Photocatalysis in a packed bed: Degradation of organic dyes by immobilized silver nanoparticles

Zhou, Ru; Srinivasan, M.P.

doi:10.1016/j.jece.2015.02.004

Cited by 30 publications

(7 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gold nanoparticles (AuNPs) have been widely studied because of their unique physical and chemical properties and their potential use in environmental and medical areas (Dhamecha et al 2016;Shanker et al 2016), for example, the use of AuNPs in remediation processes and wastewater treatment. Wastewater could contain organic dyes and toxic substances from textile, cosmetic and paper processing industries, which use them to color their products (Rasheed et al 2018;Salem et al 2018;Zhou and Srinivasan 2015). These industrial effluents could reach rivers and lakes, leading to an enormous risk to flora, fauna and human health.…”

Section: Introductionmentioning

confidence: 99%

Catalytic and antibacterial properties of gold nanoparticles synthesized by a green approach for bioremediation applications

et al. 2019

View full text Add to dashboard Cite

In this work, we are proposing the green synthesis of gold nanoparticles (AuNPs) using aqueous extracts of A. triphylla and evaluating their antibacterial and catalytic properties. Characterization was performed by UV-Vis and FT-IR spectroscopies, X-ray diffraction, and transmission electron microscopy (TEM). Antibacterial activity of AuNPs was analyzed using E. coli and S. Aureus and catalytic activity was determined by the degradation of methylene blue and congo red. UV-Vis analysis showed an increase in AuNPs concentration by increasing the extract concentration, volume extract, and precursor salt concentration. The crystalline nature of AuNPs was corroborated by X-ray diffraction. TEM analysis showed nanoparticles with spherical morphology (mostly) and size between 40 and 60 nm. These results are novel because they showed a homogeneous morphology and a narrow size distribution which is difficult to obtain in green synthesis processes. Results of antibacterial activity showed inhibition zones of 11.3 mm and 10.6 mm for S. Aureus and E. coli, respectively, indicating the bactericidal capacity of the nanoparticles. The degradation periods for methylene blue and congo red were 5 and 11 min, respectively, which are very short compared with previous reports. These results are of great significance for catalytic applications. Therefore, A. triphylla extracts made possible AuNPs synthesis and the nanoparticles obtained can be used as catalytic and antibacterial materials for water remediation.

show abstract

Section: Introductionmentioning

confidence: 99%

Catalytic and antibacterial properties of gold nanoparticles synthesized by a green approach for bioremediation applications

et al. 2019

View full text Add to dashboard Cite

show abstract

“…It is well known that nanomaterials are of varied forms such as rods, thin films, powder, and so on [26,27]. Photo-catalytic property of a catalyst depends on its lattice morphology, band gap, surface area, particle size, crystalline nature and extent of hydration to its surface [28]. With respect to the photo-catalysis process, the unique properties of ferrites find applications in degradation of pollutants from atmosphere and water, photochemical water splitting etc.…”

Section: Photo-catalysis Perspectivementioning

confidence: 99%

An Overview on Magnetic Separable Spinel as a Promising Materials for Photocatalysis and Waste Water Treatment

Malik¹,

Singh²,

Kumar³

et al. 2022

ES Energy Environ.

View full text Add to dashboard Cite

In the recent times, the demand of the energy and the environmental pollution is the main concern of the global. Due to their significant chemical, physical and magnetic properties spinel-based materials are prominently used in the field of photocatalysis and water splitting. In the present report is emphasis on the fundamental's understandings for their size, shape, chemical and the degradation of various pharmaceutical drugs, pesticides, and textile dye materials. This report explained the way of formation, characteristics and the wide applications of the spinel-based materials in the vast energy and environmental research. Based on the future prospectus of the energy and the cost effectiveness this spinel-based materials plays an important role in hydrogen generation as well as in catalytic activities.

show abstract

“…Repeating redox cycles of calix [7]hydroquinone CA-41 can be implemented to vary sizes of plates in a range of 100 nm and more. Further study of AgNP properties in the same research group [69] was conducted, and it was shown that nanoparticles obtained were capable of photodegradation of various organic dyes (methyl orange, methylene blue and rhodamine chloride).…”

Section: Calix[n]arene-based Agnps Obtained Using Electrochemical Redmentioning

confidence: 99%

The Role of Calix[n]arenes and Pillar[n]arenes in the Design of Silver Nanoparticles: Self-Assembly and Application

Padnya

Gorbachuk

Stoikov

2020

IJMS

View full text Add to dashboard Cite

Silver nanoparticles (AgNPs) are an attractive alternative to plasmonic gold nanoparticles. The relative cheapness and redox stability determine the growing interest of researchers in obtaining selective plasmonic and electrochemical (bio)sensors based on silver nanoparticles. The controlled synthesis of metal nanoparticles of a defined morphology is a nontrivial task, important for such fields as biochemistry, catalysis, biosensors and microelectronics. Cyclophanes are well known for their great receptor properties and are of particular interest in the creation of metal nanoparticles due to a variety of cyclophane 3D structures and unique redox abilities. Silver ion-based supramolecular assemblies are attractive due to the possibility of reduction by “soft” reducing agents as well as being accessible precursors for silver nanoparticles of predefined morphology, which are promising for implementation in plasmonic sensors. For this purpose, the chemistry of cyclophanes offers a whole arsenal of approaches: exocyclic ion coordination, association, stabilization of the growth centers of metal nanoparticles, as well as in reduction of silver ions. Thus, this review presents the recent advances in the synthesis and stabilization of Ag (0) nanoparticles based on self-assembly of associates with Ag (I) ions with the participation of bulk platforms of cyclophanes (resorcin[4]arenes, (thia)calix[n]arenes, pillar[n]arenes).

show abstract

Photocatalysis in a packed bed: Degradation of organic dyes by immobilized silver nanoparticles

Cited by 30 publications

References 31 publications

Catalytic and antibacterial properties of gold nanoparticles synthesized by a green approach for bioremediation applications

Catalytic and antibacterial properties of gold nanoparticles synthesized by a green approach for bioremediation applications

An Overview on Magnetic Separable Spinel as a Promising Materials for Photocatalysis and Waste Water Treatment

The Role of Calix[n]arenes and Pillar[n]arenes in the Design of Silver Nanoparticles: Self-Assembly and Application

Contact Info

Product

Resources

About