymer dyes have attracted much attention because of their high migration resistance, excellent stability, and minimized leakage. However, the complex synthesis process, high cost, and poor degradability hinder their widespread application. Herein, green and sustainable polymer dyes are prepared using natural dye quercetin (Qc) and CO2 through a one‐step process. The CO2‐sourced polymer dyes show strong migration resistance, high stability, and can be degraded on demand. Additionally, the CO2‐sourced polymer dyes showed unique responses to Zn2+, leading to significantly enhanced fluorescence, highlighting their potential for information encryption/decryption. The CO2‐sourced polymer dyes can solve the environmental hazards caused by small molecule dye leakage and promote the carbon cycle process. Meanwhile, the one‐step synthesis process is expected to achieve sustainable and widespread utilization of CO2‐sourced polymer dyes.

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Experimental Study on Evaluation of Pumpkin Waste in Removal of Textile Dyes: Preparation, Characterization, Adsorption, and Desorption

Dursun,

Dandil,

Acikgoz

2024

Water Air Soil Pollut

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Waste to wealth: Facile activation of red mud waste and insights into industrial reactive dye removal from wastewater

Cited by 15 publications

References 71 publications

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

CO₂‐Sourced Polymer Dyes for Dual Information Encryption

Experimental Study on Evaluation of Pumpkin Waste in Removal of Textile Dyes: Preparation, Characterization, Adsorption, and Desorption

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Waste to wealth: Facile activation of red mud waste and insights into industrial reactive dye removal from wastewater

Cited by 15 publications

References 71 publications

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

Cu/Co Bimetallic Carbon Catalyst as a Highly Efficient Promoter for Reactive Dyes Degradation with PMS

CO2‐Sourced Polymer Dyes for Dual Information Encryption

Experimental Study on Evaluation of Pumpkin Waste in Removal of Textile Dyes: Preparation, Characterization, Adsorption, and Desorption

Contact Info

Product

Resources

About

CO₂‐Sourced Polymer Dyes for Dual Information Encryption