Sulfated lignocellulose nanofibril based composite aerogel towards adsorption–photocatalytic removal of tetracycline

Zou, Xiangyuan; Yao, Liangyi; Zhou, S. P.; Chen, Guoning; Wang, Shuangfei; Liu, Xiuyu; Jiang, Yan

doi:10.1016/j.carbpol.2022.119970

Cited by 27 publications

(13 citation statements)

References 61 publications

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“…Similarly, it is possible to know different modification routes on the monomers that facilitate applications in hydrophobicity, porosity, mechanical resistance, and biodegradation. Other biopolymers of industrial interest in biopolymeric aerogels include cotton [ 21 ] and lignin [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Biopolymeric Fibrous Aerogels: The Sustainable Alternative for Water Remediation

et al. 2023

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The increment in water pollution due to the massive development in the industrial sector is a worldwide concern due to its impact on the environment and human health. Therefore, the development of new and sustainable alternatives for water remediation is needed. In this context, aerogels present high porosity, low density, and a remarkable adsorption capacity, making them candidates for remediation applications demonstrating high efficiency in removing pollutants from the air, soil, and water. Specifically, polymer-based aerogels could be modified in their high surface area to integrate functional groups, decrease their hydrophilicity, or increase their lipophilicity, among other variations, expanding and enhancing their efficiency as adsorbents for the removal of various pollutants in water. The aerogels based on natural polymers such as cellulose, chitosan, or alginate processed by different techniques presented high adsorption capacities, efficacy in oil/water separation and dye removal, and excellent recyclability after several cycles. Although there are different reviews based on aerogels, this work gives an overview of just the natural biopolymers employed to elaborate aerogels as an eco-friendly and renewable alternative. In addition, here we show the synthesis methods and applications in water cleaning from pollutants such as dyes, oil, and pharmaceuticals, providing novel information for the future development of biopolymeric-based aerogel.

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Section: Introductionmentioning

confidence: 99%

Biopolymeric Fibrous Aerogels: The Sustainable Alternative for Water Remediation

et al. 2023

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“…32 Recently, Zou et al used a deep eutectic solvent to extract sulfated lignocellulose nanofibrils from bagasse and realized the construction of a flexible aerogel with a compressive modulus of 1.4 ± 0.02 MPa and a stress of 182.0 ± 5.21 kPa. 33 However, because of the serious light scattering due to the uneven network structure formed by sugarcane cellulose and the coarser bundle of cellulose, the currently reported bagasse aerogels exhibit poor transparency to visible light, therefore hardly used in the field of glazing windows. Herein, for the first time, highly transparent bagasse aerogel films formed via controllable extraction of flexible cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs) from bagasse have been reported.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Kumar et al synthesized an aerogel with an ultralight (0.012–0.108 g/ cm 3 ) mass and low thermal conductivity (0.026–0.044 W m –1 K –1 ) using sugarcane cellulose extracted from bagasse cross-linked with polyvinyl alcohol and glyoxal . Recently, Zou et al used a deep eutectic solvent to extract sulfated lignocellulose nanofibrils from bagasse and realized the construction of a flexible aerogel with a compressive modulus of 1.4 ± 0.02 MPa and a stress of 182.0 ± 5.21 kPa . However, because of the serious light scattering due to the uneven network structure formed by sugarcane cellulose and the coarser bundle of cellulose, the currently reported bagasse aerogels exhibit poor transparency to visible light, therefore hardly used in the field of glazing windows.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Transparent Bagasse Aerogels for Thermal Regulation Glazing

Zhao

Xie

et al. 2023

ACS Sustainable Chem. Eng.

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The preparation of functional composite aerogels for building envelopes, especially for building glazing as the key climate moderator, has been widely investigated to improve the sustainability of buildings. Unfortunately, the prohibitive costs, mechanical brittleness, and optical opacity limit the current development and application of composite aerogels. Herein, using the controllable extraction of cellulose from bagasse, a low-cost (less than $3 per square foot), flexible (>15% elastic deformation under 0.02 MPa) bagasse aerogel film with high visible-light transparency (>80% transmittance of visible light) and superinsulation (0.0158 W m–1 K–1) was developed. These properties were achieved by constructing a uniform three-dimensional network structure using elastic polysiloxane and a mixture of cellulose nanofibers and cellulose nanocrystals in an equal proportion. This cellulosic aerogel film would have the latent potential of application in highly glazed modern buildings to reduce the energy loss from windows.

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“…1,6,7 However, each method had its own advantages and disadvantages, so the combination of multiple techniques is a more promising direction for sewage treatment. 8,9 Kaolin is an excellent traditional clay adsorbent material owing to its abundant reserves, wide distribution, low price and outstanding adsorption capacity. 10 However, the adsorption capacity of natural kaolin is relatively low, not meeting the needs of modern industry and commerce.…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, various techniques have emerged to remove TC in water, including adsorption, biological technology and advanced oxidation 1,6,7 . However, each method had its own advantages and disadvantages, so the combination of multiple techniques is a more promising direction for sewage treatment 8,9 …”

Section: Introductionmentioning

confidence: 99%

Synthesis of a novel MMK/β‐CD‐A material and its tetracycline removal efficiency

Guo

Liu

Jin

et al. 2023

J of Chemical Tech & Biotech

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Background: As one of the modal antibiotics in life, the abuse of tetracycline (TC) caused great risks to the ecological environment and health. Cost-effective removal method of TC in the medical wastewater was a developmental research direction with great potential.Results: In this work, a novel material, modified kaolin/β-cyclodextrin (β-CD) coated A (A is a special oxidant made from our laboratory, which is mainly composed of potassium ferrate) was synthesized and characterized. Meanwhile, the removal efficiencies and influencing factors of TC in novel material activation reaction systems were systematically studied. The specific surface area of modified kaolin (MMK) can reach up to 431.82 m 2 /g after acid and calcination modification. The results of SEM, TEM, XRD, and FT-IR showed the significant increase in specific surface area of MMK was the complete destruction of kaolin structure and the leaching of aluminum. β-CD was selected to coat A to attenuate the rapid release of A in water. The optimal coat molar ratio of β-CD and A was 10: 1 (β-CD:A). MMK/β-CD-A was used to treat the simulated TC wastewater, the removal efficiency was 95.6 % within 90 min when the concentration of TC was 0.22 mmol/L. The removal mechanism of TC with MMK/β-CD-A was the adsorption effect from MMK and the oxidation effect from β-CD-A. Conclusion:This work could provide useful information for developing a simple and effective technology to treat TC in medical wastewater.

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Sulfated lignocellulose nanofibril based composite aerogel towards adsorption–photocatalytic removal of tetracycline

Cited by 27 publications

References 61 publications

Biopolymeric Fibrous Aerogels: The Sustainable Alternative for Water Remediation

Biopolymeric Fibrous Aerogels: The Sustainable Alternative for Water Remediation

Flexible and Transparent Bagasse Aerogels for Thermal Regulation Glazing

Synthesis of a novel MMK/β‐CD‐A material and its tetracycline removal efficiency

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