ORALS

SESSION: AdvancedMaterialsTuePM2-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Tue. 28 Nov. 2023 / Room: Heliconia
Session Chairs: Zhen Chen; Wael Zatar; Session Monitor: TBA

16:50: [AdvancedMaterialsTuePM211] OS
SYNTHESIS AND CHARACTERIZATION OF ECOLOGICAL CEMENT USING SANSEVIERIA TRIFASCIATA FIBER AS REINFORCEMENT MATERIAL
Fernanda A Sampaio Da Silva¹ ; Amanda Fonseca¹ ; Bonifácio De Oliveira Fialho² ; Ingrid R De Lima² ; Marcos De Campos³ ; ¹Federal Fluminense University, Volta Redonda , Brazil; ²Federal Fluminense University, Volta Redonda, Brazil; ³UFF - Federal Fluminense U., Volta Redonda, Brazil;
Paper Id: 189 [Abstract]

Vegetable fiber cement is a new compound made from a mixture of cement, inorganic waste (slag) and plant fibers (banana, sisal, coconut, eucalyptus or other plants). Vegetal fiber cement has several advantages over common fiber cement. This material stands out mainly for not offering health risks related to inorganic dust, as occurs with mineral fibers. In addition, reinforcing the cementitious matrix with plant fibers improves the mechanical performance and durability of these materials. Another advantage is related to water absorption. The vegetable fiber cement samples have a relevant waterproofing capacity.The purpose of this work is the development and characterization of a concrete material reinforced with natural fibers. The use of plant fibers in civil construction is sustainable and environmentally friendly. The inorganic residue used was red clay. Vegetal fibers of Sansevieria trifasciata (popularly known as Espada de São Jorge in Brazil) were tested as reinforcement of the cementitious matrix. Sansevieria trifasciata fibers can increase the mechanical strength of the cementitious matrix. The fibers were subjected to an alkaline treatment in order to increase their surface area. In addition, the fiber size was also tested. The fiber size has a direct influence on its dispersion in the matrix. The material was subjected to compression and structural physical tests (absorption index, voids index, specific mass), treatment and characterization of the vegetable fiber, and also the granulometry of the cement mixture. The results indicate that the fiber size and the chemical treatment previously carried out significantly influence the physical properties and ability to withstand compressive load.

SESSION: AdvancedMaterialsTuePM3-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Tue. 28 Nov. 2023 / Room: Heliconia
Session Chairs: Marcos De Campos; Session Monitor: TBA

17:55: [AdvancedMaterialsTuePM313] OS
SYNTHESIS AND CHARACTERIZATION OF FERROUS NANOPARTICLES FROM MINT EXTRACT
Fernanda A Sampaio Da Silva¹ ; Arthur Coelho Abrantes² ; Ingrid R De Lima² ; Bonifácio De Oliveira Fialho² ; Marcos De Campos³ ; ¹Federal Fluminense University, Volta Redonda , Brazil; ²Federal Fluminense University, Volta Redonda, Brazil; ³UFF - Federal Fluminense U., Volta Redonda, Brazil;
Paper Id: 188 [Abstract]

Water bodies have systematically suffered from pollution caused by urban and industrial activities. Heavy metals are in a category of contaminants of lakes, rivers and seas that are of great concern. The development of environmentally correct alternatives is necessary to neutralize the action of heavy metals. It is worth noting that numerous solutions have already been adopted in order to remove heavy metals from seas and lakes. However, the production of some products to remove contaminants causes environmental pollution. Therefore, it is extremely important to develop an environmentally friendly synthesis route, so that the production process is consistent with the purpose of the final product. The objective of this work is the development of an environmentally friendly route for the synthesis of bifunctional zero valency iron using agro-industry residues with low added value. They have a metallic phase (zero valency iron) to degrade the harmful metals and an organic phase (grape peel biomass) suitable for adsorption pollutants. The particles were produced by a green route using Mentha spicata extract as an iron-reducing agente of Fe3+. The results indicated the presence of ferrous material in the samples. Furthermore, the functionality of the composite was analyzed by spectrophotometry, with a reduction of up to 53% of heavy metal ions (Cr6 +) in contaminated water. Therefore, the biocomposite is functional and has the ability to remove heavy metals.

SESSION: AdvancedMaterialsWedPM1-R5	7th Intl Symposium on New & Advanced Materials and Technologies for Energy, Environment, Health and Sustainable Development
Wed. 29 Nov. 2023 / Room: Heliconia
Session Chairs: Fernand Marquis; Marcos De Campos; Session Monitor: TBA

14:30: [AdvancedMaterialsWedPM106] OS
OBTAINING BIOFUEL FROM WASTE FRYING OILS AND COMMERCIAL LINSEED OIL
Moacyr De Rezende¹ ; Fernanda A Sampaio Da Silva² ; Ingrid R De Lima¹ ; Bonifácio De Oliveira Fialho¹ ; Marcos De Campos³ ; ¹Federal Fluminense University, Volta Redonda, Brazil; ²Federal Fluminense University, Volta Redonda , Brazil; ³UFF - Federal Fluminense U., Volta Redonda, Brazil;
Paper Id: 270 [Abstract]

There is a great worldwide effort in research for the creation of technologies that allow the generation of energy through the use of new renewable biofuels that replace the traditional fuels derived from petroleum. We propose the synthesis of renewable biodiesel that was synthesized via chemical reaction of homogeneous alkaline transesterification and with ethyl route, from mixtures with different organic sources of fatty acids, proportions of composition between residual vegetable oil from frying and commercial linseed vegetable oils. The reaction was carried out in basic medium. The catalyst used (potassium hydroxide) was finely dispersed in infinite dilution condition, in order to ensure an effective nanotechnological condition for optimizing the degree of conversion of the mixture. The objective of these study is to understand the influence on the quality of the biodiesel produced, based on the most up-to-date specifications informed by the ANP. The evaluated parameters were measurement of specific mass; reaction yield of esters by mass; acid index and kinematic viscosity measurement at 40 0C. In addition, the results showed that regardless of the sample composition, the results of the kinematic viscosity measurement at 40 0C are in accordance with the current national biodiesel specifications. In conclusion, the results showed that the rheological classification for all samples consisted of the Newtonian fluid model, or the Power Law model when the power index is equal to unity (n=1).