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ChemEngineering, Volume 8, Issue 1

2024 February - 25 articles

Cover Story: This study introduces a simple but powerful method for crafting advanced surface-enhanced Raman scattering (SERS) substrates. By subjecting Au nanowires to controlled heat, we observed a remarkable transformation: the nanowires transitioned into nanospheres and nanorods at elevated temperatures. This transformation significantly enhanced Raman signals, particularly demonstrated with Rhodamine B molecules. This highlights the crucial role of heat-induced Au nanowire changes in increasing the SERS effect. The presented method proves to be cost-effective and reliable for producing high-performing SERS substrates. By simplifying the fabrication process, we are opening doors to efficient and affordable advancements in Raman technology. View this paper
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Articles (25)

  • Communication
  • Open Access
3 Citations
3,164 Views
10 Pages

Synthesis of ZnS/Al2O3/TaSe2 Core/Shell Nanowires Using Thin Ta Metal Film Precursor

  • Boris Polyakov,
  • Kevon Kadiwala,
  • Edgars Butanovs,
  • Luize Dipane,
  • Annamarija Trausa,
  • Dmitry Bocharov and
  • Sergei Vlassov

This study introduces a novel approach for fabricating ZnS/Al2O3/TaSe2 heterostructured core/shell nanowires (NWs) through the selenization of a metallic Ta thin film precursor. The synthesis process involves a meticulously designed four-step protoco...

  • Article
  • Open Access
4 Citations
3,207 Views
29 Pages

Fall and Rise: Disentangling Cycle Life Trends in Atmospheric Plasma-Synthesized FeOOH/PANI Composite for Conversion Anodes in Lithium-Ion Batteries

  • Evgenii V. Beletskii,
  • Alexey I. Volkov,
  • Ksenia A. Kharisova,
  • Oleg V. Glumov,
  • Maksim A. Kamarou,
  • Daniil A. Lukyanov and
  • Oleg V. Levin

Various iron oxides have been proven to be promising anode materials for metal-ion batteries due to their natural abundance, high theoretical capacity, ease of preparation, and environmental friendliness. However, the synthesis of iron oxide-based co...

  • Review
  • Open Access
16 Citations
7,571 Views
16 Pages

A Review on Lanthanum-Based Materials for Phosphate Removal

  • Sundarakannan Rajendran,
  • A. V. S. L. Sai Bharadwaj,
  • Praveen Barmavatu,
  • Geetha Palani,
  • Herri Trilaksanna,
  • Karthik Kannan and
  • Nagaraj Meenakshisundaram

In the past decade, eutrophication and phosphate recovery from surface water have become major issues. Adsorption is an effective method for phosphate removal because of its high efficiency. Even though lanthanum-based compounds are effective at remo...

  • Brief Report
  • Open Access
1 Citations
2,519 Views
12 Pages

Chemical Species Formed on FeB-Fe2B Layers during Wet Sliding Wear Test

  • Ricardo Andrés García-León and
  • Nelson Afanador-García

In the present work, X-ray photoelectron spectroscopy (XPS) survey spectra of borided AISI 316L for two different times (1 and 6 h) of exposure to simulated body fluid (SBF) were obtained after wet sliding wear. A borided layer of ~39 microns was obt...

  • Article
  • Open Access
1 Citations
2,835 Views
21 Pages

We report a detailed investigation of the vibrational modes, structure, and dynamics of glutathione (GSH) solutions using ultrasonic relaxation spectroscopy, FT-IR vibrational spectroscopy, and electronic absorption measurements. The experimental dat...

  • Article
  • Open Access
6 Citations
3,736 Views
12 Pages

Novel Bi-Functional MoS2/α-Fe2O3 Nanocomposites for High Photocatalytic Performance

  • Islam Ibrahim,
  • Pinelopi P. Falara,
  • Elias Sakellis,
  • Maria Antoniadou,
  • Chrysoula Athanasekou and
  • Michalis K. Arfanis

In this study, 3-dimensional molybdenum disulfide (MoS2) structures, integrated with hematite (α-Fe2O3) nanoparticles, were fabricated under a convenient two-step hydrothermal route. The fabricated photocatalytic nanocomposites consist of well-...

  • Communication
  • Open Access
3 Citations
3,354 Views
13 Pages

Zinc Oxide Tetrapods Doped with Silver Nanoparticles as a Promising Substrate for the Detection of Biomolecules via Surface-Enhanced Raman Spectroscopy

  • Edgars Vanags,
  • Ivita Bite,
  • Liga Ignatane,
  • Reinis Ignatans,
  • Annamarija Trausa,
  • Ciro Federiko Tipaldi,
  • Karlis Vilks and
  • Krisjanis Smits

In this study, we report the fabrication and characterization of silver nanoparticle-doped zinc oxide tetrapod substrates used for surface-enhanced Raman scattering to detect rhodamine B. Prior to this, silver nanoparticle-doped zinc oxide tetrapods...

  • Article
  • Open Access
30 Citations
5,285 Views
15 Pages

Characterization and Thermal Evaluation of a Novel Bio-Based Natural Insulation Material from Posidonia oceanica Waste: A Sustainable Solution for Building Insulation in Algeria

  • Dhouha Ben Hadj Tahar,
  • Zakaria Triki,
  • Mohamed Guendouz,
  • Hichem Tahraoui,
  • Meriem Zamouche,
  • Mohammed Kebir,
  • Jie Zhang and
  • Abdeltif Amrane

Natural bio-based insulation materials have been the most interesting products for good performance and low carbon emissions, becoming widely recognized for their sustainability in the context of climate change and the environmental impact of the bui...

  • Review
  • Open Access
18 Citations
10,072 Views
31 Pages

The global issue of climate change caused by humans and its inextricable linkage to our present and future energy demand presents the biggest challenge facing our globe. Hydrogen has been introduced as a new renewable energy resource. It is envisaged...

  • Article
  • Open Access
9 Citations
3,988 Views
15 Pages

Enhancing Recovery Yield of Vegetable Oil Methyl Ester for Bioresin Production: A Comparison Study Using Acid Neutralization

  • Md. Sanaul Huda,
  • Michael Odegaard,
  • Niloy Chandra Sarker,
  • Dean C. Webster and
  • Ewumbua Monono

Vegetable oil methyl ester has promising properties for bio-based resin production due to its higher degree of unsaturation. The initial low methyl ester yield from corn oil compared to soybean and canola oils requires further investigation of the in...

  • Communication
  • Open Access
3 Citations
3,404 Views
10 Pages

Heat-Induced Fragmentation and Adhesive Behaviour of Gold Nanowires for Surface-Enhanced Raman Scattering Substrates

  • Annamarija Trausa,
  • Ciro Federiko Tipaldi,
  • Liga Ignatane,
  • Boris Polyakov,
  • Sven Oras,
  • Edgars Butanovs,
  • Edgars Vanags and
  • Krisjanis Smits

This study explores a novel approach to surface-enhanced Raman scattering (SERS) substrate fabrication through the heat-induced fragmentation of gold nanowires (Au NWs) and its impact on gold nanoparticle adhesion/static friction using atomic force m...

  • Article
  • Open Access
5 Citations
3,666 Views
17 Pages

Oxidation of Allura Red AC Using the NaHCO3-activated H2O2 System Catalyzed with Cobalt Supported on Al-PILC

  • Natalia Marín-González,
  • Camila Giraldo-Loaiza,
  • Iván F. Macías-Quiroga,
  • Juan D. Rivera-Giraldo,
  • Julio A. Cardona-Castaño and
  • Nancy R. Sanabria-González

The oxidation of aqueous solutions containing Allura Red AC (AR–AC) using bicarbonate-activated peroxide (BAP) and cobalt-impregnated pillared clay (Co/Al–PILC) as the catalyst was investigated. Using the CCD-RMS approach (central composi...

  • Article
  • Open Access
2,501 Views
17 Pages

Evaluation of Ceramic Properties of Bauxitic Materials from SE of Iberian Range

  • Domingo Martín,
  • Adolfo Miras,
  • Antonio Romero-Baena,
  • Isabel Guerrero,
  • Joaquín Delgado,
  • Cinta Barba-Brioso,
  • Paloma Campos and
  • Patricia Aparicio

The use of aluminum-rich clays and bauxites as refractory materials is common. Upon firing, these materials form mullite crystals in the shape of needles embedded in a siliceous and vitreous matrix, with mullite being responsible for the refractory p...

  • Article
  • Open Access
1 Citations
2,769 Views
11 Pages

Lipases can catalyze synthesis reactions in a micro aqueous system, producing useful partial glycerides (mono- and diglycerides), and these compounds are commonly utilized in different products as surfactants. Depending on the microbial sources for l...

  • Article
  • Open Access
10 Citations
4,628 Views
14 Pages

A key focus of microalgae-based fuels/chemicals research and development has been on the lipids that many strains generate, but recent studies show that solely recovering these lipids may not be cost competitive with fossil-derived processes. However...

  • Article
  • Open Access
4 Citations
4,476 Views
11 Pages

Simulation Process for Allyl Alcohol Production via Deoxydehydration of Glycerol

  • Ghadir Assaad,
  • Karen Silva Vargas,
  • Benjamin Katryniok and
  • Marcia Araque

A process for the deoxydehydration (DODH) of glycerol to allyl alcohol in 2-hexanol as solvent was modelled with Aspen Plus. Experimental results for the DODH reaction, the liquid vapour equilibria and the catalytic hydrogenation were employed for th...

  • Article
  • Open Access
3,123 Views
15 Pages

Nano-Iron Oxide Coating for Enhanced Heat Transfer in Gas–Solid Fluidized Bed Systems

  • Fadhl H. Faraj,
  • Jamal M. Ali,
  • Sarmad T. Najim,
  • Abbas J. Sultan,
  • Saja M. Alardhi and
  • Hasan Sh. Majdi

This study explores using iron oxide coatings on glass beads to improve heat transfer efficiency in fluidized bed reactors. Techniques such as BET surface area analysis, SEM imaging, and X-ray diffraction were used to characterize the coated beads. R...

  • Article
  • Open Access
6 Citations
3,412 Views
19 Pages

Catalysts Based on Iron Oxides for Wastewater Purification from Phenolic Compounds: Synthesis, Physicochemical Analysis, Determination of Catalytic Activity

  • Binara T. Dossumova,
  • Larissa R. Sassykova,
  • Tatyana V. Shakiyeva,
  • Dinara Muktaly,
  • Aigul A. Batyrbayeva and
  • Madina A. Kozhaisakova

In this work, the synthesis of magnetite nanoparticles and catalysts based on it stabilized with silicon and aluminum oxides was carried out. It is revealed that the stabilization of the magnetite surface by using aluminum and silicon oxides leads to...

  • Article
  • Open Access
5 Citations
3,635 Views
22 Pages

In multi-solid, particle-size fluidized bed reactor systems, segregation is commonly observed. When segregation occurred, small solid particles were entrained to the top of the bed and escaped from the reactor. During the combustion process, the smal...

  • Article
  • Open Access
1 Citations
3,232 Views
13 Pages

Based on the TraPPE force field, previously unknown values of the parameters of the intermolecular interaction potential of trans-decalin were determined. Parametrization was carried out using experimental data on saturated vapor pressure and density...

  • Article
  • Open Access
2 Citations
2,935 Views
14 Pages

Biomass as a whole offers a more diverse potential for valorisation than any other renewable energy source. As one of the stages in the separation of bio-oil involves a liquid mixture of acetol and acetic acid, and as both components are particularly...

  • Communication
  • Open Access
1 Citations
3,802 Views
12 Pages

Ultrafiltration is a well-known operation, widely used in food processing, especially to concentrate selectively liquid compounds. However, so far, it has been mainly used to change concentration and/or clarify liquids with low viscosity. Ultrafiltra...

  • Article
  • Open Access
7 Citations
4,750 Views
12 Pages

Antisolvent Crystallization of Papain

  • Sasitorn Boonkerd and
  • Lek Wantha

Protein crystallization plays a crucial role in the food and pharmaceutical industries, enhancing product quality and efficiency by improving purity and controlled particle characteristics. This study focused on the crystallization of the versatile p...

  • Article
  • Open Access
5 Citations
4,513 Views
15 Pages

Initiated chemical vapor deposition is a unique solvent-free and completely dry vapor-phase deposition technique used to synthesize organic polymer films. In this process, an activated initiator, monomer, and carrier gas are introduced into the react...

  • Article
  • Open Access
5 Citations
3,417 Views
28 Pages

Improved Fault Detection in Chemical Engineering Processes via Non-Parametric Kolmogorov–Smirnov-Based Monitoring Strategy

  • K. Ramakrishna Kini,
  • Muddu Madakyaru,
  • Fouzi Harrou,
  • Mukund Kumar Menon and
  • Ying Sun

Fault detection is crucial in maintaining reliability, safety, and consistent product quality in chemical engineering processes. Accurate fault detection allows for identifying anomalies, signaling deviations from the system’s nominal behavior,...

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ChemEngineering - ISSN 2305-7084