The photocatalytic degradation of methylene blue using graphene oxide (GO)/ZnO nanodrums

Munawaroh, H; Sari, Puspa; Wahyuningsih, Sayekti; Ramelan, Ari Handono

doi:10.1063/1.5054523

Cited by 14 publications

(5 citation statements)

References 31 publications

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Section: Zno Nanocomposites For Removal Of Mb Dyementioning

confidence: 99%

“…In distilled water, GO/ZnO nanodrums were mixed with varied compositions of GO and ZnO, such as 1:0, 1:1, and 1:2 (w/w). The degradation of MB by GO/ZnO nanodrums was reported to be 94.05 % after 60 min of contact time with UV exposure at 254 nm[146].Micheal et al (2020) used a wet chemical approach to manufacture rods such as ZnO nanoparticles and carbon nanoplates that supported ZnO nanorods (ZnO/C). Under visible light irradiation, the produced ZnO nanoparticles were employed to photodegrade the MB dye.…”

mentioning

confidence: 99%

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Recent and Emerging Trends in Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles

Modi¹,

Yadav

Gacem

et al. 2022

Water

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Due to the increased demand for clothes by the growing population, the dye-based sectors have seen fast growth in the recent decade. Among all the dyes, methylene blue dye is the most commonly used in textiles, resulting in dye effluent contamination. It is carcinogenic, which raises the stakes for the environment. The numerous sources of methylene blue dye and their effective treatment procedures are addressed in the current review. Even among nanoparticles, photocatalytic materials, such as TiO2, ZnO, and Fe3O4, have shown greater potential for photocatalytic methylene blue degradation. Such nano-sized metal oxides are the most ideal materials for the removal of water pollutants, as these materials are related to the qualities of flexibility, simplicity, efficiency, versatility, and high surface reactivity. The use of nanoparticles generated from waste materials to remediate methylene blue is highlighted in the present review.

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Section: Zno Nanocomposites For Removal Of Mb Dyementioning

confidence: 99%

mentioning

confidence: 99%

Recent and Emerging Trends in Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles

Modi¹,

Yadav

Gacem

et al. 2022

Water

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“…6,7,11 To synthesize such raw materials, numerous metal catalysts including Pt, Au, Ag, Pd, Ru, Rh, Cu and their various compounds have been employed to accelerate the reduction of azo dyes in the presence of NaBH 4. 12–19 However, the precursors of these metal catalysts are not cost-effective, require multistep preparative procedures, use relatively expensive toxic reagents and solvents, and less feasible for real-time recyclable and practical applications. 16 Therefore, it is highly essential to design and develop easily accessible none noble metal-based alternative catalysts that are highly efficient, fast active, recyclable, low cost, and nontoxic to all living species as well as to the environment.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient recyclable bismuth nanocatalysts fabricated using a facile one-step aqueous method for faster reduction of azo dye contaminants

Rahman,

Rabbi

et al. 2024

RSC Adv.

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“…Hence, the removal of these toxic azo compounds from the environment is a requirement. So far, degradation achieved by ultrafiltration, aerobic or anaerobic treatment, adsorption, advanced oxidation process (AOP), and coagulation techniques widely been employed to remove these nitrophenols and azo dyes 12 , 13 . However, the techniques mentioned above are said to be more expensive and less effective.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient and simultaneous catalytic reduction of multiple toxic dyes and nitrophenols waste water using highly active bimetallic PdO–NiO nanocomposite

Ramu

Choi

2021

Sci Rep

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Azo dyes and nitrophenols have been widely used in the various industry which are highly toxic and affecting the photosynthetic cycle of aquatic organism. The industry disposals increase the accumulation of azo compounds in the environment. In the present study, we synthesized the low cost, PdO-doped NiO hetero-mixture via simple hydrothermal combined calcination process. The morphology results proved that, the spherical PdO nanoparticles are evenly doped with NiO nanoparticles. The band gap values of metal oxides NiO, PdO and PdO–NiO composite were found to be 4.05 eV, 3.84 eV and 4.24 eV, respectively. The high optical bandgap (Eg) value for composite suggests that the PdO interface and NiO interface are closely combined in the composite. The catalytic activity of the PdO–NiO was analyzed for the reduction of different toxic azo compounds namely, 4-nitrophenol (NP), 2,4-dinitrophenol (DNP), 2,4,6-trinitrophenol (TNP), methylene blue (MB), rhodamine B (RhB) and methyl orange (MO) separately and their mixture with the presence of a NaBH4. For the first time, the large volume of the toxic azo compounds was reduced into non-toxic compounds with high reduction rate. The proposed PdO–NiO catalyst exhibit excellent rate constant 0.1667, 0.0997, 0.0686 min−1 for NP, DNP and TNT and 0.099, 0.0416 and 0.0896 min−1 for MB, RhB and MO dyes respectively which is higher rate constant than the previously reported catalysts. Mainly, PdO–NiO completes the reduction of mixture of azo compounds within 8 min. Further, PdO–NiO exhibit stable reduction rate of azo compounds over five cycles with no significant loss. Hence, the proposed low cost and high efficient PdO–NiO catalyst could be the promising catalyst for degradation of azo compounds.

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The photocatalytic degradation of methylene blue using graphene oxide (GO)/ZnO nanodrums

Cited by 14 publications

References 31 publications

Recent and Emerging Trends in Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles

Recent and Emerging Trends in Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles

Highly efficient recyclable bismuth nanocatalysts fabricated using a facile one-step aqueous method for faster reduction of azo dye contaminants

Highly efficient and simultaneous catalytic reduction of multiple toxic dyes and nitrophenols waste water using highly active bimetallic PdO–NiO nanocomposite

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