Design of Cost Effective Epoxy + Scrap Rubber Based Composites Reinforced with Titanium Dioxide and Alumina Fibers

2018 ◽  
pp. 59-66
Author(s):  
A. B. Irez ◽  
I. Miskioglu ◽  
E. Bayraktar
Keyword(s):  
Titanium Dioxide ◽  
Cost Effective ◽  
Alumina Fibers

One-pot synthesis of a TiO2–CdS nano-heterostructure assembly with enhanced photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34942-34948 ◽  
Author(s):  
Sayantan Mazumdar ◽  
Aninda J. Bhattacharyya
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Cadmium Sulfide ◽  
Self Assembly ◽  
Cost Effective ◽  
One Pot ◽  
One Pot Synthesis ◽  
Cost Effective Method

An unprecedented morphology of a titanium dioxide (TiO2) and cadmium sulfide (CdS) self-assembly obtained using a ‘truly’ one-pot and highly cost effective method with a multi-gram scale yield is reported here.

Removal of organic dye compounds in water and wastewater samples based on covalent organic frameworks -titanium dioxide before analysis by UV-VIS spectroscopy

2021 ◽  
Vol 4 (01) ◽  
pp. 58-67
Author(s):  
Aida Bahadori Bahadori ◽  
Mehdi Ranjbar Corresponding
Keyword(s):  
Titanium Dioxide ◽  
Carbon Nanostructures ◽  
Solid Phase ◽  
Cost Effective ◽  
Combustion Method ◽  
Organic Dye ◽  
Coefficient Of Determination ◽  
Covalent Organic Frameworks ◽  
Methylene Orange ◽  
Vis Spectroscopy

A simple and rapid microwave-assisted combustion method was developed to synthesize homogenous carbon nanostructures (HCNS). This research presents a new and novel nanocomposite structures for removal of methylene red (2-(4- Dimethylaminophenylazo)benzoic acid), methylene orange (4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt) and methylene blue (3,7-bis(Dimethylamino)phenazathionium chloride)with semi degradation-adsorption solid phase extraction (SDA-SPE) procedure before determination by UV-VIS spectroscopy. A covalent organic frameworks (COFs) with high purity were synthesized and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicated that the self-assembled carbon nanostructures (COFs) synthesized with the cost-effective method which was used as a novel adsorbent for adsorption of dyes after semi-degradation of methylene red, orange and blue (1-5 mg L-1) as an organic dye by titanium dioxide (TiO2) nanoparticales in presence of UV radiation. Based on results, the COFs/TiO2 has good agreement with the Langmuir adsorption isotherm model with favorite coefficient of determination (R2= 0.9989). The recovery of dye removal based on semi-degradation/adsorption of COFs/TiO2 and adsorption of COFs were obtained 98.7% and 48.3%, respectively (RSD less than 5%). The method was validated by spiking dye to real samples.

A cost-effective quick-making strategy for visible light-responsive titanium dioxide

2019 ◽  
Vol 251 ◽  
pp. 206-209 ◽  
Author(s):  
Lujie Zhang ◽  
Zhengxin Liu ◽  
Jue Zhang ◽  
Jing Fang
Keyword(s):  
Titanium Dioxide ◽  
Visible Light ◽  
Cost Effective

scholarly journals Photocatalytic and Antibacterial Potency of Titanium Dioxide Nanoparticles: A Cost-Effective and Environmentally Friendly Media for Treatment of Air and Wastewater

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 709
Author(s):  
Zohaib Razzaq ◽  
Awais Khalid ◽  
Pervaiz Ahmad ◽  
Muhammad Farooq ◽  
Mayeen Uddin Khandaker ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photoelectron Spectroscopy ◽  
Environmental Remediation ◽  
Titanium Dioxide Nanoparticles ◽  
Environmentally Friendly ◽  
Cost Effective ◽  
Bromophenol Blue ◽  
Bacterial Strains ◽  
Tio2 Nps ◽  
X Ray

Titanium dioxide nanoparticles (TiO2-NPs) were synthesized via a facile hydrothermal method. X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FTIR), and Raman spectroscopy were used to study the structure, morphology, chemical composition, and functional group attached to the as-synthesized TiO2-NPs. These NPs were then used to test their efficacy against various microbes and their potency as effective catalysts. TiO2-NPs are found to have the maximum antibacterial activity against Gram-negative bacterial strains rather than Gram-positive bacteria. The photocatalytic activity of the TiO2-NPs was investigated for the photodegradation of 10 ppm bromophenol blue (BPB) dye by using 0.01 g–0.05 g of catalyst. TiO2-NPs exhibited the removal of 95% BPB, respectively, within 180 min. The TiO2-NPs’ antibacterial and catalytic properties suggest that these may be used in environmental remediation as a cost-effective and environmentally friendly wastewater and air treatment material.

scholarly journals Biosynthesis, Antimicrobial and Cytotoxic Effects of Titanium Dioxide Nanoparticles Using Vigna unguiculata Seeds

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Ankita Chatterjee ◽  
M. Ajantha ◽  
Aishwarya Talekar ◽  
N. Revathyr ◽  
Jayanthi Abraham
Keyword(s):  
Titanium Dioxide ◽  
Metal Nanoparticles ◽  
Vigna Unguiculata ◽  
Titanium Dioxide Nanoparticles ◽  
Cost Effective ◽  
Biological Synthesis ◽  
Osteosarcoma Cell ◽  
Cowpea Seeds ◽  
Clinical Pathogens ◽  
Physical And Chemical

Background: Physical and chemical methods of synthesizing metal nanoparticles have been on the focus for the last decade as it has been broadly exploited by researchers. Biological synthesis of metal nanoparticles was found to be easy and economical. The wide applications of titanium dioxide in various fields have drawn attention for biosynthesis of titanium dioxide nanoparticles. Cowpea seeds are easily available and rich in protein as well as high in antioxidant which enhances the good characteristics of the nanoparticles synthesized using it. Methods: In the present investigation the nanoparticles are synthesized using Vigna unguiculata (cowpea) seeds extract. 0.1 mM titanium dioxide was mixed with cowpea seeds extract for the preparation of the nanoparticles. The characterization of nanoparticles was done by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Antibacterial activity of the titanium dioxide nanoparticles was checked against clinical pathogens followed by antioxidant study and cytotoxicity assay by 2, 2- diphenyl-1-picryl-hydrazyl-hydrate (DPPH) assay and [3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide] (MTT) assay respectively. Results: The oval shaped biologically synthesized nanoparticles were effective against most of the clinical pathogens. The observance of peak at 418 cm-1 confirms the synthesis of titanium dioxide nanoparticles. The titanium nanoparticles were highly antioxidant in nature and cytotoxic on MG63 osteosarcoma cell lines. Conclusion: The biological method of preparation of nanoparticles proved to be easy and cost effective. The nanoparticles synthesized can be further used in research for anticancer treatments

Photocatalytic degradation of acetaminophen from water solutions via thin films part I: preparation, characteriation, and analysis of titanium dioxide thin films

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sunil Rawal ◽  
Sabrina H. Buer ◽  
Wayne Hawkins ◽  
Jonathan Robby Sanders ◽  
Pedro E. Arce
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Cost Effective ◽  
Degradation Process ◽  
X Ray Diffraction ◽  
Thin Film Coatings ◽  
Glass Slides ◽  
Titanium Dioxide Thin Films

Abstract The utilization of titanium dioxide (TiO2) photocatalysis for water and air purification is a frequently used method due to TiO2 having properties making it chemically inert, highly cost-effective, abundant, non-toxic, and environmentally-friendly. In an effort to increase the efficiency of the degradation process, an in-depth understanding of the effects of the structure and number of thin film coatings is needed. Transparent, anatase-form titanium dioxide thin films were prepared via the sol-gel method and deposited onto microscopic glass slides using a novel spraying technique, with coatings ranging from 1 to 10. Characterization of the TiO2 thin film coated slides was performed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The contribution shows that the coating technique is efficient in covering important areas of the surface and that it is suitable for a multiple coating layers thin film. The SEM imagines show that the surface of the slides increase coverage as the number of layers increases. This is potentially suitable for a mechanized spraying approach to upscaling the production of thin films for advanced oxidation applications.

scholarly journals Breast Cancer Inhibition by Biosynthesized Titanium Dioxide Nanoparticles Is Comparable to Free Doxorubicin but Appeared Safer in BALB/c Mice

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3155
Author(s):  
Haroon Iqbal ◽  
Anam Razzaq ◽  
Bushra Uzair ◽  
Noor Ul Ain ◽  
Shamaila Sajjad ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Titanium Dioxide ◽  
Ex Vivo ◽  
Cost Effective ◽  
Chemotherapeutic Agents ◽  
Ros Generation ◽  
Mouse Tumor ◽  
Tio2 Nps ◽  
Vis Spectroscopy

Cancer remains a global health burden prompting affordable, target-oriented, and safe chemotherapeutic agents to reduce its incidence rate worldwide. In this study, a rapid, cost-effective, and green synthesis of titanium dioxide (TiO2) nanoparticles (NPs) has been carried out; Ex vivo and in vivo evaluation of their safety and anti-tumor efficacy compared to doxorubicin (DOX), a highly efficient breast anti-cancer agent but limited by severe cardiotoxicity in many patients. Thereby, TiO2 NPs were eco-friendly synthetized using aqueous leaf extract of the tropical medicinal shrub Zanthoxylum armatum as a reducing agent. Butanol was used as a unique template. TiO2 NPs were physically characterized by ultraviolet-visible (UV–Vis) spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), scanning electron microscope (SEM), X-ray powder diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) as routine state-of-the art techniques. The synthesized TiO2 NPs were then evaluated for their cytotoxicity (by MTT, FACS, and oxidative stress assays) in 4T1 breast tumor cells, and their hemocompatibility (by hemolysis assay). In vivo anti-tumor efficacy and safety of the TiO2 NPs were further assessed using subcutaneous 4T1 breast BALB/c mouse tumor model. The greenly prepared TiO2 NPs were small, spherical, and crystalline in nature. Interestingly, they were hemocompatible and elicited a strong DOX-like concentration-dependent cytotoxicity-induced apoptosis both ex vivo and in vivo (with a noticeable tumor volume reduction). The underlying molecular mechanism was, at least partially, mediated through reactive oxygen species (ROS) generation (lipid peroxidation). Unlike DOX (P < 0.05), it is important to mention that no cardiotoxicity or altered body weight were observed in both the TiO2 NPs-treated tumor-bearing mouse group and the PBS-treated mouse group (P > 0.05). Taken together, Z. armatum-derived TiO2 NPs are cost-effective, more efficient, and safer than DOX. The present findings shall prompt clinical trials using green TiO2 NPs, at least as a possible alternative modality to DOX for effective breast cancer therapy.

scholarly journals Fabrication and Characterization of Superhydrophobic Graphene/Titanium Dioxide Nanoparticles Composite

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Xun Hui Wu ◽  
Yoon Yee Then
Keyword(s):  
Contact Angle ◽  
Titanium Dioxide ◽  
Water Contact Angle ◽  
Medical Devices ◽  
Superhydrophobic Surface ◽  
Cost Effective ◽  
Tio2 Coating ◽  
Hybrid Nanoparticles ◽  
Poly Lactic Acid ◽  
Water Contact

Materials with superhydrophobic surfaces have received vast attention in various industries due to their valuable properties, such as their self-cleaning and antifouling effects. These promising superhydrophobic properties are taken into high priority, particularly for medical devices and applications. The development of an ideal superhydrophobic surface is a challenging task and is constantly progressing. Various strategies have been introduced; however, a minority of them are cost-effective. This work presents a facile fabrication of the superhydrophobic surface by using graphene and titanium dioxide (TiO2) nanoparticles. The graphene and TiO2 hybrid nanoparticles are dip-coated on a biodegradable thermoplastic poly(lactic acid) (PLA) substrate. The thermoplastic PLA is approved by the Food and Drug Administration (FDA), and is widely utilized in medical devices. The graphene/TiO2 coating is substantiated to transform the hydrophilic PLA film into superhydrophobic biomaterials that can help to reduce hazardous medical-device complications. The surface wettability of the graphene/TiO2 nanoparticle-coated PLA surface was evaluated by measuring the apparent water contact angle. The surface chemical composition and surface morphology were analyzed via Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The graphene/TiO2-coated PLA film achieved superhydrophobic properties by demonstrating a water contact angle greater than 150°. The water contact angle of the graphene/TiO2 coating increased along with the concentration of the nanoparticles and the ratio of TiO2 to graphene. Moreover, the graphene/TiO2 coating exhibited excellent durability, whereby the contact angle of the coated surface remained unchanged after water immersion for 24 h. The duration of the effectiveness of the superhydrophobic coating suggests its suitability for medical devices, for which a short duration of administration is involved. This study reports an easy-to-replicate and cost-effective method for fabricating superhydrophobic graphene/TiO2-coated surfaces, which additionally substantiates a potential solution for the manufacturing of biomaterials in the future.

scholarly journals Cost-effective and eco-friendly synthesis of titanium dioxide (TiO2) nanoparticles using fruit’s peel agro-waste extracts: characterization, in vitro antibacterial, antioxidant activities

2019 ◽  
Vol 12 (3) ◽  
pp. 244-254 ◽  
Author(s):  
Noushin Ajmal ◽  
Keerti Saraswat ◽  
Md. Afroz Bakht ◽  
Yassine Riadi ◽  
Mohammed Jawed Ahsan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Tio2 Nanoparticles ◽  
Antioxidant Activities ◽  
Cost Effective
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