TY - JOUR
T1 - Laser-assisted deposition of Ag on self-sourced growth ZnO nanorods as reusable photocatalysts for water purification
AU - Yudasari, Nurfina
AU - Dinata, I Kadek Hariscandra
AU - Shearer, Cameron J
AU - Blanco Sanchez, Paula Helena
AU - Tresna, Wildan P
AU - Isnaeni,
AU - Suliyanti, Maria M
AU - Trilaksana, Herri
PY - 2022/12
Y1 - 2022/12
N2 - ZnO nanorods - Ag (ZnO NRs-Ag) have been fabricated using a simple and environment-friendly hydrothermal technique by immersing the zinc (Zn) metal foils in pure water under 95 °C hydrothermal condition followed by depositing Ag using a laser ablation technique. The formation of ZnO NRs-Ag is confirmed via XRD, FESEM analysis, and optical spectroscopy. The concentration of Ag can be controlled by varying the Ag deposition time, with 0.3 % obtained for 1 min ablation and 1.7 % for 5 min ablation. ZnO NRs-Ag have been tested for photocatalytic activity for Rhodamine 6G (R6G) degradation under UV AB tube luminescent (TL) lamps. The ZnO NRs-Ag with 5 min Ag PLD duration can achieve the best photocatalytic activity during 120 min of UV AB irradiation, with R6G degraded amount of 86 %. During three cycles of photocatalytic testing, all samples have shown 13–25 % decrease in R6G degradation, indicating that they are stable and reusable. Further, the degradation kinetics constant (kapp) is also determined using Langmuir-Hinshelwood (L-H) model with for all samples.
AB - ZnO nanorods - Ag (ZnO NRs-Ag) have been fabricated using a simple and environment-friendly hydrothermal technique by immersing the zinc (Zn) metal foils in pure water under 95 °C hydrothermal condition followed by depositing Ag using a laser ablation technique. The formation of ZnO NRs-Ag is confirmed via XRD, FESEM analysis, and optical spectroscopy. The concentration of Ag can be controlled by varying the Ag deposition time, with 0.3 % obtained for 1 min ablation and 1.7 % for 5 min ablation. ZnO NRs-Ag have been tested for photocatalytic activity for Rhodamine 6G (R6G) degradation under UV AB tube luminescent (TL) lamps. The ZnO NRs-Ag with 5 min Ag PLD duration can achieve the best photocatalytic activity during 120 min of UV AB irradiation, with R6G degraded amount of 86 %. During three cycles of photocatalytic testing, all samples have shown 13–25 % decrease in R6G degradation, indicating that they are stable and reusable. Further, the degradation kinetics constant (kapp) is also determined using Langmuir-Hinshelwood (L-H) model with for all samples.
KW - ZnO-Ag
KW - photocatalysis
KW - rhodamine 6G
KW - hydrothermal
KW - pulsed laser deposition
KW - green technology
UR - https://www.sciencedirect.com/science/article/pii/S1387700322008735
UR - http://www.scopus.com/inward/record.url?scp=85141578642&partnerID=8YFLogxK
U2 - https://doi.org/10.1016/j.inoche.2022.110065
DO - https://doi.org/10.1016/j.inoche.2022.110065
M3 - Article
SN - 1387-7003
VL - 146
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
M1 - 110065
ER -