Low-pressure carbon nanotube membrane with different surface properties for the removal of organic dyes and PPCPs

Dong, Mengchan; Guo, Jin; Liu, Qiushan; Zeng, Jia; Xiong, Xiang‐Yuan; Gai, Xiaoli; Wang, Yufei; Wu, Yaochen

doi:10.1016/j.jece.2023.110131

Cited by 12 publications

(2 citation statements)

References 63 publications

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“…Among these techniques, adsorption offers the advantages of high removal efficiency, simplicity of adsorbent fabrication, and design/operation flexibility [4]. Many currently known adsorbents for dye removal comprise smart carbon-based nanomaterials such as carbon nanotubes [5] and graphene [6]. However, as these materials are commonly costly, toxic, and unstable, cheaper, less toxic, and stable alternatives are highly sought after.…”

Section: Introductionmentioning

confidence: 99%

Construction of 3D-Printed Sodium Alginate/Chitosan/Halloysite Nanotube Composites as Adsorbents of Methylene Blue

Luo,

Ji,

Xia

et al. 2024

Molecules

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In this study, sodium alginate/chitosan/halloysite nanotube composites were prepared by three-dimensional printing and characterized in terms of morphology, viscosity, thermal properties, and methylene blue (MB) adsorption performance. The high specific surface area and extensively microporous structure of these composites allowed for effective MB removal from wastewater; specifically, a removal efficiency of 80% was obtained after a 60 min treatment at an adsorbent loading of 1 g L−1 and an MB concentration of 80 mg L−1, while the maximum MB adsorption capacity equaled 376.3 mg g−1. Adsorption kinetics and isotherms were well described by quasi-second-order and Langmuir models, respectively. The composites largely retained their adsorption performance after five adsorption–desorption cycles and were concluded to hold great promise for MB removal from wastewater.

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Section: Introductionmentioning

confidence: 99%

Construction of 3D-Printed Sodium Alginate/Chitosan/Halloysite Nanotube Composites as Adsorbents of Methylene Blue

Luo,

Ji,

Xia

et al. 2024

Molecules

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“…Many studies have demonstrated that predeposition of micro-or nanomaterials, including carbon based [15,16] and metal based (e.g., Ag, Au, and CuO) [17][18][19], on the surfaces of ceramic membranes can regulate topography and hydrophobic and hydrophilic behavior, as well as antifouling/biofouling performance. Among these materials applied, carbon-based materials attracted increasing attention in controlling membrane fouling owing to their abundance on Earth, good absorption ability, and great resistance toward acids and bases.…”

Section: Introductionmentioning

confidence: 99%

Copper Nanoparticles Coupled with Fine-Powdered Active Carbon-Modified Ceramic Membranes for Improved Filtration Performance in a Membrane Bioreactor

Qiu,

Gao,

Shao

et al. 2023

Water

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Membrane fouling is a key factor limiting the application of a membrane bioreactor (MBR), and membrane-surface modification holds the potential to control membrane fouling and solves this problem. In the research, novel nanocomposite membranes were designed and fabricated using antimicrobial copper nanoparticles (CuNPs) coupled with powdered active carbon (PAC) to mitigate membrane fouling. The successful coating was confirmed by SEM, XRD, and FTIR analysis. Compared with a pristine membrane, the functionalization of CuNPs and PAC improved the hydrophilicity of the modified membrane but led to a lower permeate flux. The result of antimicrobial adhesion experiments showed that the modified M-CuOC displayed high antibacterial activity with the bacteria count decreased by 72%. In MBR operation, the modified M-CuOC leads to the removal efficiency of chemical oxygen demand (COD) increasing to 93%, with better filtration performance under a lower TMP rise. The fouling-resistance analysis demonstrated that, although the intrinsic membrane resistance of modified M-CuOC slightly increased, the reversible and irreversible fouling resistances obviously decreased by 45% and 90%. Moreover, the membrane flux recovery efficiency of the modified M-CuOC also increased by 35%. Overall, these results indicated that, in addition to an improvement in antifouling performance, the functionalization of CuNPs and PAC also enhanced the membrane flux recovery efficiency, revealing a good antifouling potential in a practical application.

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Single‐Walled Carbon Nanotube‐Based Optical Nano/Biosensors for Biomedical Applications: Role in Bioimaging, Disease Diagnosis, and Biomarkers Detection

Acharya,

Patil,

Dutta

et al. 2024

Adv Materials Technologies

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The convergence of advanced nanotechnology with disease diagnosis has ushered in a transformative era in healthcare, empowering early and accurate detection of diseases and paving the way for timely interventions, improved treatment outcomes, and enhanced patient well‐being. The development of novel materials is frequently the impetus behind significant advancements in sensor technology. Among them, single‐walled carbon nanotubes (SWCNTSs) have emerged as promising nanomaterials for developing biosensors. Their unique optical, electrical, and biocompatibility properties make them promising candidates for enhancing the sensitivity and real‐time monitoring capabilities of biosensors, as well as for enabling various bioimaging techniques. Recent studies have demonstrated the utility of SWCNTS‐based biosensors in the real‐time monitoring of biological analytes, such as nitric oxide and hydrogen peroxide (H2O2), with potential implications for disease understanding and therapeutic response assessment. Moreover, SWCNTSs have shown promise in bioimaging applications, including fluorescence, Raman spectroscopy, and photoluminescence imaging of biological samples. This article delves into the core principles, design strategies, and operational mechanisms that underpin SWCNTS‐bioimaging techniques‐based biosensors. It emphasizes on their unique properties and versatile functionalization of carbon nanotubes, laying the foundation for their integration into biosensor platforms and applications aimed at diagnosing a wide spectrum of diseases including infectious diseases, cancer, neurological disorders, and metabolic conditions.

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Low-pressure carbon nanotube membrane with different surface properties for the removal of organic dyes and PPCPs

Cited by 12 publications

References 63 publications

Construction of 3D-Printed Sodium Alginate/Chitosan/Halloysite Nanotube Composites as Adsorbents of Methylene Blue

Construction of 3D-Printed Sodium Alginate/Chitosan/Halloysite Nanotube Composites as Adsorbents of Methylene Blue

Copper Nanoparticles Coupled with Fine-Powdered Active Carbon-Modified Ceramic Membranes for Improved Filtration Performance in a Membrane Bioreactor

Single‐Walled Carbon Nanotube‐Based Optical Nano/Biosensors for Biomedical Applications: Role in Bioimaging, Disease Diagnosis, and Biomarkers Detection

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