Geopolymers based on natural perlite and kaolinic clay from Morocco: Synthesis, characterization, properties, and applications

Aziz, Ayoub; Bellil, Abdelilah; Hassani, Iz-Eddine El Amrani El; Fekhaoui, Mohammed; Achab, Mohammed; Dahrouch, Abdelouahed; Benzaouak, Abdellah

doi:10.1016/j.ceramint.2021.05.190

Cited by 31 publications

(14 citation statements)

References 41 publications

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“…These phases are related to the early formation of microcrystals during the ascent of magma toward the Earth's surface [41,42]. Additionally, the presence of an amorphous halo is observed in the 2θ range between 20 to 30 • (CP waste) and between 15 to 30 • (FP waste), characteristic of perlite [43]. Similar findings have been documented in the existing literature [27,44,45].…”

Section: Characterizationssupporting

confidence: 83%

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Filho,

Silva,

Silva

et al. 2023

Sustainability

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Perlite waste materials with different particle sizes were evaluated as potential candidates for removing the malachite green (MG) and Congo red (CR) dyes from contaminated water. Two types of waste, referred to as coarse (CP) and fine (FP), with particle sizes of 0.075 mm, 0.045 mm, and 0.037 mm, were used. The samples were characterized using X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, and N2 adsorption/desorption. The adsorption efficiency of MG and CR was investigated by varying the parameters of pH, contact time, and initial concentration. The reduction in particle size significantly influenced the removal of the CR dye, leading to an increase in the adsorption rate of 23.9% and 45.5% for CP and FP, respectively. Conversely, the adsorption of the MG dye on the residues was not affected by different particle sizes. CP and FP exhibited a removal rate exceeding 70% for both dyes. The adsorption of MG and CR on the wastes was well-described by the Sips isotherm model. The results of adsorption kinetics were best fit by the Elovich model. Perlite waste materials have demonstrated significant potential for the adsorptive remove of cationic and anionic dyes from aqueous solutions.

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Section: Characterizationssupporting

confidence: 83%

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Filho,

Silva,

Silva

et al. 2023

Sustainability

View full text Add to dashboard Cite

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“…42 The occurrence of the bands at 600 cm −1 may be attributed to the stretching vibrations of Si−O and Si−O−Al. 36,43 For the Ni 0 NPs, the FTIR spectrum indicates the occurrence of the characteristic bands at 490 cm −1 confirming the presence of the stretching vibrations of Ni−O in the prepared nanoparticles. The observed small adsorption peaks at 1100 and 1597 cm −1 correspond to the C−O and C�C aromatic stretching and may be due to the phytochemicals presence in the PM extract that were stacked on the surface of Ni 0 NPs through active participation in the reduction and capping process.…”

Section: Characterization Of Materialsmentioning

confidence: 70%

Treated Kaolin Clay Incorporated with Nickel Nanoparticles for Enhanced Removal of Crystal Violet and Methyl Orange from Textile Wastewater

Ike,

Babayemi,

Egbosiuba

et al. 2024

ACS Appl. Eng. Mater.

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In this study, a novel biobased treated kaolin clay incorporated with zerovalent nickel (TKC-Ni 0 NPs) was fabricated and employed as an efficient functionalized adsorbent for the elimination of crystal violet (CV) and methyl orange (MO) from textile wastewater. The adsorption capacity of TKC-Ni 0 NPs was improved by incorporating the functional moieties of nickel nanoparticles on the treated kaolin clay structure using the experimental data from the kinetics, isotherm, thermodynamics, and reusability study. The crystalline structures, functional groups, and morphological characteristics of TKC, Ni 0 NPs, and TKC-Ni 0 NPs were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and high-resolution scanning electron microscopy (HRSEM). The point of zero charge pH on the surface of the TKC-Ni 0 NPs was evaluated as 4.5. The adsorptive removal of CV and MO was explored at solution pH, contact time, adsorbent dosage, initial CV/MO concentration, and temperature. Maximum adsorption capacities of 802.56 and 812.28 mg/g were reported for both CV and MO using TKC-Ni 0 NPs at the optimal solution pH of 6 for CV and 4 for MO, contact time of 60 min, adsorbent dosage of 25 mg/L, initial CV/MO concentration of 100 mg/L, and temperature of 313 K. Remarkably, TKC-Ni 0 NPs exhibited favorable behavior for the adsorption of MO and CV in the presence of both cationic and anionic coexisting ions. The reusability study showed over 92.00 and 94.00% effectiveness for CV and MO even after 10 cycles, respectively, which holds great promise for industrial use. A pseudo-second-order kinetic model effectively suited the adsorption kinetics, implying that the adsorption process is chemisorption controlled. Among the explored isotherm models, the Langmuir isotherm model exhibited the best fit for the experimental data. Thermodynamic analysis indicated that the adsorption is endothermic and spontaneous on the adsorbent surface. Consequently, a cost-effective, versatile, and stable biobased composite with significant potential for industrial wastewater treatment was successfully developed.

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“…Numerous studies of kaolin as a ceramic material show it is widely used for high performance ceramic materials, which are divided according to the end use application into electronic packaging industries [ 61 ], electroceramics (dielectric [ 64 ], insulator [ 63 ]), ceramic foam [ 62 ], ceramic grog [ 9 ], cementitious materials [ 15 , 60 ], soil construction [ 65 ], and ceramic coatings [ 66 ].…”

Section: Factors Affecting the Suitability Of Kaolin Geopolymers In C...mentioning

confidence: 99%

“…There is a critical alkaline concentration that can achieve the maximum compressive strength, and a higher concentration does not favour the formation of geopolymers, according to prior research that used kaolin as a single source material to synthesise geopolymer products and investigate the effect of different alkaline activator concentrations on the compressive strength [ 22 , 56 , 85 , 86 ]. Important criteria that influence the degree of the geopolymerization process and the reaction duration with the alkali activator, respectively, are the Si-to-Al ratio and the ageing time [ 26 , 63 , 87 ]. Table 4 summarises the utilisation of alkali activator in past studies on kaolin.…”

Section: Factors Affecting the Suitability Of Kaolin Geopolymers In C...mentioning

confidence: 99%

“…The chemical composition of raw materials as determined by X-ray fluorescence impacts the development of geopolymerization and the kind and quantity of zeolite [ 12 , 22 , 63 , 107 ]. The primary chemical component of kaolin, kaolinite, is dehydroxylated at temperatures reaching 550 °C, hence converting its long-range organised microstructure to an amorphous state.…”

Section: Properties Of the Kaolin Ceramic Geopolymersmentioning

confidence: 99%

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Geopolymer Ceramic Application: A Review on Mix Design, Properties and Reinforcement Enhancement

et al. 2022

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Geopolymers have been intensively explored over the past several decades and considered as green materials and may be synthesised from natural sources and wastes. Global attention has been generated by the use of kaolin and calcined kaolin in the production of ceramics, green cement, and concrete for the construction industry and composite materials. The previous findings on ceramic geopolymer mix design and factors affecting their suitability as green ceramics are reviewed. It has been found that kaolin offers significant benefit for ceramic geopolymer applications, including excellent chemical resistance, good mechanical properties, and good thermal properties that allow it to sinter at a low temperature, 200 °C. The review showed that ceramic geopolymers can be made from kaolin with a low calcination temperature that have similar properties to those made from high calcined temperature. However, the choice of alkali activator and chemical composition should be carefully investigated, especially under normal curing conditions, 27 °C. A comprehensive review of the properties of kaolin ceramic geopolymers is also presented, including compressive strength, chemical composition, morphological, and phase analysis. This review also highlights recent findings on the range of sintering temperature in the ceramic geopolymer field which should be performed between 600 °C and 1200 °C. A brief understanding of kaolin geopolymers with a few types of reinforcement towards property enhancement were covered. To improve toughness, the role of zirconia was highlighted. The addition of zirconia between 10% and 40% in geopolymer materials promises better properties and the mechanism reaction is presented. Findings from the review should be used to identify potential strategies that could develop the performance of the kaolin ceramic geopolymers industry in the electronics industry, cement, and biomedical materials.

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Geopolymers based on natural perlite and kaolinic clay from Morocco: Synthesis, characterization, properties, and applications

Cited by 31 publications

References 41 publications

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Treated Kaolin Clay Incorporated with Nickel Nanoparticles for Enhanced Removal of Crystal Violet and Methyl Orange from Textile Wastewater

Geopolymer Ceramic Application: A Review on Mix Design, Properties and Reinforcement Enhancement

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