Silver nanoparticles: facile synthesis and their catalytic application for the degradation of dyes

RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 25781-25788 ◽  
Author(s):  
Kamaldeep Sharma ◽  
Gurpreet Singh ◽  
Gurpreet Singh ◽  
Manoj Kumar ◽  
Vandana Bhalla
Keyword(s):  
Room Temperature ◽  
Dye Degradation ◽  
Catalytic Efficiency ◽  
Organic Dye ◽  
Facile Synthesis ◽  
Catalytic Application ◽  
Degradation Of Dyes ◽  
Organic Dye Degradation ◽  
Aldehyde Groups

The aggregates of pentacenequinone, HPB and PDI derivatives 3, 5 and 7 having aldehyde groups bind strongly with Ag+ and serve as reactors and stabilizers for the preparation of AgNPs at room temperature. In situ generated AgNPs show high catalytic efficiency for industrially important organic dye degradation.

scholarly journals In situ growth of CuS NPs on 3D porous cellulose macrospheres as recyclable biocatalysts for organic dye degradation

RSC Advances ◽  
2021 ◽  
Vol 11 (58) ◽  
pp. 36554-36563
Author(s):  
Zhouquan Sun ◽  
Yi Zhong ◽  
Hong Xu ◽  
Bijia Wang ◽  
Linping Zhang ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Dye Degradation ◽  
Organic Dye ◽  
Rapid Cycling ◽  
In Situ Growth ◽  
Organic Dye Degradation

CuS nanoparticles were grown in situ on 3D porous cellulose macrospheres for an excellent rapid cycling removal of organic dyes.

Catalytic performance of supported g-C3N4 on MCM-41 in organic dye degradation with peroxymonosulfate

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 70747-70755 ◽  
Author(s):  
Huijie Dong ◽  
Mingyu Wei ◽  
Jun Li ◽  
Jia Fang ◽  
Long Gao ◽  
...  
Keyword(s):  
Carbon Nitride ◽  
Dye Degradation ◽  
Catalytic Performance ◽  
Organic Dye ◽  
Graphitic Carbon Nitride ◽  
Efficient Catalyst ◽  
Organic Dye Degradation ◽  
Mcm 41 ◽  
Dyes Degradation

The supported graphitic carbon nitride on MCM-41 was prepared through an in situ thermal approach and was successfully used as an efficient catalyst for dyes degradation with peroxymonosulfate.

Bi3O4Br nanoplates as an efficient piezo-photocatalyst for organic dye degradation

2021 ◽  
pp. 2150119
Author(s):  
Qin Zhou ◽  
Jing Jiang
Keyword(s):  
Ultrasonic Vibration ◽  
Apparent Rate Constant ◽  
Dye Degradation ◽  
Catalytic Efficiency ◽  
Organic Dye ◽  
Charge Carriers ◽  
Calcination Process ◽  
Organic Dye Degradation ◽  
Piezoelectric Field ◽  
The Individual

The layered Bi3O4Br nanoplates were synthesized through a simple calcination process, which can simultaneously harvest visible light and ultrasonic vibration to realize the effective piezo-photocatalysis. The piezo-photocatalysis over the Bi3O4Br leads to a great enhancement in catalytic efficiency with respect to the pure photocatalysis or piezocatalysis. The apparent rate constant of piezo-photocatalysis for the degradation of MO achieves to be 0.008 min[Formula: see text], which is 5.20 and 1.51 times as high as the individual piezocatalysis and photocatalysis, respectively. This enhancement would be attributed to the built-in piezoelectric field induced by ultrasonic vibration facilitating the separation of charge carriers in photoexcited Bi3O4Br.

scholarly journals ZnO-based mutable Ag2S/Ag2O multilayered architectures for organic dye degradation and inhibition of E. coli and B. subtilis

2020 ◽  
Vol 394 ◽  
pp. 112472 ◽  
Author(s):  
Summal Zoha ◽  
Muneeb Ahmad ◽  
Syed Jazib Abbas Zaidi ◽  
Muhammad Naeem Ashiq ◽  
Waheed Ahmad ◽  
...  
Keyword(s):  
Dye Degradation ◽  
Organic Dye ◽  
E Coli ◽  
Organic Dye Degradation

scholarly journals Application of fungal copper carbonate nanoparticles as environmental catalysts: organic dye degradation and chromate removal

Microbiology ◽  
2021 ◽  
Vol 167 (12) ◽  
Author(s):  
Feixue Liu ◽  
Dinesh Singh Shah ◽  
Laszlo Csetenyi ◽  
Geoffrey Michael Gadd
Keyword(s):  
Photoelectron Spectroscopy ◽  
Catalytic Properties ◽  
Dye Degradation ◽  
Antibacterial Properties ◽  
Toxic Metal ◽  
Catalytic Efficiency ◽  
Methyl Red ◽  
Copper Carbonate ◽  
Wide Range ◽  
Organic Dye Degradation

Biomineralization is a ubiquitous process in organisms to produce biominerals, and a wide range of metallic nanoscale minerals can be produced as a consequence of the interactions of micro-organisms with metals and minerals. Copper-bearing nanoparticles produced by biomineralization mechanisms have a variety of applications due to their remarkable catalytic efficiency, antibacterial properties and low production cost. In this study, we demonstrate the biotechnological potential of copper carbonate nanoparticles (CuNPs) synthesized using a carbonate-enriched biomass-free ureolytic fungal spent culture supernatant. The efficiency of the CuNPs in pollutant remediation was investigated using a dye (methyl red) and a toxic metal oxyanion, chromate Cr(VI). The biogenic CuNPs exhibited excellent catalytic properties in a Fenton-like reaction to degrade methyl red, and efficiently removed Cr(VI) from solution due to both adsorption and reduction of Cr(VI). X-ray photoelectron spectroscopy (XPS) identified the oxidation of reducing Cu species of the CuNPs during the reaction with Cr(VI). This work shows that urease-positive fungi can play an important role not only in the biorecovery of metals through the production of insoluble nanoscale carbonates, but also provides novel and simple strategies for the preparation of sustainable nanomineral products with catalytic properties applicable to the bioremediation of organic and metallic pollutants, solely and in mixtures.

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