6 results match your criteria sink photo-generated

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The flexibility of metabolic interactions between chloroplasts and mitochondria in Nicotiana tabacum leaf.

Plant J 2021 Apr 2. Epub 2021 Apr 2.

Department of Biological Sciences, Department of Cell and Systems Biology, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, M1C1A4, Canada.

To examine the effect of mitochondrial function on photosynthesis, wild-type and transgenic Nicotiana tabacum with varying amounts of alternative oxidase (AOX) were treated with different respiratory inhibitors. Initially, each inhibitor increased the reduction state of the chloroplast electron transport chain, most severely in AOX knockdowns and least severely in AOX overexpressors. This indicated that the mitochondrion was a necessary sink for photo-generated reductant, contributing to the 'P700 oxidation capacity' of photosystem I. Read More

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Enhanced photocatalytic activity of rGO/TiO for the decomposition of formaldehyde under visible light irradiation.

J Environ Sci (China) 2018 Nov 18;73:138-146. Epub 2018 May 18.

College of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, South China University of Technology, Guangzhou 510006, China.

Due to the low concentration of indoor air contaminants, photocatalytic technology shows low efficiency for indoor air purification. The application of TiO for photocatalytic removal of formaldehyde is limited, because TiO can only absorb ultraviolet (UV) light. Immobilization of TiO nanoparticles on the surface of graphene can improve the visible light photocatalytic activity and the adsorption capacity. Read More

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November 2018

Free-standing red phosphorous/silver sponge monolith as an efficient and easily recyclable macroscale photocatalyst for organic pollutant degradation under visible light irradiation.

J Colloid Interface Sci 2018 May 5;518:130-139. Epub 2018 Feb 5.

School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.

Traditional nano-sized photocatalysts in powdery form suffer from difficulties in recyclability, and have to be immobilized before practical applications. In this study, red phosphorous/silver (red P/Ag) sponge monolith was discovered to be a new free-standing macroscale photocatalyst, which was fabricated by a one-pot hydrothermal method without using any organic surfactants or templates for the first time. The elemental red P not only functioned as a reducing agent in the formation of Ag sponge monolith during the synthesis processes, but also as the active photocatalyst in-situ immobilized onto the Ag sponge. Read More

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The formation of visible light-driven Ag/AgO photocatalyst with excellent property of photocatalytic activity and photocorrosion inhibition.

J Colloid Interface Sci 2018 Apr 31;516:511-521. Epub 2018 Jan 31.

Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China. Electronic address:

Ag/AgO composites were prepared via an extremely simple solvent-free chemical technique. The obtained Ag/AgO samples exhibited superior visible-light degradation efficiency for methyl orange removal. The degradation rate constant of as-obtained composite is almost 2 times as that of commercial AgO, and has only little change after five cycles of utilization. Read More

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Feasibility of silver doped TiO2/glass fiber photocatalyst under visible irradiation as an indoor air germicide.

Int J Environ Res Public Health 2014 Mar 20;11(3):3271-88. Epub 2014 Mar 20.

Department of Civil and Environmental Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 680-749, Korea.

This study investigated the feasibility of using Ag-TiO2 photocatalyst supported on glass fiber (Ag-TiO2/GF) prepared by a sol-gel method as an indoor air germicide. An experimental model was designed to investigate the bacterial disinfection efficiency of Staphylococcus (Staph), the most popular bacterium in hospitals in Korea, by the Ag-TiO2/GF photocatalyst. The silver content in Ag/TiO2 was altered from 1 to 10% to investigate the optimal ratio of Ag doped on TiO2/glass fiber (TiO2/GF) for photocatalytic disinfection of Staph. Read More

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Optimization of carbon dioxide and nitrogen fixation by the blue-green alga Anabaena in freshwater blooms.

Authors:
Hans W Paerl

Oecologia 1979 Jan;38(3):275-290

Department of Scientific and Industrial Research, Freshwater Section, Ecology Division, P.O. Box 415, Taupo, New Zealand.

In the bloom-forming filamentous blue-green algae Anabaena, both carbon dioxide and nitrogen fixation share a dependence on light. During daylight, A. reduces direct competition between these processes for light-generated reductant by optimizing carbon fixation during late morning hours while optimizing nitrogen fixation during afternoon hours. Read More

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January 1979
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