Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Narendra M. Gupta"'
Publikováno v:
Adsorption Science & Technology, Vol 23 (2005)
Temperature-programmed desorption (TPD) and in situ Fourier-transform infrared (FT-IR) spectroscopic methods were employed to investigate the effect of loading and sample temperature on the state of benzene molecules inside the channels of NaZSM-5 ze
Externí odkaz:
https://doaj.org/article/9bea27c5eda443a28164910fb3976d36
Autor:
Narendra M. Gupta
Publikováno v:
Renewable and Sustainable Energy Reviews. 71:585-601
To design an efficient photocatalyst (PC) for semiconductor (SC)-mediated, solar-driven water dissociation to generate hydrogen, a host of strategies has been adopted, including the fabrication of semiconductor composites, substitution of impurities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca4d7b1cea3f91d74aa7d3e830976b6d
https://doi.org/10.1016/j.rser.2016.12.086
https://doi.org/10.1016/j.rser.2016.12.086
Publikováno v:
International Journal of Hydrogen Energy. 40:8695-8705
This study was aimed at discerning the enhancement in the visible-light–driven water splitting activity of nanocrystalline CdS photocatalysts because of their doping with a small amount of an aliovalent cation (Ag+ or Cr3+). The CdS/Cr-x (x = 0–2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb55cbdd3966110932c148f1ea9f9db0
https://doi.org/10.1016/j.ijhydene.2015.05.019
https://doi.org/10.1016/j.ijhydene.2015.05.019
Publikováno v:
International Journal of Hydrogen Energy. 39:19424-19433
A series of CdS/Nix nanocomposite photocatalysts, containing ca. 0.6–15 wt% Ni, were synthesized using a one-step hydrothermal method and characterized for their crystallographic, morphological, interfacial, and optical properties. Rietveld refinem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1bfcab9c4bf652babb330c58b463fe8
https://doi.org/10.1016/j.ijhydene.2014.09.087
https://doi.org/10.1016/j.ijhydene.2014.09.087
Autor:
H. G. Salunke, Narendra M. Gupta, Sarika Kelkar, Vikas Kashid, Robin Babu, Srungarpu N. Achary
Publikováno v:
RSC Adv.. 4:33435-33445
In this study, a relationship between physicochemical, photophysical and photocatalytic properties of hydrothermally synthesized orthorhombic iron niobate (FeNbO4) is investigated. o-FeNbO4 displayed a multi-regime optical absorbance, which was ascri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1ef3018ff3744ae02a2efe12c5e9914
https://doi.org/10.1039/c4ra06059h
https://doi.org/10.1039/c4ra06059h
Publikováno v:
Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 15(6)
Anchoring of uranyl species (2-4 mol%) led to the complete quenching of photoluminescence emission and the visible-light-driven water photodissociation activity of TiO2 (Degussa-P25) and a hydrothermally synthesized CdS photocatalyst. Photophysical m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bf2aefe408a27f818c4e1c6b3e54eeb
https://pubmed.ncbi.nlm.nih.gov/27142221
https://pubmed.ncbi.nlm.nih.gov/27142221
Autor:
Narendra M. Gupta, Dattakumar Mhamane, P. Dhanasekaran, Sarika Kelkar, Satishchandra Ogale, Anil Suryawanshi, Shankar I. Patil
Publikováno v:
International Journal of Hydrogen Energy. 37:9584-9589
Nanocomposite of graphitic carbon nitride (g-C3N4) with optimum concentration of multiwall carbon nanotubes (MWCNTs) is shown to render 100% improvement in its photocatalytic activity for visible-light induced water splitting. Our study reveals that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f4f76ad05381242a1cdee079418a71
https://doi.org/10.1016/j.ijhydene.2012.03.123
https://doi.org/10.1016/j.ijhydene.2012.03.123
Publikováno v:
The Journal of Physical Chemistry C. 116:12156-12164
The application of γ′-Fe4N, a noble-metal-free, low-cost catalyst, in the photosplitting of neat water into stoichiometric amounts of H2 and O2 under visible-light irradiation is reported for the first time. The catalyst showed optical absorption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c1e17895caf50ee6cf2f0846ccc1875
https://doi.org/10.1021/jp303255f
https://doi.org/10.1021/jp303255f
Autor:
P. Dhanasekaran, Narendra M. Gupta
Publikováno v:
International Journal of Hydrogen Energy. 37:4897-4907
A d10 photocatalyst, GaFeO3 having a band gap of ∼2.7 eV, exhibits significant activity for the overall splitting of water under visible light (>395 nm) irradiation, in the absence of sacrificial reagent or a noble metal co-catalyst. The doping of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7943212205bb4b58411167ad63a1aa24
https://doi.org/10.1016/j.ijhydene.2011.12.068
https://doi.org/10.1016/j.ijhydene.2011.12.068
Publikováno v:
Microporous and Mesoporous Materials. 144:82-90
MCM-41 samples containing Ce4+ and Al3+ in the network, designated as Cex–Al–MCM-41 (x = 0.0–0.04), were synthesized and characterized systematically. These samples exhibited higher catalytic activity for Mukaiyama-aldol condensations to produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::621c6b180351d707c44814995448fb30
https://doi.org/10.1016/j.micromeso.2011.03.027
https://doi.org/10.1016/j.micromeso.2011.03.027