Ag2CO3 phases in nanocomposites with palygorskite and their effects on photocatalytic and antibacterial activities
Source abstract
Abstract
Various nanocomposites based on Ag 2CO 3 loaded onto natural fibrous palygorskite (Pal) were elaborated by a simple precipitation route. Their composition ranged from metastable hexagonal β-Ag 2CO 3 nanoparticles immobilized on the surface of Pal microfibers to a mixture with stable monoclinic m-Ag 2CO 3 particles trapped in the tangle of Pal fibers. The choice of elaboration parameters enables to control the relative content of each phases phase ratio “metastable β-hexagonal / (stable monoclinic + metastable β-hexagonal)” of Ag 2CO 3 and thus to tune the resulting multifunctional properties (mainly photocatalytic and biocidal activities) of the nanocomposites. Optical studies interestingly revealed, for all Ag 2CO 3-Pal nanocomposites, a noticeable absorption in the visible light range. Accordingly, all the Ag 2CO 3 based Pal nanocomposites were found to be photoactive under visible light for the removal of Orange G (OG) dye but biphasic (β + m)-Ag 2CO 3-Pal nanocomposite was more photoactive than those in which Ag 2CO 3 was monophasic (either β-hexagonal or monoclinic phases). This could be due to synergy effects between the two Ag 2CO 3 phases. Besides, all the developed Pal based nanocomposites remained active upon several reusability cycling tests. Likewise, both the nanocomposites materials and the starting Pal clay mineral were found antibacterial against gram-positive ( Staphylococcus aureus) and gram-negative ( Escherichia coli) bacteria.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Pigment Synthesis and Properties · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (65)
Show source-provided references
1. Recent progress in metal-doped TiO2, non-metal doped/codoped TiO2 and TiO2 nanostructured hybrids for enhanced photocatalysis
2. Cu2S/TiO2 heterojunction applied to visible light Orange II degradation10.1016/j.jphotochem.2012.08.013 ↗
3. Facet effect of single-crystalline Ag3PO4 sub-microcrystals on photocatalytic properties10.1021/ja2002132 ↗
4. Photocatalytic treatment of dye wastewater and parametric study using a novel Z-scheme Ag2CO3/SiC photocatalyst under natural sunlight10.1016/j.jece.2017.10.037 ↗
5. Synthesis, characterization and photocatalytic activity of TiO2 supported natural palygorskite microfibers10.1016/j.clay.2011.03.009 ↗
6. Physicochemical study of photocatalytic activity of TiO2 supported palygorskite clay mineral10.1155/2013/815473 ↗
7. Photocatalytic activity of TiO2/stevensite nanocomposites for the removal of Orange G from aqueous solutions10.1180/claymin.2014.049.3.05 ↗
8. Development of polyaniline coated titania-hematite composite with enhanced photocatalytic activity under sun-like irradiation
9. Photoelectrolysis and physical properties of the semiconducting electrode WO210.1063/1.323948 ↗
10. A novel high-efficiency visible-light sensitive Ag2CO3 photocatalyst with universal photodegradation performances: simple synthesis, reaction mechanism and first-principles study10.1016/j.apcatb.2012.12.041 ↗
11. Chemical composition, antimicrobial activities and synergistic effects of essential oil from Senecio anteuphorbium, a Moroccan endemic plant10.1016/j.indcrop.2018.12.097 ↗
12. Efficient decomposition of organic compounds with FeTiO3/TiO2 heterojunction under visible light irradiation10.1016/j.apcatb.2008.02.017 ↗
13. Green fabrication of Ag/AgCl@TiO2 superior plasmonic nanocomposite: biosynthesis, characterization and photocatalytic activity under sunlight10.1016/j.jallcom.2020.155593 ↗
14. Synthesis, characterization and properties of sulfate-modified silver carbonate with enhanced visible light photocatalytic performance10.1039/D3RA03120A ↗
15. Structure, morphology and photocatalytic activity of attapulgite/Ag3PO4 hybrids synthesized by a facile chemical precipitation route10.1007/s10854-015-3058-4 ↗
16. Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants10.1016/S0920-5861(99)00107-8 ↗
17. Enhanced photocatalytic hydrogen evolution under visible-light using C, N co-doped mesoporous TiO2 nanocrystals templated by ionic liquids10.1016/j.cej.2022.138670 ↗
18. Hydrothermal fabrication of spindle-shaped ZnO/palygorskite nanocomposites using nonionic surfactant for enhancement of antibacterial activity10.3390/nano9101453 ↗
19. Synthesis and characterization of ZnO/palygorskite10.1016/j.clay.2010.08.028 ↗
20. SnO2/TiO2 nanotube heterojunction: the first investigation of NO degradation by visible light-driven photocatalysis10.1016/j.chemosphere.2018.10.033 ↗
21. Preparation of silver carbonate and its application as visible light-driven photocatalyst without sacrificial reagent10.1111/php.12495 ↗
22. Photocatalytic H2 evolution over TiO2 nanoparticles. The synergistic effect of anatase and rutile10.1021/jp910810r ↗
23. Influence of the crystal structure of Ag2CO3 on the photocatalytic activity under visible light of Ag2CO3-Palygorskite nanocomposite material10.1016/j.apsusc.2018.09.053 ↗
24. On the key role of the surface of palygorskite nanofibers in the stabilization of hexagonal metastable β-Ag2CO3 phase in palygorskite-based nanocomposites10.1016/j.clay.2019.02.023 ↗
25. Synergistic effect between anatase and rutile TiO2 nanoparticles in dye-sensitized solar cells
26. Recent progress in highly efficient Ag-based visible-light photocatalysts10.1039/C4RA08044K ↗
27. Ag-based semiconductor photocatalysts in environmental purification10.1016/j.apsusc.2015.07.139 ↗
28. Preparation and photocatalytic activity of silver and TiO2 nanoparticles/montmorillonite composites10.1016/j.clay.2007.01.008 ↗
29. Heteroatom-modulated switching of photocatalytic hydrogen and oxygen evolution preferences of anatase TiO2 microspheres10.1002/adfm.201200414 ↗
30. Antimicrobial and photocatalytic abilities of Ag2CO3 nano-rods10.1002/slct.201700003 ↗
31. Antibacterial activity of aluminum in clay from the Colombian Amazon10.1021/acs.est.6b04670 ↗
32. Size-controlled synthesis of palygorskite/Ag3PO4 nanocomposites with enhanced visible-light photocatalytic performance10.1016/j.clay.2017.04.004 ↗
33. Nanocomposite of attapulgite–Ag3PO4 for Orange II photodegradation10.1016/j.apcatb.2013.06.029 ↗
34. Physicochemical, setting, rheological, and mechanical properties of a novel bio-composite based on apatite cement, bioactive glass, and alginate hydrogel10.1016/j.ceramint.2021.05.106 ↗
35. Synthesis and characterization of magnetic palygorskite nanoparticles and their application on methylene blue remotion from water10.1016/j.apsusc.2015.03.080 ↗
36. Layered silicate magadiite and its composites for pollutants removal and antimicrobial properties: a review10.1016/j.clay.2020.105823 ↗
37. Photocatalytic evaluation of Ag2CO3 for ethylparaben degradation in different water matrices10.3390/w12041180 ↗
38. An overview on the photocatalytic degradation of azo dyes in the presence of TiO2 doped with selective transition metals10.1016/j.desal.2011.03.071 ↗
39. Why five decades of massive research on heterogeneous photocatalysis, especially on TiO2, has not yet driven to water disinfection and detoxification applications? Critical review of drawbacks and challenges10.1016/j.cej.2023.146875 ↗
40. Comprehensive physicochemical study of dioctahedral palygorskite-rich clay from Marrakech High Atlas (Morocco)10.1007/s00269-013-0579-3 ↗
41. Surfactant-modifications of Na+−beidellite for the preparation of TiO2-Bd supported photocatalysts: I-organobeidellite precursor for nanocomposites10.1016/j.clay.2015.04.024 ↗
42. Surfactant-modifications of Na+−beidellite for the preparation of TiO2–Bd supported photocatalysts: II—Physico-chemical characterization and photocatalytic properties10.1016/j.clay.2015.04.025 ↗
43. Semiconductor photocatalysis: an environmentally acceptable alternative production technique and effluent treatment process10.1016/S0959-6526(96)00044-3 ↗
44. Antimicrobial efficacy of building material based on ZnO/palygorskite against Gram-negative and Gram-positive bacteria10.1016/j.clay.2020.105499 ↗
45. Chemical vapor deposition and characterization of nitrogen doped TiO2 thin films on glass substrates10.1016/j.tsf.2009.04.070 ↗
46. N,S-Co-doped TiO2 nanophotocatalyst: synthesis, electronic structure and photocatalysis10.1166/jnn.2009.J095 ↗
47. Enhanced photocatalytic activity of Ag3PO4 photocatalyst via glucose-based carbonsphere modification10.1016/j.cej.2016.10.035 ↗
48. Chemical composition, antimicrobial activity and synergistic potential of essential oil from endemic Lavandula maroccana (Mill.)10.1016/j.sajb.2019.07.030 ↗
49. Green synthesis of silver nanoparticles: a review10.4236/gsc.2016.61004 ↗
50. FTIR spectroscopic study of palygorskite: influence of the composition of the octahedral sheet10.1016/j.clay.2005.10.005 ↗
51. Facile preparation of visible-light-responsive kaolin-supported Ag@AgBr composites and their enhanced photocatalytic properties10.1016/j.clay.2019.04.003 ↗
52. Clays for efficient disinfection of bacteria in water10.1016/j.clay.2017.10.005 ↗
53. Hollow spherical WO3/TiO2 heterojunction for enhancing photocatalytic performance in visible-light10.1016/j.jwpe.2021.101943 ↗
54. Preparation, characterization, and photocatalytic properties of silver carbonate10.1016/j.apsusc.2011.05.060 ↗
55. Synthesis of porous and visible-light absorbing Bi2WO6/TiO2 heterojunction films with improved photoelectrochemical and photocatalytic performances10.1021/jp1090137 ↗
56. Preparation and photocatalytic properties of visible light driven AgAgBr/attapulgite nanocomposite10.1016/j.clay.2012.06.013 ↗
57. Fabrication of Ag3PO4-graphene composites with highly efficient and stable visible light photocatalytic performance10.1021/cs3008126 ↗
58. One-step solvothermal synthesis of hierarchically porous nanostructured CdS/TiO2 heterojunction with higher visible light photocatalytic activity10.1016/j.apsusc.2013.06.122 ↗
59. Preparation, characterization, and antibacterial activity of shell waste loaded with silver10.1007/s10853-013-7683-0 ↗
60. An orthophosphate semiconductor with photooxidation properties under visible-light irradiation10.1038/nmat2780 ↗
61. Enhanced hydrophilicity and promoted charge transfer in covalent triazine frameworks/sepiolite complexed via hydrogen bonding for visible-light driven degradation of antibiotics10.1016/j.clay.2023.106921 ↗
62. Ag2CO3@UiO-66-NH2 embedding graphene oxide sheets photocatalytic membrane for enhancing the removal performance of Cr(VI) and dyes based on filtration10.1016/j.desal.2020.114558 ↗
63. Syntheses and applications of silver halide-based photocatalysts
64. Highly efficient heterogeneous photo-fenton-like catalyst of e-Fe2O3/SiO2/attapulgite with rich oxygen vacancies for photocatalytic degradation of organic pollutants
65. Polarization engineering of conjugated microporous polymers to boost exciton dissociation by dielectric constant regulation for photocatalytic degradation of antibiotics10.1016/j.seppur.2023.125776 ↗