Sustainable purification of phosphoric acid contaminated with Cr(VI) by Ag/Ag3PO4 coated activated carbon/montmorillonite under UV and solar light: Materials design and photocatalytic mechanism

Abderrahim, Nesrine; Djellabi, Ridha; Amor, Hédi Ben; Fellah, Imen; Cerrato, G.; Michele, Alessandro Di; Bianchi, C.L.

doi:10.1016/j.jece.2022.107870

Cited by 24 publications

(9 citation statements)

References 42 publications

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“…Several photocatalytic mechanistic pathways have been reported regarding oxidation and reduction of pollutants on the surface of titania-carbon materials (Matos et al 2010 ; Asiltürk and Şener 2012 ; Djellabi et al 2019a , b , c , d ). Besides, a wide list of photocatalysts has been supported on the surface of lignocellulosic biomass or lignocellulosic biomass–based activated carbon such as ZnO (Raizada et al 2014 ), Ag 3 PO 4 (Abderrahim et al 2022b ), CuO (Khaled et al 2020 ), g-C 3 N 4 (Pi et al 2015 ), and MoS 2 (Ye et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Valorization of lignocellulosic biomass into sustainable materials for adsorption and photocatalytic applications in water and air remediation

Mergbi,

Galloni,

Aboagye

et al. 2023

Environ Sci Pollut Res

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An exponential rise in global pollution and industrialization has led to significant economic and environmental problems due to the insufficient application of green technology for the chemical industry and energy production. Nowadays, the scientific and environmental/industrial communities push to apply new sustainable ways and/or materials for energy/environmental applications through the so-called circular (bio)economy. One of today’s hottest topics is primarily valorizing available lignocellulosic biomass wastes into valuable materials for energy or environmentally related applications. This review aims to discuss, from both the chemistry and mechanistic points of view, the recent finding reported on the valorization of biomass wastes into valuable carbon materials. The sorption mechanisms using carbon materials prepared from biomass wastes by emphasizing the relationship between the synthesis route or/and surface modification and the retention performance were discussed towards the removal of organic and heavy metal pollutants from water or air (NOx, CO2, VOCs, SO2, and Hg0). Photocatalytic nanoparticle–coated biomass-based carbon materials have proved to be successful composites for water remediation. The review discusses and simplifies the most raised interfacial, photonic, and physical mechanisms that might take place on the surface of these composites under light irradiation. Finally, the review examines the economic benefits and circular bioeconomy and the challenges of transferring this technology to more comprehensive applications.

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Section: Introductionmentioning

confidence: 99%

Valorization of lignocellulosic biomass into sustainable materials for adsorption and photocatalytic applications in water and air remediation

Mergbi,

Galloni,

Aboagye

et al. 2023

Environ Sci Pollut Res

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“…The process also ensures the self-cleaning of the surface, allowing further adsorption of pollutants in a continuous system. Several Adsorb & Shuttle based materials have been reported towards the photocatalytic removal of inorganic and organic pollutants such as TiO 2 -montmorillonite [12] , CuO-Montmorillonite [13] , TiO 2 -lignocellulosic biomass [14] , BiPO 4 -smectite [15] , Ag 3 PO 4 -Activated carbon [16] and so on. In such type of materials, a synergistic effect combining the adsorption and photoactivity is usually obtained [17] .…”

Section: Introductionmentioning

confidence: 99%

Fast g-C3N4 sonocoated activated carbon for enhanced solar photocatalytic oxidation of organic pollutants through Adsorb & Shuttle process

Mergbi,

Aboagye,

Contreras

et al. 2023

Ultrasonics Sonochemistry

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“…However, its practical use is limited by its high cost, lack of environmental friendliness, and heavy dependence on imports, particularly in countries like Tunisia. Consequently, research has focused on finding new green and sustainable alternatives, such as generating activated carbon from agricultural residue [ 11 , 24 ] or using natural clays. Clay materials are among the abundant and inexpensive natural resources that can be used and easily modified thanks to their height exchange cationic capacity [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Removal of Organic Matter from Tunisian Industrial Phosphoric Acid by Adsorption onto Purified Natural Illite/Kaolinite Clay: Kinetics, Isothermal and Thermodynamic Studies

Oueriemi,

Ben Amor,

Hassen

et al. 2023

Materials

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This work aims to use a green, economical and efficient adsorbent to remove organic matter from Tunisian industrial wet phosphoric acid (WPA: 52% P2O5). For this purpose, a natural and abundant clay is extracted from the Douiret, Tataouine deposit in southern Tunisia. This clay is being tested for the first time as an adsorbent in WPA medium. The raw clay and purified clay are analysed using standard analytical techniques such as Fourier transform infrared spectroscopy, X-ray diffraction, and BET methods. The results show that the raw clay is a mixture of illite and kaolinite, with other mineral impurities, mainly quartz. Organic matter adsorption tests show that the purified clay exhibits greater effectiveness than raw clay. The parametric study with purified clay indicates that temperature, contact time, and clay dosage strongly influence organic matter adsorption. The highest adsorption occurs at 60 °C after 50 min, reaching 56% with 8 g of purified clay per kg of WPA. Among several recognised models, the pseudo-second-order kinetic model and the Sips isotherm model are the most suitable for modelling the experimental data. This study suggests that Douiret clay can be considered an effective, inexpensive and environmentally friendly adsorbent for eliminating organic matter in industrial phosphoric acid.

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Sustainable purification of phosphoric acid contaminated with Cr(VI) by Ag/Ag3PO4 coated activated carbon/montmorillonite under UV and solar light: Materials design and photocatalytic mechanism

Cited by 24 publications

References 42 publications

Valorization of lignocellulosic biomass into sustainable materials for adsorption and photocatalytic applications in water and air remediation

Valorization of lignocellulosic biomass into sustainable materials for adsorption and photocatalytic applications in water and air remediation

Fast g-C3N4 sonocoated activated carbon for enhanced solar photocatalytic oxidation of organic pollutants through Adsorb & Shuttle process

Removal of Organic Matter from Tunisian Industrial Phosphoric Acid by Adsorption onto Purified Natural Illite/Kaolinite Clay: Kinetics, Isothermal and Thermodynamic Studies

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