نتایج جستجو برای: metal oxide nanoparticle

تعداد نتایج: 381674  

2012
Dongxu Zhou Samuel W. Bennett Arturo A. Keller

Significant advances have been made on our understanding of the fate and transport of engineered nanomaterials. One unexplored aspect of nanoparticle aggregation is how environmental stimuli such as light exposure and temperature variations affect the mobility of engineered nanoparticles. In this study, TiO(2), ZnO, and CeO(2) were chosen as model materials for investigating the mobility of nan...

Journal: :Monatshefte Fur Chemie 2023

Abstract The spatial organization of metal oxide nanoparticles represents an important factor in the chemical utilization resulting structures. For production networks that are composed nanoparticle chains, we dispersed vapor phase-grown TiO 2 and ZnO homogeneously aqueous polyvinyl alcohol solution. After electrospinning, analyzed sizes diameters compositionally homogeneous electrospun fibers ...

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                                                                                  The synthesis of metal nanoparticles has attracted the attention of scientists in various fields, particularly in the chemical, physical, biological and medical sciences. Using extract of plant for nanoparticle synthesis can be advantageous over other biological processes because it eliminates the elaborate proc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1386

چکیده ندارد.

Journal: :iranian chemical communication 0
abbas mirzaie college of chemistry, shahrood university, p.o. box 36155-316, shahrood, iran ahmad afzalinia department of chemistry, payame noor university, p.o. box 7815753613, tehran, iran tahereh musabeygi department of chemistry, payame noor university, p.o. box 7815753613, tehran, iran

heteropoly acid promoted nanoparticle of nickel oxide samples were prepared by sol-gel method using heteropoly acids. prepared composite was characterized by xrd, ft-ir and icp technique. in this work, we have reported bromination of phenol, its derivatives and some aromatic compounds. the liquid phase bromination of phenol was performed using heteropoly acids immobilized nanoparticle of nickel...

Journal: :journal of nanostructures 2015
k. hedayati

in this research zinc oxide (zno) nano-crystalline powders were prepared by sol-gel method using zinc acetate. the zno nanoparticles were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), ultraviolet-visible (uv-vis), fourier transform infra-red (ft-ir) and energy dispersive x-ray (edx) spectroscopy. the structure of nanoparticles was studied using xrd pattern. the c...

2016
Chiranjib Chakraborty Ashish Ranjan Sharma Garima Sharma Sang-Soo Lee

Presently, nanotechnology is a multi-trillion dollar business sector that covers a wide range of industries, such as medicine, electronics and chemistry. In the current era, the commercial transition of nanotechnology from research level to industrial level is stimulating the world's total economic growth. However, commercialization of nanoparticles might offer possible risks once they are libe...

2015
Tifeng Jiao Haiying Guo Qingrui Zhang Qiuming Peng Yongfu Tang Xuehai Yan Bingbing Li

New reduced graphene oxide-based silver nanoparticle-containing composite hydrogels were successfully prepared in situ through the simultaneous reduction of GO and noble metal precursors within the GO gel matrix. The as-formed hydrogels are composed of a network structure of cross-linked nanosheets. The reported method is based on the in situ co-reduction of GO and silver acetate within the hyd...

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