Hierarchical zeolite based on multiporous zeolite A and bacterial cellulose: An efficient adsorbent of Pb2+

Bessa, Raquel A.; França, Antonia Mayza de Morais; Pereira, André Luís Sousa; Alexandre, Natália P.; Pérez-Page, María; Holmes, Stuart M.; Nascimento, Ronaldo F.; Rosa, Morsyleide de Freitas; Anderson, Michael W.; Loiola, Adonay R.

doi:10.1016/j.micromeso.2020.110752

Cited by 13 publications

(5 citation statements)

References 80 publications

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“…By combining more than one strategy, it is possible to create macroporous monoliths with specific shapes and functional surfaces formed by the zeolite covering. This approach offers a powerful tool for tailoring the properties of zeolites to meet a wide range of industrial and scientific needs (12,31).…”

Section: Natural Modified and Synthetic Zeolitesmentioning

confidence: 99%

“…Noteworthiness, the toxic metals are classified among the most concerning compounds in the environment (12), hence to meet increasingly stringent environmental quality and clean life standards, they must be removed from the polluted streams (13). There are various treatment processes available in the literature for metal-polluted waste streams, such as coagulation, chemical precipitation, oxidation of heavy metals, solvent extraction, membrane filtration, electrolytic processes (14), ion exchange (11), precipitation (4), reverse osmosis (15), clotting disambiguation (4), flotation, flocculation (16), electrochemical treatment technologies (12), adsorption and photocatalytic degradation of heavy metals, among these techniques and methods, adsorption as a cost-effective technology, offers flexibility and facile operation and design (14) are frequently in use due it's efficient in removing organic and inorganic contaminants from aqueous environments (17). On the other hand, activated carbon is widely acknowledged as the primary adsorbent for various adsorption processes due to its remarkable properties such as high surface area and superior adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

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Differences in Heavy Metals Adsorption on Natural, Modified, and Synthetic Zeolites-A Review

Mudaber

Batur

2023

Journal of the Turkish Chemical Society Section A: Chemistry

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This paper presents a comprehensive study of the differences in heavy metal adsorption on natural, modified, and synthetic zeolites. Heavy metal treatment and adsorption are critical issues in today's modern world, and despite advancements in technology, they remain a global challenge. Industrial effluents are a major source of heavy metal pollutants, which have a severe impact on human health and the environment. Therefore, removing heavy metals from contaminated water and wastewater is a necessity. Adsorption is the most commonly used method for removing heavy metals from the environment due to its cost-effectiveness, design, and performance. Among various adsorbents, zeolites are currently considered a suitable method due to their cost-effectiveness, simplicity, and the varying ion-exchange capacity of natural zeolites worldwide for cations such as ammonium and heavy metal ions. The findings of this research could provide useful information for developing efficient and cost-effective methods for the removal of heavy metals from water and wastewater, thus addressing a critical global issue. The outcomes of this research contribute to promoting a green and healthy environment.

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Section: Natural Modified and Synthetic Zeolitesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differences in Heavy Metals Adsorption on Natural, Modified, and Synthetic Zeolites-A Review

Mudaber

Batur

2023

Journal of the Turkish Chemical Society Section A: Chemistry

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“…Bacterial cellulose (BC), a biosynthesized cellulose, is a prospective biosorbent for Pb(II) elimination owing to its three-dimensional cross-linked network structure, relatively large surface area, and rich hydroxyl groups in its chain [12][13][14]. The adsorption performance of BC mainly depends on the hydroxyl activity of O( 2 structure [15].…”

Section: Introductionmentioning

confidence: 99%

Pb(II) Adsorption Properties of a Three-Dimensional Porous Bacterial Cellulose/Graphene Oxide Composite Hydrogel Subjected to Ultrasonic Treatment

Zhang,

Xu,

Zhang

et al. 2024

Materials

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A three-dimensional porous bacterial cellulose/graphene oxide (BC/GO) composite hydrogel (BC/GO) was synthesized with multi-layer graphene oxide (GO) as the modifier and bacterial cellulose as the skeleton via an ultrasonic shaking process to absorb lead ions effectively. The characteristics of BC/GO were investigated through TEM, SEM, FT-IR, NMR and Zeta potential experiments. Compared to bacterial cellulose, the ultrasonic method and the carboxyl groups stemming from GO helped to enhance the availability of O(3)H of BC, in addition to the looser three-dimensional structure and enriched oxygen-containing groups, leading to a significantly higher adsorption capacity for Pb(II). In this paper, the adsorption behavior of BC/GO is influenced by the GO concentration, adsorption time, and initial concentration. The highest adsorption capacity for Pb(II) on BC/GO found in this study was 224.5 mg/g. The findings implied that the pseudo-second-order model explained the BC/GO adsorption dynamics and that the data of its adsorption isotherm fit the Freundlich model. Because of the looser three-dimensional structure, the complexation of carboxyl groups, and the enhanced availability of O(3)H, bacterial cellulose exhibited a much better adsorption capacity.

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“…In contrast to conventional wastewater treatment technologies, adsorption is considered to be an inexpensive and simple technique whose effectiveness depends mainly on the applied adsorbent [2]. In addition to the commonly used adsorbents (activated carbon, clay minerals, polymers, and resins), zeolites are increasingly being investigated and applied in wastewater treatment [3] due to their excellent adsorption and ion exchange properties, high mechanical strength and thermal stability, as well as their low costs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach

Radovanovic,

Dikić,

Štulović

et al. 2023

Metall Mater Eng

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Low-cost and easily available natural zeolite is a promising adsorbent for metal ions removal in wastewater treatment. The possibility of using zeolitic tuff from Serbia in the form of Na-enriched natural zeolite (Na-Z) for the adsorption of Pb2+, Zn2+, Cu2+, and Ni2+ ions from wastewater was investigated in the presented paper. The research included Na-Z characterization and determination of adsorption kinetics in individual ion adsorption tests using non-linear pseudo-first-order (PFO), pseudo-second-order (PSO) and mixed-order (MO) kinetic models. The results indicate that the adsorption processes of metal ions on Na-Z are complex processes dominated by multiple rate-limiting mechanisms and best defined by the MO model. The mechanisms of ion diffusion and adsorption to active sites are equally represented in the Pb2+ ions adsorption process. The mechanism of ion diffusion is more pronounced in the Zn2+ ions adsorption process, while in the case of the adsorption of Cu2+ and Ni2+ ions adsorption on the active sites is the main kinetic mechanism. Within the MO model, the PFO rate (external/internal diffusion) and the PSO rate (adsorption on the active sites) were calculated and results were applied to a multicomponent wastewater sample in order to determine and explain the adsorption efficiency in wastewater treatment. The results show that the rate of adsorption of individual metal ions and the efficiency of ion removal from a multicomponent wastewater sample are influenced by several factors including the radius of the hydrated ion and the free energy of hydration. The achieved removal of metal ions by Na-Z is Pb2+ (89%) > Cu2+ (72%) > Zn2+ (61%) > Ni2+ (58%) and defines Na-enriched natural zeolite as an effective adsorbent in wastewater treatment.

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Hierarchical zeolite based on multiporous zeolite A and bacterial cellulose: An efficient adsorbent of Pb2+

Cited by 13 publications

References 80 publications

Differences in Heavy Metals Adsorption on Natural, Modified, and Synthetic Zeolites-A Review

Differences in Heavy Metals Adsorption on Natural, Modified, and Synthetic Zeolites-A Review

Pb(II) Adsorption Properties of a Three-Dimensional Porous Bacterial Cellulose/Graphene Oxide Composite Hydrogel Subjected to Ultrasonic Treatment

Sorption of Pb2+, Zn2+, Cu2+ and Ni2+ Ions on Na-enriched Natural Zeolite for Wastewater Treatment Process: A Kinetic Approach

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