Nanotechnology Solutions for Global Water Challenges

McGuinness, Niall B.; Garvey, Mary; Whelan, Áine M.; John, Honey; Zhao, Chun; Zhang, Geshan; Dionysiou, Dionysios D.; Byrne, John; Pillai, Suresh C.

doi:10.1021/bk-2015-1206.ch018

Cited by 15 publications

(7 citation statements)

References 157 publications

(142 reference statements)

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“…Adsorption, advanced oxidation, and photocatalysis have been used to remove the organic pollutants from harming the environment and graphene-based materials have been proven to be highly efficient for wastewater remediation. 86,87 Graphene-based remediation of organic pollutants from wastewater is extensively investigated and catalogued. 76 The various combination of graphene with other metallic or nonmetallic entities create new composites or enhance the effectiveness of the existing materials for adsorption, oxidation, or catalysis of the pollutants such that they disintegrate into harmless constituents or are easily separated by techniques such as filtration, magnetic separation, or a simple solvent wash.…”

Section: Necessity Of Graphene-based Organic Effluent Eradicationmentioning

confidence: 99%

“…Some of the structures of these pollutants have been shown in Figure and their aromatic structures can be easily observed. Adsorption, advanced oxidation, and photocatalysis have been used to remove the organic pollutants from harming the environment and graphene-based materials have been proven to be highly efficient for wastewater remediation. , …”

Section: Necessity Of Graphene-based Organic Effluent Eradicationmentioning

confidence: 99%

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Graphene and Graphene Oxide-Based Composites for Removal of Organic Pollutants: A Review

2019

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Graphene, graphene oxide (GO), and their composites have been prominently utilized for wastewater purification because of their adsorption, oxidation, and catalytic properties. Graphene and GO and its composites naturally have significant pore volume, high conductivity, rich surface chemistry, and an exceptionally large aspect ratio which make it favorable for adsorption and catalysis of organic pollutants from wastewater. The sheet-like, resonating, polyaromatic π-system of graphene subsidiaries play a significant role in π–π interactions, hydrogen bonding, and/or electrostatic interactions with organic pollutants that include dyes, pharmaceutical waste, and agricultural and industrial effluents whose base structure consists of notably reactive unsaturated aromatic rings and oxygen-rich functional groups. The adsorption capacities of pollutants have been widely researched and catalogued by considering the adsorption isotherm (Langmuir, Freundlich, Temkin, DR model) they fit, the kinetic models (pseudo-first-order, pseudo-second-order, Elovich, and intraparticle diffusion) they follow, the parameters that affect the process (pH, temperature, etc.) and the reusability of the adsorbent. The photocatalytic efficiency has been anthologized with the viewpoint of the radicals being involved in photocatalysis and the light source used for the process. This review focuses on adsorption, advanced oxidation, and catalysis of various emerging organic pollutants using graphene subsidiaries, graphene-based composites, and hybrids; proves their efficacy as multifunctional materials for the expulsion of toxic aqueous phase pollutants; and presents new prospects for designing advanced water treatment strategies.

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Section: Necessity Of Graphene-based Organic Effluent Eradicationmentioning

confidence: 99%

Section: Necessity Of Graphene-based Organic Effluent Eradicationmentioning

confidence: 99%

Graphene and Graphene Oxide-Based Composites for Removal of Organic Pollutants: A Review

2019

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“…Water contamination by natural organic matter or the leakage of heavy metals is a global issue that must be addressed [89]. Impure water causes liver sicknesses, nasal ulceration, cancer, and dermatitis [90].…”

Section: Removal Of Ni (Ii)mentioning

confidence: 99%

Synthetic Approach to Rice Waste-Derived Carbon-Based Nanomaterials and Their Applications

et al. 2021

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The utilization of biomass waste to produce valuable products has extraordinary advantages as far as both the economy and climate are concerned, which have become particularly significant lately. The large-scale manufacturing of agricultural waste, mainly rice by-products (rice husk, rice straw, and rice bran), empowers them to be the most broadly examined biomasses as they contain lignin, cellulose, and hemicellulose. Rice waste was first used to incorporate bulk materials, while the manufacturing of versatile nanostructures from rice waste at low cost has been developed in recent years and attracts much consideration nowadays. Carbon-based nanomaterials including graphene, carbon nanotubes, carbon dots, fullerenes, and carbon nanofibers have tremendous potential in climate and energy-related applications. Various methods have been reported to synthesize high-value carbon nanomaterials, but the use of green technology for the synthesis of carbon nanomaterials is most common nowadays because of the abundant availability of the starting precursor, non-toxicity, low fabrication cost, ease of modification, and eco-friendly nature; therefore, reusing low-value biomass waste for the processing of renewable materials to fabricate high-value products is remarkable. Carbon nanomaterials derived from rice waste have broad applications in various disciplines owing to their distinctive physicochemical, electrical, optical, mechanical, thermal, and enhanced biocompatibility properties. The main objective of this review and basic criteria of selecting examples and explanations is to highlight the green routes for the synthesis of carbon nanomaterials—i.e., graphene, carbon nanotubes, and carbon dots—from rice biomass waste, and their extensive applications in biomedical research (bio-imaging), environmental (water remediation), and energy-related (electrodes for supercapacitors, Li-ion battery, fuel cells, and solar cells) applications. This review summarizes recent advancements, challenges, and trends for rice waste obtained from renewable resources for utilization in the fabrication of versatile carbon-based nanomaterials.

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“…[10][11][12] Nano-adsorbents of different nature and high specific surface area demonstrate good potential in the field of sewage treatment. [12][13][14] However, its practicability is significantly restricted by its arduous filtration-recovery process and decreased activity due to aggregation. [15][16][17][18] Zeolites in shaped forms (granules, extrudates, pellets, beads), which combine convenient handling with efficient adsorption and facile separation, are highly desirable for decontamination of wastewater.…”

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confidence: 99%

Binder-free preparation of ZSM-5@silica beads and their use for organic pollutant removal

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Qin

et al. 2020

Inorg. Chem. Front.

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Nanotechnology Solutions for Global Water Challenges

Cited by 15 publications

References 157 publications

Graphene and Graphene Oxide-Based Composites for Removal of Organic Pollutants: A Review

Graphene and Graphene Oxide-Based Composites for Removal of Organic Pollutants: A Review

Synthetic Approach to Rice Waste-Derived Carbon-Based Nanomaterials and Their Applications

Binder-free preparation of ZSM-5@silica beads and their use for organic pollutant removal

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