Fe2O3-graphene anchored Ag nanocomposite catalyst for enhanced sonocatalytic degradation of methylene blue

Noypha, Amnuay; Areerob, Yonrapach; Chanthai, Saksit; Nuengmatcha, Prawit

doi:10.1007/s43207-020-00096-z

Cited by 26 publications

(4 citation statements)

References 35 publications

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“…This phenomenon results in the production of very effective free radicals resulting in the return of oxygen and oxidation of water according to Eqs. (5,6).…”

Section: Photocatalytic Principlementioning

confidence: 99%

“…In recent years, the world has experienced strong population growth and industrial modernization [1,2]. These factors contributed significantly to the percentage of waste that is emitted daily and condenses at the valley and river levels, resulting in a significant increase in their pollution [3][4][5]. The synthetic dyes used in the textile industry are one of the most dangerous water pollutants, through mixing their turbid waters with the waters of valleys and rivers, and thus lead to environmental disasters affecting humans, animals and plants [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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High photocatalytic capacity of porous ceramic-based powder doped with MgO

Bouras

Fellah

Mecif

et al. 2022

J. Korean Ceram. Soc.

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To purify water at low cost for our daily life, the effect of ceramic-based (mullite–cristobalite) and (mullite–zircon) powders doped with different amounts of magnesium oxide (MgO) (10 and 20 wt%) was studied. These compounds are made of a local raw material DD3 with addition of zirconia (ZrO2) to create an open porosity. The powders were prepared by the traditional mixing method with the help of an automated crushing. The effect of MgO doping on structural, morphological and photocatalytic properties of the material was studied by various analytical techniques such as X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, infrared, and UV–visible spectrometry. The results of XRD proved that there was a deformation in the crystal structure of the two types of ceramics after addition, which resulted in a shift of the spectra to the right, while SEM proved the presence of pores with a larger size as the proportion of MgO increases. The chemical composition of the basic components of the ceramic compounds as well as the additive was confirmed with EDS and IR spectra. The final results show that ceramics with added zirconia (DD3Z) and doped with 10% of MgO have a better photocatalytic efficiency than ceramics without zirconia. This important effect could be related to the higher rate of porosity, which provides a more active surface. The 10% MgO content showed a high photoactivity of 77.33% in only 15 min. The maximum hydrolysis rate obtained with Orange II was 92.95% after a period of 45 min with DD3Z/MgO powders.

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“…This phenomenon results in the production of very effective free radicals resulting in the return of oxygen and oxidation of water according to Eqs. (5,6).…”

Section: Photocatalytic Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High photocatalytic capacity of porous ceramic-based powder doped with MgO

Bouras

Fellah

Mecif

et al. 2022

J. Korean Ceram. Soc.

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show abstract

“…Many techniques have been developed that can be used for removing dry matter from wastewater, such as adsorption [3], photocatalytic degradation [4,5], sonocatalytic degradation [6,7], electrochemical methods [8], electrocoagulation [9], reverse osmosis [10], ultrafiltration mixed matrix membranes [11] and electro-Fenton processes [12]. Out of all of these appro- aches, the adsorption is the one that is utilized rather frequently.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Activated Carbon from Lepironia articulata (Retz.) Domin Waste as an Adsorbent for Methylene Blue Dye Removal from Wastewater

Dawmanee,

Ruang-On,

Nuengmatcha

2024

ajc

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In this study, the optimum conditions for using activated carbon from Lepironia articulata (Retz.) Domin waste as an adsorbent were determined to remove dye pollutants from wastewater. The characteristics of the obtained activated carbon were assessed by performing energy dispersive X-ray (EDX), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopic (FTIR) techniques. The best optimum conditions for removing dye pollutants from wastewater were obtained at 30 mg/L methylene blue dye, 0.02 g of adsorbent and a contact time of 90 min. The maximum adsorption capacity of the activated carbon was 69.44 mg/g and the percentage removal achieved was more than 90%. The methylene blue dye adsorption data of the adsorbent were fitted to the Langmuir isotherm model. The prepared adsorbent was also applied for the removal of different colour dyes from real wastewater samples and found that the percentage removal was 71.3%, 62.7%, 66.3%, 68.4% and 72.0% for dark blue dye, red dye, pink dye, sky blue dye and yellow dye, respectively. These results indicated that the obtained activated carbon is highly effective and suitable adsorbent for removing different types of colour dyes and toxic organic substances from the wastewater.

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“…[4] The unusually high surface-to-volume ratio of conductive two dimenstional (2D) nanosheets (NSs) renders these materials highly efficient hybridization matrices via effective interfacial interactions at their wide 2D surfaces. [5,6] To date, a huge number of reports have been published regarding the exploration of efficient energy-functional hybrid materials based on hybridization with conductive 2D NSs, such as reduced graphene oxide (rGO), 1T′-MoS 2 , RuO 2 , and MXene. [7][8][9] To further improve the energy performances of these 2D NS-based hybrid materials, modification of the surface bonding natures of conductive NSs has been pursued as a chemical strategy to enhance the interfacial chemical interactions with hybridized species.…”

Section: Introductionmentioning

confidence: 99%

Multilayer Conductive Hybrid Nanosheets as Versatile Hybridization Matrices for Optimizing the Defect Structure, Structural Ordering, and Energy‐Functionality of Nanostructured Materials

Kwon

Kim

et al. 2021

Advanced Science

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The hybridization of conductive nanospecies has garnered significant research interest because of its high efficacy in improving the diverse functionalities of nanostructured materials. In this study, a novel synthetic strategy is developed to optimize the defect structure, structural ordering, and energy‐related functionality of nanostructured‐materials by employing a multilayer multicomponent two‐dimenstional (2D) graphene/metal oxide/graphene nanosheet (NS) as a versatile hybridization matrix. The hybridization of the robust trilayer, polydiallyldiammonium (PDDA)‐anchored reduced‐graphene oxide (prGO)/metal oxide/prGO NS effectively enhance the structural ordering and porosity of the hybridized MoS2/MnO2 NS through suppression of defect formation and tight stacking. In comparison with monolayer rGO/RuO2 NS‐based homologs, the 2D superlattice trilayer prGO/RuO2/prGO NS hybrids deliver better functionalities as a hydrogen evolution electrocatalyst and as a supercapacitor electrode, demonstrating the merits of hybridization with multilayer NSs. The advantages of using multilayer multicomponent conductive NSs as hybridization matrices arise from the enhancement of charge and mass transport through the layer flattening or defect suppression of the hybridized NSs and the increase in porosity, as evidenced by density functional theory calculations. Finally, the universal utility of multilayer NSs is confirmed by investigating the strong effect of the stacking order on the electrocatalytic functionality of MoS2/rGO/RuO2 films fabricated through layer‐by‐layer deposition.

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Fe2O3-graphene anchored Ag nanocomposite catalyst for enhanced sonocatalytic degradation of methylene blue

Cited by 26 publications

References 35 publications

High photocatalytic capacity of porous ceramic-based powder doped with MgO

High photocatalytic capacity of porous ceramic-based powder doped with MgO

Preparation and Characterization of Activated Carbon from Lepironia articulata (Retz.) Domin Waste as an Adsorbent for Methylene Blue Dye Removal from Wastewater

Multilayer Conductive Hybrid Nanosheets as Versatile Hybridization Matrices for Optimizing the Defect Structure, Structural Ordering, and Energy‐Functionality of Nanostructured Materials

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