Book ChapterDOI
Hierarchical ZSM-5 Zeolite Nanosurfaces with High Porosity—Structural, Morphological and Textural Investigations
S. K. Jesudoss,J. Judith Vijaya,A. Anancia Grace,L. John Kennedy,Subramanian Sivasanker,P. Kathirgamanathan +5 more
- Vol. 189, pp 109-118
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TLDR
In this article, the authors describe the successful synthesis of hierarchical ZSM-5 zeolite nanosurfaces with high porosity from the rice straw ash (RSA) by means of the hydrothermal method at varying time intervals in the presence of small amount of tetrapropylammonium bromide as a single template.Abstract:
The present paper describes the successful synthesis of hierarchical ZSM-5 zeolite nanosurfaces with high porosity from the rice straw ash (RSA) by means of the hydrothermal method at varying time intervals in the presence of small amount of tetrapropylammonium bromide as a single template. The synthesized samples were characterized by X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), high resolution scanning electron microscopy (HR-SEM), and nitrogen adsorption–desorption analysis (BET). The XRD pattern confirms the formation of pure ZSM‐5 zeolite crystalline phase without any impurity phases. The IR spectrum shows a vibration band at 548 cm−1, which is assigned to the double 5-rings of MFI-type zeolites. The surface area results reveal the formation of additional mesoporosity without destroying the intensive microporosity in a hierarchical ZSM-5 zeolite, which is due to the addition of TPABr during the synthesis. The characterization results conclude that the long time process of hierarchical ZSM-5 zeolite nanosurfaces with high porosity have produced high crystallinity.read more
Citations
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Journal ArticleDOI
Adsorption of Sulfur Dioxide on Clinoptilolite/Nano Iron Oxide and Natural Clinoptilolite
TL;DR: In this article, the authors investigated the efficiency of sulfur dioxide removal by iron oxide nanoparticles deposited on clinoptilolite zeolite and showed that the addition of these iron oxide particles had a positive impact on the surface area and on SO2 capacity.
Journal ArticleDOI
Synthesis and characterization of SnO2-modified ZSM-5 zeolite for hydrogen gas sensing
TL;DR: In this paper, a pure and SnO2 modified ZSM-5 zeolites were successfully prepared using hydrothermal method and the synthesized samples were characterized by XRD, HRTEM, FE-SEM, EDS, XPS, and FT-IR.
Journal ArticleDOI
Poly(vinyl alcohol) electrospun nanofibers containing antimicrobial Rhodomyrtus tomentosa extract
TL;DR: In this article, electron spin nanofibers were prepared from Rhodomyrtus tomentosa extract and poly(vinyl alcohol), and the antimicrobial effect was assessed against two Gram-negative bacterial strains (Escherichia coli and Staphylococcus aureus).
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Lanthanum/Gallium-Modified Zn/ZSM-5 Zeolite for Efficient Isomerization/Aromatization of FCC Light Gasoline
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Synthesis and Characterization of Zeolites Produced by Ultrasonication of Coal Fly Ash/NaOH Slurry Filtrates
TL;DR: In this paper, a study was conducted to determine if crystalline zeolites could be obtained from the filtrates of coal fly ash (CFA)/NaOH slurries through sonication.
References
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Journal ArticleDOI
Synthesis and characterization of zinc oxide nanoparticles: application to textiles as UV-absorbers
TL;DR: In this article, the synthesis and characterization of nanosized zinc oxide particles and their application on cotton and wool fabrics for UV shielding were reported, and the effectiveness of the treatment was assessed through UV-Vis spectrophotometry and the calculation of the ultraviolet protection factor (UPF).
Journal ArticleDOI
Templating mesoporous zeolites
TL;DR: The application of templating methods to produce zeolite materials with hierarchical bi- or trimodal pore size distributions is reviewed with emphasis on mesoporous materials.
Journal ArticleDOI
Hierarchical ZSM‐5 Zeolites in Shape‐Selective Xylene Isomerization: Role of Mesoporosity and Acid Site Speciation
Christian Fernandez,Irina Stan,Jean-Pierre Gilson,Karine Thomas,Aurélie Vicente,Adriana Bonilla,Javier Pérez-Ramírez +6 more
TL;DR: The results show that the interplay between activity, selectivity, and stability in modified zeolites can be optimized by relatively simple post-synthesis treatments, such as base leaching (introduction of mesoporosity) and acid washing (surface acidity modification).
Journal ArticleDOI
Rice straw as a renewable energy source in India, Thailand, and the Philippines: Overall potential and limitations for energy contribution and greenhouse gas mitigation
TL;DR: In this article, the authors assess the quantity of rice straw produced, estimate Greenhouse Gas (GHG) emissions based on its current uses, and assess its possible energy potential and related GHG emissions mitigation potential.
Journal ArticleDOI
29Si MAS NMR, XRD and FESEM studies of rice husk silica for the synthesis of zeolites
TL;DR: The local structure of amorphous silica was investigated by 29Si magic-angle spinning nuclear magnetic resonance (MAS NMR) and field emission scanning electron microscopy (FESEM) in order to optimize the process as mentioned in this paper.
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