نتایج جستجو برای: tio2 nanoparticles

تعداد نتایج: 126074  

2013
S. Harikrishnan S. Kalaiselvam

In this study, thermal and heat transfer characteristics of nano based PCM during energy storage and release processes were investigated. This work also presented the preparation of nanofluid, which is solid-liquid composite material consisting of TiO2 nanoparticles (NPs) embedded into melting palmitic acid. Size of the TiO2 nanoparticles synthesized by sol-gel method was measured by using tran...

2014
N.W.M. Zulkifli M. A. Kalam H. H. Masjuki R. Yunus

This study examined the tribological properties of two lubricating oils, paraffin oil and biolubricant added with TiO2 nanoparticles used as additives. Biolubricant used in this experimental was derived from palm oil-based TMP (trimethylolpropane) ester. The TMP ester is produced from palm oil, which is biodegradable and has high lubricity properties such as a higher flash point temperature and...

2015
Maja Garvas Anze Testen Polona Umek Alexandre Gloter Tilen Koklic Janez Strancar Elena A. Rozhkova

BACKGROUND & AIM TiO2 nanoparticles have generally low toxicity in the in vitro systems although some toxicity is expected to originate in the TiO2-associated photo-generated radical production, which can however be modulated by the radical trapping ability of the serum proteins. To explore the role of serum proteins in the phototoxicity of the TiO2 nanoparticles we measure viability of the exp...

Journal: :Medycyna pracy 2014
Anna Maria Swidwińska-Gajewska Sławomir Czerczak

Titanium dioxide (TiO2) is produced in Poland as a high production volume chemical (HPVC). It is used mainly as a pigment for paints and coatings, plastics, paper, and also as additives to food and pharmaceuticals. Titanium dioxide nanoparticles are increasingly applied in cosmetics, textiles and plastics as the ultraviolet light blocker. This contributes to a growing occupational exposure to T...

2017
Alicja Mikolajczyk Natalia Sizochenko Ewa Mulkiewicz Anna Malankowska Michal Nischk Przemyslaw Jurczak Seishiro Hirano Grzegorz Nowaczyk Adriana Zaleska-Medynska Jerzy Leszczynski Agnieszka Gajewicz Tomasz Puzyn

Titania-supported palladium, gold and bimetallic nanoparticles (second-generation nanoparticles) demonstrate promising photocatalytic properties. However, due to unusual reactivity, second-generation nanoparticles can be hazardous for living organisms. Considering the ever-growing number of new types of nanoparticles that can potentially contaminate the environment, a determination of their tox...

Journal: :Chemical communications 2015
Junya Ohyama Taiki Koketsu Yuta Yamamoto Shigeo Arai Atsushi Satsuma

We found that twinned gold nanoparticles (T-AuNPs) are generated at a high probability by CO treatment of TiO2-supported Au(iii) at room temperature. Because of the formation of T-AuNPs, the Au/TiO2 prepared by the CO treatment showed higher catalytic activity for CO oxidation than Au/TiO2 prepared by conventional H2 treatment.

Journal: :Chemical communications 2014
Tong Jin Chao Liu Gonghu Li

Hybrid photocatalysts were prepared by depositing a macrocyclic cobalt complex on TiO2 surfaces. Upon UV light irradiation, photoexcited electrons in TiO2 nanoparticles were transferred to the surface cobalt catalyst for CO2 reduction.

2016
Shahab Ahmadi Iman Mohammadi S. K. Sadrnezhaad

Article history: Received 17 July 2015 Revised 18 December 2015 Accepted in revised form 19 December 2015 Available online 21 December 2015 The main challenges of biological implants are suitable strength, adhesion, biocompatibility and corrosion resistance. This paper discusses fabrication, characterization and electrochemical investigation of anodized Ti6Al4V without and with a hydroxyapatite...

2002
Dongbai Zhang Limin Qi Jiming Ma Humin Cheng

Shuttle-like crystalline TiO2 nanoparticles were synthesized by hydrolysis of titanium tetrabutoxide in the presence of acids in NP-5 (Igepal CO-520)–cyclohexane reverse micelle at room temperature. Pure rutile nanoparticles were obtained at appropriate acid concentrations. The influences of various reaction conditions, such as concentration and type of acid, water content, H2O/Ti molar ratio, ...

2018
Alvarado Jahell Acosta Guillermo Perez Fatima

This article contains the dataset referring to the article "Study of the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE" (Jahell et al., 2016) [1]. It includes the FT-IR data of the functionalized nanoparticles of TiO2 with Hexadecyltrimethoxysilane in different degrees of functionalization, thermogravimetric analysis, distribution and particl...

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