Polymer nanocomposite membranes and their application for flow catalysis and photocatalytic degradation of organic pollutants

Rajlaxmi,; Gupta, Neelam; Behere, Ravi Prakash; Layek, Rama K.; Kuila, Biplab Kumar

doi:10.1016/j.mtchem.2021.100600

Cited by 29 publications

(10 citation statements)

References 200 publications

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“…For the application in a continuous process for p -NP degradation or upcycling, these metal-support composite materials still need to be immobilized to be used in a flow-based process. , The use of porous polymer membranes as catalytic flow-through reactors is one of the most promising approaches due to their high pore surface-to-pore volume ratio and ease of fabrication. Catalytic nanoparticles are often immobilized onto the surface of membranes by coating, but this method is limited due to frequently occurring particle leaching and pore blocking. , Another possibility is to incorporate catalyst particles in polymer membranes via film casting cum phase separation, which generates composite or mixed-matrix membranes . In this approach, the particles are directly added to the polymer-based casting solution, which is followed by film casting and a solidification step.…”

Section: Introductionmentioning

confidence: 99%

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Fischer

Hesaraki

Volz

et al. 2023

ACS Appl. Nano Mater.

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Herein, we successfully fabricated porous nanocomposite membranes decorated with high loadings of nickel nanoparticles (25–45 wt %) by using chelating additives (sodium dodecyl sulfate (SDS) and Fumion) for the film casting cum phase separation approach. These additives decreased the nickel agglomeration and promoted the presentation of particles at the pore surface of the final membranes, leading to increased water permeances (450 to 1200–2400 L/m2 hbar) and porosities (56% to 70–78%) in comparison to a nanocomposite membrane made without additives. The hydrophobic ionomer Fumion, incorporated into the polyethersulfone matrix during solidification, further allowed us to tune the membrane hydrophobicity. We discovered that the same nickel nanoparticles exhibited a 5× increased H2 generation rate during the catalytic hydrogen formation from ammonia borane when presented in a membrane with a higher water contact angle (85° compared to 60°). We could attribute this improvement to the lower capillary pressure in more hydrophobic pores, which facilitates the release of H2 bubbles. The nanocomposite membranes were further employed as flow-through reactors for the catalytic hydrogenation of p-nitrophenol (p-NP) in the presence of ammonia borane. Membranes with an additive-directed nickel nanoparticle presentation at the pore surface demonstrated 6 to 7× higher p-NP turnover frequencies (TOFs). We also observed that the formation of hydrogen gas from ammonia borane results in a permeance decrease during the flow-through p-NP conversion. However, this effect was mitigated in more hydrophilic membranes with an anisotropic pore structure.

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Section: Introductionmentioning

confidence: 99%

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Fischer

Hesaraki

Volz

et al. 2023

ACS Appl. Nano Mater.

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“…Newly, inorganic/organic polymeric hybrid nanocomposites have attracted substantial consideration owing to their higher surface area, extended surface to volume ratio, and advanced adsorption efficiency over other photocatalysts. − In general, hybrid materials comprising polymer and nanomaterials having sizes in the range from ∼1 to 100 nm are called polymeric nanocomposites. In polymeric nanocomposites, the polymers act as matrices for immobilization of nanomaterials, and the nanomaterials are embedded over them to achieve unique properties for photocatalysis which come from the synergistic mechanisms of both components . The nonpolymeric nanocomposites are hybrid mixtures of different inorganic nanoparticles that remain in diverse phases.…”

Section: Introductionmentioning

confidence: 99%

Review of Polymeric Nanocomposites for Photocatalytic Wastewater Treatment

Dey,

Manna,

Pradhan

et al. 2024

ACS Appl. Nano Mater.

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The continuous upsurge in water pollution caused by harmful organic and inorganic contaminants has led to a shortage of nontoxic, clean water and effective waste management. Therefore, it is crucial to establish an eco-friendly approach using sustainable, biodegradable, and recyclable materials to treat the wastewater. In this regard, photocatalysts are highly effective for mitigating water pollution to a certain degree through an energy-efficient and greener approach. Among various photocatalysts, polymeric nanocomposites have attracted considerable consideration owing to their several advantageous characteristics like higher surface area, extended surface to volume ratio, advanced adsorption efficiency, and application for the degradation of harmful contaminants. In this comprehensive review, we have focused on the recent synthetic approaches for development of polymeric nanocomposites. Also, the application of these polymeric nanocomposites for the degradation of harmful contaminants has also been extensively summarized. This article further extensively discusses the process of photocatalysis to provide a clear understanding to the reader.

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“…A significant amount of work related to the development of membranes for liquid separation processes have been published in the past 10 years, indicating the importance of this topic to industries and communities. Membrane modification through the introduction of nanomaterials is one of the most extensively reviewed topics in view of the effectiveness of this strategy in tailoring the physico-chemical properties of membranes [ 37 , 38 , 39 , 40 , 41 ]. Significant efforts have been made in developing nanocomposite membranes using metal oxides including TiO 2 , which is well-known for its low cost, abundancy, high chemical stability, and nontoxicity to the environment and humans.…”

Section: Introductionmentioning

confidence: 99%

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

et al. 2023

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Membrane technology has become increasingly popular and important for separation processes in industries, as well as for desalination and wastewater treatment. Over the last decade, the merger of nanotechnology and membrane technology in the development of nanocomposite membranes has emerged as a rapidly expanding research area. The key motivation driving the development of nanocomposite membranes is the pursuit of high-performance liquid separation membranes that can address the bottlenecks of conventionally used polymeric membranes. Nanostructured materials in the form of zero to three-dimensions exhibit unique dimension-dependent morphology and topology that have triggered considerable attention in various fields. While the surface hydrophilicity, antibacterial, and photocatalytic properties of TiO2 are particularly attractive for liquid separation membranes, the geometry-dependent properties of the nanocomposite membrane can be further fine-tuned by selecting the nanostructures with the right dimension. This review aims to provide an overview and comments on the state-of-the-art modifications of liquid separation membrane using TiO2 as a classical example of multidimensional nanomaterials. The performances of TiO2-incorporated nanocomposite membranes are discussed with attention placed on the special features rendered by their structures and dimensions. The innovations and breakthroughs made in the synthesis and modifications of structure-controlled TiO2 and its composites have enabled fascinating and advantageous properties for the development of high-performance nanocomposite membranes for liquid separation.

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Polymer nanocomposite membranes and their application for flow catalysis and photocatalytic degradation of organic pollutants

Cited by 29 publications

References 200 publications

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Review of Polymeric Nanocomposites for Photocatalytic Wastewater Treatment

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

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Polymer nanocomposite membranes and their application for flow catalysis and photocatalytic degradation of organic pollutants

Cited by 29 publications

References 200 publications

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H2 Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H2 Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Review of Polymeric Nanocomposites for Photocatalytic Wastewater Treatment

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

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Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane

Highly Nickel Loaded Nanocomposite Membranes for Catalytic H₂ Production and Hydrogenation of p-Nitrophenol Using Ammonia Borane