Poly(styrene-divinyl benzene)-immobilized Fe(III) complex of 1,3-bis(benzimidazolyl)benzene: Efficient catalyst for the photocatalytic degradation of xylenol orange

2018 ◽  
Vol 135 (29) ◽  
pp. 46480 ◽  
Author(s):  
Shilpa Eshwar Rao ◽  
Virupaiah Gayathri
2018 ◽  
Vol 5 (5) ◽  
pp. 055509 ◽  
Author(s):  
Ikram Ullah ◽  
Farman Ali ◽  
Zarshad Ali ◽  
Muhammad Humayun ◽  
Zain Ul wahab

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33257-33257 ◽  
Author(s):  
Mostafa Y. Nassar ◽  
Ayman A. Ali ◽  
Alaa S. Amin

Correction for ‘A facile Pechini sol–gel synthesis of TiO2/Zn2TiO2/ZnO/C nanocomposite: an efficient catalyst for the photocatalytic degradation of Orange G textile dye’ by Mostafa Y. Nassar et al., RSC Adv., 2017, 7, 30411–30421.


RSC Advances ◽  
2017 ◽  
Vol 7 (48) ◽  
pp. 30411-30421 ◽  
Author(s):  
Mostafa Y. Nassar ◽  
Ayman A. Ali ◽  
Alaa S. Amin

We have developed an efficient route for the synthesis of TiO2/Zn2TiO2/ZnO/C nanocomposites through a Pechini sol–gel method followed by heat treatment at 550 °C for 30 min.


RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38760-38773 ◽  
Author(s):  
Tanmay Bhowmik ◽  
Manas Kumar Kundu ◽  
Sudip Barman

Synthesis of ultra-small gold particles on g-C3N4 sheets was reported. This Au–C3N4 composite exhibited superior catalytic activity toward reduction of 4-nitrophenol and adsorption, photocatalytic degradation of dyes.


2020 ◽  
Vol 63 (11-14) ◽  
pp. 1314-1324 ◽  
Author(s):  
Giang H. Le ◽  
Tuan T. Nguyen ◽  
Manh B. Nguyen ◽  
Trang T. T. Quan ◽  
Trinh Duy Nguyen ◽  
...  

Abstract Fe/graphene oxide and Cu–Fe/graphene oxide nanocomposite were synthesized by the atomic implantation method to study the photocatalytic degradation of dichlorodiphenyltrichloroethane (DDT). The synthesized nanocomposites were characterized by the XRD, N2 isotherms, SEM with EDX, TEM and XPS analysis. Characterization results have reported that oxides of Cu and Fe were uniformly distributed on graphene oxide and exited in the form of Cu+ and Fe2+ ions in Cu–Fe/graphene oxide nanocomposite. The high photocatalytic DDT removal efficiency 99.7% was obtained for Cu–Fe/graphene oxide under the optimal condition of 0.2 g/L catalyst, 15 mg/L H2O2 and pH 5. It was attributed to the reduction of Fe3+ to Fe2+ by Cu+ ions and –OH radicals formation. However, it was dropped to 90.4% in the recycling study by leaching of iron and without a change in phase structure and morphology. Graphic Abstract


Author(s):  
Abniel Machín ◽  
Francisco Márquez ◽  
Kenneth Fontánez ◽  
José Duconge ◽  
María Cotto ◽  
...  

The photocatalytic degradation of two quinolone-type antibiotics (ciprofloxacin and levofloxacin) in aqueous solution was studied, using catalysts based on ZnO nanoparticles, which were synthesized by a thermal procedure. The efficiency of ZnO was subsequently optimized by incorporating different co-catalysts of gC3N4, reduced graphene oxide and nanoparticles of gold. The catalysts were fully characterized by electron microscopy (TEM and SEM), XPS, XRD, Raman, and BET surface area. The most efficient catalyst was 10%Au@ZnONPs-3%rGO-3%gC3N4, allowing to obtain degradations of both pollutants above 96%. This catalyst has the largest specific area, and its activity has been related to a synergistic effect, involving factors as relevant as the surface of the material and the ability to absorb radiation in the visible region, mainly produced by the incorporation of rGO and gC3N4 to the semiconductor. The use of different scavengers during the catalytic process, was used to establish the possible photodegradation mechanism of both antibiotics.


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