TY - JOUR
T1 - Simple sonochemical synthesis of lanthanum tungstate (La2(WO4)3) nanoparticles as an enhanced electrocatalyst for the selective electrochemical determination of anti-scald-inhibitor diphenylamine
AU - Sundaresan, Periyasamy
AU - Gnanaprakasam, Periyasami
AU - Chen, Shen Ming
AU - Mangalaraja, Ramalinga Viswanathan
AU - Lei, Wu
AU - Hao, Qingli
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/11
Y1 - 2019/11
N2 - In this work, lanthanum tungstate (La2(WO4)3) nanoparticles (NPs) were synthesized by facile sonochemical method (elmasonic P, under-sonication 37/100 kHz, ~60 W energy) and utilized as an electrode material for the selective and sensitive electrochemical determination of anti-scald inhibitor diphenylamine (DPA). The synthesized La2(WO4)3 NPs were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDAX), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) analyses. The results revealed that the sonochemically synthesized La2(WO4)3 nanoparticles were with high crystallinity and uniformly distributed nanoparticles like structure. The as-prepared lanthanum tungstate NPs exhibited an excellent electrocatalytic behavior for DPA determination with the lowest detection limit of 0.0024 µM, wide linear range response of 0.01–58.06 µM and a remarkable sensitivity of 1.021 µA µM−1 cm−2. Furthermore, La2(WO4)3 NPs showed a good recovery to DPA in apple juice sample. Besides, the electrochemical mechanism of the DPA oxidation reaction was provided in detail.
AB - In this work, lanthanum tungstate (La2(WO4)3) nanoparticles (NPs) were synthesized by facile sonochemical method (elmasonic P, under-sonication 37/100 kHz, ~60 W energy) and utilized as an electrode material for the selective and sensitive electrochemical determination of anti-scald inhibitor diphenylamine (DPA). The synthesized La2(WO4)3 NPs were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDAX), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) analyses. The results revealed that the sonochemically synthesized La2(WO4)3 nanoparticles were with high crystallinity and uniformly distributed nanoparticles like structure. The as-prepared lanthanum tungstate NPs exhibited an excellent electrocatalytic behavior for DPA determination with the lowest detection limit of 0.0024 µM, wide linear range response of 0.01–58.06 µM and a remarkable sensitivity of 1.021 µA µM−1 cm−2. Furthermore, La2(WO4)3 NPs showed a good recovery to DPA in apple juice sample. Besides, the electrochemical mechanism of the DPA oxidation reaction was provided in detail.
KW - (La(WO))
KW - Anti-scald-inhibitor
KW - Diphenylamine
KW - Electrocatalyst
KW - Nanoparticles
KW - Sonochemical
UR - http://www.scopus.com/inward/record.url?scp=85068055263&partnerID=8YFLogxK
U2 - 10.1016/j.ultsonch.2019.104647
DO - 10.1016/j.ultsonch.2019.104647
M3 - Article
C2 - 31450323
AN - SCOPUS:85068055263
SN - 1350-4177
VL - 58
JO - Ultrasonics Sonochemistry
JF - Ultrasonics Sonochemistry
M1 - 104647
ER -