A strategy for the efficient removal of chlorophenols in petrochemical wastewater by organophilic and aminated silica@alginate microbeads: Taguchi optimization and isotherm modeling based on partition coefficient

Younis, Sherif A.; Motawea, Eman A.; Moustafa, Yasser M.; Lee, Jechan; Kim, Ki‐Hyun

doi:10.1016/j.jhazmat.2020.122792

Cited by 56 publications

(14 citation statements)

References 52 publications

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“…It was reported that the pseudo-second order kinetic model best described the experimental data at low sulfamethoxazole concentrations (between 1 and 5.1 mg L −1 ), while the pseudo-first order best applied to the kinetic data when sulfamethoxazole concentration was as high as 20.5 mg L −1 [176]. However, it must be noticed that in recent kinetic studies, the terms pseudo first-and pseudo second-orders have been replaced by the term "partition coefficient" which better accounts for the biochar behavior in removing pollutants from environmental compartments [177][178][179][180].…”

Section: The Kinetics Of Biochar Adsorption/desorptionmentioning

confidence: 99%

Recent Developments in Understanding Biochar’s Physical–Chemistry

et al. 2021

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Biochar is a porous material obtained by biomass thermal degradation in oxygen-starved conditions. It is nowadays applied in many fields. For instance, it is used to synthesize new materials for environmental remediation, catalysis, animal feeding, adsorbent for smells, etc. In the last decades, biochar has been applied also to soils due to its beneficial effects on soil structure, pH, soil organic carbon content, and stability, and, therefore, soil fertility. In addition, this carbonaceous material shows high chemical stability. Once applied to soil it maintains its nature for centuries. Consequently, it can be considered a sink to store atmospheric carbon dioxide in soils, thereby mitigating the effects of global climatic changes. The literature contains plenty of papers dealing with biochar’s environmental effects. However, a discrepancy exists between studies dealing with biochar applications and those dealing with the physical-chemistry behind biochar behavior. On the one hand, the impression is that most of the papers where biochar is tested in soils are based on trial-and-error procedures. Sometimes these give positive results, sometimes not. Consequently, it appears that the scientific world is divided into two factions: either supporters or detractors. On the other hand, studies dealing with biochar’s physical-chemistry do not appear helpful in settling the factions’ problem. This review paper aims at collecting all the information on physical-chemistry of biochar and to use it to explain biochar’s role in different fields of application.

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Section: The Kinetics Of Biochar Adsorption/desorptionmentioning

confidence: 99%

Recent Developments in Understanding Biochar’s Physical–Chemistry

et al. 2021

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“…The resultant mixture was collected, rinsed with demineralized water, and dried at 80 °C in air. 43 , 44 …”

Section: Experimental Sectionmentioning

confidence: 99%

Ternary Photodegradable Nanocomposite (BiOBr/ZnO/WO₃) for the Degradation of Phenol Pollutants: Optimization and Experimental Design

Ali

Motawea

2021

ACS Omega

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The degradation of environmental contaminants with photocatalysts has bright prospects for application in the control of pollution. In this study, BiOBr/ZnO/WO 3 heterojunctions have been documented to be reliable visible-light photocatalysts for phenol deterioration. X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, photoluminescence spectral analysis, electrochemical impedance spectroscopy (EIS), EIS Bode plots, linear sweep voltammetry, and UV–visible diffuse reflectance spectroscopy were employed to describe the heterojunction’s structure in addition to its optical features. The results revealed that the BiOBr/ZnO/WO 3 ternary photocatalyst displayed more degradation activity in comparison to single-phase ZnO, WO 3 , or BiOBr, which is also higher than that of binary mixture photocatalysts with a phenol degradation efficiency of 90%. The influence of degradation variables, for instance, the potential of hydrogen (pH) and the initial organic contaminant content besides the heterojunction dose, on the deterioration efficiency was optimized using the response surface methodology. The degradation efficiency reached 95% under the optimal conditions of 0.08 g/0.03 L catalyst dose, a pH of 9, and an initial organic contaminant content of 10 mg L –1 . However, the optimal phenol degradation efficiency of 39.37 mg g –1 was achieved under the conditions of 0.08 g/0.03 L catalyst dose, pH of 9, and 200 mg L –1 initial phenol concentration.

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“…The existence of chlorophenols in drinking water causes unpleasant taste and odour even at the concentration as low as 0.1 mg/L [7]. Accordingly, the US Environmental Protection Agency and the WHO recommended that the amount of chlorophenols must not exceed 0.5 μg/L in drinking water and 100 μg/L in industrial wastewater [8].…”

Section: Introductionmentioning

confidence: 99%

The Use of Red Mud and Black Nickel Mud in Sorption of 3,5-Dichlorophenol

Kvorková

Иванова²,

Michálek

et al. 2021

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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This article discusses the use of alternative inexpensive adsorbents – wastes from the metal production - red mud (RM) and black nickel mud (BNM) and their sorption efficiency in 3,5-dichlorophenol removal. Chlorophenols are organic compounds consisting of a benzene ring, OH groups and chlorine atoms. The effects of adsorbent dose, contact time, and temperature on sorption process were monitored. The results showed that the optimal conditions to achieve the highest sorption efficiency of 3,5-dichlorophenol were reached with the use of black nickel mud at the amount (2.0 g), sorption time (1 hour) and at increased temperature (45 °C). The sorption efficiency under these conditions was 87.99 %. With increasing sorption time, the sorption efficiency decreased and desorption occurred. The same behaviour was observed using red mud of the same amount (2.0 g) at the same temperature (45 °C); however, after 1 hour, sorption efficiency was slightly reduced (85.16 %) compared to black nickel mud. Anyway, both of used materials are suitable for the use as alternative sorbents of 3,5-dichlorophenol under suitable conditions.

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A strategy for the efficient removal of chlorophenols in petrochemical wastewater by organophilic and aminated silica@alginate microbeads: Taguchi optimization and isotherm modeling based on partition coefficient

Cited by 56 publications

References 52 publications

Recent Developments in Understanding Biochar’s Physical–Chemistry

Recent Developments in Understanding Biochar’s Physical–Chemistry

Ternary Photodegradable Nanocomposite (BiOBr/ZnO/WO₃) for the Degradation of Phenol Pollutants: Optimization and Experimental Design

The Use of Red Mud and Black Nickel Mud in Sorption of 3,5-Dichlorophenol

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A strategy for the efficient removal of chlorophenols in petrochemical wastewater by organophilic and aminated silica@alginate microbeads: Taguchi optimization and isotherm modeling based on partition coefficient

Cited by 56 publications

References 52 publications

Recent Developments in Understanding Biochar’s Physical–Chemistry

Recent Developments in Understanding Biochar’s Physical–Chemistry

Ternary Photodegradable Nanocomposite (BiOBr/ZnO/WO3) for the Degradation of Phenol Pollutants: Optimization and Experimental Design

The Use of Red Mud and Black Nickel Mud in Sorption of 3,5-Dichlorophenol

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Product

Resources

About

Ternary Photodegradable Nanocomposite (BiOBr/ZnO/WO₃) for the Degradation of Phenol Pollutants: Optimization and Experimental Design