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

Rostami-Vartooni, Akbar; Alizadeh, Mohammad; Bagherzadeh, Mojtaba

doi:10.3762/bjnano.6.236

Cited by 66 publications

(14 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Only Cu nanoparticles over bentonite and Cu/Cu 2 O/C have comparable results with our samples. However, the advantage of the materials we propose lies in the inexpensive synthesis (we treat wastewaters to adsorb metals on our catalysts).…”

Section: Resultssupporting

confidence: 81%

Eco‐friendly synthesis from industrial wastewater of Fe and Cu nanoparticles over NaX zeolite and activity in 4‐nitrophenol reduction

et al. 2018

View full text Add to dashboard Cite

We deposited Fe and Cu over zeolite NaX (Fe/NaX and Cu/NaX) by adsorption from effluent industrial wastewater. We synthesized the zeolite NaX by the hydrothermal method. 5 g of NaX completely adsorbed 350 and 380 mg of Fe and Cu from the industrial wastewater, respectively, in 6 h. The distribution of Fe and Cu over the NaX was uniform and amounted at 14 and 18 mass%, respectively. Fe and Cu modify the morphology of the NaX zeolite: the particle size increased from 9 μm to 10 μm for the former and decreased to 3 μm for the latter. Fe/NaX and Cu/NaX are less crystalline than NaX. BET analysis showed that the specific surface area decreased by 30 % and 50 % compared to NaX for Fe/NaX and Cu/NaX, but the ratio between meso‐ and micropores increased by 7 and 13 times, respectively. Fe/NaX and Cu/NaX synthesized by adsorption from industrial wastewater reduced +99 % of 4‐p‐nitrophenol to 4‐aminophenol in less than 100 s, which is comparable to noble metal.

show abstract

Section: Resultssupporting

confidence: 81%

Eco‐friendly synthesis from industrial wastewater of Fe and Cu nanoparticles over NaX zeolite and activity in 4‐nitrophenol reduction

et al. 2018

View full text Add to dashboard Cite

show abstract

“…A rate constant of 0.027 s −1 and the reaction yield 99 % in 2.5 min was achieved for the reduction reaction, which is comparable to the best reported in the literature. Bagherzadeh and co‐workers were also synthesized Cu NPs/bentonite via a green route using Thymus vulgaris extract as a reducing and stabilizing agent. Further, they have found that the Cu NPs/bentonite is highly active and recyclable catalyst for the reduction of 4‐nitrophenol.…”

Section: Cu Nanoparticle Catalystsmentioning

confidence: 99%

Cu‐Based Nanoparticles as Emerging Environmental Catalysts

Deka

Borah

Saikia

et al. 2018

The Chemical Record

View full text Add to dashboard Cite

This account provides an overview of current research activities on nanoparticles containing the earth-abundant and inexpensive element copper (Cu) and Cu-based nanoparticles, especially in the field of environmental catalysis. The different synthetic strategies with possible modification of the chemical/ physical properties of these nanoparticles using such strategies and/or conditions to improve catalytic activity are presented. The design and development of support and/or bimetallic systems (e. g., alloys, intermetallic, etc.) are also included. Herein, we report synthetic approaches of Cu and Cu-based nanoparticles (monometallic copper, bimetallic copper and copper (II) oxide nanoparticles/nanostructures) and impregnation of such nanoparticles onto support material (e. g., Co O nanostructure), along with their applications as environmental catalyst for various oxidation and reduction reactions. Finally, this account provides necessary advances and perspectives of Cu-based nanoparticles in the environmental catalysis.

show abstract

“…In 2015, Rostami‐Vartooni and co‐workers reported a green procedure for the preparation copper nanoparticles on the surface of bentonite (Cu NPs/bentonite) as a natural support by using Thymus vulgaris extract . The result of FE‐SEM (Figure ) demonstrated the formation of spherical particles Cu NPs on external and interlayer spaces.…”

Section: Synthesis Of 1‐substituted 1h‐1234‐tetrazolesmentioning

confidence: 99%

Recent Developments in the Biosynthesis of Cu‐Based Recyclable Nanocatalysts Using Plant Extracts and their Application in the Chemical Reactions

Nasrollahzadeh

Ghorbannezhad

Issaabadi

et al. 2018

The Chemical Record

View full text Add to dashboard Cite

Copper nanoparticles (NPs) are one of the most commercialized nanomaterials. From the standpoint of nanotechnology copper-based nanostructured materials have many applications in biological process, folk medicine, electronics, and industrial fields. With growing concern regarding the energy crisis and problems of chemical and physical procedures to prepare the metal nanoparticles, efforts for alternative traditional chemistry attracted particular considerations. A widespread of researches have studied on biological methods which do not generate hazardous waste and therefore, don't need the purification processes. Plants could be remarkably valuable to exploring the biogenic synthesis of metal nanoparticles. The aim of this review is to provide further insight in to connections between plant extracts and synthesis of copper NPs. The utilization of living plants for biosynthesis of metal nanoparticles (MNPs) is a cost-effective and eco-friendly procedure. To date, the obtained results demonstrated several aspects of the plant physiology and their relations to nanoparticle synthesis. This work describes the state of the art and future challenges in green synthesis of copper NPs. This review has proven recent elevation in the green synthesis of Cu NPs, CuO NPs, Cu O NPs, CuS NPs, CuAl O and immobilized copper nanoparticles on the numerous supports such as Natrolite, bentonite, perlite, ZnO, MgO, MnO , reduced graphene oxide (RGO), and Fe O by a wide range of plant extracts. Therefore, detailed description of green synthesis and stabilizing agents concerning copper nanoparticles using these green sources is presented. Also, the catalytic activities of synthesized Cu-based recyclable nanocatalysts using various plant extracts in several chemical reactions such as oxidation, reduction, hydration, cyanation, cycloaddition, and coupling reactions were consciously investigated.

show abstract

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

Cited by 66 publications

References 41 publications

Eco‐friendly synthesis from industrial wastewater of Fe and Cu nanoparticles over NaX zeolite and activity in 4‐nitrophenol reduction

Eco‐friendly synthesis from industrial wastewater of Fe and Cu nanoparticles over NaX zeolite and activity in 4‐nitrophenol reduction

Cu‐Based Nanoparticles as Emerging Environmental Catalysts

Recent Developments in the Biosynthesis of Cu‐Based Recyclable Nanocatalysts Using Plant Extracts and their Application in the Chemical Reactions

Contact Info

Product

Resources

About