Use of Tunisian Opuntia ficus-indica Cladodes as a Low Cost Renewable Admixture in Cement Mortar Preparations

Azizi, Chiraz El; Hammi, Halim; Chaouch, Mohamed Aymen; Majdoub, Hatem; M’nif, Adel

doi:10.1007/s42250-019-00040-7

Cited by 8 publications

(7 citation statements)

References 24 publications

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“…The XRD patterns of the CP, agar, and CP/A‐based films with and without glycerol are presented in Figure 2(c),(d). In general, the films exhibited the characteristic peaks of both the OFI CP 28 and agar (unpurified), 29 and the increase of the glycerol concentration from 0 to 60% induced a decrease in the crystallinity of the plasticized films, particularly for the higher concentration of glycerol (CP/A‐G60) where most of the diffraction peaks disappeared (Figure 2(d)). Moreover, the small shift of some of the peaks to lower 2θ values might be indicative of the formation of hydrogen bonds between the three components, as reviewed by Vieira et al 24 and Mostafavi and Zaeim 14 .…”

Section: Resultsmentioning

confidence: 96%

Bio‐based sustainable films from the Algerian Opuntia ficus‐indica cladodes powder: Effect of plasticizer content

Makhloufi

Chougui

Rezgui

et al. 2021

J of Applied Polymer Sci

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The present study investigated the fabrication and characterization of bio‐based sustainable films composed of a terrestrial plant raw material, namely Opuntia ficus‐indica (OFI) cladodes powder (CP) and a marine seaweed derivative, namely agar (A). The effect of glycerol concentration on the properties of the casted films was evaluated at four different contents, namely 30, 40, 50 and 60 wt%. The films present UV‐blocking properties, as well as moderate mechanical performance, thermal stability, and water vapor transmission rate (WVTR). The results point to an increase in thickness, elongation at break, moisture content, water solubility, and WVTR with increasing glycerol content. On the contrary, Young's modulus, tensile strength, and water contact angle decreased as glycerol concentration increased. The best combination is obtained for the film with 30% glycerol, based on an intermediate compromise between physical, mechanical, thermal, and barrier properties. All these outcomes express the potentiality of the powder obtained from grinding the OFI cladodes as raw material to produce low‐cost films for the development of sustainable packaging materials.

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Section: Resultsmentioning

confidence: 96%

Bio‐based sustainable films from the Algerian Opuntia ficus‐indica cladodes powder: Effect of plasticizer content

Makhloufi

Chougui

Rezgui

et al. 2021

J of Applied Polymer Sci

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“…To identify the presence of mucilage, it was carried out an ED-XRF analysis. Results are shown in Figure 5, where it is possible to appreciate an increase of potassium and calcium ions that are characteristic of nopal mucilage (Aquilina et al, 2018;El Azizi et al, 2019;Carrillo et al, 2017;Madera-Santana et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

“…The effect of these materials can be aborded from two points of view. The first one is related to the water retention capacity of the nopal mucilage, which results in a better watering effect that enhances the setting process and reduces the water-to-cement ratio, achieving higher strength values (Aquilina et al, 2018;El Azizi et al, 2019;Madera-Santana et al, 2018;Torres-Acosta & Díaz-Cruz, 2020). Moreover, the porosity and total void content are related to excess water or air trapping during the fabrication and setting process.…”

Section: Methodsmentioning

confidence: 99%

“…In these cases, almost an increase of 75% of the compressive strength is achieved for an average substitution of 2%. However, the cladode's powders' obtention is more expensive than the obtention process of the mucilage extract, which could not be profitable for industrial applications (Aquilina et al, 2018;El Azizi et al, 2019;Madera-Santana et al, 2018).…”

Section: Public Interest Statementmentioning

confidence: 99%

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Effect of natural additives on concrete mechanical properties

et al. 2021

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“…The cake is a by-product of oil extraction from prickly pear seeds. The chemical composition of prickly pear cake was determined according to TAPPI standardized methods as previously described [43][44][45][46][47], namely, ash content T211 om-07,lignin T222 om-06, holocellulose Wise et al method [48], and α-cellulose T 203 cm-99. Elemental analysis of prickly pear cake was performed with the Thermo Scientific Flash 2000 CHNS-O Analyzer.…”

Section: Prickly Pear Seed Cake Characterizationmentioning

confidence: 99%

Optimization of the Preparation of Activated Carbon from Prickly Pear Seed Cake for the Removal of Lead and Cadmium Ions from Aqueous Solution

et al. 2022

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In this study, we evaluated the use of prickly pear seed cake, a by-product of prickly pear seed oil extraction, as a new precursor for producing activated carbon by phosphoric acid activation, and the obtained carbon’s capacity for heavy metal removal from aqueous solution. Response surface methodology based on the full factorial design at two levels (24) was developed to reduce the number of experiments and reach optimal preparation conditions for the removal of cadmium and lead ions from aqueous solutions. Design Expert 11.1.2.0 Trial software was used for generating the statistical experimental design and analyzing the observed data. Factors influencing the activation process, such as carbonization temperature, activation temperature, activation time, and impregnation ratio, were studied. Responses were studied in depth with an analysis of variance to estimate their significance. Each response was outlined by a first-order regression equation demonstrating satisfactory correspondence between the predicted and experimental results as the adjusted coefficients of correlation. Based on the statistical data, the best conditions for the removal of heavy metals from aqueous solution by the obtained activated carbon were indicated. The maximum iodine number and methylene blue index were 2527.3 mg g−1 and 396.5 mg g−1, respectively, using activated carbon obtained at the following conditions: Tc = 500 °C, Ta = 500 °C, impregnation ratio = 2:1 (g H3PO4: g carbon), and activation time of two hours. The maximum adsorption reached 170.2 mg g−1 and 158.4 mg g−1 for Cd2+ and Pb2+, respectively, using activated carbon obtained at the following conditions: Tc = 600 °C, Ta = 400 °C, impregnation ratio = 2:1 (g H3PO4: g carbon), and activation time of one hour. The activated carbon obtained was characterized by Boehm titration, pH of point of zero charge (pHPZC), Brunauer–Emmett–Teller surface area (SBET), and scanning electron microscopy. Adsorption was performed according to different parameters: pH solution, adsorbent dosage, temperature, contact time, and initial concentration. Regeneration experiments proved that the obtained activated carbon still had a high removal capacity for Cd2+ and Pb2+ after five regeneration cycles.

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Use of Tunisian Opuntia ficus-indica Cladodes as a Low Cost Renewable Admixture in Cement Mortar Preparations

Cited by 8 publications

References 24 publications

Bio‐based sustainable films from the Algerian Opuntia ficus‐indica cladodes powder: Effect of plasticizer content

Bio‐based sustainable films from the Algerian Opuntia ficus‐indica cladodes powder: Effect of plasticizer content

Effect of natural additives on concrete mechanical properties

Optimization of the Preparation of Activated Carbon from Prickly Pear Seed Cake for the Removal of Lead and Cadmium Ions from Aqueous Solution

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