journal article·2020-03

Tuning the bandgap of m-ZrO2 by incorporation of copper nanoparticles into visible region for the treatment of organic pollutants

Harish Singh, Sunaina, Krishna Kumar Yadav, Vaibhav Kumar Bajpai, Menaka Jha

Publisher page

Abstract

Abstract In the present study, a low-temperature process for the stabilization of Cu-ZrO2 nanocomposite has been designed. The synthesis of m-ZrO2 has been done via hydrothermal route followed by decoration of copper onto m-ZrO2 surface by chemical reduction of copper salt in ethylene glycol. The optical study of the Cu-ZrO2 nanocomposites shows that, as the concentration of copper increases, the bandgap of the nanocomposite decreases. Among the series of synthesized nanocomposites of Cu-ZrO2, the nanocomposite having 1:4 molar ratio of Cu: ZrO2 shows the excellent photo-degradation efficacy (degradation efficiency ∼94 %) in the visible light because of efficient charge separation as confirmed by spectroscopic techniques as well as kelvin probe force microscopic studies.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · TiO2 Photocatalysis and Solar Cells

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

References (55)

Show source-provided references
1. Effect of Ce on piezo/photocatalytic effects of Ba0.9Ca0.1CexTi1-xO3 ceramics for dye/pharmaceutical waste water treatment10.1016/j.materresbull.2019.110647 ↗
2. Role of Ag2S coupling on enhancing the visible-light-induced catalytic property of TiO2 nanorod arrays10.1038/srep19754 ↗
3. Highly efficient visible-light-driven photocatalytic hydrogen production of CdS-cluster-decorated graphene nanosheets10.1021/ja2025454 ↗
4. Facile synthesis of Z-scheme graphitic-C3N4/Bi2MoO6 nanocomposite for enhanced visible photocatalytic properties10.1016/j.apsusc.2015.06.183 ↗
5. Enhanced visible light photocatalytic performance of g-C3N4 photocatalysts co-doped with iron and phosphorus10.1016/j.apsusc.2014.05.036 ↗
6. Is graphene a stable platform for photocatalysis? Mineralization of reduced graphene oxide with UV-irradiated TiO2 nanoparticles10.1021/cm5026552 ↗
7. Photocatalysis with CdSe nanoparticles in confined media: mapping charge transfer events in the subpicosecond to second timescales10.1021/nn800848y ↗
8. Synthesis and characterization of pure tetragonal ZrO2 nanoparticles with enhanced photocatalytic activity10.1016/j.ceramint.2018.01.123 ↗
9. Enhanced photocatalytic activity and mechanism of Ti3C2−OH/Bi2WO6:Yb3+, Tm3+ towards degradation of RhB under visible and near infrared light irradiation10.1016/j.materresbull.2019.110618 ↗
10. Influence of acidic pH on the formulation of TiO2 nanocrystalline powders with enhanced photoluminescence property10.1016/j.heliyon.2017.e00246 ↗
11. Stability of ZnO nanoparticles in solution. Influence of pH, dissolution, aggregation and disaggregation effects strategies towards the new sustainability paradigm: managing the great transition to sustainable global democracy view project soil and munici
12. V2O5/ZrO2 as an efficient reusable catalyst for the facile, green, one-pot synthesis of novel functionalized 1,4-dihydropyridine derivatives10.1016/j.cattod.2017.05.038 ↗
13. Novel composite BiFeO3/ZrO2 and its high photocatalytic performance under white LED visible-light irradiation10.1016/j.materresbull.2019.110605 ↗
14. Cobalt doped ZrO2 decorated multiwalled carbon nanotube: a promising nanocatalyst for photodegradation of indigo carmine and eosin Y dyes10.1016/j.pnsc.2016.06.007 ↗
15. Photocatalytic properties of ZrO2 and Fe/ZrO2 semiconductors prepared by a sol-gel technique10.1016/S1010-6030(99)00150-1 ↗
16. Hollow microspheres Mg-doped ZrO2 nanoparticles: green assisted synthesis and applications in photocatalysis and photoluminescence10.1016/j.jallcom.2016.02.124 ↗
17. Insights into the sunlight-driven water oxidation by Ce and Er-Doped ZrO210.3389/fchem.2018.00368 ↗
18. Low temperature synthesis process of stabilization of cubic yttria stabilized zirconia spindles: an important high temperature ceramic material10.1088/2053-1591/aa9231 ↗
19. Is nano ZrO2 a better photocatalyst than nano TiO2 for degradation of plastics?10.1039/C7RA08324F ↗
20. Synthesis of thermally stable, high surface area, nanocrystalline mesoporous tetragonal zirconium dioxide (ZrO2): effects of different process parameters10.1016/j.micromeso.2011.07.012 ↗
21. Structural, electronic, and optical properties of ZrO2 from ab initio calculations10.1063/1.2386967 ↗
22. Identification of tetragonal and cubic structures of zirconia using synchrotron x-radiation source10.1557/JMR.1991.1287 ↗
23. First-principles study of the surfaces of zirconia10.1103/PhysRevB.58.8050 ↗
24. A mechanistic study of nitrous oxide adsorption and decomposition on zirconia10.1023/A:1019058232683 ↗
25. Infrared spectra of surface hydroxyl groups and crystalline structure of oxides10.1016/0022-2860(73)85136-1 ↗
26. Surface properties and CO adsorption on zirconia polymorphs10.1016/j.molcata.2004.10.017 ↗
27. Formation and reactivity of zirconium(3+) centers at the surface of vacuum-activated monoclinic zirconia10.1021/j100370a067 ↗
28. In situ FTIR studies of high-temperature adsorption of hydrogen on zirconia10.1039/ft9959104441 ↗
29. Influence of zirconia crystal phase on the catalytic performance of Au/ZrO2 catalysts for low-temperature water gas shift reaction10.1016/j.apcata.2007.10.020 ↗
30. Influence of the crystalline structure of ZrO2 on the activity of Cu/ZrO2 catalysts on the water gas shift reaction10.1016/j.catcom.2008.07.011 ↗
31. Single-stage medium temperature water-gas shift reaction over Pt/ZrO2 – support structural polymorphism and catalyst deactivation10.1016/j.apcatb.2012.01.028 ↗
32. Influence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange10.1186/s11671-015-0780-z ↗
33. Synthesis and characterization of monoclinic phase of zirconia10.1007/s41779-016-0005-7 ↗
34. Synthesis and optical properties of pure monoclinic zirconia nanosheets by a new precursor10.1016/j.ceramint.2014.01.052 ↗
35. Synthesis of monoclinic and cubic ZrO2 nanoparticles from Zircon10.1111/j.1551-2916.2010.04277.x ↗
36. Synthesis and dielectric studies of monoclinic nanosized zirconia10.1155/2014/828492 ↗
37. Synthesis of pure monoclinic zirconia nanoparticles using ultrasound cavitation technique, Iran
38. Synthesis of 6-nm ultrafine monoclinic zirconia10.1111/j.1151-2916.1984.tb19664.x ↗
39. One-pot synthesis of monoclinic ZrO2 nanocrystals under subcritical hydrothermal conditions10.1016/j.supflu.2013.11.001 ↗
40. Monoclinic zirconium oxide nanostructures synthesized by a hydrothermal route10.1088/0957-4484/19/19/195602 ↗
41. ZrO2 and Cu/ZrO2 sol-gel materials spectroscopic characterization10.1007/s10971-005-6706-y ↗
42. Structure-activity relationships of Cu-ZrO2 catalysts for CO2 hydrogenation to methanol: interaction effects and reaction mechanism10.1039/C6RA28305E ↗
43. Nanostructured copper-zirconia composites as catalysts for methanol decomposition10.1016/j.apcatb.2014.10.058 ↗
44. Structure and performance of Cu/ZrO2 catalyst for the synthesis of methanol from CO2 hydrogenation10.1016/S1872-5813(10)60041-2 ↗
45. Synthesis and characterization of Cu–ZrO2 nanocomposite produced by thermochemical process10.1016/j.jallcom.2017.05.209 ↗
46. Mechanisms of nucleation and growth of nanoparticles in solution10.1021/cr400544s ↗
47. Substrate-free copper nanoclusters exhibit super diamagnetism and surface based soft ferromagnetism10.1039/C7NR07136A ↗
48. Nanostructured silver decorated hollow silica and their application in the treatment of microbial contaminated water at room temperature10.1039/C9NJ01049A ↗
49. Genesis and structure of WOx /ZrO2 solid acid catalysts10.1021/la971399g ↗
50. Preparation, characterization and enhanced visible light photocatalytic activities of polyaniline/Bi3NbO7 nanocomposites10.1016/j.jallcom.2012.01.021 ↗
51. Highly efficient Bi2O2CO3/BiOCl photocatalyst based on heterojunction with enhanced dye-sensitization under visible light10.1016/j.apcatb.2016.01.045 ↗
52. Photoluminescence: a very sensitive tool to detect the presence of anatase in rutile phase electrospun TiO2 nanofibers10.1016/j.spmi.2014.10.034 ↗
53. New approach for the transformation of metallic waste into nanostructured Fe3O4 and SnO2-Fe3O4 heterostructure and their application in treatment of organic pollutant10.1016/j.wasman.2019.03.007 ↗
54. Work function-tailored graphene via transition metal encapsulation as a highly active and durable catalyst for the oxygen reduction reaction10.1039/C9EE00381A ↗
55. Work function based catalytic activity of metallic nanoparticles for dye degradation10.1007/s10562-019-02744-4 ↗