Enhanced photocatalytic hydrogen evolution by novel Nb-doped SnO₂/V₂O₅ heteronanostructures under visible light with simultaneous basic red 46 dye degradation

Abstract

To cite this article: Abbas Sadeghzadeh-Attar (2020) Enhanced photocatalytic hydrogen evolution by novel Nb-doped SnO 2 /V 2 O 5 heteronanostructures under visible light with simultaneous basic red 46 dye degradation,

Recent insights into SnO2-based engineered nanoparticles for sustainable H2generation and remediation of pesticides

“…The optimum amount of Nb doping to obtain the maximum evolution rate of H 2 gas is 2 mol%, which is 3 and 1.45 times higher than that of the SnO 2 nanotubes and SnO 2 /V 2 O 5 heterostructure, respectively, for the same time duration. 199…”

Binary Zn-Doped SnO2/Al2O3 Nanotube Composites for Visible-Light-Driven Photocatalytic Degradation of Basic Blue 41

“…SnO 2 nanotubes was synthesized through a LPD process as described in our previous work. 38 A similar procedure was used to synthesize Zndoped SnO 2 /Al 2 O 3 nanocomposites (5 mol % Zn). Zn(NO 3 ) 2 •6H 2 O (98%; Sigma-Aldrich) was used as a dopant material.…”

“…39 The simultaneous use of a charge-transfer catalyst such as Al 2 O 3 and doping with metals to prepare a binary SnO 2based photocatalyst can be an alternative way to improve the photocatalytic activities, which trap the photogenerated e − /h + pairs and delay their recombination. 38 In the SnO 2 /Al 2 O 3 nanocomposite, the transfer of photogenerated electrons of SnO 2 to the defect levels of alumina greatly helps the separation of charge carriers. To the best of author's knowledge, there is no report that alumina has been used as an effective material to design an efficient SnO…”

An overview: recent development of semiconductor/graphene nanocomposites for photodegradation of phenol and phenolic compounds in aqueous solution

“…However, the aforementioned strategies may not be very beneficial, due to the expensive equipment involved in these methods, slow and nondestructive to a great number of persistent organic contaminants [2,3]. Among the numerous methods, heterogeneous photocatalysis method is one of the most efficient strategies of water decontamination due to the its potential to degrade organic pollutants and produce some products including CO 2 and H 2 O [4,5]. Heterogeneous photocatalysis involves the utilization of a semiconductor catalysts like TiO 2 , Ag 3 PO 4 , CdS, SnS 2 , CaFe 2 O 4 , Fe 2 O 3 , CdS, which illuminated with light (suitable wavelength) in order to form highly active species such as • OH, • O 2 − for degradation of organic contaminants.…”