Preparation of Visible-Light-Driven Al-Doped ZnO Nanoparticles Used for Photodegradation of Methylene Blue

Sa-nguanprang, Surisa; Phuruangrat, Anukorn; Thongtem, Titipun; Thongtem, Somchai

doi:10.1007/s11664-019-07686-6

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…The presence of untreated coloured wastewater in the water environment such as bromocresol green has led to environmental problems such as the depletion of oxygen and reduced penetration of sunlight in the water, which endangers the life of aquatic species [2]. Also, various studies have shown a link between the carcinogenicity of humans and the toxicity of industrial wastewater containing dye [3][4][5][6]48].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of chitosan functionalized magnetic carbon nanotubes for dispersive solid‐phase extraction of bromocresol green

Abniki

Moghimi

2021

Micro & Nano Letters

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This study presents a new and rapid method for preconcentration, measurement, and removal of trace amounts of coloured wastewater using chitosan functionalized magnetic carbon nanotubes in aqueous samples. This method involves a two-phase system in which the donor phase contains an aqueous phase with bromocresol green, and the acceptor phase contains functionalized magnetic carbon nanotubes with chitosan. Experiments were carried out in two stages of extraction of bromocresol green from aqueous solution and desorption of bromocresol green using ethanol solvent. The samples were analysed by UV-Vis spectrophotometer. Extraction parameters were investigated such as the effect of organic solvent, pH of the donor and acceptor phases, extraction time, interference species, and volume of elution solvent. The isotherm of bromocresol green adsorption was fine described by the Langmuir model, and the adsorption capacity in the maximum was 28.49 mg g −1 . The preconcentration factor and limit of detection for bromocresol green were 14.3 and 7.5 μg L −1 , respectively. A linear range is observed between 0.1 and 20 mg L −1 . Finally, the chitosan functionalized magnetic carbon nanotubes (Fe 3 O 4 @MWCNT-CN) exhibited a high potential for removing the bromocresol green from aqueous samples.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

Synthesis of chitosan functionalized magnetic carbon nanotubes for dispersive solid‐phase extraction of bromocresol green

Abniki

Moghimi

2021

Micro & Nano Letters

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“…There was no obvious chemical bond change, implying that the surface elemental composition of g-C 3 N 4 was not destroyed after the electrostatic self-assembly process. The curve in the high-resolution spectrum of Al located at 73.8 eV corresponded to the interaction of Al 3+ with other chemical components for g-C 3 N 4 . Meanwhile, the thermal stability of the as-prepared samples was explored by TG, which is shown in Figure S8.…”

Section: Resultsmentioning

confidence: 99%

“…The curve in the high-resolution spectrum of Al located at 73.8 eV corresponded to the interaction of Al 3+ with other chemical components for g-C 3 N 4 . 47 Meanwhile, the thermal stability of the as-prepared samples was explored by TG, which is shown in Figure S8.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

A Flexible and Weavable Lignocellulose-Based Photocatalyst Supported by Natural Three-Dimensional Porous Juncus effusus for Highly Efficient Degradation of Environmental Contaminants

Zhou

Zhang

Xia

et al. 2022

ACS Appl. Mater. Interfaces

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Lignocellulosic biomass is a potential biotemplate for disposing the burden of the uncontrollable accumulation of environmental contaminants disrupting the hydrophytic ecosystems. Herein, an efficient solar-driven catalyst was prepared using a natural three-dimensional (3D) porous lignocellulose-based Juncus effusus (JE) fiber for wastewater treatment. Owing to the exquisite 3D microstructure and abundant hydroxyl groups, the two-dimensional lamellar graphitic carbon nitride/graphene oxide (g-C3N4/GO) nanocomposites were successfully synthesized and decorated on the carboxymethylated JE fiber via the electrostatic self-assembly method. The as-prepared g-C3N4/GO-JE (CNG-JE) photocatalyst exhibits excellent light absorption efficiency and a superior ability to accelerate photogenerated electron migration. The outstanding adsorption performance toward pollutants also contributes to the photodegradation property of CNG-JE, showing highly efficient degradation of C.I. Reactive Red 120 (99.8%), C.I. Acid Yellow 11 (99.8%), methylene blue (99.4%), Cr(VI) (98.8%), and tetracycline (87.2%). Most importantly, the lignocellulose-based CNG-JE fibers could be fabricated into a photocatalyst textile due to their flexible and weavable properties. In actual application, the CNG-JE textile can be reused for at least five cycles under the sun, demonstrating that the flexible CNG-JE textile is practical and recyclable. This study may provide a platform for constructing efficient, flexible, and weavable biomass-based porous materials for cost-effective and sustainable catalytic applications.

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“…Aligned with the above topics, methyl orange (MO) [1,34,35], methylene blue (MB) [15,[36][37][38][39], and rhodamine 6G (Rh6G) [16,34,[40][41][42][43] are dyes frequently used to evaluate the photocatalytic activity of some semiconductors and other compounds, such as TiO 2 , ZnO, or reduced graphene oxide [11,13,26].…”

Section: Introductionmentioning

confidence: 99%

CoO, Cu, and Ag Nanoparticles on Silicon Nanowires with Photocatalytic Activity for the Degradation of Dyes

et al. 2022

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Photocatalytic semiconductors require maintaining stability and pursuing higher efficiencies. The studied systems were silicon nanowires (SiNWs), silicon nanowires with cobalt oxide nanoparticles (SiNWs-CoONPs), and silicon nanowires with copper nanoparticles (SiNWs-CuNPs). SiNWs were synthesized by metal-assisted chemical etching (MACE) from silicon wafers keeping the remaining silver nanoparticles for all three sample types. The nanowires were about 23–30 µm in length. CoONPs and CuNPs were deposited on SiNWs by the autocatalytic reduction processes (electroless). There were many factors in the process that affect the resulting structures and degradation efficiencies. This work shows the degradation of methyl orange (MO) together with the chemisorption of methylene blue (MB), and rhodamine 6G (Rh6G) by direct illumination with visible radiation. The MO degradation kinetics were in the sequence SiNWs-CuNPs (88.9%) > SiNWs (85.3%) > SiNWs-CoONPs (49.3%), with the SiNWs-CuNPs having slightly faster kinetics. However, SiNWs-CoONPs have slow degradation kinetics. The chemisorptions of MB and Rh6G were SiNWs-CuNPs (87.2%; 86.88%) > SiNWs (86%; 87%) > SiNWs-CoONPs (17.3%; 12%), showing dye desorptions together with lower chemisorption capacities. This work shows iridescence in optical microscopy images by the visible light interference caused by the spaces between the nanowire bundles.

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Preparation of Visible-Light-Driven Al-Doped ZnO Nanoparticles Used for Photodegradation of Methylene Blue

Cited by 8 publications

References 24 publications

Synthesis of chitosan functionalized magnetic carbon nanotubes for dispersive solid‐phase extraction of bromocresol green

Synthesis of chitosan functionalized magnetic carbon nanotubes for dispersive solid‐phase extraction of bromocresol green

A Flexible and Weavable Lignocellulose-Based Photocatalyst Supported by Natural Three-Dimensional Porous Juncus effusus for Highly Efficient Degradation of Environmental Contaminants

CoO, Cu, and Ag Nanoparticles on Silicon Nanowires with Photocatalytic Activity for the Degradation of Dyes

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