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1 article(s) from Rostami-Vartooni, Akbar

Green synthesis, characterization and catalytic activity of natural bentonite-supported copper nanoparticles for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol

Akbar Rostami-Vartooni,
Mohammad Alizadeh and
Mojtaba Bagherzadeh

Beilstein J. Nanotechnol. 2015, 6, 2300–2309, doi:10.3762/bjnano.6.236

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Scheme 1: The major components of Thymus vulgaris. Thymol (1), carvacrol (2), p-cymene (3) and γ-terpinene (4...

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Figure 1: UV–vis spectrum of an aqueous extract of Thymus vulgaris.

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Figure 2: FTIR spectra of (a) natural bentonite and the (b) Cu NPs/bentonite composite.

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Figure 3: The XRD patterns of natural bentonite (a) and Cu NPs/bentonite (b).

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Figure 4: Typical FE-SEM images of Cu NPs/bentonite. Scale bar: (a) 1 µm and (b) 200 nm.

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Figure 5: EDS spectrum of Cu NPs/bentonite.

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Figure 6: Typical TEM images of Cu NPs/bentonite (a,b), the histogram of the particle size distribution of Cu...

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Figure 7: The N₂ adsorption–desorption isotherm (a) and Barrett–Joyner–Halenda (BJH) pore size distribution p...

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Scheme 2: Synthesis of 1-phenyl-1H-1,2,3,4-tetrazole (R = phenyl).

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Scheme 3: The proposed mechanism for the preparation of 1-phenyl-1H-1,2,3,4-tetrazole.

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Figure 8: Conversion against number of catalytic cycles for the preparation 1-phenyl-1H-1,2,3,4-tetrazole wit...

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Figure 9: UV–vis absorption spectra of 4-NP (a) and 4-NP + NaBH₄ (b) at several intervals. Conditions: [4-NP]...

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Figure 10: Plot of ln(A_t/A₀) vs irradiation time for 4-NP reduction. Conditions: [4-NP] = 2.5 × 10⁻³ M; [NaBH₄...

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Published 03 Dec 2015

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