TY - JOUR
T1 - Spectroscopic characterization and photocatalytic activity of vanadosilicate AM-6 towards the degradation of 2,5-Dichlorophenol
AU - Streimer, Sophia
AU - Tekin, Rumeysa
AU - Mastandrea, Joie Ann
AU - Kilduff, Kayla
AU - Warzywoda, Juliusz
AU - Sacco, Albert
AU - Ismail, Mariam N.
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/2/15
Y1 - 2020/2/15
N2 - Vanadosilicate AM-6 crystals were synthesized using two methods – a structure-directing agent (SDA) method (i.e., non-porous), and a non-SDA method (i.e., porous). As a result, two types of AM-6 crystal products were obtained as evidenced by XRD, SEM, BET surface area measurements, and Raman and UV–vis spectroscopic analyses. These porous and non-porous AM-6 crystal products were used to determine the rate of photodegradation of a selected organic compound, 2,5 dichlorophenol (2,5-DCP). Both crystal products showed enhanced photocatalytic activity as compared to photolysis. Furthermore, the rate of degradation was found to be higher for the porous AM-6 products as compared to the non-porous crystals under UV light irradiation. This variance was attributed to differences in crystal quality. Raman and diffuse reflectance UV–vis spectroscopies showed more disorder along the ⋯V–O–V⋯ chains for porous AM-6 products. Thus, the higher photocatalytic degradation rate of 2,5-DCP is likely due to the presence of more accessible V[sbnd]OH sites.
AB - Vanadosilicate AM-6 crystals were synthesized using two methods – a structure-directing agent (SDA) method (i.e., non-porous), and a non-SDA method (i.e., porous). As a result, two types of AM-6 crystal products were obtained as evidenced by XRD, SEM, BET surface area measurements, and Raman and UV–vis spectroscopic analyses. These porous and non-porous AM-6 crystal products were used to determine the rate of photodegradation of a selected organic compound, 2,5 dichlorophenol (2,5-DCP). Both crystal products showed enhanced photocatalytic activity as compared to photolysis. Furthermore, the rate of degradation was found to be higher for the porous AM-6 products as compared to the non-porous crystals under UV light irradiation. This variance was attributed to differences in crystal quality. Raman and diffuse reflectance UV–vis spectroscopies showed more disorder along the ⋯V–O–V⋯ chains for porous AM-6 products. Thus, the higher photocatalytic degradation rate of 2,5-DCP is likely due to the presence of more accessible V[sbnd]OH sites.
KW - 2,5-Dichlorophenol
KW - AM-6
KW - Photocatalysis
KW - Vanadosilicate
UR - http://www.scopus.com/inward/record.url?scp=85076579203&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2019.112250
DO - 10.1016/j.jphotochem.2019.112250
M3 - Article
AN - SCOPUS:85076579203
SN - 1010-6030
VL - 389
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
M1 - 112250
ER -