Effects of ultrasonic irradiation on crystallization and structural properties of EMT-type zeolite nanocrystals

Eng-Poh Ng; Hussein Awala; Jia-Pei Ghoy; Aurélie Vicente; Tau Chuan Ling; Yun Hau Ng; Svetlana Mintova; Farook Adam

doi:10.1016/j.matchemphys.2015.03.047

Effects of ultrasonic irradiation on crystallization and structural properties of EMT-type zeolite nanocrystals

Eng-Poh Ng^*
, Hussein Awala
, Jia-Pei Ghoy
, Aurélie Vicente
, Tau Chuan Ling
, Yun Hau Ng
, Svetlana Mintova
, Farook Adam^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

54 Citations (Scopus)

Abstract

Synthesis of EMT zeolite nanocrystals from rice husk ash biomass (RHA) under continuous ultrasonic irradiation is reported. The aging, nucleation and crystallization stages of EMT zeolite in the system were monitored at ambient temperature, and compared with the conventional hydrothermal method. It was found that ultrasonic wave induced rapid crystal growth of the nanosized EMT zeolite. Complete crystallization of EMT nanocrystals was achieved within 24 h which was much faster than conventional hydrothermal synthesis (36 h). Furthermore, XRD and TEM analyses revealed that more nuclei were formed during the nucleation stage, allowing the preparation of smaller zeolite nanocrystals with high crystallinity. The results also showed that sonocrystallization produced EMT zeolite with high yield (ca. 80%). The ultrasound-prepared EMT nanocrystals were also found to have high porosity and high hydrophilicity, making the material promising for water sorption applications including vapor sensing, heat pump and adsorption technologies.

Original language	English
Pages (from-to)	38-45
Journal	Materials Chemistry and Physics
Volume	159
Online published	10 Apr 2015
DOIs	https://doi.org/10.1016/j.matchemphys.2015.03.047
Publication status	Published - 1 Jun 2015
Externally published	Yes

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SDG 7 Affordable and Clean Energy

Research Keywords

Crystal growth
Crystallization
Microporous materials
Ultrasonic techniques

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10.1016/j.matchemphys.2015.03.047

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@article{55dc604e35ae475695236f316f42323c,

title = "Effects of ultrasonic irradiation on crystallization and structural properties of EMT-type zeolite nanocrystals",

abstract = "Synthesis of EMT zeolite nanocrystals from rice husk ash biomass (RHA) under continuous ultrasonic irradiation is reported. The aging, nucleation and crystallization stages of EMT zeolite in the system were monitored at ambient temperature, and compared with the conventional hydrothermal method. It was found that ultrasonic wave induced rapid crystal growth of the nanosized EMT zeolite. Complete crystallization of EMT nanocrystals was achieved within 24 h which was much faster than conventional hydrothermal synthesis (36 h). Furthermore, XRD and TEM analyses revealed that more nuclei were formed during the nucleation stage, allowing the preparation of smaller zeolite nanocrystals with high crystallinity. The results also showed that sonocrystallization produced EMT zeolite with high yield (ca. 80\%). The ultrasound-prepared EMT nanocrystals were also found to have high porosity and high hydrophilicity, making the material promising for water sorption applications including vapor sensing, heat pump and adsorption technologies.",

keywords = "Crystal growth, Crystallization, Microporous materials, Ultrasonic techniques",

author = "Eng-Poh Ng and Hussein Awala and Jia-Pei Ghoy and Aur{\'e}lie Vicente and Ling, \{Tau Chuan\} and Ng, \{Yun Hau\} and Svetlana Mintova and Farook Adam",

year = "2015",

month = jun,

day = "1",

doi = "10.1016/j.matchemphys.2015.03.047",

language = "English",

volume = "159",

pages = "38--45",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Effects of ultrasonic irradiation on crystallization and structural properties of EMT-type zeolite nanocrystals

AU - Ng, Eng-Poh

AU - Awala, Hussein

AU - Ghoy, Jia-Pei

AU - Vicente, Aurélie

AU - Ling, Tau Chuan

AU - Ng, Yun Hau

AU - Mintova, Svetlana

AU - Adam, Farook

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Synthesis of EMT zeolite nanocrystals from rice husk ash biomass (RHA) under continuous ultrasonic irradiation is reported. The aging, nucleation and crystallization stages of EMT zeolite in the system were monitored at ambient temperature, and compared with the conventional hydrothermal method. It was found that ultrasonic wave induced rapid crystal growth of the nanosized EMT zeolite. Complete crystallization of EMT nanocrystals was achieved within 24 h which was much faster than conventional hydrothermal synthesis (36 h). Furthermore, XRD and TEM analyses revealed that more nuclei were formed during the nucleation stage, allowing the preparation of smaller zeolite nanocrystals with high crystallinity. The results also showed that sonocrystallization produced EMT zeolite with high yield (ca. 80%). The ultrasound-prepared EMT nanocrystals were also found to have high porosity and high hydrophilicity, making the material promising for water sorption applications including vapor sensing, heat pump and adsorption technologies.

AB - Synthesis of EMT zeolite nanocrystals from rice husk ash biomass (RHA) under continuous ultrasonic irradiation is reported. The aging, nucleation and crystallization stages of EMT zeolite in the system were monitored at ambient temperature, and compared with the conventional hydrothermal method. It was found that ultrasonic wave induced rapid crystal growth of the nanosized EMT zeolite. Complete crystallization of EMT nanocrystals was achieved within 24 h which was much faster than conventional hydrothermal synthesis (36 h). Furthermore, XRD and TEM analyses revealed that more nuclei were formed during the nucleation stage, allowing the preparation of smaller zeolite nanocrystals with high crystallinity. The results also showed that sonocrystallization produced EMT zeolite with high yield (ca. 80%). The ultrasound-prepared EMT nanocrystals were also found to have high porosity and high hydrophilicity, making the material promising for water sorption applications including vapor sensing, heat pump and adsorption technologies.

KW - Crystal growth

KW - Crystallization

KW - Microporous materials

KW - Ultrasonic techniques

UR - https://www.scopus.com/pages/publications/84929281245

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84929281245&origin=recordpage

U2 - 10.1016/j.matchemphys.2015.03.047

DO - 10.1016/j.matchemphys.2015.03.047

M3 - RGC 21 - Publication in refereed journal

SN - 0254-0584

VL - 159

SP - 38

EP - 45

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -

Effects of ultrasonic irradiation on crystallization and structural properties of EMT-type zeolite nanocrystals

Abstract

UN SDGs

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