DataVXACS Applied Nano MaterialsPaper
journal article·2024-06-28

In Situ Quantification of H2O2 Generated on Photocatalytic BiVO4 Films by Chemical Micromotors

Shifang Duan, Weilong Lu, Yixin Peng, Yingxu Xie, Ting Kuang, Guan Zhang, Wei Wang

ACS Applied Nano Materials· Volume 7· Issue 12
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Source abstract

Abstract

Silver-coated Janus micromotors that self-propel in H 2 O 2 are used to measure the H 2 O 2 concentration produced on the surface of a photocatalytic BiVO 4 film, because the motor speeds correlate linearly with the H 2 O 2 concentration in the range of 0.5–1 mM. After UV exposure (780 mW/cm 2 for 40 s), a local H 2 O 2 concentration of 0.72 mM on the film surface was inferred from the motor speeds, 75 times higher than the bulk average measured by iodometry. The micromotor sensors also help identify the optimal Pt loading on a BiVO 4 film for highest H 2 O 2 production and regions of high photocatalytic activity on a nonuniform BiVO 4 film.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Micro and Nano Robotics · Characterization and Applications of Magnetic Nanoparticles · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China

School of Nanoscience and Nanotechnology, University of Chinese Academy of Science, Beijing 100049, China

State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

Education Center of Experiments and Innovations, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

Funding

Science and Technology Foundation of Shenzhen City · National Natural Science Foundation of China

References (36)

Show source-provided references
1. 10.1038/nrm224010.1038/nrm2240 ↗
2. 10.1016/j.jece.2022.10789610.1016/j.jece.2022.107896 ↗
3. 10.1002/9780470682531.pat088510.1002/9780470682531.pat0885 ↗
4. 10.1016/j.matt.2022.05.01110.1016/j.matt.2022.05.011 ↗
5. 10.1016/j.jpba.2015.01.01810.1016/j.jpba.2015.01.018 ↗
6. 10.1021/ac00090a02010.1021/ac00090a020 ↗
7. 10.1016/j.talanta.2007.01.07210.1016/j.talanta.2007.01.072 ↗
8. 10.1016/j.nanoen.2022.10790610.1016/j.nanoen.2022.107906 ↗
9. 10.1021/acsami.1c2472710.1021/acsami.1c24727 ↗
10. 10.1002/cssc.20190065610.1002/cssc.201900656 ↗
11. 10.1073/pnas.101839110810.1073/pnas.1018391108 ↗
12. 10.1021/acs.analchem.2c0525810.1021/acs.analchem.2c05258 ↗
13. 10.1038/srep1490810.1038/srep14908 ↗
14. 10.1002/ange.20200432610.1002/ange.202004326 ↗
15. 10.1021/acs.analchem.1c0223310.1021/acs.analchem.1c02233 ↗
16. 10.1002/asia.20190037710.1002/asia.201900377 ↗
17. 10.1016/j.nantod.2013.08.00910.1016/j.nantod.2013.08.009 ↗
18. 10.1021/ja905142q10.1021/ja905142q ↗
19. 10.1021/acs.analchem.8b0186010.1021/acs.analchem.8b01860 ↗
20. 10.1149/2.0051510jss10.1149/2.0051510jss ↗
21. 10.1021/acsami.6b0001210.1021/acsami.6b00012 ↗
22. 10.1007/s40820-023-01095-510.1007/s40820-023-01095-5 ↗
23. 10.1039/D0CC06812H10.1039/D0CC06812H ↗
24. 10.1039/C8SM00832A10.1039/C8SM00832A ↗
25. 10.1021/acscatal.6b0118710.1021/acscatal.6b01187 ↗
26. 10.1002/slct.20160146910.1002/slct.201601469 ↗
27. 10.1103/PhysRevLett.125.23800110.1103/PhysRevLett.125.238001 ↗
28. 10.1021/acs.langmuir.3c0075910.1021/acs.langmuir.3c00759 ↗
29. 10.1021/acs.accounts.8b0024810.1021/acs.accounts.8b00248 ↗
30. 10.1021/nn301312z10.1021/nn301312z ↗
31. 10.1021/ja413002e10.1021/ja413002e ↗
32. 10.1039/D0SM00719F10.1039/D0SM00719F ↗
33. 10.1021/acssensors.3c0125310.1021/acssensors.3c01253 ↗
34. 10.1021/acs.analchem.1c0294710.1021/acs.analchem.1c02947 ↗
35. 10.1021/acssensors.6b0031410.1021/acssensors.6b00314 ↗
36. 10.1002/anie.20220974710.1002/anie.202209747 ↗