نتایج جستجو برای: visible light irradiation

تعداد نتایج: 507360  

Journal: :Chemical communications 2011
Xiaosong Zhou Feng Peng Hongjuan Wang Hao Yu Yueping Fang

Novel carbon nitride polymer sensitized TiO(2) nanotube arrays with high photocatalytic activity and photoelectrochemical response under visible light irradiation are prepared by electrodeposition.

2014
Saeedeh Hemmati Borji Simin Nasseri Amir Hossein Mahvi Ramin Nabizadeh Amir Hossein Javadi

In this study Fe (III)-doped TiO2 nanoparticles were synthesized by sol-gel method at two atomic ratio of Fe/Ti, 0.006 and 0.034 percent. Then the photoactivity of them was investigated on degradation of phenol under UV (<380 nm) irradiation and visible light (>380 nm). Results showed that at appropriate atomic ratio of Fe to Ti (% 0.034) photoactivity of Fe(III)-doped TiO2 nanoparticles increa...

Journal: :advances in environmental technology 0
mohsen mehdipour ghazi faculty of chemical, petroleum, and gas engineering, semnan university, semnan, 35131-19111, iran afsaneh shokri faculty of chemical, petroleum, and gas engineering, semnan university, semnan, 35131-19111, iran

in present investigation, zno nanostructure was synthesized by means of a precipitation and sonochemical methods. the x-ray diffraction (xrd) pattern is shown that the wurtzite structure of zno has the hexagonal symmetry and there is no impurity. the average zno particles crystallite size was calculated about 41 nm. the sem and tem images reveal nanostructure zno particles with a cauliflower-li...

Journal: :Chemical communications 2008
F Andrew Frame Elizabeth C Carroll Delmar S Larsen Michael Sarahan Nigel D Browning Frank E Osterloh

CdSe nanoribbons show catalytic activity for photochemical hydrogen evolution from aqueous Na2S/Na2SO3 solution under irradiation with ultraviolet and visible light.

Journal: :Chemical communications 2011
Jinyoung Jeong Eunju Yun Yohan Choi Hye-youn Jung Sang J Chung Nam Woong Song Bong Hyun Chung

Photochromic compound-conjugated fluorescent fullerene-silica nanoparticles prepared by the reverse-microemulsion method was utilized for photoswitchable cellular imaging by repeatable irradiation of ultraviolet and visible light.

Journal: :Chemical communications 2011
Shiguo Zhang Shimin Liu Qinghua Zhang Youquan Deng

A new class of azobenzene-based photoresponsive ionic liquids was prepared and showed reversible modulation of ionic conductivity in specific solvents under alternative UV/visible light irradiation.

Journal: :Chemical communications 2009
Ryu Abe Kenichi Shinmei Kohjiro Hara Bunsho Ohtani

Photocatalytic splitting of water into H(2) and O(2) under visible light irradiation is achieved using a coumarin-dye-adsorbed lamellar niobium oxide for hydrogen evolution.

Journal: :Chemical communications 2009
Xichen Cai Puran K De Kelechi C Anyaogu Ravi M Adhikari Sujeewa S Palayangoda Douglas C Neckers

The study of hole transfer from CdSe QD core to ligands under visible light irradiation and conductive polymer-QD composites formation without conventional photoinitiator.

2017
Aijun Cai Aiying Guo Zichuan Ma

TiO₂ nanoparticles are immobilized on chlorella cells using the hydrothermal method. The morphology, structure, and the visible-light-driven photocatalytic activity of the prepared chlorella/TiO₂ composite are investigated by various methods. The chlorella/TiO₂ composite is found to exhibit larger average sizes and higher visible-light intensities. The sensitization of the photosynthesis pigmen...

Ultrasonic-assisted method was applied for preparation of Cu+2-doped ZnS nanoparticles (mole fractions of Cu+2 ions are 0.000, 0.015, 0.030 and 0.060) in water as a template-free and green method at 30 min. The prepared nanoparticles were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and UV–Vis diffuse reflectance spectra (DRS)...

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