Nanosized zirconium phosphate/AgCl composite materials: a new synergy for efficient photocatalytic degradation of organic dye pollutants

2015 ◽  
Vol 3 (10) ◽  
pp. 5525-5534 ◽  
Author(s):  
Monica Pica ◽  
Morena Nocchetti ◽  
Berardo Ridolfi ◽  
Anna Donnadio ◽  
Ferdinando Costantino ◽  
...  

Silver exchanged nanosized zirconium phosphate is used as a source of Ag+ ions in the preparation of AgCl. The zirconium phosphate/AgCl composites work better than pure AgCl in the photoassisted degradation of Rhodamine B.

2019 ◽  
Vol 43 (8) ◽  
pp. 3469-3475 ◽  
Author(s):  
Gang Liu ◽  
Yuzhuo Zhang ◽  
Lin Xu ◽  
Bingbing Xu ◽  
Fengyan Li

Bi2WO6 and polyoxometalate nanocomposites exhibited superior photocatalytic performance for degradation of organic dye rhodamine B under visible light.


RSC Advances ◽  
2020 ◽  
Vol 10 (50) ◽  
pp. 29808-29820 ◽  
Author(s):  
Najmeh Ahmadpour ◽  
Mohammad Hossein Sayadi ◽  
Shahin Homaeigohar

In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation.


RSC Advances ◽  
2017 ◽  
Vol 7 (30) ◽  
pp. 18293-18304 ◽  
Author(s):  
Eslam Abroushan ◽  
Saeed Farhadi ◽  
Abedien Zabardasti

A novel magnetically recyclable Ag3PO4/CoFe2O4 nanocomposite was synthesized by a facile hydrothermal method and its photocatalytic/catalytic performance for the degradation of organic dyes or reduction of nitro compounds was investigated.


Author(s):  
Anuradha Sharma ◽  
Anuj Mittal ◽  
Shankar Sharma ◽  
Kavitha Kumari ◽  
Sanjeev Maken ◽  
...  

2020 ◽  
Vol 20 (3) ◽  
pp. 1697-1703 ◽  
Author(s):  
Fei Li ◽  
Chuan Lu ◽  
Bin Xu ◽  
Li-Yuan Cheng

TiO2 doped layered zirconium phosphates were prepared by the hydrofluoric acid (HF) method and its photocatalytic performance was investigated in this study. Through the introduction of octylamine which acts as the intercalation and exfoliation reagent in the process, TiO2 could be uniformly generated and dispersed on the zirconium phosphate matrix through tetrabutyl titanate hydrolysis and calcination. The nano-scale TiO2 was obtained by applying the appropriate ratio of tetrabutyl titanate and layered zirconium phosphate in reaction. XRD, N2-sorption, FT-IR, UV-vis, SEM and TEM were used to characterize the structure and phtocatalytic properties of the samples. The photocatalytic performance of synthesized nano-scale TiO2 doped zirconium phosphates was studied by degradation of Rhodamine B (RhB). It is found that the scavenging rate of RhB could be up to 65% within 90 min under the visible light irradiation due to the relatively large active surface area and compact size of TiO2. This study highlights the potential application of TiO2 doped layered zirconium phosphate as a novel photocatalyst in photocatalytic degradation of organic pollutants.


Catalysts ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 3 ◽  
Author(s):  
Monica Pica ◽  
Silvia Calzuola ◽  
Anna Donnadio ◽  
Pier Gentili ◽  
Morena Nocchetti ◽  
...  

A composite heterogeneous photocatalyst based on silver bromide was prepared by a reaction of silver exchanged zirconium phosphate (ZrP) and HBr. The ZrP/AgBr composite containing 53 wt% AgBr was tested in the photocatalytic degradation of Rhodamine B (RhB) and exhibited higher catalytic activity with respect to pure AgBr. As a matter of fact, the time needed to achieve a percentage of chromophore cleavage of about 90% was 3 min for the composite versus the 30 min needed for pure AgBr. The ZrP/AgBr composite turned out to be stable for at least three consecutive cycles. The UV-Vis spectra of the RhB solution, recorded at different irradiation times, were also decomposed and the concentration of the species formed by de-ethylation and cleavage processes during photocatalysis were calculated; the data obtained for the AgBr-based catalysis were also compared with those for the AgCl-based catalysis, and the degradation mechanism was suggested for both catalytic systems.


RSC Advances ◽  
2018 ◽  
Vol 8 (30) ◽  
pp. 16850-16857 ◽  
Author(s):  
Jingzhu Liu ◽  
Tong Shu ◽  
Lei Su ◽  
Xueji Zhang ◽  
Michael J. Serpe

CdS quantum dots (CdSQDs) were generated inside the network structure of poly (N-isopropylacrylamide)-co-(acrylic acid) (pNIPAm-co-AAc) microgels and their ability to photocatalytically degrade organic dyes was evaluated using rhodamine B (RhB).


Heliyon ◽  
2018 ◽  
Vol 4 (7) ◽  
pp. e00681 ◽  
Author(s):  
David Dodoo-Arhin ◽  
Frederick Paakwah Buabeng ◽  
Julius M. Mwabora ◽  
Prince Nana Amaniampong ◽  
Henry Agbe ◽  
...  

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