Preparation and characterization of titania supported on layered double hydroxide precipitated on glass fiber cloth

Machida, Shingo; Hasegawa, Kaishi; Katsumata, Kenji; Yasumori, Atsuo

doi:10.1016/j.clay.2023.106935

Cited by 2 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formation of hexagonal platy particles in Cl-, NO 3 -, and Lactate-LDH-CC are consistent with those reported previously. [15][16][17] Notably, the white precipitation was observed at the bottom of Teflon vessels after the reactions. In addition, in our previous study, the magnesium carbonate was precipitated after the precipitation of MgAl-LDH using chlorides as raw materials in the presence of glass-fiber cloth at 150 • C for 6 h. 16,17 Figure 2 shows XRD patterns for the specimens.…”

Section: Resultsmentioning

confidence: 99%

“…The conditions for depositing MgAl-LDH were according to the previous studies. [15][16][17] CC was cut into 2 cm squares and immersed vertically in an aqueous solution containing 4, 1, and 10 mmol/L of magnesium salts, aluminum salts, and urea, respectively (one CC/8 mL). Previous studies have used this starting solution with chlorides to obtain hexagonal platy particles of a carbonate-type MgAl-LDH with relatively narrow size distributions.…”

Section: Sample Preparationmentioning

confidence: 99%

“…[6][7][8][9][10] Herein, we devoted special attention to the deposition of layered double hydroxide (LDH) 1,11 on non-pretreated carbon cloth (CC) using lactate salts as raw materials. LDH displays various combinations of components, including MgAl [12][13][14][15][16][17] and NiFe, 6 due to the stacked octahedral layers of metal hydroxides. In these layers, a portion of divalent metal cation (M 2+ ) is substituted with trivalent cations (M 3+ ) to generate positive layer charges that are compensated with interlayer exchangeable anions.…”

Section: Introductionmentioning

confidence: 99%

“…In these layers, a portion of divalent metal cation (M 2+ ) is substituted with trivalent cations (M 3+ ) to generate positive layer charges that are compensated with interlayer exchangeable anions. The general formula is 11 When LDHs are synthesized in the presence of substrates using homogeneous precipitation using urea hydrolysis, 11,16,17 hexagonal platy particles of LDH are deposited and vertically aligned on substrate surfaces. In our previous reports, hexagonal platy particles of MgAl-LDH were successfully deposited on glass beads or-fibers under hydrothermal conditions using magnesium and aluminum chlorides as raw materials.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous reports, hexagonal platy particles of MgAl-LDH were successfully deposited on glass beads or-fibers under hydrothermal conditions using magnesium and aluminum chlorides as raw materials. 16,17 This synthetic condition is suitable for comparing the deposition of MgAl-LDH on CC using lactates with that using chlorides or nitrides, which are commonly employed as raw materials for LDH precipitation. In this study, while MgAl-LDH platy particles were not deposited on untreated CC using chlorides and nitrates as raw materials, they were successfully deposited and coated on pristine CC when lactates were used as raw materials.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Deposition of layered double hydroxide on non‐pretreated carbon cloth using lactate salts as raw materials

Machida,

Hasegawa,

Katsumata

et al. 2023

Int J Ceramic Engine & Sci

Self Cite

View full text Add to dashboard Cite

This study presented the successful deposition of layered double hydroxide (LDH) onto non‐pretreated carbon cloth (CC) using lactate salts as raw materials. Specifically, under the hydrothermal condition using urea hydrolysis and lactate salts as the source of Mg and Al, MgAl‐LDH was deposited onto the CC surface, which is typically treated with organic solvents and acids to enhance its hydrophilicity prior to LDH deposition. X‐ray diffraction patterns, field‐emission electron microscope images, and elemental analyses revealed the deposition and coating of hexagonal platy particles of a carbonate‐type MgAl‐LDH with pseudo hexagonal phase and Mg/Al molar ratio of 1 onto CC. This LDH coating was not achieved when using chlorides and nitrates, which commonly used Mg and Al sources. These results demonstrated the effectiveness of the proposed method for facile LDH deposition on hydrophobic surfaces.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Sample Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Deposition of layered double hydroxide on non‐pretreated carbon cloth using lactate salts as raw materials

Machida,

Hasegawa,

Katsumata

et al. 2023

Int J Ceramic Engine & Sci

Self Cite

View full text Add to dashboard Cite

show abstract

Preparation of anion‐uptake powder compact containing layered double oxide and metakaolinite

Machida

2024

Int J Applied Ceramic Tech

Self Cite

View full text Add to dashboard Cite

A powder compact with anion‐uptake ability was prepared prior to the proceeding of the solid‐state reaction involving layered double hydroxide (LDH) and kaolinite during calcination. LDH features anion‐exchangeable capability, and kaolinite is used as a raw potty material because of the sintering property. In the present study, the solid‐state reaction of LDH with kaolinite did not proceed at 750°C, resulting in the formation of a mixture of layered double oxide (LDO) and metakaolinite. Unlike LDO, which typically undergoes anion‐uptake accompanied by LDH reconstruction, metakaolinite does not revert to kaolinite without the use of hydrothermal conditions. In addition, the powder compact composed of LDO crumbled, whereas the one containing a mixture of LDO and metakaolinite remained intact. When the powder compact of LDO and metakaolinite mixture was immersed in a methyl orange (MO) aqueous solution, an LDH–MO intercalation compound was generated within the compact. By contrast, no such compound was generated when LDO powder was immersed in an MO aqueous solution. These results indicated that the successful preparation of a powder compact with distinct anion‐uptake ability was different from powder, owing to that the solid‐state reaction of LDO with metakaolinite did not proceed at 750°C.

show abstract

Preparation and characterization of titania supported on layered double hydroxide precipitated on glass fiber cloth

Cited by 2 publications

References 22 publications

Deposition of layered double hydroxide on non‐pretreated carbon cloth using lactate salts as raw materials

Deposition of layered double hydroxide on non‐pretreated carbon cloth using lactate salts as raw materials

Preparation of anion‐uptake powder compact containing layered double oxide and metakaolinite

Contact Info

Product

Resources

About