Superior dye degradation and adsorption capability of polydopamine modified Fe3O4-pillared bentonite composite

Ain, Qurat Ul; Rasheed, Usman; Muhammad, Yaseen; Zhang, Hanbing; Tong, Zhangfa

doi:10.1016/j.jhazmat.2020.122758

Cited by 169 publications

(46 citation statements)

References 72 publications

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“…The Freundlich isotherm model describes the reversible and non-ideal adsorption behavior and eliminates the limitation of monolayer adsorption [ 38 , 47 ]. This empirical model relies on a heterogenous and multilayer adsorption process and is described by Equation (3) [ 48 , 49 ]. q e = k f C e (1/n) where, k f (L/mg) and n are Freundlich isotherm constants which signify the biosorption capacity and intensity, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Assessing the Aflatoxins Mitigation Efficacy of Blueberry Pomace Biosorbent in Buffer, Gastrointestinal Fluids and Model Wine

Rasheed

Ain

Muhammad

et al. 2020

Toxins

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Blueberry (BB) and cherry pomace were investigated as new biosorbents for aflatoxins (AFs) sequestration from buffered solutions, gastrointestinal fluids and model wine. Among the tested biosorbents, BB exhibited the maximum adsorption performance for AFs and hence was further selected for the optimization of experimental parameters like pH, dosage, time and initial concentration of AFs. Material characterizations via scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, N2 adsorption-desorption isothermal studies, thermogravimetric analysis (TGA) and X-ray photon spectroscopy (XPS) techniques revealed useful information about the texture and chemical composition of the biosorbents. The fitting of isothermal data with different models showed the model suitability trend as: Sips model > Langmuir model > Freundlich model, where the theoretical maximum adsorption capacity calculated from the Sips model was 4.6, 2.9, 2.7 and 2.4 mg/g for AFB1, AFB2, AFG1 and AFG2, respectively. Kinetics study revealed the fast AFs uptake by BB (50–90 min) while thermodynamics studies suggested the exothermic nature of the AFs adsorption from both, single as well as multi-toxin buffer systems, gastrointestinal fluids and model wine. Accrediting to the fast and efficient adsorption performance, green and facile fabrication approach and cost-effectiveness, the newly designed BB pomace can be counted as a promising contender for the sequestration of AFs and other organic pollutants.

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Section: Resultsmentioning

confidence: 99%

Section: Isothermal Behavior Of Aflatoxins Adsorption Over Blueberrymentioning

confidence: 99%

Assessing the Aflatoxins Mitigation Efficacy of Blueberry Pomace Biosorbent in Buffer, Gastrointestinal Fluids and Model Wine

Rasheed

Ain

Muhammad

et al. 2020

Toxins

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“…Fenton-like heterogenous catalysts enabling dye degradation under visible light, waste-originating catalysts, proposal of degradation mechanism [97][98][99][100][101][102] Electro-Fenton…”

Section: Fentonmentioning

confidence: 99%

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

2021

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In the last 3 years alone, over 10,000 publications have appeared on the topic of dye removal, including over 300 reviews. Thus, the topic is very relevant, although there are few articles on the practical applications on an industrial scale of the results obtained in research laboratories. Therefore, in this review, we focus on advanced oxidation methods integrated with biological methods, widely recognized as highly efficient treatments for recalcitrant wastewater, that have the best chance of industrial application. It is extremely important to know all the phenomena and mechanisms that occur during the process of removing dyestuffs and the products of their degradation from wastewater to prevent their penetration into drinking water sources. Therefore, particular attention is paid to understanding the mechanisms of both chemical and biological degradation of dyes, and the kinetics of these processes, which are important from a design point of view, as well as the performance and implementation of these operations on a larger scale.

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“…In nature, mussels can be strongly adsorbed on the surface of various objects which is mainly due to its catechol structure and amino group 10–12 . Similarly, polydopamine, during dopamine self‐polymerization, can also adhere to the surface of various objects based on a similar adhesion mechanism to that of mussel mucin 13 . When the hydrophobic object is immersed in the polydopamine solution, the indole or benzene ring structure in the polydopamine solution will form a strong interaction with the hydrophobic surface and attaches to the surface of the object.…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12] Similarly, polydopamine, during dopamine self-polymerization, can also adhere to the surface of various objects based on a similar adhesion mechanism to that of mussel mucin. 13 When the hydrophobic object is immersed in the polydopamine solution, the indole or benzene ring structure in the polydopamine solution will form a strong interaction with the hydrophobic surface and attaches to the surface of the object. When the hydrophilic object is immersed in the solution of polydopamine, the phenolic hydroxyl group of polydopamine will form a hydrogen bond with the hydroxyl group on the surface of hydrophilic object.…”

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confidence: 99%

Performance of biomimetic coating modified fiber incorporated styrene butadiene styrene modified asphalt

Huang

et al. 2020

J of Applied Polymer Sci

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This study reports the effect of polydopamine bionic coating and γ-methacryloxypropyltrimethoxysilane (KH570) composite modified polyacrylonitrile (PAN) fiber as a secondary modifier on the performance of styrenebutadiene-styrene (SBS) modified asphalt. Dynamic shear rheometer test indicated the complex shear modulu, storage modulus, and loss modulus of modified PAN (KD-PAN) incorporated SBS modified asphalt was increased by 12.4, 20.5, and 11.2%, respectively compared with PAN/SBS modified asphalt. The master curve of G * of fiber/SBS composite modified asphalt shows that the deformation resistance of KD-PAN/SBS modified asphalt is greater than that of PAN/SBS modified asphalt in the entire loading frequency range. The cone penetration test showed significantly enhanced shear strength of KD-PAN/SBS modified asphalt. The adhesion work test results and SEM images of interface between fiber and SBS modified asphalt revealed that the adhesion effect of KD-PAN and SBS modified asphalt is better than that of PAN and SBS modified asphalt. SEM and AFM images of fiber further showed that the fiber surface becomes rough after modification. The increased surface

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Superior dye degradation and adsorption capability of polydopamine modified Fe3O4-pillared bentonite composite

Cited by 169 publications

References 72 publications

Assessing the Aflatoxins Mitigation Efficacy of Blueberry Pomace Biosorbent in Buffer, Gastrointestinal Fluids and Model Wine

Assessing the Aflatoxins Mitigation Efficacy of Blueberry Pomace Biosorbent in Buffer, Gastrointestinal Fluids and Model Wine

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

Performance of biomimetic coating modified fiber incorporated styrene butadiene styrene modified asphalt

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