V-doped titanium mixed oxides as efficient catalysts for oxidation of alcohols and olefins

Amini, Mojtaba; Naslhajian, Hadi; Farnia, S. Morteza F.

doi:10.1039/c4nj00066h

Cited by 26 publications

(12 citation statements)

References 31 publications

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“…The absorption maxima for all samples were determined at a scanning range between 200–800 nm. The double distilled water was used as a reference for each measurement …”

Section: Characterization Of Greenly Synthesized Silver Nanoparticle mentioning

confidence: 99%

Green synthesis and characterization of silver nanoparticles by Allium cepa L. to produce silver nano‐coated fabric and their antimicrobial evaluation

Sharma

Pant

Rai

et al. 2017

Applied Organom Chemis

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This research work was proposed to study the antimicrobial activity of the silver nanocoated fabric with the purpose of producing good dressing and clothing material. We synthesized simple, ecofriendly, cost‐effective and sustainable silver nanoparticles by using the aqueous extract of Allium cepa L. Here, A. cepa L. acts as a good reducing and capping agent that produced stable silver nanoparticles having particle size of range 36 ± 1 to 98 ± 2 nm, Poly dispersiblity index 0.234 ± 0.61 to 1.023 ± 0.33 and Zeta potential ‐12 ± 1.5 mV to ‐26 ± 1.2 mV. The effect of temperature and extract volume used was considered for optimization of synthetic procedure. The nanocoated fabric was characterized for morphological study, size (using transmission electron microscopy (TEM) and field emission scanning electron microscopy (FE‐SEM) and zeta‐potential (Zeta Potentiometer). The presence of functional groups were observed by using attenuated total reflection‐Fourier transform infrared (ATR‐FTIR) and Raman spectroscopy. The crystallinity and structural property of the synthesized silver nanoparticles were studied in terms of Powder X‐ray diffraction (PXRD). An IC50 value and zone of inhibition was studied which demonstrate that the silver nanocoated fabric have an excellent antibacterial property against Gram‐negative (Escherichia coli) and Gram‐positive (Staphylococcus aureus) bacteria. Further nanocoated fabric material was washed (with function of time 0, 10, 25, and 50 laundry cycles) and still retained their anti‐bacterial activity towards both strain. Initially there was 52 μg/ml of silver nanoparticles on the cotton fabric but after 50 laundry cycle in 500 ml of distilled water the fabric showed 92% efficiency against gram positive and 90% efficacy toward gram negative bacteria. It was found that 4.16 μg/ml nano particles leached in case of S. Aureus and 5.2 μg/mL silver nanoparticles leached in case of E. coli. Nanocoated fabric material synthesized using green synthesis was found to be economical with good resistance to washing.

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“…The absorption maxima for all samples were determined at a scanning range between 200–800 nm. The double distilled water was used as a reference for each measurement …”

Section: Characterization Of Greenly Synthesized Silver Nanoparticle mentioning

confidence: 99%

Green synthesis and characterization of silver nanoparticles by Allium cepa L. to produce silver nano‐coated fabric and their antimicrobial evaluation

Sharma

Pant

Rai

et al. 2017

Applied Organom Chemis

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“…Reduction of these dye compounds using physical–chemical and biological processes is generally ineffective, time consuming and methodologically demanding in a high effluent concentration [24]. Among such process, reductive degradation of hazardous dyes with metal nanomaterials is a convenient degradation process because of their unique physiochemical and electronic properties which are not present in bulk materials [5], [2]. Metal nanomaterials are versatile materials that can be used in applications such as environmental remediation, medical technology, energy, water treatment, and personal care products [2], [14].…”

Section: Introductionmentioning

confidence: 99%

“…Among such process, reductive degradation of hazardous dyes with metal nanomaterials is a convenient degradation process because of their unique physiochemical and electronic properties which are not present in bulk materials [5], [2]. Metal nanomaterials are versatile materials that can be used in applications such as environmental remediation, medical technology, energy, water treatment, and personal care products [2], [14]. Gold and silver nanoparticles can act as good catalysts and hence catalyze many reduction reactions.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of nanostructured silver particles and their catalytic application in dye degradation

Kumari

Singh

2016

Journal of Genetic Engineering and Biotechnology

225

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Today, discharge of hazardous dyes from textile industries in water bodies like lakes, rivers and groundwater has become a serious problem, which contributes to increase their pollution levels significantly. These pollutants are difficult to remove by traditional water treatment procedures. Thus, there is a need to develop more suitable methods of effluent treatment. Here, we describe use of green-synthesized nanostructured silver particles in degradation of hazardous dyes like Safranine O, Methyl red, Methyl orange and Methylene blue etc. The silver nanoparticles (AgNPs) used as nanocatalysts were synthesized using Zanthoxylum armatum leaves. The reduction of silver ions and the formation of AgNPs have been assessed by UV–Vis spectroscopy. DLS, SEM–EDX, TEM, SAED and XRD studies revealed that the AgNPs were crystalline in nature with size range from 15 to 50 nm. The report emphasizes that the AgNPs are observed to be an excellent catalyst on reduction of hazardous dyes, which is confirmed by a decrease in absorbance maximum values.

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“…Salah satu cara mengatasi permasalahan ini adalah dengan fotodegradasi menggunakan katalis NPAg. NPAg dapat digunakan pada beberapa aplikasi seperti remediasi lingkungan, teknologi medis, energi dan pengolahan air [11,12] [14].…”

Section: Pendahuluanunclassified

Synthesis of Silver Nanoparticles (NPAg) using Andaliman (Zanthoxylum acanthopodium DC.) Fruit Water Extract and Its Application in Indigosol Blue Photodegradation

Lestari¹,

Suprihatin

Sibarani

2019

J. Kim. Sains Apl.

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Silver nanoparticles (NPAg) are silver metal particles that are less than 100 nm in size. NPAg has several advantages, one of which is as a catalyst in the process of photodegradation. NPAg was obtained by reducing AgNO3 using andaliman fruit water extract (Zanthoxylum acanthopodium DC.). This synthesis method is very effective because it is fast, non-toxic and environmentally friendly technology. This research aims to synthesize optimum NPAg and its application in the photodegradation process of Indigosol Blue in the form of volume, irradiation time, and optimum pH. NPAg synthesis was observed using a UV-VIS spectrophotometer while its size was observed using PSA (Particle Size Analyzer). The results showed the best NPAg synthesized using 1x10-3 M AgNO3 at 60°C with average NPAg size of 9.04 nm. NPAg which is formed is stable for ± 35 days. The optimum condition for the photodegradation process was achieved by using 2 mL NPAg 4 hour irradiation at pH 3. From the results of this study it can be concluded that NPAg can to reduce the concentration of Indigosol Blue dye by up to 94.75%.

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V-doped titanium mixed oxides as efficient catalysts for oxidation of alcohols and olefins

Cited by 26 publications

References 31 publications

Green synthesis and characterization of silver nanoparticles by Allium cepa L. to produce silver nano‐coated fabric and their antimicrobial evaluation

Green synthesis and characterization of silver nanoparticles by Allium cepa L. to produce silver nano‐coated fabric and their antimicrobial evaluation

Green synthesis of nanostructured silver particles and their catalytic application in dye degradation

Synthesis of Silver Nanoparticles (NPAg) using Andaliman (Zanthoxylum acanthopodium DC.) Fruit Water Extract and Its Application in Indigosol Blue Photodegradation

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