Bi2O2CO3 Nanosheet Composites with Bi-Based Metal–Organic Frameworks for Photocatalytic H2O2 Production
Source abstract
Abstract
Heterojunction integration of inorganic semiconductors with metal–organic frameworks (MOFs) is verified to be a rational strategy to achieve efficient charge separation and to enhance photocatalytic performance. In this work, Bi 2 O 2 CO 3 /Bi-MOF heterostructures were fabricated by an in situ surface trimesic acid (H 3 BTC) etching method. First, Bi 2 O 2 CO 3 nanosheets were prepared by the chemical precipitation method. After adding to H 3 BTC, the rod-shaped Bi-MOF was firmly anchored on Bi 2 O 2 CO 3 nanosheets because of the reaction of Bi 3+ in Bi 2 O 2 CO 3 with H 3 BTC. As a result, Bi 2 O 2 CO 3 /Bi-MOF composites displayed enhanced photocatalytic H 2 O 2 production capacities with 280.5 μmol/g/h under simulated sunlight illumination, which is 11.23 and 6.06 times higher than pure Bi 2 O 2 CO 3 and Bi-MOF, respectively. The excellent H 2 O 2 yield can be attributed to the formation of the in-close contact heterostructure and the internal electric field between Bi 2 O 2 CO 3 and Bi-MOF, which is conducive to inhibiting the recombination of photoinduced electron–hole pairs at the interfaces, thus showing high photocatalytic H 2 O 2 production performance. This work can inspire exploration of the construction of effective inorganic/MOF hybrid heterostructures for photocatalytic H 2 O 2 production.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
Funding
Qufu Normal University · Natural Science Foundation of Shandong Province
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