TY - JOUR
T1 - Synthesis, characterizations, and photocatalytic activity of ZnO/NiBi2O4
AU - Esnawan, Tesar Chandra
AU - Apriandanu, Dewangga Oky Bagus
AU - Surya, Rizki Marcony
AU - Watarai, Hitoshi
AU - Ridwan, Muhammad
AU - Yulizar, Yoki
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/6/15
Y1 - 2024/6/15
N2 - ZnO/NiBi2O4 was successfully synthesized using patikan kebo leaf extract (PKLE) in a two-phase system. The band gap value of ZnO/NiBi2O4 was 2.72 eV, which is actively in the visible region. The photocatalytic activity of ZnO/NiBi2O4 showed better degradation of malachite green than that of ZnO and NiBi2O4. The degradation efficiency over ZnO/NiBi2O4, NiBi2O4, and ZnO were 92.30 %, 77.33 %, and 55.99 %, respectively, under visible light for 120 min. The reaction rate constant using ZnO/NiBi2O4 was greater than that of ZnO and NiBi2O4, suggesting that the modification of ZnO with NiBi2O4 increased the photodegradation activity by hindering the photorecombination of electron-holes in ZnO. Notably, O2∙–, ∙OH, and h+ are identified as crucial species that play a vital role in the degradation process confirmed by reactive oxygen species (ROS) analysis. This work studied potential ZnO/NiBi2O4 materials for photocatalytic dye degradation applications.
AB - ZnO/NiBi2O4 was successfully synthesized using patikan kebo leaf extract (PKLE) in a two-phase system. The band gap value of ZnO/NiBi2O4 was 2.72 eV, which is actively in the visible region. The photocatalytic activity of ZnO/NiBi2O4 showed better degradation of malachite green than that of ZnO and NiBi2O4. The degradation efficiency over ZnO/NiBi2O4, NiBi2O4, and ZnO were 92.30 %, 77.33 %, and 55.99 %, respectively, under visible light for 120 min. The reaction rate constant using ZnO/NiBi2O4 was greater than that of ZnO and NiBi2O4, suggesting that the modification of ZnO with NiBi2O4 increased the photodegradation activity by hindering the photorecombination of electron-holes in ZnO. Notably, O2∙–, ∙OH, and h+ are identified as crucial species that play a vital role in the degradation process confirmed by reactive oxygen species (ROS) analysis. This work studied potential ZnO/NiBi2O4 materials for photocatalytic dye degradation applications.
KW - Patikan kebo extract
KW - Photocatalytic activity
KW - Two-phase synthesis
KW - ZnO/NiBiO
UR - http://www.scopus.com/inward/record.url?scp=85189475699&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2024.136387
DO - 10.1016/j.matlet.2024.136387
M3 - Article
AN - SCOPUS:85189475699
SN - 0167-577X
VL - 365
JO - Materials Letters
JF - Materials Letters
M1 - 136387
ER -