نتایج جستجو برای: photocatalytic evaluation indexes

تعداد نتایج: 859581  

2011
Shaohua Shen Xiaobo Chen Feng Ren Coleman X Kronawitter Samuel S Mao Liejin Guo

A series of Pt-loaded MS/ZnIn2S4 (MS = transition-metal sulfide: Ag2S, SnS, CoS, CuS, NiS, and MnS) photocatalysts was investigated to show various photocatalytic activities depending on different transition-metal sulfides. Thereinto, CoS, NiS, or MnS-loading lowered down the photocatalytic activity of ZnIn2S4, while Ag2S, SnS, or CuS loading enhanced the photocatalytic activity. After loading ...

2015
Yuhui Cao Chen Li Junli Li Qiuye Li Jianjun Yang

Magnetically separable Fe3O4/AgBr hybrid materials with highly efficient photocatalytic activity were prepared by the precipitation method. All of them exhibited much higher photocatalytic activity than the pure AgBr in photodegradation of methyl orange (MO) under visible light irradiation. When the loading amount of Fe3O4 was 0.5 %, the hybrid materials displayed the highest photocatalytic act...

Journal: :Chemical science 2016
A Singh C J Fennell J D Weaver

Photocatalytic alkene synthesis can involve electron and energy transfer processes. The structure of the photocatalyst can be used to control the rate of the energy transfer, providing a mechanistic handle over the two processes. Jointly considering catalyst volume and emissive energy provides a highly sensitive strategy for predicting which mechanistic pathway will dominate. This model was dev...

2015
Yang Huang Dahu Ding Minshen Zhu Wenjun Meng Yan Huang Fengxia Geng Jie Li Jing Lin Chengchun Tang Zhongfang Lei Zhenya Zhang Chunyi Zhi

Intrinsic short hole diffusion length is a well-known problem for α-Fe2O3 as a visible-light photocatalytic material. In this paper, a nanodisk morphology was designed to remarkably enhance separation of electron-hole pairs of α-Fe2O3. As expected, α-Fe2O3 nanodisks presented superior photocatalytic activity toward methylene blue degradation: more than 90% of the dye could be photodegraded with...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
C Li X Z Li

In this study, the degradation of bisphenol A in aqueous suspension by interaction of photocatalytic oxidation and ferrate(VI) oxidation was investigated under different conditions. The results indicate that the formation of Fe(V) and Fe(IV) is in the photocatalytic reduction of Fe(VI) by electron (ecb-) on the surface of TiO2. The oxidation efficiency of the photocatalytic oxidation in the pre...

Journal: :Chemical communications 2013
Junqing Yan Guangjun Wu Naijia Guan Landong Li

Under UV-visible light irradiation, multiple synergetic promotion effects on the photocatalytic activity of TiO2 by gold deposition can be observed, and plasmonic Au/TiO2 shows great potential for photocatalytic solar conversion.

Journal: :Chemical communications 2014
Jian-Qiang Shen Ying Zhang Zhi-Ming Zhang Yang-Guang Li Yan-Qing Gao En-Bo Wang

Two phosphoniobate-based 3D frameworks were firstly constructed using the hexa-capped Keggin polyoxoniobates [PNb12O40(VO)6](3-) and copper cations. Photocatalytic studies indicated that the hybrid materials exhibit photocatalytic hydrogen evolution activity.

2011
Tamihiro Kawakami Takashi Hashimoto

There is a current lack of consensus regarding methods of assessment of vitiligo. Recently, the Vitiligo Area Scoring Index (VASI) and the Vitiligo European Task Force (VETF) were proposed to offer more accurate measures of disease severity indexes and treatment evaluation criteria. It would make sense to combine the VASI with the VETF system. We proposed an original scale for treatment evaluat...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2009
Berit Christoffersen Ulla Ribel Kirsten Raun Valeria Golozoubova Giovanni Pacini

The use of animal models in diabetes research requires reliable tests for evaluation of insulin sensitivity and beta-cell function. Minipigs are being increasingly used in metabolic research, and the aim of this study was to compare different tests and indexes for evaluation of insulin sensitivity and beta-cell function in Göttingen minipigs. Hyperinsulinemic, isoglycemic clamp, intravenous (IV...

Journal: :Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society 2016
Alessandro Ciresi Floriana Cicciò Stefano Radellini Carla Giordano

OBJECTIVE GH treatment (GHT) can lead to glucose metabolism impairment through decreased insulin sensitivity and impaired pancreatic β-cell function, which are the two key components of the pathogenesis of diabetes. Therefore, in addition to insulin sensitivity, during GHT it is very important to perform a reliable evaluation of insulin secretion. However, conflicting data exist regarding the i...

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