J 2019

Photochemical degradation of the environmental pollutants over the worm-like Nd 2 CuO 4 -Nd 2 O 3 nanostructures

PADERVAND, Mohsen; Gerhard LAMMEL; Alireza BARGAHI a Hamid MOHAMMAD-SHIRI

Základní údaje

Originální název

Photochemical degradation of the environmental pollutants over the worm-like Nd 2 CuO 4 -Nd 2 O 3 nanostructures

Autoři

PADERVAND, Mohsen; Gerhard LAMMEL; Alireza BARGAHI a Hamid MOHAMMAD-SHIRI

Vydání

Nano-Structures and Nano-Objects, Elsevier BV, 2019, 2352-507X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10403 Physical chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00113636

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Electrochemical synthesis; Nd 2 CuO 4; Photodegradation; SVOCs

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 15. 4. 2020 16:45, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The synthesis of Nd2CuO4-Nd2O3 photosensitive nanocomposites by a combined electrochemical deposition-pyrolysis method is reported for the first time. The X-ray diffraction powder (XRD) analysis was well demonstrated the formation of the Nd2CuO4 tetragonal and Nd2O3 hexagonal (partially cubic) phases in the heterostructures. Scanning electron microscopy (SEM), energy dispersive x-ray (EDX), fourier transform infrared spectroscopy (FTIR), diffuse reflectance spectra (DRS), and Brunauer–Emmett–Teller (BET) specific surface area analysis methods were also used to characterize the samples. The results of DRS analysis showed that the photocatalyst has the band gap of 3.3 eV describing its response to ultraviolet (UV) photons. The catalytic activity was evaluated by photodegradation of two semivolatile organic compounds (SVOCs) i.e., 4-methoxy-2-nitrophenol (4Mx2Np) and 3-methyl-4-nitrophenol (3M4Np) which are known as important pollutions in the atmosphere. The pH effect, kinetics and mechanism of the photoreactions were also discussed. The recycling experiments were also performed and the results indicated that the prepared photocatalysts have high capacity for subsequent removal of the pollutants under ultraviolet light.