Results 301 to 310 of about 11,467,391 (359)

Exceptional synergistic enhancement of the photocatalytic activity of SnS2 by coupling with polyaniline and N-doped reduced graphene oxide

Applied Catalysis B: Environmental, 2018
Effective enhancement of the separation and transfer of photogenerated electrons and holes of semiconductor photocatalysts is key to increase their photocatalytic efficiency.
Fen Zhang, Yongcai Zhang, Geshan Zhang, Zhanjun Yang, D. Dionysiou, A. Zhu   +5 more
semanticscholar   +1 more source

Photocatalytic Activity of Inorganic Sunscreens

Journal of Dispersion Science and Technology, 2001
Some inorganic pigments are used as ingredients for sunscreens as they can absorb, reflect or scatter UV radiation. Titanium dioxide and zinc oxide, which are used for this purpose, are semiconductor oxides and show photocatalytic activity. As a consequence, they can promote transformation of organic molecules upon absorption of radiation.
Tatiana Picatonotto, Davide Vione, M. Eugenia Carlotti, Marina Gallarate   +3 more
openaire   +1 more source

Preparation and photocatalytic activity of SnO2

Materials Letters, 2016
SnO2 is prepared by the hydrolysis and the automatic oxidation of SnCl2 in water, it shows the photo catalytic activity for the degradation of methyl orange in water under the UV light illumination. In the above process, methyl orange concentration decreases quickly, the total organic carbon (TOC) decreases slowly; inorganic ions (SO42-, NO3-, NH4 ...
Yu Zhiyong, Qiu Ruiying, Li Huanrong, Wang Zhiyin, Ma Xiaohong, Dong Chaonan   +5 more
openaire   +1 more source

Chemical Auxiliary for Photocatalytic Active Colloids

Journal of the American Chemical Society
Active colloids with the ability to self-propel and collectively organize are emerging as indispensable elements in microrobotics and soft matter physics. For chemically powered colloids, their activity is often induced by gradients of chemical species in the particle's vicinity.
Wendi Duan, Yijiang Mu, Xiaoyong Mo, Zhisheng Wang, Tianran Zhang, Yannis Yan Lum Ho, Dengping Lyu, Dongwei Zhang, Runkai Zhao, Edmund Chun Ming Tse, Yongxiang Gao, Hao Wu, Yufeng Wang   +12 more
openaire   +2 more sources

A comparative study of photocatalytic activity of ZnS photocatalyst for degradation of various dyes

Optik (Stuttgart), 2018
A simple chemical precipitation method is used to synthesize the cubic phase of ZnS nanoparticles. The crystal structure, phase purity, surface morphology, optical and photo-luminescence properties, and photocatalytic activity of ZnS nanoparticles were ...
Z. Ye, L. Kong, Feng Chen, Zhigang Chen, Yunqing Lin, Chengbao Liu   +5 more
semanticscholar   +1 more source

Why hydroxocobalamin is photocatalytically active?

Chemical Physics Letters, 2012
Abstract Time-dependent density functional theory (TD-DFT) has been applied to investigate the relevant excited states involved in the photodissociation of hydroxocobalamin (HOCbl). The TD-DFT/BP86/6-31G(d) and TD-DFT/BP86/6-311G(d,p)//BP86-631G(d) calculations suggest that the photoscission of Co–OH bond is mediated by the repulsive 1(n + dCo → σ∗Co–
Manoj Kumar, Pawel M. Kozlowski
openaire   +1 more source

Photocatalytic activation of gypsum cements

Russian Journal of Applied Chemistry, 2017
Photocatalytic activity of gypsum cements that are based on the building plaster blend and synthetic calcium sulfate and contain 2–10 wt % titanium dioxide of anatase modification was studied. The decomposition rate of the model contaminant (Rhodamine C) on the surface of a plaster blend containing 2 wt %TiO2 becomes seven times higher under exposure ...
E. N. Krutsko, O. N. Musskaya, A. I. Kulak, V. K. Krut’ko   +3 more
openaire   +1 more source

A comprehensive study on the enhanced photocatalytic activity of CuO-NiO nanoparticles: Designing the experiments

Journal of Molecular Liquids, 2018
Effects of coupling, calcination temperature and mole ratio were studied on the photocatalytic activity of CuO and NiO nanoparticles. Both semiconductors' nanoparticles were synthesized by sol-gel method.
Samaneh Senobari, Alireza Nezamzadeh‐Ejhieh   +1 more
semanticscholar   +1 more source

Direct Z-scheme ZnO/CdS hierarchical photocatalyst for enhanced photocatalytic H2-production activity

Applied Catalysis B: Environmental, 2019
Herein, ZnO/CdS hierarchical composite was prepared through a hydrothermal and chemical bath deposition (CBD) process. Its photocatalytic H2-production performance was tested.
Sheng Wang, Bicheng Zhu, Mingjin Liu, L. Zhang, Jiaguo Yu, Ming-hua Zhou   +5 more
semanticscholar   +1 more source

Photocatalytic activity of CuInS2 and CuIn5S8

Electrochimica Acta, 1992
Abstract The photocatalytic activity of CuInS 2 and CuIn 5 S 8 , prepared by chemical precipitation, for the hydrogen evolution from aqueous sulfite solution was investigated. The photocatalytic activity of CuIn 5 S 8 was about twice that of CuInS 2 and was improved remarkably by the addition of silver sulfide.
K. Kobayakawa, A. Teranishi, T. Tsurumaki, Y. Sato, A. Fujishima   +4 more
openaire   +1 more source