Design of a Prototype for Water Desalination Plant using Flexible, Low-Cost Titanium Dioxide Nanoparticles

2021 ◽  
Author(s):  
Jean Pierre Arce Misajel ◽  
Sario Angel Chamorro Quijano ◽  
Dominick Marco Cruz Esteban ◽  
Steve Robert Torres Rojas ◽  
Deyby Huamanchahua ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Water Desalination ◽  
Desalination Plant

Hybrid Inorganic/Organic Self-Assembled Clays Nanocomposites for Roll to Roll Fabrication in Photovoltaics

2009 ◽  
Vol 1196 ◽  
Author(s):  
Peter Njagwa Kariuki ◽  
Jessica Gendron ◽  
Christopher Matthew Madl ◽  
Jasper Chiguma ◽  
Michael E Hagerman ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Indium Tin Oxide ◽  
Self Assembly ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Flexible Substrate ◽  
Roll To Roll ◽  
Organic Photovoltaic Materials ◽  
Self Assembled ◽  
Electrically Conducting Polymers

AbstractWe have been developing a new approach to layered hybrid (inorganic/organic) photovoltaic materials for fabrication by Roll-to-Roll (R2R) manufacturing. In this report, we combine the low cost and processability of organic electrically conducting polymers with the efficiency of dye sensitized titanium dioxide, semi-conductor quantum dots (CdSe) self-assembled on layered clay materials (Laponite) onto indium tin oxide coated flexible substrate polyethylene terephthalate (PET) substrates. We have shown electron transfer, guest-guest and host-guest interactions, charge separation, spectral line broadening, and quenching of fluorescence signals which indicate electronic coupling of the dye [Ru(bpy)3]2+ on a CdSe nanocrystal and titanium dioxide nanoparticles. Scanning electron microscopy and atomic force microscopy demonstrate successful nanoparticle formation and thin film self-assembly, as well as surface morphology and polymer thickness.

scholarly journals Effect of Antioxidant and Antimicrobial Coating based on Whey Protein Nanofibrils with TiO2 Nanotubes on the Quality and Shelf Life of Chilled Meat

2019 ◽  
Vol 20 (5) ◽  
pp. 1184 ◽  
Author(s):  
Zhibiao Feng ◽  
Lele Li ◽  
Qiannan Wang ◽  
Guangxin Wu ◽  
Chunhong Liu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Titanium Dioxide ◽  
Shelf Life ◽  
Whey Protein ◽  
Antimicrobial Agents ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Edible Films ◽  
Edible Coatings ◽  
Reduce Weight Loss

Whey protein nanofibrils (WPNFs) can be used in edible films and coatings (EFCs) because of its favorable functional properties, which rely on its well-ordered β-sheet structures, high hydrophobicity, homogeneous structure, and antioxidant activity. In the present study, WPNF-based edible coatings with glycerol (Gly) as plastic and titanium dioxide nanotubes (TNTs) as antimicrobial agents were studied. TNTs not only showed greater antibacterial activity than titanium dioxide nanoparticles (TNPs), but also increased interactions with WPNFs. The WPNF/TNT film had a smooth and continuous surface and was homogeneous with good mechanical properties. WPNF/TNT edible coatings (ECs) can help improve lipid peroxidation and antioxidant activity, limit microbial growth, reduce weight loss, and extend the shelf life of chilled beef. Given that the WPNF/TNT film components are low cost and show high antioxidant and antimicrobial activity, these optimized films have potential applications for various food products, including raw and chilled meat.

Low-cost and green dispersive solid phase extraction of hydrophilic compounds using titanium dioxide nanoparticles

2019 ◽  
Vol 145 ◽  
pp. 784-790 ◽  
Author(s):  
Szymon Dziomba ◽  
Aleksandra Pawelec ◽  
Krzesimir Ciura ◽  
Marta Dolegowska ◽  
Anna Klimowska ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Hydrophilic Compounds

scholarly journals Application of TiO2 Nano-particles to incorporate Self- Cleaning in Polyester Fabric with the Help of Binder and to Study Changes in Physical Properties

2020 ◽  
Vol 06 (9S) ◽  
pp. 142-146
Author(s):  
Sonal Rani, Ritika Sharma and Neetu Rani
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Polyester Fabric ◽  
Anatase Tio2 ◽  
Nano Particles ◽  
Polyester Fabrics ◽  
Self Cleaning

The study aims at application of Nano scaled titanium dioxide nanoparticles with photocatalytic activity. The titanium dioxide nanoparticles were applied by a dip-pad–dry-cure process with the help of binders to textile materials for producing photocatalytic self-cleaning thin films. The study was focused on the application and characterization of titanium dioxide. The photocatalytic activity of TiO2 nanoparticles was studied against Methyl Orange degradation test in solar box test instrument by dissolving TiO2 nano-composites in an aqueous solution at low temperature. Polyester is most widely used synthetic fibre in textile and clothing. In this study, Anatase TiO2 nanoparticles are dispersed at room temperature via Sonication and treated polyester fabrics exhibit significant photocatalytic self-cleaning properties of degradation of coffee stains. The mechanical properties like bending length, breaking strength, air permeability and durability of TiO2 treated polyester fabrics were accessed. The study discovered that anatase TiO2 based self-cleaning system shows potential systems for self-cleaning textiles having high potential in commercialization being environmentally affable, energy and water saving, low cost as of reduced laundry cycles of the finished textiles.

scholarly journals Improvement of PMMA Dental Matrix Performance by Addition of Titanium Dioxide Nanoparticles and Clay Nanotubes

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2027
Author(s):  
Mariafrancesca Cascione ◽  
Valeria De Matteis ◽  
Paolo Pellegrino ◽  
Giovanni Albanese ◽  
Maria Luisa De De Giorgi ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Oral Cavity ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
Chemical Properties ◽  
Physical Parameters ◽  
Dependent Manner ◽  
Beneficial Effects ◽  
Prosthetic Implants ◽  
Clay Nanotubes

Over the last decades, several materials have been proposed for the fabrication of dental and mandibular prosthetic implants. Today, the poly(methyl-methacrylate) (PMMA) resin is the most spread material, due to its ease of processing, low cost, aesthetic properties, low weight, biocompatibility, and biostability in the oral cavity. However, the porous surface (which favors the adhesion of microorganisms) and the weak mechanical properties (which lead to wear or fracture) are the major concerns. The inclusion of engineered nanomaterials in the acrylic matrix could improve the performances of PMMA. In this study, we added two different kind of nanomaterials, namely titanium dioxide nanoparticles (TiO2NPs) and halloysite clay nanotubes (HNTs) at two concentrations (1% and 3% w/w) in PMMA. Then, we assessed the effect of nanomaterials inclusion by the evaluation of specific physical parameters: Young’s modulus, roughness, and wettability. In addition, we investigated the potential beneficial effects regarding the Candida albicans (C. albicans) colonization reduction, the most common yeast responsible of several infections in oral cavity. Our experimental results showed an improvement of PMMA performance, following the addition of TiO2NPs and HNTs, in a dose dependent manner. In particular, the presence of TiO2NPs in the methacrylate matrix induced a greater increase in PMMA stiffness respect to HNTs addition. On the other hand, HNTs reduced the rate of C. albicans colonization more significantly than TiO2NPs. The results obtained are of great interest for the improvement of PMMA physico-chemical properties, in view of its possible application in clinical dentistry.

scholarly journals Enhanced adsorption capacity of porous titanium dioxide nanoparticles synthetized in alkaline sol

2020 ◽  
Vol 126 (12) ◽  
Author(s):  
Luigi Scrimieri ◽  
Luciano Velardi ◽  
Antonio Serra ◽  
Daniela Manno ◽  
Francesca Ferrari ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Adsorption Capacity ◽  
Industrial Development ◽  
Titanium Dioxide Nanoparticles ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Porous Titanium ◽  
Electron Microscopies ◽  
Enhanced Adsorption

Abstract In recent years, the exploitation of natural resources and industrial development have led to the production of harmful pollutants. Much of these contaminants end up in water resources, reducing the availability of drinking water. Therefore, it is necessary to find remedies to this situation. Solutions could be the adsorption or the degradation through photocatalysis of these compounds. A good candidate for this task is titanium dioxide (TiO2), due to its non-toxicity, stability and low cost. In this work, we propose a novel synthesis of TiO2 nanoparticles (NPs), with high adsorption capacity, produced at low temperature in alkaline environment. Adsorption tests were conducted using methylene blue and diclofenac as model pollutants. Moreover, the obtained NPs have been characterized through Raman spectroscopy, Scanning and Transmission electron microscopies and with thermogravimetric analysis. The results showed a porous structure with a high surface area, able to efficiently adsorb large amounts of dye from the aqueous solution. These properties make the obtained TiO2 powders suitable for applications devoted to the adsorption and recovery of harmful compounds. Graphic abstract

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

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