TY - JOUR
T1 - Fabrication of novel SnWO4/ZnO using Muntingia calabura L. leaf extract with enhanced photocatalytic methylene blue degradation under visible light irradiation
AU - Elviera,
AU - Yulizar, Yoki
AU - Apriandanu, Dewangga Oky Bagus
AU - Marcony Surya, Rizki
N1 - Funding Information:
This research was granted by Hibah PDUPT 2021 from the Ministry of Education, Culture, Research and Technology through Universitas Indonesia no. NKB-184/UN2.RST/HKP.05.00/2021 and Graduate Scholarship 2019–2021 from BPSDMI, Ministry of Industries, Republic of Indonesia .
Publisher Copyright:
© 2021 Elsevier Ltd and Techna Group S.r.l.
PY - 2022/2/1
Y1 - 2022/2/1
N2 - In this study, SnWO4/ZnO heterostructure has been successfully constructed using Muntingia calabura L. leaf extract (MCE). We conducted phytochemical tests to qualitatively detect the presence of secondary metabolites such as alkaloids, saponins, flavonoids, and tannins, which play an essential role in the formation of SnWO4/ZnO. The photocatalytic activities of pristine SnWO4, pristine ZnO, and SnWO4/ZnO heterostructure were evaluated for the degradation of methylene blue (MB) under visible light irradiation. To investigate the photocatalytic activity of SnWO4/ZnO heterostructure in the visible region, the adsorption effect of SnWO4/ZnO was also studied. SnWO4/ZnO heterostructure shows the highest degradation percentage of 82.86% within 120 min compared to pristine SnWO4 and ZnO, which exhibit the degradation percentage of 69.48 and 40.41%, respectively. The enhanced photocatalytic of MB degradation is attributed to the formation of SnWO4/ZnO heterostructure as a result of the decreased optical bandgap from 3.06 to 2.68 eV due to the low recombination rate of photogenerated electron-hole pairs. SnWO4/ZnO shows a remarkable photocatalyst for dyes degradation with remarkable stability after four consecutive cycles. Importantly, this work demonstrates a simple eco-friendly, and low-cost green synthesis method to produce SnWO4/ZnO with excellent photocatalytic activity and stability for dyes degradation under visible light irradiation.
AB - In this study, SnWO4/ZnO heterostructure has been successfully constructed using Muntingia calabura L. leaf extract (MCE). We conducted phytochemical tests to qualitatively detect the presence of secondary metabolites such as alkaloids, saponins, flavonoids, and tannins, which play an essential role in the formation of SnWO4/ZnO. The photocatalytic activities of pristine SnWO4, pristine ZnO, and SnWO4/ZnO heterostructure were evaluated for the degradation of methylene blue (MB) under visible light irradiation. To investigate the photocatalytic activity of SnWO4/ZnO heterostructure in the visible region, the adsorption effect of SnWO4/ZnO was also studied. SnWO4/ZnO heterostructure shows the highest degradation percentage of 82.86% within 120 min compared to pristine SnWO4 and ZnO, which exhibit the degradation percentage of 69.48 and 40.41%, respectively. The enhanced photocatalytic of MB degradation is attributed to the formation of SnWO4/ZnO heterostructure as a result of the decreased optical bandgap from 3.06 to 2.68 eV due to the low recombination rate of photogenerated electron-hole pairs. SnWO4/ZnO shows a remarkable photocatalyst for dyes degradation with remarkable stability after four consecutive cycles. Importantly, this work demonstrates a simple eco-friendly, and low-cost green synthesis method to produce SnWO4/ZnO with excellent photocatalytic activity and stability for dyes degradation under visible light irradiation.
KW - Methylene blue degradation
KW - Muntingia calabura L.
KW - Photocatalytic activity
KW - SnWO/ZnO heterostructure
KW - Visible light irradiation
UR - http://www.scopus.com/inward/record.url?scp=85118565167&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2021.10.135
DO - 10.1016/j.ceramint.2021.10.135
M3 - Article
AN - SCOPUS:85118565167
SN - 0272-8842
VL - 48
SP - 3564
EP - 3577
JO - Ceramics International
JF - Ceramics International
IS - 3
ER -