Adsorptive removal of organic pollutants from water by carbon fiber aerogel derived from bacterial cellulose

Talari, Mahla; Tabrizi, Nooshin Salman; Babaeipour, Valiollah; Halek, F.

doi:10.1007/s10971-021-05708-6

Cited by 11 publications

(3 citation statements)

References 57 publications

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“…BC consistency was carried out as indicated by Balea et al [ 32 ] by calculating the dry mass content. The measurement of the pH zero charge of the membranes (pH zc ) was performed as established by Hosseini Talari et al [ 33 ] to evaluate the pH value where the surface of the BC suffers a charge neutralization. Basically, the BC pellicles are placed in distilled water whose pH has been increased or reduced with NaOH or HCl solutions, respectively, and after a certain contact time, the pellicle is removed from the solution, and the pH is measured again.…”

Section: Methodsmentioning

confidence: 99%

Ni(II) and Pb(II) Removal Using Bacterial Cellulose Membranes

Ojembarrena,

García,

Merayo

et al. 2023

Polymers

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Bacterial cellulose (BC) is a highly crystalline nanosized material with a high number of active groups. This study focuses on the synthesis of BC membranes through fermentation, their characterization and application to remove Ni(II) and Pb(II) from wastewater by adsorption under different conditions. Four-day-grown BC membranes form three-dimensional nanofibril networks with a pH of 6.3 and a high cationic demand (52.5 μeq·g−1). The pseudo-second-order kinetic model and the Sips isotherm model best describe the adsorption of both metals. The intraparticle diffusion model of Ni(II) revealed a three-step mechanism of adsorption-plateau-adsorption, while Pb(II) adsorption followed a typical reducing-slope trend up to saturation. The highest removal of Ni(II) and Pb(II) was obtained at pH 4 with a BC dosage of 400 mg·L−1. The maximum adsorption capacities were 28.18 mg·g−1 and 8.49 mg·g−1 for Ni(II) and Pb(II), respectively, involving the total coverage of the material active sites. Thermodynamically, Ni(II) adsorption was exothermic, and Pb(II) was endothermic. The obtained values of sorption heat, activation and Gibbs’ energy depicted a physisorption process. Ni(II) removal mechanism was ruled by crystallization on the metals adsorbed on the BC active groups, while Pb(II) was driven by the adsorption process, as shown by TEM images of the spent material.

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Section: Methodsmentioning

confidence: 99%

Ni(II) and Pb(II) Removal Using Bacterial Cellulose Membranes

Ojembarrena,

García,

Merayo

et al. 2023

Polymers

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“…[47] Carbonized BC shows great potential in conductive materials, [87] oxygen reduction catalysts, [88] sensors, [89] supercapacitors, [90] ion batteries, [91] and water treatment. [92] Figure 8. Structural modification strategies of 3D network BC.…”

Section: D Nanofiber Network Structure Characteristicsmentioning

confidence: 99%

Insights into Hierarchical Structure–Property–Application Relationships of Advanced Bacterial Cellulose Materials

Chen

et al. 2023

Adv Funct Materials

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Bacterial cellulose (BC) is an environmentally friendly biomaterial that is widely investigated because it possesses a unique hierarchical nanofiber network structure as well as extraordinary performance. In this review, the formation of the BC hierarchical nanofiber network structure from the perspective of biosynthesis is illustrated based on its basic chemical and crystal structure. Moreover, the design and processing of BC-based advanced materials through biosynthesis, physical, and/or chemical modification are also reviewed. The intrinsic characteristics of BC, derived from its hierarchical structure, are analyzed to understand its structure-property-application relationships. The applications of advanced BC-based materials are reviewed, such as high-strength structural materials utilizing the properties of nanofibers, energy conversion and storage, bioelectronic interfaces, environmental remediation, and thermal management applications utilizing the ion transport properties and 3D network structures of these materials. In addition, the authors also offer their opinions and potential future research directions for sustainably developing BC-based materials.

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“…Aerogels prepared from cellulose-rich waste are biodegradable, easy to functionalize for different uses, and are inexpensive due to the abundance of raw materials [ 61 ]. Cellulose aerogels have a wide area of potential applications such as particle filters, particle trappers, catalyst supports, and heat insulators [ 62 , 63 ] and have been evaluated for their capability to remove various pollutants from an aqueous medium [ 61 , 64 , 65 ]. Additionally, the application of cellulose aerogels for oil absorption applications has also been investigated [ 66 ].…”

Section: Introduction and Scopementioning

confidence: 99%

Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies

Anžlovar

Žagar

2022

Nanomaterials

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Cellulose is the most abundant natural polymer and deserves the special attention of the scientific community because it represents a sustainable source of carbon and plays an important role as a sustainable energent for replacing crude oil, coal, and natural gas in the future. Intense research and studies over the past few decades on cellulose structures have mainly focused on cellulose as a biomass for exploitation as an alternative energent or as a reinforcing material in polymer matrices. However, studies on cellulose structures have revealed more diverse potential applications by exploiting the functionalities of cellulose such as biomedical materials, biomimetic optical materials, bio-inspired mechanically adaptive materials, selective nanostructured membranes, and as a growth template for inorganic nanostructures. This article comprehensively reviews the potential of cellulose structures as a support, biotemplate, and growing vector in the formation of various complex hybrid hierarchical inorganic nanostructures with a wide scope of applications. We focus on the preparation of inorganic nanostructures by exploiting the unique properties and performances of cellulose structures. The advantages, physicochemical properties, and chemical modifications of the cellulose structures are comparatively discussed from the aspect of materials development and processing. Finally, the perspective and potential applications of cellulose-based bioinspired hierarchical functional nanomaterials in the future are outlined.

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Adsorptive removal of organic pollutants from water by carbon fiber aerogel derived from bacterial cellulose

Cited by 11 publications

References 57 publications

Ni(II) and Pb(II) Removal Using Bacterial Cellulose Membranes

Ni(II) and Pb(II) Removal Using Bacterial Cellulose Membranes

Insights into Hierarchical Structure–Property–Application Relationships of Advanced Bacterial Cellulose Materials

Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies

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