TY - JOUR
T1 - Ultrafast photocatalytic degradation of nitenpyram by 2D ultrathin Bi2WO6
T2 - mechanism, pathways and environmental factors
AU - Cheng, Yuan-Hao
AU - Chen, Juan
AU - Che, Hui-Nan
AU - Ao, Yan-Hui
AU - Liu, Bin
PY - 2022/7
Y1 - 2022/7
N2 - As a common insecticide, nitenpyram (NTP) seriously threatens the human health and environmental safety. In this work, a visible-light-responsive photocatalyst two-dimensional (2D) Bi2WO6 was synthesized and applied to degrade NTP. Compared with bulk Bi2WO6, the 2D Bi2WO6 exhibits better photocatalytic performance for NTP degradation under visible-light irradiation. The enhanced activity can be ascribed to the unique 2D structure which would induce to higher efficiency of carrier separation. Moreover, hole (h+) plays a major role (and ·O2−) in the degradation of NTP. Based on the intermediates detected by high-performance liquid chromatography–mass spectrometry (HPLC–MS), the degradation pathway of NTP was proposed. In addition, the influence of typical environmental factors (pH, water matrix, inorganic cations and common anions) on the degradation of NTP was also investigated. This work not only helps people to understand the degradation of pesticides in actual water bodies, but also provides reference for the subsequent treatment of agricultural wastewater. © 2022, Youke Publishing Co., Ltd.
AB - As a common insecticide, nitenpyram (NTP) seriously threatens the human health and environmental safety. In this work, a visible-light-responsive photocatalyst two-dimensional (2D) Bi2WO6 was synthesized and applied to degrade NTP. Compared with bulk Bi2WO6, the 2D Bi2WO6 exhibits better photocatalytic performance for NTP degradation under visible-light irradiation. The enhanced activity can be ascribed to the unique 2D structure which would induce to higher efficiency of carrier separation. Moreover, hole (h+) plays a major role (and ·O2−) in the degradation of NTP. Based on the intermediates detected by high-performance liquid chromatography–mass spectrometry (HPLC–MS), the degradation pathway of NTP was proposed. In addition, the influence of typical environmental factors (pH, water matrix, inorganic cations and common anions) on the degradation of NTP was also investigated. This work not only helps people to understand the degradation of pesticides in actual water bodies, but also provides reference for the subsequent treatment of agricultural wastewater. © 2022, Youke Publishing Co., Ltd.
KW - Degradation pathway
KW - Nitenpyram
KW - Photocatalysis
KW - Two-dimensional (2D) Bi2WO6
UR - http://www.scopus.com/inward/record.url?scp=85128251728&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85128251728&origin=recordpage
U2 - 10.1007/s12598-022-01984-5
DO - 10.1007/s12598-022-01984-5
M3 - RGC 21 - Publication in refereed journal
SN - 1001-0521
VL - 41
SP - 2439
EP - 2452
JO - Rare Metals
JF - Rare Metals
IS - 7
ER -
