BiOX-loaded biohybrid magnetic microrobots for enhanced photocatalysis under visible light
Source abstract
Abstract
Wastewater remediation towards organic pollutants has attracted increasing interest, and various photocatalysts for decontamination have been explored recently. However, it is still challenging to achieve versatile photocatalytic platforms with superior working efficiency, flexible operation, and good recycling capability. In this work, a novel universal strategy was developed to construct BiOX-loaded biohybrid magnetic microrobots (BiOX BMMs, X=Cl, Br, I) based on Chlorella (Ch.), and their photocatalytic performances on degradation of typical organic pollutants were studied in detail. In this approach, Ch. cells were used as biotemplates, where Fe3O4 and BiOX nanoparticles were deposited in sequence to fabricate various types of BiOX BMMs. Thereon, the BiOBr BMMs exhibited the best photocatalytic performance and were focused for further tests. They could be stimulated to degrade methylene blue and tetracycline hydrochloride under visible light irradiation. Besides, they were capable of flexible propulsion under magnetic actuation, which were also endowed with enhanced photocatalytic efficiency and facile recycling capability. Moreover, scavenger tests were conducted to reveal the corresponding photocatalytic mechanisms. The demonstrated strategy offers a significant paradigm to construct remarkable microrobotic platforms with great potentials in pollutant degradation.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Micro and Nano Robotics · Cerebrospinal fluid and hydrocephalus · Pickering emulsions and particle stabilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
Show source-provided references
1. Emerging contaminants of high concern for the environment: current trends and future research10.1016/j.envres.2021.112609 ↗
2. Recent advances in polymer-based 3D printing for wastewater treatment application: an overview10.1016/j.cej.2021.132311 ↗
3. Photocatalysts for degradation of dyes in industrial effluents: opportunities and challenges10.1007/s12274-019-2287-0 ↗
4. Synthesis and application of CdS nanorods for LED-based photocatalytic degradation of tetracycline antibiotic10.1016/j.chemosphere.2021.132870 ↗
5. Simultaneous removal of organic pollutants and heavy metals in wastewater by photoelectrocatalysis: a review10.1016/j.chemosphere.2020.128503 ↗
6. Recent advances based on the synergetic effect of adsorption for removal of dyes from waste water using photocatalytic process10.1016/j.jes.2017.03.011 ↗
7. Mechanisms underlying the photocatalytic degradation pathway of ciprofloxacin with heterogeneous TiO210.1016/j.cej.2019.122366 ↗
8. Fabrication of multiple heterojunctions with tunable visible-light-active photocatalytic reactivity in BiOBr-BiOl full-range composites based on microstructure modulation and band structures10.1021/am5065409 ↗
9. The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods10.1039/C9TC05010H ↗
10. An overview on limitations of TiO2-based particles for photocatalytic degradation of organic pollutants and the corresponding countermeasures10.1016/j.watres.2015.04.038 ↗
11. A review of bismuth-based photocatalysts for antibiotic degradation: insight into the photocatalytic degradation performance, pathways and relevant mechanisms10.1016/j.envres.2021.111360 ↗
12. BiOX (X = Cl, Br, I) photocatalytic nanomaterials: applications for fuels and environmental management10.1016/j.cis.2018.03.004 ↗
13. Recent progress in magnetic iron oxide-semiconductor composite nanomaterials as promising photocatalysts10.1039/C4NR04244A ↗
14. Review: applications of the functional photocatalysts BiOX (X = Cl, Br, I) for clean energy, the environment, and future photobiorefineries10.1039/D2TA09877F ↗
15. Surface construction of a novel metal-free g-C3N4-based heterojunction photocatalyst for the efficient removal of bio-toxic antibiotic residues10.1016/j.apsusc.2021.151299 ↗
16. Co-doped 3D petal-like ZnIn2S4/GaN heterostructures for efficient removal of chlortetracycline residue from real pharmaceutical wastewater10.1016/j.cej.2022.137355 ↗
17. Self-propelled micro-/nanomotors as "on-the-move" platforms: cleaners, sensors, and reactors
18. Internally/externally bubble-propelled photocatalytic tubular nanomotors for efficient water cleaning10.1021/acsami.7b06402 ↗
19. Dual-mode-driven micromotor based on foam-like carbon nitride and Fe3O4 with improved manipulation and photocatalytic performance10.1021/acsami.2c10590 ↗
20. Light-driven Au-ZnO nanorod motors for enhanced photocatalytic degradation of tetracycline10.1039/D2NR02441A ↗
21. Microrobotic photocatalyst on-the-fly: 1D/2D nanoarchitectonic hybrid-based layered metal thiophosphate magnetic micromachines for enhanced photodegradation of nerve agent10.1016/j.cej.2022.137342 ↗
22. Photocatalysis dramatically influences motion of magnetic microrobots: application to removal of microplastics and dyes10.1016/j.jcis.2023.04.019 ↗
23. Fuel-free synthetic micro-/nanomachines
24. Bubble-assisted three-dimensional ensemble of nanomotors for improved catalytic performance10.1016/j.isci.2019.08.026 ↗
25. Phototactic flocking of photochemical micromotors10.1016/j.isci.2019.07.050 ↗
26. 3D steerable, acoustically powered microswimmers for single-particle manipulation10.1126/sciadv.aax3084 ↗
27. Magnetically Driven Micro and Nanorobots10.1021/acs.chemrev.0c01234 ↗
28. Enhanced removal of toxic heavy metals using swarming biohybrid adsorbents10.1002/adfm.201806340 ↗
29. Micro/nanofabrication, assembly, and actuation based on microorganisms: recent advances and perspectives10.1002/sstr.202200356 ↗
30. Biotemplating of metal-organic framework nanocrystals for applications in small-scale robotics
31. Reconfigurable magnetic microrobot swarm: multimode transformation, locomotion, and manipulation10.1126/scirobotics.aav8006 ↗
32. Efficient removal of Pb(II) from aqueous systems using spirulina-based biohybrid magnetic helical microrobots10.1021/acsami.1c18435 ↗
33. Biohybrid magnetic microrobots for enhanced photocatalytic RhB degradation and E.coli inactivation under visible light irradiation10.1016/j.apsusc.2021.152165 ↗
34. On-the-fly catalytic degradation of organic pollutants using magneto-photoresponsive bacteria-templated microcleaners10.1039/C9TA06290D ↗
35. Smart micro- and nanorobots for water purification10.1038/s44222-023-00025-9 ↗
36. Hybrid magneto-photocatalytic microrobots for sunscreens pollutants decontamination10.1016/j.cej.2022.137139 ↗
37. Magnetic biohybrid microrobot multimers based on chlorella cells for enhanced targeted drug delivery10.1021/acsami.1c16859 ↗
38. Controlled propulsion of wheel-shape flaky microswimmers under rotating magnetic fields10.1063/1.5090297 ↗
39. Bio-inspired magnetic helical microswimmers made of nickel-plated Spirulina with enhanced propulsion velocity10.1016/j.jmmm.2018.08.001 ↗
40. Novel magnetically recoverable BiOBr/iron oxides heterojunction with enhanced visible light-driven photocatalytic activity10.1016/j.apsusc.2014.09.111 ↗
41. Photocatalytic removal of tetrabromobisphenol A by magnetically separable flower-like BiOBr/BiOI/Fe3O4 hybrid nanocomposites under visible-light irradiation10.1016/j.jhazmat.2017.02.030 ↗
42. Construction of porous-hydrangea BiOBr/BiOI n-n heterojunction with enhanced photodegradation of tetracycline hydrochloride under visible light10.1016/j.jallcom.2021.158784 ↗
43. Fabrication of 1D/2D BiPO4/g-C3N4 heterostructured photocatalyst with enhanced photocatalytic efficiency for NO removal10.1016/j.chemosphere.2021.132098 ↗
44. Carbon dots modified bismuth antimonate for broad spectrum photocatalytic degradation of organic pollutants: boosted charge separation, DFT calculations and mechanism unveiling10.1016/j.cej.2021.129460 ↗
45. Visible-NIR light-responsive 0D/2D CQDs/Sb2WO6 nanosheets with enhanced photocatalytic degradation performance of RhB: unveiling the dual roles of CQDs and mechanism study10.1016/j.jhazmat.2021.127595 ↗
46. Efficient photocatalytic CO2 conversion over 2D/2D Ni-doped CsPbBr3/Bi3O4Br Z-scheme heterojunction: critical role of Ni doping, boosted charge separation and mechanism study10.1016/j.apcatb.2022.121895 ↗
47. Novel Z-scheme AgI/Sb2WO6 heterostructure for efficient photocatalytic degradation of organic pollutants under visible light: interfacial electron transfer pathway, DFT calculation and mechanism unveiling10.1016/j.chemosphere.2022.137000 ↗
48. Construction of 3D sheet-packed hierarchical MoS2/BiOBr heterostructures with remarkably enhanced photocatalytic performance for tetracycline and levofloxacin degradation10.1007/s11356-023-26740-9 ↗
49. Construction of a new cascade photogenerated charge transfer system for the efficient removal of bio-toxic levofloxacin and rhodamine B from aqueous solution: mechanism, degradation pathways and intermediates study10.1016/j.envres.2020.109647 ↗