Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

Azaryouh, Leila; Abara, Hajar; Kassab, Zineb; Ablouh, El‐Houssaine; Aboulkas, A.; Achaby, Mounir El; Draoui, Khalid

doi:10.1039/d2ra08287j

Cited by 8 publications

(8 citation statements)

References 56 publications

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“…Interestingly, biomass-based materials exhibit intriguing versatility, as they can be derived from a diverse array of sources and harnessed to produce a range of biopolymers with distinct properties and performances. [46][47][48] The catalytic graphitization process is notably inuenced by both the sources of biomass and the specic treatment conditions it undergoes, as highlighted in the survey ndings. Table 2 provides a comprehensive overview of various precursors and biomass-based materials utilized in the production of graphitic nanomaterials through diverse methods.…”

Section: Impact Of Precursors and Synthesis Methods On Catalytic Grap...mentioning

confidence: 99%

Probing the evolution in catalytic graphitization of biomass-based materials for enduring energetic applications

Mennani,

Ait Benhamou,

Mekkaoui

et al. 2024

J. Mater. Chem. A

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Section: Impact Of Precursors and Synthesis Methods On Catalytic Grap...mentioning

confidence: 99%

Probing the evolution in catalytic graphitization of biomass-based materials for enduring energetic applications

Mennani,

Ait Benhamou,

Mekkaoui

et al. 2024

J. Mater. Chem. A

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“…On the other hand, PSO is often considered more versatile for a range of adsorption systems, as it incorporates the concept of chemisorption, wherein the adsorbate forms a chemical bond with the adsorbent surface. 19 The Langmuir model asserts uniform energies of adsorption on the surface and the absence of transmigration of the adsorbate within the surface plane. In contrast, the Freundlich expression, being an exponential equation, assumes that as the adsorbate concentration increases, the concentration of adsorbate on the adsorbent surface also increases.…”

Section: Kinetics and Equilibrium Studiesmentioning

confidence: 99%

“…Therefore, to better understand the surface charge properties of PT, the ζ potential was measured at different pH levels. 19 The zero-point charge (ZPC) is a distinctive property of a given adsorbent, indicating the pH level at which its surface achieves electrical neutrality. 47,68 The results, illustrated in Figure 5a, reveal that the examined material attains a neutral charge at pH 5, pinpointing its zeropoint charge.…”

Section: Materials Characterization 311 Morphologicalmentioning

confidence: 99%

“…18 Among these materials, biomass-based adsorbents have garnered increased attention due to their widespread availability, low cost, and biodegradability. 9,19 Notably, tannin, recognized as a biopolymer, emerges as a particularly abundant natural substance, comparable in prevalence to cellulose 20−23 and lignin 24,25 in various biological materials. Its widespread occurrence underscores its significance and multifaceted presence within the intricate structure of natural ecosystems, emphasizing its integral role alongside other essential biopolymers.…”

Section: Introductionmentioning

confidence: 99%

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Phosphorylating Tannin in Urea System: A Simple Approach for Enhanced Methylene Blue Removal from Aqueous Media

Azaryouh,

Ait Benhamou,

Aziz

et al. 2024

Biomacromolecules

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Tannin, after lignin, is one of the most abundant sources of natural aromatic biomolecules. It has been used and chemically modified during the past few decades to create novel biobased materials. This work intended to functionalize for the first time quebracho Tannin (T) through a simple phosphorylation process in a urea system. The phosphorylation of tannin was studied by Fourier transform infrared spectroscopy (FTIR), NMR, inductively coupled plasma optical emission spectroscopy (ICP-OES), and X-ray fluorescence spectrometry (XRF), while further characterization was performed by scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX) and thermogravimetric analysis (TGA) to investigate the morphology, composition, structure, and thermal degradation of the phosphorylated material. Results indicated the occurrence of phosphorylation, suggesting the insertion of phosphate-containing groups into the tannin structure, revealing a high content of phosphate for modified tannin (PT). This elevated phosphorus content serves as evidence for the successful incorporation of phosphate groups through the functionalization process. The corresponding PT and T were employed as adsorbents for methylene blue (MB) removal from aqueous solutions. The results revealed that the Langmuir isotherm model effectively represents the adsorption isotherms. Additionally, the pseudo-second-order model indicates that chemisorption predominantly controls the adsorption mechanism. This finding also supports the fact that the introduced phosphate groups via the phosphorylation process significantly contributed to the improved adsorption capacity. Under neutral pH conditions and at room temperature, the material achieved an impressive adsorption capacity of 339.26 mg•g −1 in about 2 h.

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“…Lignocellulosic biomass stands out as the most promising source of renewable carbon on Earth. , Lignin, a natural polymer, ranks as the second-largest biomass resource globally, representing the most abundant polymer in aromatics and serving as the primary supplier of soil organic matter . Furthermore, its inherently complex aromatic structure imparts various properties, including UV absorption, slow biodegradability, as well as antibacterial and amphipathic activities .…”

Section: Introductionmentioning

confidence: 99%

Humic Acid-Functionalized Lignin-Based Coatings Regulate Nutrient Release and Promote Wheat Productivity and Grain Quality

El Bouchtaoui,

Ablouh,

Mhada

et al. 2024

ACS Appl. Mater. Interfaces

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The rational application of fertilizers is crucial for achieving high crop yields and ensuring global food security. The use of biopolymers for slow-release fertilizers (SRFs) development has emerged as a game-changer and environmentally sustainable pathway to enhance crop yields by optimizing plant growth phases. Herein, with a renewed focus on circular bioeconomy, a novel functionalized lignin-based coating material (FLGe) was developed for the sustained release of nutrients. This innovative approach involved the extraction and sustainable functionalization of lignin through a solvent-free esterification reaction with humic acid�an organic compound widely recognized for its biostimulant properties in agriculture. The primary objective was to fortify the hydration barrier of lignin by reducing the number of its free hydroxyl groups, thereby enhancing release control, while simultaneously harnessing the agronomic benefits offered by humic acid. After confirming the synthesis of functionalized lignin (FLGe) through 13 C NMR analysis, it was integrated at varying proportions into either a cellulosic or starch matrix. This resulted in the creation of five distinct formulations, which were then utilized as coatings for diammonium phosphate (DAP) fertilizer. Experimental findings revealed an improved morphology and hardness (almost 3-fold) of DAP fertilizer granules after coating along with a positive impact on the soil's water retention capacity (7%). Nutrient leaching in soil was monitored for 100 days and a substantial reduction of nutrients leaching up to 80% was successfully achieved using coated DAP fertilizer. Furthermore, to get a fuller picture of their efficiency, a pot trial was performed using two different soil textures and demonstrated that the application of FLGe-based SRFs significantly enhanced the physiological and agronomic parameters of wheat, including leaf evolution and root architecture, resulting in an almost 50% increase in grain yield and improved quality. The results proved the potential of lignin functionalization to advance agricultural sustainability and foster a robust bioeconomy aligning with the premise "from the soil to the soil".

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Hybrid carbonaceous adsorbents based on clay and cellulose for cadmium recovery from aqueous solution

Abstract: The current work describes the synthesis of carbonaceous composites via pyrolysis, based on CMF, extracted from Alfa fibers, and Moroccan clay ghassoul (Gh), for potential use in heavy metal removal from wastewater.

Cited by 8 publications

References 56 publications

Probing the evolution in catalytic graphitization of biomass-based materials for enduring energetic applications

Probing the evolution in catalytic graphitization of biomass-based materials for enduring energetic applications

Phosphorylating Tannin in Urea System: A Simple Approach for Enhanced Methylene Blue Removal from Aqueous Media

Humic Acid-Functionalized Lignin-Based Coatings Regulate Nutrient Release and Promote Wheat Productivity and Grain Quality

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