Hydrogen production using economical and environmental friendly nanoparticulate hydroxyapatite and its ion doping
© 2016 Hydrogen Energy Publications LLC Hydrogen production may be achieved using hydroxyapatite (HA) and ion-doped HA, economical and environmentally photocatalysts. HAs with a new minor absorption peak related to the increased photoactivity were discovered. Nanostructural characteristics of synthe...
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| Main Authors: | , |
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| Format: | Journal |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85007292912&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/57258 |
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| Institution: | Chiang Mai University |
| Summary: | © 2016 Hydrogen Energy Publications LLC Hydrogen production may be achieved using hydroxyapatite (HA) and ion-doped HA, economical and environmentally photocatalysts. HAs with a new minor absorption peak related to the increased photoactivity were discovered. Nanostructural characteristics of synthesized nanocrystalline hydroxyapatite were investigated. Ti4+cation incorporation and Zn2+, F−co-substituted HA were also produced and evaluated. Particle sizes of approximately 10–30 nm with considerably large surface area were obtained after heat treatment. HA shows moderate efficiency, having a 27.6 μmol h−1 g−1hydrogen production rate under UV radiation, probably because of the minor peak at approximately 375 nm. However, the hydrogen production rate of the Ti4+-incorporated sample increased by a factor of 2.6, 72.3 μmol h−1 g−1 |
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