Abstract
A novel 1D/2D Bi2O2CO3–BiOI heterojunction photocatalyst with high-quality interfaces was synthesized through a hydrothermal method by using Bi2O2CO3 nanorods and KI as raw materials. Two-dimensional (2D) BiOI nanosheets uniformly and vertically grow on the 1D porous Bi2O2CO3 rods. Bi2O2CO3–BiOI heterojunctions exhibit better photocatalytic activity than pure Bi2O2CO3 nanorods and BiOI nanosheets. Cr(VI) (30 mg/L), MO (20 mg/L) and BPA (20 mg/L) can be completely degraded in 8–15 min. The superior photocatalytic performance of 1D/2D Bi2O2CO3–BiOI heterojunction is ascribed to the synergistic effects: (a) vertical 2D on 1D multidimensional structure; (b) the formation of the Bi2O2CO3–BiOI p–n heterojunction; (c) high-quality interfaces between Bi2O2CO3 and BiOI.
Highlights
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China; Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Ecology and Environment, Anhui Normal University, Wuhu 241002, China; Abstract: A novel 1D/2D Bi2 O2 CO3 –BiOI heterojunction photocatalyst with high-quality interfaces was synthesized through a hydrothermal method by using Bi2 O2 CO3 nanorods and KI as raw materials
1D/2D Bi2 O2 CO3 –BiOI heterojunction was synthesized by hydrothermal method using porous Bi2 O2 CO3 nanorods and KI as raw materials
The photocatalytic performance of Bi2 O2 CO3 –BiOI heterojunction was evaluated by degrading Cr (VI), methyl orange (MO) and bisphenol A (BPA) under solar light irradiation
Summary
1D/2D Bi2 O2 CO3 –BiOI heterojunction was synthesized by hydrothermal method using porous Bi2 O2 CO3 nanorods and KI as raw materials. The absorption band edge of Bi2O2CO3 and BiOI are ~450 and 670 nm (Figure 5a), respectively, indicating the wider band gap of. 2D BiOI nanosheets vertically grew on the 1D Bi2O2CO3 nanorods which can provide almost exposure entire active sites; Secondly, 1D Bi2O2CO3 structures provide quickly charge carriers transfer path along their axis; In addition, the high-quality inter of 12 face between Bi2O2CO3 and BiOI promotes the transfer rate of photo-generated charge carriers at junction interface, enhancing photocatalytic activity. Tions can be formed between (Figure 10b), The internal electric field of Bi2O2CO3–BiOI pn heterojunction promotes the migration rate of photogenerated electrons and holes, which greatly improves the photocatalytic activity.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
