04 - LIDSEN Publishing Inc.丨The Open Access Publisher

Volume 3,Issue 4

Open Access Research Article

NaY Zeolite Synthesis from Vermiculite and Modification with Surfactant

Thiago Rodrigo Barbosa Barros ,

Thianne Silva Batista Barbosa and

Meiry Gláucia Freire Rodrigues

Received: 24 October 2023; Published: 26 December 2023; doi: 10.21926/cr.2304031

Abstract

This work focuses on preparing NaY zeolite using alternative sources of silica and modifying the zeolite with the surfactant cetyltrimethylammonium bromide. Two different hydrothermal synthesis routes were employed: the conventional method using sodium silicate as the silica source, and the other is a sustainable approach using vermiculite clay as the silica source. In traditional zeolite synthesis, sodium silicate is often used as the source of silica. However, . The vermiculite was subjected t [...]

Open Access Research Article

Synthesis of SAPO-34 Zeolite Membrane: Influence of Sources of Silica

Tellys Lins Almeida Barbosa and

Meiry Gláucia Freire Rodrigues

Received: 03 October 2023; Published: 11 December 2023; doi: 10.21926/cr.2304030

Abstract

The research described the production and characterization of various materials, particularly alpha-alumina ceramic supports, zeolite SAPO-34, and zeolite membranes. Ceramic supports were manufactured through dry uniaxial compaction. Sintering of the supports was carried out at 1300°C for 2 h. SAPO-34 zeolites and zeolite membranes were synthesized through a hydrothermal process involving two steps: a first step at 38°C for 24 h and a second step at 200°C for 24 h. The research aimed to determin [...]

Open Access Original Research

In Water High Yield and Selectivity of CH₄ and H₂ Production from CO₂ Using UVC Light and a SiO₂-surface-modified TiO₂ Photocatalysts

Oswaldo Núñez ,

Mohammad Fereidooni ,

Victor Márquez ,

Duangthip Sattayamuk ,

Piyasan Praserthdam and

Supareak Praserthdam

Received: 25 August 2023; Published: 05 December 2023; doi: 10.21926/cr.2304029

Abstract

To improve CH₄ and H₂ formation from CO₂ photoreduction using non-organic, non-laborious, and inexpensive photocatalysts, we have prepared two surface-silicate-modified TiO₂ catalysts: P25-SiO₂ and AmTiO₂-SiO₂ (amorphous TiO₂) to be tested in water and using UV light. The last catalyst produces more CH_{4& [...]}

Open Access Research Article

Nano Metal Oxide Frameworks (NOF): Development of New Heterogeneous Catalyst for the Synthesis of Furan Derivatives from Glucose

Rama Jaiswal ,

Melad Shaikh and

kalluri V. S. Ranganath

Received: 01 June 2023; Published: 21 November 2023; doi: 10.21926/cr.2304028

Abstract

A surface modification approach has prepared a nanostructured organic framework connecting two metal oxide NPs. The surface modifier attached two metal oxide NPs via molecular interaction to generate modular structures of fiber, rod, or sponge materials. Thus, obtained hybrid systems have been confirmed through FT-IR, TGA, PXRD, and SEM. Metal oxides such as Fe₃O₄ and MgO generated mixed materials via the surface modification app [...]

Open Access Research Article

Impact of Pt-Ni Nanoparticle Architecture on Electrocatalytic Oxidation Reaction in Fuel Cells

Nicolas A. Ishiki ,

Maria L. Della-Costa ,

Beatriz Keller ,

Kleper O. Rocha ,

Francielle Bortoloti and

Antonio C. D. Ângelo

Received: 04 September 2023; Published: 16 November 2023; doi: 10.21926/cr.2304027

Abstract

This paper investigates how the aggregation of bimetallic nanoparticles (NPs) influences the electronic condition of the surface adsorption site and, hence, the performance of materials during the electrooxidation of fuels in an alkaline medium. First, we synthesized Pt-Ni NPs in three configurations: ordered intermetallic, ordinary alloy, and core-shell. The NPs contained Pt and Ni close to a 1:1 Pt/Ni atomic ratio. They had similar particle sizes, which allowed us to evaluate their performance [...]

Open Access Review

Enzymes in Poly(Butylene-Succinate) Industry: An Overview on Synthesis Routes and Post-Processing Strategies

Daria Armani and

Antonella Petri

Received: 16 June 2023; Published: 08 November 2023; doi: 10.21926/cr.2304026

Abstract

This paper will present some sectors in which enzymes can replace traditional catalysts in poly(butylene-succinate) industry, emphasizing the green chemistry aspects associated with these newer strategies.

Open Access Original Research

Tungstophosphate Intercalated ZnAl Layered Double Hydroxide for Adsorptive and Visible Light Driven Photocatalytic Decolourisation of Organic Dyes

Bhabani Shankar Mohanta ,

Rita Das and

Nigamananda Das

Received: 21 December 2022; Published: 13 October 2023; doi: 10.21926/cr.2304025

Abstract

Tungstophosphate (PW₁₂O₄₀^3-) intercalated ZnAl-Layered double hydroxide (ZnAl-PW₁₂) was successfully synthesized through the rehydration of calcined LDH. Chemical analyses and characterizations by powder XRD, FT-IR, and Diffuse reflectance UV-Vis spectra confirmed the intercalation of PW₁₂O₄₀^3- ions equivalent to ~80% of the residual pos [...]

Open Access Short Review

Perovskite Oxide Thermoelectric Module - A Way Forward

Abanti Nag

Received: 27 July 2023; Published: 11 October 2023; doi: 10.21926/cr.2304024

Abstract

In the era of renewable and sustainable energy, perovskite materials remain pioneers as energy harvesting materials, be it thermoelectric waste heat harvesting or photovoltaic solar cell application. Oxide perovskite material is an emerging thermoelectric material in solving energy shortage issues through waste heat recovery. The chemical and structural stabilities, oxidation resistance, and cost-effective and straightforward manufacturing process are a few advantages of the oxide-based thermoel [...]

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