Comparative study on different strategies for synthesizing all-silica DD3R zeolite crystals with a uniform morphology and size

Peng, Anna; Lu, Xinqing; Ma, Rui; Fu, Yanghe; Wang, Shuhua; Zhu, Weidong

doi:10.1039/d0ra04293e

Cited by 4 publications

(2 citation statements)

References 63 publications

(67 reference statements)

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“…DD3R crystals were prepared using the methodology outlined by Peng et al 14 , which consists of generating a pristine amorphous solid that accelerates the synthesis of the DD3R zeolite. This amorphous solid was prepared by mixing the reactants 1SiO 2 :4.04 EN:0.47 ADA:112 H 2 O (molar ratio) in deionized water for 3 h. Subsequently, the formed gel was introduced into a stainless-steel autoclave for 48 h at 160 °C.…”

Section: Synthesis Of Dd3r Zeolite Crystalsmentioning

confidence: 99%

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A Low-Cost Dual Layer Deca-Dodecasil 3 Rhombohedral-Alumina Hollow Fiber for CO2/CH4 Separation

Barbosa,

Habert,

Borges

2024

Mat. Res.

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Membrane technology offers solutions for separation of complex gas mixtures. Therefore, new efficient and durable membranes are required to produce gas permeation modules with high area/volume for CO 2 removal from natural gas. This study aims to develop cost-effective zeolite DD3R alumina composite hollow fibers to achieve these process requirements. A porous hollow fiber support from low-cost alumina was prepared via phase inversion followed by thermal treatment. DD3R zeolite seeds were then implanted over the surface of the microporous hollow fibers to form a selective layer by hydrothermal synthesis. The thickness of the selective layer was controlled by the seed concentration, which also affected the crystal intergrowth and competing zeolite phase formation, Sigma-2, which influenced the membrane performance. A reduced-diameter composite DD3R-alumina hollow fiber was obtained with a selectivity of 203 and a CO 2 permeance of 5.4 x 10 -8 mol m −2 s −1 Pa −1 at a pressure of 2 bar.

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Section: Synthesis Of Dd3r Zeolite Crystalsmentioning

confidence: 99%

“…The DD3R zeolite crystals were successfully produced in just 4 days using the methodology of Peng et al 14 , obtaining large octahedral crystals (Figure 4a). The crystals were analyzed by X-ray diffractometry, and the diffractograms are shown in Figure 4b.…”

Section: Synthesis Of Dd3r Zeolite Crystals and Fabrication Of Dd3r-a...mentioning

confidence: 99%

A Low-Cost Dual Layer Deca-Dodecasil 3 Rhombohedral-Alumina Hollow Fiber for CO2/CH4 Separation

Barbosa,

Habert,

Borges

2024

Mat. Res.

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Amine and fluorine co-functionalized MIL-101(Cr) synthesized via a mixed-ligand strategy for CO2 capture under humid conditions

Park

Cha

et al. 2022

Chemical Engineering Journal

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Synthesis and CO2 adsorption performance of high Si/Al ratio DDR zeolites prepared from silica fume

Peng,

Liu,

Gao

et al. 2023

Journal of Environmental Chemical Engineering

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Comparative study on different strategies for synthesizing all-silica DD3R zeolite crystals with a uniform morphology and size

Abstract: A facile protocol was developed to synthesize pure DD3R crystals with a controllable morphology and size, as well as high reproducibility and productivity.

Cited by 4 publications

References 63 publications

A Low-Cost Dual Layer Deca-Dodecasil 3 Rhombohedral-Alumina Hollow Fiber for CO2/CH4 Separation

A Low-Cost Dual Layer Deca-Dodecasil 3 Rhombohedral-Alumina Hollow Fiber for CO2/CH4 Separation

Amine and fluorine co-functionalized MIL-101(Cr) synthesized via a mixed-ligand strategy for CO2 capture under humid conditions

Synthesis and CO2 adsorption performance of high Si/Al ratio DDR zeolites prepared from silica fume

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