Modeling and optimization removal of reactive Orange 16 dye using MgO/g-C3N4/zeolite nanocomposite in coupling with LED and ultrasound by response surface methodology

Fathi, Elham; Gharbani, Parvin

doi:10.1016/j.diamond.2021.108346

Cited by 28 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the XRD pattern of g-C 3 N 4 sample, it has two characteristic diffraction peaks at 27.3° and 13.4° corresponding to (200) and (001) planes, which confirms the crystal structure (JCPDS No. 87-1526) 2 , 21 . In the ZIF-11 sample, the sharp peak had appeared at 4.3° belonging to the (110) plane (CCDC No.…”

Section: Resultsmentioning

confidence: 99%

“…Yuvan et al made a set of ZIF-8/g-C 3 N 4 photocatalysts with high response under visible light using in situ ultrasonic method 21 . Its photocatalytic activity has been investigated by degrading Methyl Orange (MO), Rhodamine B (RhB) and Tetracycline (TC).…”

Section: Introductionmentioning

confidence: 99%

“…Its photocatalytic activity has been investigated by degrading Methyl Orange (MO), Rhodamine B (RhB) and Tetracycline (TC). Due to the formation of heterogeneous photocatalyst and the normal type II heterogeneity transmission mechanism, the reduction of recombination and the transfer of the absorption edge to the visible light region have finally increased the performance of the mentioned photocatalyst 21 . Wang et al have synthesized g-C 3 N 4 /MOF (ZIF-67) photocatalyst using hydrothermal method and evaluated its photocatalytic activity by producing hydrogen under visible light irradiation 22 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reduced electron/hole recombination in Z-scheme nanostructure of zeolitic imidazolate framework-11/graphitic carbon nitride as photocatalyst under visible light

YarAhmadi,

Keramati

2023

Sci Rep

View full text Add to dashboard Cite

In this research, for the first time, the synthesis of nanostructure of zeolitic imidazolate framework-11/graphitic carbon nitride (ZIF-11/g-C3N4 X) with different weight of g-C3N4 (X: 0.01, 0.1, 0.3 g) is reported. Their performance was compared in photocatalytic degradation of MB under visible light. Synthetic samples were characterized by X-Ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometer (XPS), diffused reflectance spectroscopy (DRS), Field emission scanning electron microscopy (FE-SEM), Transmission electron microscope (TEM), Brunauer–Emmett–Teller (BET), Electrochemical Impedance Spectroscopy (EIS) and Photoluminescence (PL) analysis. Based on the results, Z-scheme ZIF-11/g-C3N4 0.3 was selected as the best sample. FESEM and TEM images indicated that g-C3N4 sheets were complicated on the surface of ZIF-11 with rhombic dodecahedron (RHO) morphology. The surface area and band gap of ZIF-11/g-C3N4 0.3 was determined as 174.5 m2/g and 2.58 eV, respectively. The recombination of charge carriers in the ZIF-11/g-C3N4 0.3 nanostructure was reduced. Photocatalytic degradation efficiency of MB (5 ppm), pH = 7, visible irradiation (120 W-60 min) using 0.1 g of ZIF-11/g-C3N4 0.3 was achieved 72.7% with first-order kinetic model and acceptable stability in three consecutive cycles. Further, the total organic carbon (TOC) removal rate by ZIF-11/g-C3N4 0.3 after 5 h were 66.5%.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reduced electron/hole recombination in Z-scheme nanostructure of zeolitic imidazolate framework-11/graphitic carbon nitride as photocatalyst under visible light

YarAhmadi,

Keramati

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…RSM is one of the optimization techniques based on a collection of mathematical and statistical techniques. It optimizes a process associated with optimization, reduces simulation expenses, and predicts the optimization process 20 . In the current study, Design-Expert ® (v. 7) software based on the Box-Behnken was used to evaluate the effect of independent variables on response performance and to predict the optimal response using RSM.…”

Section: Response Surface Methodologymentioning

confidence: 99%

Optimization of synergic antibacterial activity of Punica granatum L. and Areca nut (P.G.L.A.N) extracts through response surface methodology

Gharbani

Jam

Doshmanfekan

et al. 2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

The primary objective of this study was to evaluate the use of natural compounds as opposed to chemical preservatives. This study employed response methodology to evaluate the synergistic antibacterial effect of Areca nut and Punica granatum L. extract. Independent variables included extract type (Punica granatum L., Areca nut, and their mixture), solvent (water, ethanol, methanol), bacterial type (S. aureus, Salmonella, E. coli), and extract concentration (1, 10, 100 mg/L). The sensitivity was determined using the disk diffusion method, and the diameter of the inhibitory zone was measured. On the specified bacteria, the MIC (minimum inhibitory concentration) and MBC (minimum bactericidal concentration) of each extract were ascertained using the serial dilution method. This study revealed the existence of beneficial synergistic effects between the two extracts. Results indicated that the ethanolic extracts of Punica granatum L. and Areca nut had a synergistic effect on E. coli.

show abstract

“…[5] Considering the negative impact of azo dye molecules on the environment, it is important to remove these pollutants from wastewater. For this, different techniques have been proposed such as photochemical, electrochemical and photo-catalytic processes, [6][7][8] biological treatment, [9,10] adsorption, [11][12][13] LED and ultrasound, [14] filtration, [15] and Fenton reactions. [16][17][18] Advanced oxidative processes (AOPs) are promising techniques used to remove various organic compounds.…”

Section: Introductionmentioning

confidence: 99%

A Combined Study on Degradation Mechanism of Reactive Orange 16 through Fenton‐like Process: Experimental Studies and Density Functional Theoretical Findings

2022

View full text Add to dashboard Cite

In this study, the removal efficiency of Reactive orange 16 (RO16) azo dyes from aqueous solution with different Fenton reactions (Fenton/photo‐Fenton/sono‐Fenton/ sono‐photo‐Fenton) were investigated. For optimum conditions, the effects of variables such as H2O2, Fe2+, reaction time, pH and dye concentration on the oxidation process were investigated. In addition, the interaction between Fenton reagents and the dye molecule was revealed by Density Functional Theory (DFT) calculations. Important quantum chemical parameters reflecting the reactivity of the studied dye were calculated. Effective RO16 degradation was achieved by Fenton oxidation at conditions of 100 mg L−1 H2O2, 10 mg L−1 Fe2+, 100 mg L−1 dye concentration, 3 pH and 30 minutes. While the degradation efficiency with Fenton process was 97.77 %, it reached 98.78 %, 98.31 % and 98.22 % when UV−A, UV−B and UV−C lights were applied respectively. In the sono‐Fenton process application, the degradation efficiency was determined as 97.96 %. The degradation of RO16 by sono‐photo‐Fenton was 96.12 %, 96.13 % and 96.83 % under different lamps (UV−A, UV−B and UV−C), respectively. In addition, in the kinetic study, it was determined that each process complies with the zeroth‐order kinetics. To see the nature and power of the interaction between hydroxyl radical and RO16, important quantum chemical parameters of Conceptual Density Functional Theory were calculated and their effects on degradation process were discussed as detailed. Degradation mechanism was highlighted in the light of DFT calculations.

show abstract

Modeling and optimization removal of reactive Orange 16 dye using MgO/g-C3N4/zeolite nanocomposite in coupling with LED and ultrasound by response surface methodology

Cited by 28 publications

References 35 publications

Reduced electron/hole recombination in Z-scheme nanostructure of zeolitic imidazolate framework-11/graphitic carbon nitride as photocatalyst under visible light

Reduced electron/hole recombination in Z-scheme nanostructure of zeolitic imidazolate framework-11/graphitic carbon nitride as photocatalyst under visible light

Optimization of synergic antibacterial activity of Punica granatum L. and Areca nut (P.G.L.A.N) extracts through response surface methodology

A Combined Study on Degradation Mechanism of Reactive Orange 16 through Fenton‐like Process: Experimental Studies and Density Functional Theoretical Findings

Contact Info

Product

Resources

About