Highly efficient photocatalytic degradation of hazardous organic and inorganic contaminants by heterogeneous nZVI-doped Al2ZnTiO6 double perovskite/g-C3N4 photocatalyst under visible light irradiation
Source abstract
Abstract
Among the hazardous organic and inorganic pollutants, organic dyes, nitrate (NO 3 - ), carbon dioxide (CO 2 ), and toxic heavy metals (THMs) are four types of hazardous contaminants that have become a serious global problem. Recently, perovskite photocatalysts have shown high efficiency in removing water and air contaminants. In this research, zero-valent iron nanoparticles (nZVI)- doped Al 2ZnTiO 6 (AZTO) double perovskite/graphitic carbon nitride (g-C 3N 4 (gCN)) nanocomposite (NC) was firstly synthesized by the sol-gel method as a new high-efficiency perovskite photocatalyst. Also, the influence of the main factors such as solution pH, reaction time, photocatalyst dosage, and contaminants concentration on the photocatalytic performance of the nZVI-doped Al 2ZnTiO 9/g-C 3N 4 nanocomposite was evaluated. Due to the unique features of the nZVI-doped Al 2ZnTiO 6/g-C 3N 4 structure and suitable band gap position, which is suitable for the efficient migration e -/h + charges dissociation and the enhancement of photocatalytic activity, this nanocomposite showed effective performance to the elimination of methyl orange (MO) anion, and methylene blue (MB) cation dye, NO 3 -, CO 2 , and THMs contaminants. The UV–visible spectra showed the elimination efficiency of 88%, 87%, 80%, 72%, and 90% for methyl orange anion dye, methylene blue cation dye, nitrate, carbon dioxide, and toxic heavy metals in optimal experiment conditions, respectively. Also, IEC and GC analysis showed an efficiency of 60% for the photoconversion of nitrate to harmless nitrogen gas (N 2) and 42% for the photoconversion efficiency of CO 2 to Methane (CH 4 ) gas fuel. Eventually, the nZVI-doped Al 2ZnTiO 6/g-C 3N 4 nanocomposite displayed good recyclability and high photocatalytic activity compared to recently synthesized photocatalysts by testing its photocatalytic property after five repetitions.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Present applications of titanium dioxide for the photocatalytic removal of pollutants from water: a review10.1016/j.jenvman.2020.110906 ↗
2. Piezoelectric materials for catalytic/photocatalytic removal of pollutants: recent advances and outlook10.1016/j.apcatb.2018.09.028 ↗
3. Black titanium dioxide nanomaterials for photocatalytic removal of pollutants: a review
4. Graphene-based hollow TiO2 composites with enhanced photocatalytic activity for removal of pollutants10.1016/j.jpcs.2015.06.018 ↗
5. Emerging S‐scheme photocatalyst10.1002/adma.202107668 ↗
6. S-scheme heterojunction photocatalyst10.1016/j.chempr.2020.06.010 ↗
7. Two-dimensional photocatalyst design: a critical review of recent experimental and computational advances10.1016/j.mattod.2019.10.022 ↗
8. Photocatalyst design based on two-dimensional materials10.1016/j.mtchem.2018.11.002 ↗
9. Photocatalytic performance and quick recovery of BiOI/Fe3O4@ graphene oxide ternary photocatalyst for photodegradation of 2, 4-dintirophenol under visible light10.1016/j.mtchem.2018.12.006 ↗
10. Two-dimensional layered nanomaterials for visible-light-driven photocatalytic water splitting10.1016/j.mtener.2018.10.015 ↗
11. Fabrication of high-performance multifunctional Fe-doped La2ZnTiO6 double perovskite/activated carbon nanocomposite for efficient photocatalytic degradation of dyes, nitrate and carbon dioxide pollutants
12. Facile preparation of MgAl2O4/CeO2/Mn3O4 heterojunction photocatalyst and enhanced photocatalytic activity
13. Enhanced photocatalytic hydrogen evolution activity of carbon and nitrogen self-doped TiO2 hollow sphere with the creation of oxygen vacancy and Ti3+10.1016/j.mtener.2018.08.018 ↗
14. Technological trends in heavy metals removal from industrial wastewater: a review10.1016/j.jece.2021.105688 ↗
15. The detoxification of heavy metals from aqueous environment using nano-photocatalysis approach: a review10.1007/s11356-019-04547-x ↗
16. Oxide perovskites, double perovskites and derivatives for electrocatalysis, photocatalysis, and photovoltaics10.1039/C8EE01574K ↗
17. Mitzi · 2019 · 3033
18. Perovskites10.1039/C5DT90083B ↗
19. Perovskites10.1038/scientificamerican0688-74 ↗
20. Ruddlesden–Popper perovskites in electrocatalysis10.1039/D0MH00477D ↗
21. The classification of tilted octahedra in perovskites10.1107/S0567740872007976 ↗
22. Hybrid organic-inorganic perovskites: polar properties and applications10.1016/j.ccr.2019.02.012 ↗
23. Synthesis, properties, and optical applications of low-dimensional perovskites10.1039/C6CC06425F ↗
24. Organic–inorganic perovskites: structural versatility for functional materials design10.1021/acs.chemrev.5b00715 ↗
25. Tilt and acoustic instabilities in ABX4, A2BX6 and ABX3 perovskite structure types: their role in the incommensurate phases of the organic–inorganic perovskites10.1107/S0108768105028879 ↗
26. Bartel, C.J., et al., New tolerance factor to predict the stability of perovskite oxides and halides. Science advances, 2: 2(5)-19 p. eaav0693.10.1126/sciadv.aav0693 ↗
27. Emerging polymeric carbon nitride Z-scheme systems for photocatalysis
28. Unravelling the mechanisms that drive the performance of photocatalytic hydrogen production10.3390/catal10080901 ↗
29. Inorganic perovskite photocatalysts for solar energy utilization10.1039/C5CS00769K ↗
30. Schanze · 2020
31. Nirala, G., D. Yadav, and S. Upadhyay, Ruddlesden-Popper phase A2BO4 oxides: Recent studies on structure, electrical, dielectric, and optical properties. Journal of Advanced Ceramics, 20p. 129–148.10.1007/s40145-020-0365-x ↗
32. Selected perovskite oxides: characterization, preparation and photocatalytic properties—A review10.1016/j.apcatb.2015.12.035 ↗
33. Synthesis and application of perovskite-based photocatalysts in environmental remediation: a review10.1016/j.molliq.2021.116029 ↗
34. Efficacy of perovskite photocatalysis: challenges to overcome10.1021/acsenergylett.2c00765 ↗
35. A review on visible light active perovskite-based photocatalysts10.3390/molecules191219995 ↗
36. Visible-light activated titania perovskite photocatalysts: Characterisation and initial activity studies10.1016/j.catcom.2005.01.006 ↗
37. Perovskite oxide based materials for energy and environment-oriented photocatalysis10.1021/acscatal.0c02947 ↗
38. Luminescence properties of double-perovskite Sr2Ca1−2xEuxNaxMoO6 red-emitting phosphors prepared by the citric acid-assisted sol–gel method10.1007/s10853-009-4123-2 ↗
39. A novel double perovskite La2ZnTiO6: Eu3+ red phosphor for solid-state lighting: synthesis and optimum luminescence10.1016/j.optlastec.2017.04.025 ↗
40. Sol-gel synthesized double perovskite Gd2FeCrO6 nanoparticles: structural, magnetic and optical properties10.1016/j.jallcom.2021.160389 ↗
41. Fe-doping in double perovskite PrBaCo2(1-x)Fe2xO6-δ: insights into structural and electronic effects to enhance oxygen evolution catalyst stability10.3390/catal9030263 ↗
42. Photocatalytic reduction of nitrate over Fe-modified TiO210.1016/j.apcbee.2014.10.060 ↗
43. High-efficient synthesis of graphene oxide based on improved hummers method
44. Mehrabi, N., et al., Parameter optimization for nitrate removal from water using activated carbon and composite of activated carbon and Fe2O3 nanoparticles. RSC advances, 2p. 51470–51482.10.1039/C5RA03920G ↗
45. Chemical removal and selectivity reduction of nitrate from water by (nano) zero-valent iron/activated carbon micro-electrolysis10.1016/j.chemosphere.2020.125986 ↗
46. Challenges in photocatalytic reduction of nitrate as a water treatment technology10.1016/j.scitotenv.2017.04.238 ↗
47. Construction of Zeolite/Fe2ZnTiO6/graphene oxide multifunctional nanocomposite with high efficiency for photocatalytic removal of inorganic pollutants under visible irradiation10.1016/j.jpcs.2022.110997 ↗