An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

Putra, Ageng Trisna Surya Pradana

doi:10.1007/s42452-020-2682-7

Cited by 8 publications

(1 citation statement)

References 54 publications

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“…Similar to MgAl-LDH, thermal treatment on ZnAl-LDH caused the partial collapse in lamellar structure through degassing. Calcination at moderate temperature from 300 °C to 600 °C resulted in divalent metal oxide (ZnO) [ 62 , 63 , 64 ]. Different from MgAl-MMO, however, the ZnAl-MMO tends to have lower specific surface area ( Figure 1 (Ab)).…”

Section: Specific Surface Area Of Mmo Prepared From Calcined Ldhmentioning

confidence: 99%

Mixed Metal Oxide by Calcination of Layered Double Hydroxide: Parameters Affecting Specific Surface Area

Lee

Park

et al. 2021

Nanomaterials

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Mixed metal oxide (MMO) is one of the widely utilized ceramic materials in various industries. In order to obtain high performance, the specific surface area of MMO should be controlled. Calcination of layered double hydroxide (LDH) is a versatile way to prepare MMO with homogeneous metal distribution and well-developed porosity. Although researchers found that the specific surface area of LDH-originated MMO was relatively high, it had not been systematically investigated how the surface area is controlled under a certain parameter. In this review, we summarized LDH-originated MMO with various starting composition, calcination temperature, and pore developing agent in terms of specific surface area and porosity. Briefly, it was represented that MMOs with Mg-Al components generally had higher specific surface area than Mg-Fe or Zn-Al components. Calcination temperature in the range 300–600 °C resulted in the high specific surface area, while upper or lower temperature reduced the values. Pore developing agent did not result in dramatic increase in MMO; however, the pore size distribution became narrower in the presence of pore developing agents.

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Section: Specific Surface Area Of Mmo Prepared From Calcined Ldhmentioning

confidence: 99%

Mixed Metal Oxide by Calcination of Layered Double Hydroxide: Parameters Affecting Specific Surface Area

Lee

Park

et al. 2021

Nanomaterials

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The Role of TiO2 on ZnAl2O4 Spinel Prepared by Direct Coagulation Casting Method: Physico-mechanical, Optical, Structural and Antimicrobial Properties

Sadek,

Reda,

Khattab

et al. 2023

J Inorg Organomet Polym

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This work represents the shaping of alumina–zinc oxide (AZ) samples with the direct coagulation casting method. The effect of zinc oxide (0, 10, 20, 30, and 40 wt%) and the firing temperatures on the phase composition, microstructure, physical properties, and mechanical properties of the AZ samples were studied. The effect of titanium oxide (2, 5, and 7 wt%) and the firing temperatures on the phase composition, microstructure, physical properties, and mechanical properties of the AZ sample with 40 wt% of zinc oxide were studied. Furthermore, the optical properties, magnetic properties, and antimicrobial activity were measured. The results indicate that the increase in zinc oxide enhances the formation of zinc aluminate, which has a gahnite phase. Moreover, increasing the zinc oxide increases the apparent porosity and decreases the grain size and bulk density at various firing temperatures. On the other hand, the addition of 5 wt% titanium oxide increases the bulk density to 3.5 g/cm3 compared to 1.72 g/cm3 with no titania. The apparent porosity and compressive strength reached 5% and 69.2 MPa after 5 wt% TiO2 addition; respectively, compared to 59% and 27.2 MPa with no titania addition. The prepared samples show promising optical band gap of 2.98–3.97 eV, a mixed magnetic behavior, and favorable antibacterial activity against E. coli, S. aureus, B. cereus strains.

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In-situ incorporation of LDH particles during PEO processing of aluminium alloy AA2024

Mojsilović,

Serdechnova,

Blawert

et al. 2024

Applied Surface Science

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An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

Cited by 8 publications

References 54 publications

Mixed Metal Oxide by Calcination of Layered Double Hydroxide: Parameters Affecting Specific Surface Area

Mixed Metal Oxide by Calcination of Layered Double Hydroxide: Parameters Affecting Specific Surface Area

The Role of TiO2 on ZnAl2O4 Spinel Prepared by Direct Coagulation Casting Method: Physico-mechanical, Optical, Structural and Antimicrobial Properties

In-situ incorporation of LDH particles during PEO processing of aluminium alloy AA2024

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