Studies on the synthesis of nano-alumina in air and water stable ionic liquids

Farag, Hala K.; Endres, Frank

doi:10.1039/b711704c

Cited by 63 publications

(32 citation statements)

References 30 publications

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“…There is significant progress in the applications of RTILs to synthetic-organic chemistry, catalysis, separation, electrochemistry, biopolymers and molecular self-assemblies [18][19][20][21]. RTILs have recently received a great deal of attention as potential new green media for nanomaterials synthesis [22][23][24][25]. The amalgamation of RTILs with nanotechnology could lead to some major advances in material science [26].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of ZnO nanocrystallines in the presence of an ionic liquid using microwave irradiation and photocatalytic activity

Esmaili

Habibi‐Yangjeh

2010

JICS

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Fast, simple and template-free method is proposed for preparation of ZnO nanocrystallines in the presence of 1-ethyl-3-methylimidazolium ethyl sulfate, [EMIM][EtSO 4 ], a room-temperature ionic liquid (RTIL) under microwave irradiation. The powder X-ray diffraction (XRD) studies display that products are excellently crystallized in the form of wurtzite hexagonal structure. Energy dispersive X-ray spectroscopy (EDX) investigations reveal that the products are extremely pure. The results obtained by scanning electron microscopy (SEM) demonstrate that mean size of ZnO nanocrystallines decreases with microwave irradiation time and the RTIL content of media. Diffuse reflectance spectra (DRS) of the ZnO nanocrystallines shows blue shift relative to the bulk ZnO, which can be attributed to quantum confinement effect of ZnO nanocrystallines. A possible formation mechanism of the ZnO nanocrystallines in aqueous solution of the RTIL is presented. Photocatalytic activity of the ZnO nanocrystallines towards photodegradation of methylene blue (MB) was carried out. The results demonstrate that photocatalytic activity of the ZnO nanocrystallines increases with microwave irradiation time and the RTIL content of media.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of ZnO nanocrystallines in the presence of an ionic liquid using microwave irradiation and photocatalytic activity

Esmaili

Habibi‐Yangjeh

2010

JICS

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“…23,24 RTIL's have recently received a great deal of attention as potential new green media for nanomaterial synthesis. [25][26][27][28] In continuation of our investigations into nanomaterial preparation by using natural gums 29 , the selection of the RTIL's was justifiable by the fact that it can be obtained at a relatively low price and its synthesis method is simple. 30 The aim of this work is to report the green synthesis of zinc oxide nanoparticles via pressure vial method in different RTIL's.…”

Section: Introductionmentioning

confidence: 99%

IONIC LIQUID ASSISTED SYNTHESIS AND CHARACTERISATION OF ZnO NANOPARTICLES

Rao¹,

Vani²,

Rao³

2017

ECB

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A green approach has been developed for the synthesis of nanocrystalline zinc oxide (ZnO) with the aid of room-temperature synthesized ionic liquids (RTIL's) as crystal growth modifiers by low-temperature precipitation technique. The role of RTIL's (propylammonium acetate (PAA), propylammonium formate (PAF), 3-hydroxy propylammonium acetate (3-HPAA), 3-hydroxy propylammonium formate (3HPAF) and their concentration effect on the particle size is studied in this protocol. The formed nanoparticles are charact erized by XRD, TEM, FT-IR and UV-DRS. XRD spectra of nanoparticles exhibit typical diffraction peaks of hexagonal phase with wurtzite ZnO structure corresponding to JCPDS 36-1451. TEM results revealed that spherical nanoparticles obtained with an average particle size in the range of 5-20 nm. UV-Vis-DRS spectra of the ZnO nanoparticles shows blue shift compared to the bulk ZnO, attributed to quantum confinement effect. * Corresponding Authors[a]

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“…RTILs have attracted increasing attention as the green, high-tech reaction media of the future [20] and they have recently received a great deal of attention as potential new media for nanomaterials preparation [21][22][23][24]. One of the largest barriers to application of RTILs in various fields arises from their high-cost relative to conventional solvents.…”

Section: Introductionmentioning

confidence: 99%