Efficient removal of antibiotic thiamphenicol by pulsed discharge plasma coupled with complex catalysis using graphene-WO3-Fe3O4 nanocomposites

Guo, He; Li, Zhen; Xiang, Liangrui; Jiang, Nan; Zhang, Ying; Wang, Huijuan; Li, Jie

doi:10.1016/j.jhazmat.2020.123673

Cited by 105 publications

(16 citation statements)

References 60 publications

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“…By solid addition method, the CoFe2O4@CMC/HZSM-5 point of zero charge (pHpzc) was evaluated. At first, 10 different pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11) values, 100 mL of KCl solution (0.1 mol/L) was prepared. Then, 0.01 g of the magnetic nanobiocomposite was added to each solution.…”

Section: Adsorption Methodsmentioning

confidence: 99%

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Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

Nasiri

Heidari

Javid

et al. 2021

Preprint

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In this research CoFe2O4@CMC/ HZSM-5 synthesized in the presence of Carboxymethylcellulose as a biopolymer in the green conditions as a new nanomagnetic adsorbent for metronidazole removal from aqueous media. Physical and chemical structure of adsorbent was investigated by FTIR, FESEM, EDS, Mapping, TEM, XRD, VSM, BET and TGA techniques. The results indicated that 94% of the metronidazole concentration removed by CoFe2O4@CMC/HZSM-5 in the optimal conditions including pH 6, temperature 20oC, metronidazole concentration 50 mg/L, contact time 60 min and adsorbent dose 2 g/L. The resulting data from adsorption experimental experiments had better correlated with the Freundlich isotherm and pseudo-second order kinetic. Also, the thermodynamic study demonstrated that the adsorption process was an endothermic process and had a physical mechanism. As well as, the achieved findings demonstrated that following six adsorption runs, the adsorbent chemical structure had no change and the nanomagnetic adsorbent efficiency in the removal process had a slight decrease. CoFe2O4@CMC/HZSM-5 magnetic nanocomposite had effective adsorption capacity for metronidazole removal.

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Section: Adsorption Methodsmentioning

confidence: 99%

“…Eventually, they enter the environment through the urine and stool in the form of active compounds. The hospital wastewater is the main source of antibiotics in the environment [1,2]. Medications and antibiotics are the most important groups of emerging pollutants.…”

Section: Introductionmentioning

confidence: 99%

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

Nasiri

Heidari

Javid

et al. 2021

Preprint

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“…During this calculation, a crystal with parameters of 15 × 15 × 15 A was established. The equipped Dmol 3 module was performed to present Fukui Function, giving the result of f 0 [50,51]. The intermediates toxicity was assessed by US Environmental Protection Agency Toxicity Estimation Software Tool (US-EPA-TEST) based on oral rat LD 50 , developmental toxicity and mutagenicity [52].…”

Section: Dft Analysis and Toxicity Assaysmentioning

confidence: 99%

Sodium Percarbonate Activation by Plasma-Generated Ozone for Catalytic Degradation of Dye Wastewater: Role of Active Species and Degradation Process

2022

Self Cite

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In this paper, sodium percarbonate (SPC) was activated by ozone (O3) from plasma for catalytic treatment of dye wastewater. Methyl blue (MB), a typical industrial dye, was selected as the target dye contaminant. Results showed that enhancing O3 dosage and reducing MB concentration were beneficial to MB degradation. Compared to acid condition, a higher removal efficiency of MB was obtained in alkaline condition. With an increase of SPC dosage, the removal efficiency of MB first was raised, and then it declined. Under the optimal dosage of 50 mg/L, the removal efficiency of MB reached 85.7% with 30 min treatment time. The energy efficiency was improved from 5.21 g/kWh to 5.71 g/kWh. A synergetic effect can be established between O3 and SPC. Radical capture experiments verified that ·OH, ·O2−, 1O2, and ·CO3− played important parts in MB degradation. With increasing reaction time, the amount of total organic carbon (TOC) declined and the amount of ammonia nitrogen (NH3-N) increased. The addition of SPC enhanced the solution’s pH value and conductivity. The degradation pathway was proposed based on density functional theory (DFT) analysis and relevant literatures. The toxicity of MB was alleviated after O3/SPC treatment. The O3/SPC process was also suitable for the treatment of other dyes and actual wastewater.

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“…11 Graphene-based nanostructures have also shown great potential in heterogeneous catalysis. 12,13 However, despite these remarkable properties, there are critical limitations to the practical applications of pristine graphene-supported MNPs in heterogeneous catalysis related to, on one hand, the aggregation of graphene nanoparticles due to the strong π−π stacking interactions between graphene nanolayers and, on the other hand, the weak interactions between graphene and MNPs which result in a poor control of the size and dispersion stability of the MNPs, thereby making the catalytic active sites inaccessible. 14 Chemical surface modification of graphene with suitable functional entities exhibiting high binding affinity to metal ions can be used for the direct generation of metal nanoparticles having a finely controlled size, morphology, size distribution, and density on the surface of the support.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, graphene, as a two-dimensional monolayer of graphite, has been emerging as a promising supporting material for MNPs due to its several unique properties, such as ultrasmall dimensions; an extraordinary specific surface area; unique mechanical, thermal, chemical, optical, and electrical properties; and excellent electron transport properties at room temperature . Graphene-based nanostructures have also shown great potential in heterogeneous catalysis. , …”

Section: Introductionmentioning

confidence: 99%

Efficient and Recyclable Heterogeneous Catalyst Based on PdNPs Stabilized on a Green-Synthesized Graphene-like Nanomaterial: Effect of Surface Functionalization

Mahouche‐Chergui

Oun

Haddadou

et al. 2021

ACS Appl. Mater. Interfaces

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This work reports for the first time a straightforward and efficient approach to covalent surface functionalization of a sustainable graphene-like nanomaterial with abundant carboxylic acid groups. This approach results in an efficient and robust chelatant platform for anchoring highly dispersed ultrasmall palladium particles with excellent catalytic activity in the reduction of both cationic (methylene blue, MB) and anionic (eosin-Y, Eo-Y) toxic organic dyes. The large-specific-surface-area (S BET = 266.94 m 2 /g) graphene-like nanomaterial (GHN) was prepared through a green and cost-effective pyrolysis process from saccharose using layered bentonite clay as a template. To introduce a high density of carboxylic acid functions, GHN was first doubly functionalized by successive grafting reaction using two different strategies: (i) in the first case, GHN was first grafted by (3-glycidyloxypropyl) trimethoxysilane (GPTMS) and then bifunctionalized by chemical grafting of tris(4-hydroxyphenyl)methane triglycidyl ether (TGE). In the second case, the grafting order of the two molecules has been reversed. GHN-GPTMS-TGE provided the highest number of grafted reactive epoxy groups, and it was selected for further functionalization with carboxylic acid functions via a ringopening reaction through a two-step hydrolysis (H 2 SO 4 )/oxidation (KMnO 4 ) approach. The GHN nanomaterial bearing carboxylic acid groups was then treated with sodium hydroxide to produce a deprotonated carboxylic acid-rich platform. Finally, due to a high density of accessible chelatant carboxylic acid groups, GHN−COO − binds strongly a great amount of Pd 2+ ions to form stable complexes which after reduction by NaBH 4 leads to highly dispersed, densely anchored, and uniformly distributed nanoscale Pd particles (d ∼ 4.5 nm) on the surface of the functionalized GHN. The GHN−COO − @PdNPs nanohybrid proved to be highly efficient for dye reduction by NaBH 4 in aqueous solution at room temperature. Moreover, because of the high stability of the asprepared graphene-like supported PdNPs, it exhibited very good reusability and could be recycled up to eight times without any significant loss in activity.

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Efficient removal of antibiotic thiamphenicol by pulsed discharge plasma coupled with complex catalysis using graphene-WO3-Fe3O4 nanocomposites

Cited by 105 publications

References 60 publications

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

Sodium Percarbonate Activation by Plasma-Generated Ozone for Catalytic Degradation of Dye Wastewater: Role of Active Species and Degradation Process

Efficient and Recyclable Heterogeneous Catalyst Based on PdNPs Stabilized on a Green-Synthesized Graphene-like Nanomaterial: Effect of Surface Functionalization

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