Photodegradation of methyl orange catalyzed by nanoscale zerovalent iron particles supported on natural zeolite

Naderpour, Hamidreza; Noroozifar, Meissam; Khorasani-Motlagh, Mozhgan

doi:10.1007/s13738-012-0181-5

Cited by 22 publications

(6 citation statements)

References 36 publications

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“…This can be overcame by various technologies such as doping of metals and not-metals into the semiconducting material, use the catalysts with nanodimension, coupling of two or more semiconductors, supporting the catalyst into supports, the use of plasmonic systems, etc. Detailed mechanism pathways for these technologies have been illustrated in the literature (Vafayi et al 2015;Palma et al 2020;Rostami-Vartooni et al 2019;Giahi et al 2016;Naderpour et al 2013;Pouretedal et al 2017;Derikvandi et al 2017;Bordbar et al 2015;Derikvandi et al 2020;Khodadadi et al 2016;Pouretedal et al 2016;Thirumalai et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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The ZnO supported on the ball-mill prepared clinoptilolite nanoparticles (CNPs) was prepared via an ionexchange process followed by the calcination process. The ZnO-CNP catalyst was brie y characterized by XRD, FTIR, and DRS techniques. The pHpzc value for the various ZnO-CNPs was about 7.1 that no changed with the ZnO loading. By applying the Scherrer equation on the XRD results, a nano-dimension was obtained for the catalyst. Band gap energy of the ZnO-CNP samples were estimated by applying the Kubelka-Munk equation on the DRS re ectance spectra. The supported ZnO-CNP sample was then used in the photodegradation of 2,4-dichloroaniline (DCA).The effects of the most important key operating factors on the degradation e ciency was kinetically studied by applying the Hinshelwood equation on the results. The ZnO-CNP catalyst with 2 w% ZnO showed the best photocatalytic rate in the optimal conditions of 0.75 g/L, C DCA : 15 ppm, and the initial pH: 5.8. Finally, HPLC analysis of the blank and the photodegraded DCA solutions at 180 and 300 min con rmed 74 and 87% of DCA molecules were degraded during these times.

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Section: Introductionmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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“…B-nZVI 60 0.01 50 [37] ACA@Fe 0 6 6.7 14 This study MO ZV-Fe NPs. 100 6 25 [38] Fe 0 /NANPs 60 0.1 18 [39] ACA@Fe 0 Fe 0 /Albizia lebbeck leaves 50 0.004 20 [43] ACA@Fe 0 4 min 6.7 34.8 This study spectrum of CA@Fe 0 and ACA@Fe 0 give peaks at 0.3 KeV for C, 0.6 KeV for O, and three peaks for Fe at 0.6, 6.5 and 7.0 KeV respectively. The C, O and Fe are present in CA@Fe 0 at 15.53, 45.71 and 34.98 weight% respectively as shown in Figure 4a and 4b, while in ACA@Fe 0 the weight% of C, O and Fe are 10.73, 33.18 and 52.18% respectively as shown in Figure 4c and 4d respectively.…”

Section: Fesemmentioning

confidence: 94%

Cellulose acetate composite films fabricated with zero‐valent iron nanoparticles and its use in the degradation of persistent organic pollutants

Johny

Ahmad

Shah

et al. 2020

Applied Organom Chemis

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Cellulose acetate (CA), and CA blended with Nicotiana tabacum ash (ACA) membranes have synthesized and fabricated with zero-valent Fe NPs (ZVI) and named as CA@Fe 0 and ACA@Fe 0. The as-synthesized membranes were inspected for the removal and detoxification of toxic organic pollutants. Comparative studies of CA@Fe 0 and ACA@Fe 0 NPs were investigated for five model pollutants, such as 4-nitrophenol (4NP), methyl orange (MO), Congo red (CR), methylene blue (MB), and bromocresol green (BCG). The kinetic model indicated that the apparent rate constant K app value of ACA@Fe 0 was highest for all model pollutants compared to CA@Fe 0 NPs. The K app value is derived from pseudo-first-order kinetics. The K app value of MO discoloration was 8.17 × 10 −1 min −1 with ACA@Fe 0 which is highest than CA@Fe 0 (3.08 × 10 −1 min −1). The turnover frequency (TOF) was highest for ACA@Fe 0 for all the pollutants compared to CA@Fe 0 and the highest TOF value was found for CR dye with ACA@Fe 0 which is 0.523 h −1. Both the membranes also showed promising antibacterial activity against Salmonella typhi. Furthermore, CA, ACA membrane and CA@Fe 0 and ACA@Fe 0 NPs were characterized through FESEM, EDS, XRD, FTIR and TGA analysis.

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“…Natrolite zeolite has been reported in Northern Zahedan (Sistan and Baluchestan Province). The utilization of natural zeolites, with respect to their synthetic counterparts, reduces operation costs and eliminates the need for time-consuming synthesis procedures and expensive reagents and eco-friendly materials (Naderpour et al , 2013).…”

Section: Natural Zeolite Deposits In Iranmentioning

confidence: 99%

“…The photo-decolourizing ability of MO from aqueous solution was reported using Fe 0 nanoparticles supported on natrolite zeolite nanoparticles (NANPs-FeNPs). The order of reactivity of the catalysts was: photo-NANPs-FeNPs-H 2 O 2 > photo-NANPs-H 2 O 2 > photo-NANPs-FeNPs > photo-H 2 O 2 > NANPs-FeNPs-H 2 O 2 (Naderpour et al , 2013).…”

Section: Research Production and Applications Of Natural Iranian Zeomentioning

confidence: 99%

Recent advances in the science and technology of natural zeolites in Iran

2019

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Iran has significant deposits of high-purity natural zeolites. Many Iranian scholars conduct scientific research on porous materials, from natural and synthetic zeolites to metal organic framework materials. Iranian zeolite deposits and associated research are reviewed here. Various industrial applications of natural zeolites, from agriculture to animal husbandry to the construction industry and beyond are discussed here.

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Photodegradation of methyl orange catalyzed by nanoscale zerovalent iron particles supported on natural zeolite

Cited by 22 publications

References 36 publications

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Cellulose acetate composite films fabricated with zero‐valent iron nanoparticles and its use in the degradation of persistent organic pollutants

Recent advances in the science and technology of natural zeolites in Iran

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