scholarly journals Two-Dimensional Nanomaterials for the Removal of Pharmaceuticals from Wastewater: A Critical Review

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2160
Author(s):  
Sergio González-Poggini ◽  
Andreas Rosenkranz ◽  
Melanie Colet-Lagrille
Keyword(s):  
Large Scale ◽  
Chemical Interaction ◽  
High Surface ◽  
Synthesis Methods ◽  
Scale Production ◽  
Two Dimensional ◽  
Surface Areas ◽  
Large Scale Production ◽  
Bibliographic Search ◽  
Future Work

The removal of pharmaceuticals from wastewater is critical due to their considerable risk on ecosystems and human health. Additionally, they are resistant to conventional chemical and biological remediation methods. Two-dimensional nanomaterials are a promising approach to face this challenge due to their combination of high surface areas, high electrical conductivities, and partially optical transparency. This review discusses the state-of-the-art concerning their use as adsorbents, oxidation catalysts or photocatalysts, and electrochemical catalysts for water treatment purposes. The bibliographic search bases upon academic databases including articles published until August 2021. Regarding adsorption, high removal capacities (>200 mg g−1) and short equilibrium times (<30 min) are reported for molybdenum disulfide, metal-organic frameworks, MXenes, and graphene oxide/magnetite nanocomposites, attributed to a strong adsorbate-adsorbent chemical interaction. Concerning photocatalysis, MXenes and carbon nitride heterostructures show enhanced charge carriers separation, favoring the generation of reactive oxygen species to degrade most pharmaceuticals. Peroxymonosulfate activation via pure or photo-assisted catalytic oxidation is promising to completely degrade many compounds in less than 30 min. Future work should be focused on the exploration of greener synthesis methods, regeneration, and recycling at the end-of-life of two-dimensional materials towards their successful large-scale production and application.

Large-scale production of two-dimensional nanosheets

2012 ◽  
Vol 22 (27) ◽  
pp. 13494 ◽  
Author(s):  
Yagang Yao ◽  
Ziyin Lin ◽  
Zhuo Li ◽  
Xiaojuan Song ◽  
Kyoung-Sik Moon ◽  
...  
Keyword(s):  
Large Scale ◽  
Scale Production ◽  
Two Dimensional ◽  
Large Scale Production

scholarly journals Mechanochemical synthesis of metal oxide nanoparticles

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Takuya Tsuzuki
Keyword(s):  
Metal Oxide ◽  
Mechanochemical Synthesis ◽  
Large Scale ◽  
Reaction Pathway ◽  
Metal Oxide Nanoparticles ◽  
Energy Storage And Conversion ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Scale Production ◽  
Large Scale Production

AbstractIn the last decades, mechanochemical processing has emerged as a sustainable method for the large-scale production of a variety of nanomaterials. In particular, mechanochemical synthesis can afford well-dispersed metal-oxide nanoparticles, which are used in wide-ranging applications including energy storage and conversion, environmental monitoring, or biomedical uses. This article reviews recent progress in the mechanochemical synthesis of metal-oxide nanoparticles, explores reaction mechanisms, and contrasts the influence of chosen process parameters on the properties of end products. The role of choice of reaction pathway, as well as advantages and limitations compared to other synthesis methods are discussed. A prospect for future development of this synthetic method is proposed.

scholarly journals Large scale production of novel g-C3N4 micro strings with high surface area and versatile photodegradation ability

CrystEngComm ◽  
2014 ◽  
Vol 16 (9) ◽  
pp. 1825 ◽  
Author(s):  
Muhammad Tahir ◽  
Chuanbao Cao ◽  
Faheem K. Butt ◽  
Sajid Butt ◽  
Faryal Idrees ◽  
...  
Keyword(s):  
Surface Area ◽  
Large Scale ◽  
High Surface ◽  
High Surface Area ◽  
Scale Production ◽  
Large Scale Production

scholarly journals Mussel inspired ZIF8 microcarriers: a new approach for large-scale production of stem cells

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20118-20128 ◽  
Author(s):  
Mahsa Asadniaye Fardjahromi ◽  
Amir Razmjou ◽  
Graham Vesey ◽  
Fatemeh Ejeian ◽  
Balarka Banerjee ◽  
...  
Keyword(s):  
Cell Culture ◽  
Surface Roughness ◽  
Large Scale ◽  
Cell Attachment ◽  
High Surface ◽  
High Surface Area ◽  
3D Cell Culture ◽  
Scale Production ◽  
New Approach ◽  
Large Scale Production

Mussel inspired ZIF8 microcarriers with high surface area, biocompatibility, and nanoscale surface roughness are applied to enhance mesenchymal stem cell attachment and proliferation in 3D cell culture.

scholarly journals Toward high production of graphene flakes – a review on recent developments in their synthesis methods and scalability

2018 ◽  
Vol 6 (31) ◽  
pp. 15010-15026 ◽  
Author(s):  
Muhammad Izhar Kairi ◽  
Sebastian Dayou ◽  
Nurul Izni Kairi ◽  
Suriani Abu Bakar ◽  
Brigitte Vigolo ◽  
...  
Keyword(s):  
Large Scale ◽  
Synthesis Methods ◽  
Scale Production ◽  
Large Scale Production ◽  
Graphene Flakes ◽  
Recent Developments ◽  
High Production ◽  
Cost Of Production ◽  
The Cost

Graphene flakes, one of the most popular form of graphene, can be used for many applications. Their synthesis is in the path to reach the large-scale production if the cost of production is further improved.

scholarly journals Fabrication of Nanosize ZnO and Zn1−xFexO Powder for Infrared Absorption by Flame Aerosol Synthesis

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 904
Author(s):  
Hui Tian ◽  
Lei Wang ◽  
Taisheng Yang ◽  
Zili Zhang
Keyword(s):  
Infrared Absorption ◽  
Large Scale ◽  
Low Cost ◽  
High Yield ◽  
Synthesis Methods ◽  
Scale Production ◽  
Absorption Properties ◽  
Aerosol Synthesis ◽  
Large Scale Production ◽  
Significant Difference

In this study, nanosized ZnO and Zn1−xFexO powders were synthesized using the flame aerosol synthesis (FAS) method. The microstructure of the ZnO powder shows a significant difference with different precursor concentrations. By adding Fe to the precursor, nanosized Zn1−xFexO powder (x = 0~0.1) can be easily fabricated. The phase formation, microstructure, and infrared absorption properties were systematically investigated by XRD, SEM, TEM, and IR. With the substitution of Fe into the Zn site, lattice distortion occurred, resulting in excellent infrared absorption properties. Compared to other conventional synthesis methods, the FAS method has the advantages of high yield, high crystallinity, and low cost; furthermore, nanosized powder is easily obtained. The FAS method is believed to be one of the best choices for the large-scale production of ZnO and Zn1−xFexO powders.

scholarly journals Review—Synthesis and Electrochemical Applications of Molybdenum Carbide: Recent Progress and Perspectives

2022 ◽  
Author(s):  
Sanjay Upadhyay ◽  
Om Prakash Pandey
Keyword(s):  
Electrochemical Performance ◽  
Large Scale ◽  
High Surface ◽  
High Surface Area ◽  
Cost Effective ◽  
Research Progress ◽  
Energy Storage And Conversion ◽  
Synthesis Methods ◽  
Scale Production ◽  
Electrochemical Applications

Abstract In this review, we summarize the latest research progress on Mo2C based materials for various electrochemical applications. It starts with discussing the different synthesis methods and the tactics for modifying the physicochemical characteristics of Mo2C. In addition, the variables that influence the morphology and electrochemical performance of Mo2C have been explored. The synthesis methods are examined based on their tricks, benefits, and drawbacks, including solid-gas, solid-solid, solid-liquid, and some other processes (chemical vapor deposition, Sonochemical, microwave-assisted, plasma, etc.). Methods that are safe, cost-effective, environmentally friendly, and suited for large-scale production of Mo2C are given special consideration. The solid-solid reaction is found to be a facile and cost-effective method to synthesize Mo2C structures having high surface area and small particle size. Also, the various electrochemical applications of Mo2C are reviewed. Mo2C is an extremely active and durable electrocatalyst mainly for hydrogen evolution reaction (HER). The electrochemical parameters such as activity, stability, etc., are examined and described in detail. The possible ways to improve the electrochemical performance of Mo2C are discussed. Finally, the difficulties in developing Mo2C nanostructures that are suited for energy storage and conversion applications are discussed.

scholarly journals Industrial development of calcium phosphate particle synthesis from Seawater could be implemented

2018 ◽  
Keyword(s):  
Calcium Phosphate ◽  
Industrial Development ◽  
Large Scale ◽  
Spherical Particles ◽  
Scale Production ◽  
Porous Structures ◽  
Surface Areas ◽  
Large Scale Production ◽  
Calcium Phosphate Particles ◽  
Template Free

Nanomaterials have been widely studied because of their big surface areas and porous structures. As bioactive material, calcium phosphate particles have widely applied in biomedical fields. Syntheses of calcium phosphate spherical particles are presently relied on spraying and templates such as surfactants and biomolecules. However, template-free methods become more necessary due to template residue problem. In absence of templates, there are few reported studies recently. However, there remain challenges to industrialize development. The most prominent difficulties are to achieve large-scale production with lost cost.

scholarly journals Growth, coalescence, and etching of two-dimensional overlayers on metals modulated by near-surface Ar nanobubbles

Nano Research ◽  
2021 ◽  
Author(s):  
Wei Wei ◽  
Jiaqi Pan ◽  
Haiping Lin ◽  
Chanan Euaruksakul ◽  
Zhiyun Li ◽  
...  
Keyword(s):  
Large Scale ◽  
2D Materials ◽  
Growth Front ◽  
Scale Production ◽  
Two Dimensional ◽  
Near Surface ◽  
Substrate Interaction ◽  
Large Scale Production ◽  
Surface Catalysis ◽  
Surface Measurements

AbstractThe synthesis of high-quality ultrathin overlayers is critically dependent on the surface structure of substrates, especially involving the overlayer-substrate interaction. By using in situ surface measurements, we demonstrate that the overlayer-substrate interaction can be tuned by doping near-surface Ar nanobubbles. The interfacial coupling strength significantly decreases with near-surface Ar nanobubbles, accompanying by an “anisotropic to isotropic” growth transformation. On the substrate containing near-surface Ar, the growth front crosses entire surface atomic steps in both uphill and downhill directions with no difference, and thus, the morphology of the two-dimensional (2D) overlayer exhibits a round-shape. Especially, the round-shaped 2D overlayers coalesce seamlessly with a growth acceleration in the approaching direction, which is barely observed in the synthesis of 2D materials. This can be attributed to the immigration lifetime and diffusion rate of growth species, which depends on the overlayer-substrate interaction and the surface catalysis. Furthermore, the “round to hexagon” morphological transition is achieved by etching-regrowth, revealing the inherent growth kinetics under quasi-freestanding conditions. These findings provide a novel promising way to modulate the growth, coalescence, and etching dynamics of 2D materials on solid surfaces by adjusting the strength of overlayer-substrate interaction, which contributes to optimization of large-scale production of 2D material crystals.

scholarly journals Aerogel-Based TiO2 Stable Inks for Direct Inkjet Printing of Nanostructured Layers

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Aline M. Barreiro ◽  
Geneviève K. Pinheiro ◽  
Bruno N. Wesling ◽  
Daliana Müller ◽  
Letícia T. Scarabelot ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Large Scale ◽  
High Surface ◽  
High Surface Area ◽  
Scale Production ◽  
Electrical Measurements ◽  
Stable Suspension ◽  
Large Scale Production ◽  
Nanostructured Layers ◽  
Triton X

Inkjet printing presents a high potential for cost reduction of electronic devices manufacturing due to the capacity to deposit materials with high precision, less material waste, and large-scale production through the roll-to-roll printing processes. In this work, a nanostructured TiO2 ink was developed using TiO2 aerogel and an alkaline aqueous solution, which resulted in a very stable suspension. A high-intensity ultrasonic mixer was used to fragment and disperse TiO2 aerogels producing suspensions with particles smaller than 200 nm, which are suitable for the inkjet printing process. For the development of the ink, the viscosity and surface tension were adjusted by using glycerol and a surfactant (Triton X-100). The influence of those components on the properties of the ink was evaluated for different concentrations. After formulation of the inks, the printing parameters were adjusted to optimize the process. Films with high surface area and less than 100 nm grain size were successfully produced. Electrical measurements revealed a resistive-like behavior with the sheet resistance increasing with number of printed layers.

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