Enhanced hydrogen production under a visible light source and dye degradation under natural sunlight using nanostructured doped zinc orthotitanates

2015 ◽  
Vol 39 (5) ◽  
pp. 3821-3834 ◽  
Author(s):  
Latesh Nikam ◽  
Rajendra Panmand ◽  
Sunil Kadam ◽  
Sonali Naik ◽  
Bharat Kale
Keyword(s):  
Energy Source ◽  
Hydrogen Production ◽  
Visible Light ◽  
Light Source ◽  
Dye Degradation ◽  
Clean Energy ◽  
Solar Light ◽  
Natural Sunlight ◽  
Clean Energy Source ◽  
Waste Degradation

Nanostructured zinc orthotitanates were successfully employed as solar light driven photocatalysts for waste degradation such as H2S which produces H2, a clean energy source, and dye degradation.

scholarly journals Straightforward synthesis of quinazolin-4(3H)-ones via visible light-induced condensation cyclization

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1494-1498
Author(s):  
Wuji Sun ◽  
Xue Ma ◽  
Yuqi Pang ◽  
Lifeng Zhao ◽  
Qidi Zhong ◽  
...  
Keyword(s):  
Energy Source ◽  
Visible Light ◽  
Functional Group ◽  
Clean Energy ◽  
Metal Catalyst ◽  
Catalyst Free ◽  
Clean Energy Source

Visible light was used as a readily available and renewable clean energy source for the green and metal catalyst free synthesis of quinazolin-4(3H)-ones. High and excellent yields of the desired products were obtained with good functional group tolerance.

scholarly journals Different forms of hydrogen production: a review and future perspectives

2022 ◽  
Vol 8 (2) ◽  
pp. 49-58
Author(s):  
Grazielle Cristina de Araujo ◽  
Jair Antonio Cruz Siqueira ◽  
Loreci Zanardini ◽  
João Felipe Peixoto Marques ◽  
Rafaela Lazzarin ◽  
...  
Keyword(s):  
Energy Source ◽  
Hydrogen Production ◽  
Literature Review ◽  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Biohydrogen Production ◽  
Research Centers ◽  
Future Perspectives ◽  
Clean Energy Source

There was a significant increase in the concern with climate issues, among them highlighted as the derivation of greenhouse gases from the burning fossil fuels, leading several research centers and researchers to seek new sources of less polluting energy, independent of the burn-based matrix of fuels. In this context, the present work has as main presenter a literature review, perspective and comparisons regarding the use of hydrogen as a clean energy source, presenting three main ways of obtaining it: a) through electrolysis using renewable sources; b) biohydrogen production, based on the photosynthesis of plants and algae; c) production through biodigesters.

scholarly journals Maximizing Hydrogen Production by Cyanobacteria

2008 ◽  
Vol 63 (3-4) ◽  
pp. 226-232 ◽  
Author(s):  
Hermann Bothe ◽  
Stefanie Winkelmann ◽  
Gudrun Boison
Keyword(s):  
Energy Source ◽  
Hydrogen Production ◽  
Solar Energy ◽  
Energy Conversion ◽  
Molecular Hydrogen ◽  
Solar Energy Conversion ◽  
Clean Energy ◽  
Anabaena Variabilis ◽  
High Concentrations ◽  
Clean Energy Source

When incubated anaerobically, in the light, in the presence of C2H2 and high concentrations of H2, both Mo-grown Anabaena variabilis and either Mo- or V-grown Anabaena azotica produce large amounts of H2 in addition to the H2 initially added. In contrast, C2H2- reduction is diminished under these conditions. The additional H2-production mainly originates from nitrogenase with the V-enzyme being more effective than the Mo-protein. This enhanced H2-production in the presence of added H2 and C2H2 should be of interest in approaches to commercially exploit solar energy conversion by cyanobacterial photosynthesis for the generation of molecular hydrogen as a clean energy source

scholarly journals Hydrogen as a Clean Energy Source

2021 ◽  
Author(s):  
Vikram Rama Uttam Pandit
Keyword(s):  
Energy Source ◽  
Hydrogen Production ◽  
Large Scale ◽  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Clean Energy ◽  
Green Energy ◽  
Main Challenge ◽  
Clean Energy Source ◽  
Energy Challenge

Sustainable development of the world is mainly dependent on the use of present energy resources, which primarily includes water, wind, solar, geothermal, and nuclear power. Hydrogen as a clean and green energy source can be the resolution of the energy challenge and may satisfy the demands of several upcoming generations. Hydrogen when used it does not produce any type of pollutant and this makes it a best candidate as a clean energy. Hydrogen energy can be generated from natural gas, oil, biomass, and fossil fuels using thermochemical, photocatalytic, microbiological and electrolysis processes. Large scale hydrogen production is also testified up to some extent with proper engineering for multi applications. Alas, storage and transportation of hydrogen are the main challenge amongst scientific community. Photocatalytic hydrogen production with good efficiencies and amount is well discussed. Till date, using a variety of metal oxide-sulfide, carbon-based materials, metal organic frameworks are utilized by doping or with their composites for enhance the hydrogen production. Main intents of this chapter are to introduce all the possible areas of hydrogen applications and main difficulties of hydrogen transportation, storage and achievements in the hydrogen generation with its applications.

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