D.  Kumar, Bhattacharyya, K., Tripathi, A., Varma, S., and Gupta, N. M., ?COLL 613-Studies on the vapor-phase photo-oxidation of methanol over nano-size titania clusters dispersed in MCM-41 mesoporous silica?, Abstracts of Papers of the American Chemical Society, vol. 232, p. 613-COLL, 2006.

P.  Kalita, Gupta, N. M., and Kumar, R., ?Synergistic role of acid sites in the Ce-enhanced activity of mesoporous Ce-Al-MCM-41 catalysts in alkylation reactions: FTIR and TPD-ammonia studies?, Journal of Catalysis, vol. 245, no. 2, pp. 338-347, 2007.

M. D.  Kadgaonkar, Kasture, M. W., Bhange, D. S., Joshi, P. N., Ramaswamy, V., Gupta, N. M., and Kumar, R., ?Synthesis and characterization of NCL-5, NCL-6 and NCL-7: new zeolites enriched with polymorph B of the BEA family?, Microporous and Mesoporous Materials, vol. 105, no. 1-2, pp. 82-88, 2007.

P. S.  Lunawat, Kumar, R., and Gupta, N. M., ?Structure sensitivity of nano-structured CdS/SBA-15 containing Au and PtCo-catalysts for the photocatalytic splitting of water?, Catalysis Letters, vol. 121, no. 3-4, pp. 226-233, 2008.

V.  Krishna, Kamble, V. S., Gupta, N. M., and Selvam, P., ?Uranyl-anchored MCM-41 as a highly efficient photocatalyst in the oxidative destruction of short chain linear alkanes: an in situ FTIR study?, Journal of Physical Chemistry C, vol. 112, pp. 15832-15843, 2008.

P.  Shah, Bhange, D. S., Deshpande, A., Kulkarni, M. S., and Gupta, N. M., ?Doping-induced microstructural, textural and optical properties of In2Ti1-xVxO5+delta semiconductors and their role in the photocatalytic splitting of water?, Materials Chemistry and Physics, vol. 117, no. 2-3, pp. 399-407, 2009.

A.  Deshpande, Shah, P., Gholap, R. S., and Gupta, N. M., ?Interfacial and physico-chemical properties of polymer-supported CdS center dot ZnS nanocomposites and their role in the visible-light mediated photocatalytic splitting of water?, Journal of Colloid and Interface Science, vol. 333, no. 1, pp. 263-268, 2009.

S. S.  Malwadkar, Gholap, R. S., Awate, S. V., Korake, P. V., Chaskar, M. G., and Gupta, N. M., ?Physico-chemical, photo-catalytic and O-2-adsorption properties of TiO2 nanotubes coated with gold nanoparticles?, Journal of Photochemistry and Photobiology A-Chemistry, vol. 203, no. 1, pp. 24-31, 2009.

A.  Deshpande and Gupta, N. M., ?Critical role of particle size and interfacial properties in the visible light induced splitting of water over the nanocrystallites of supported cadmium sulphide?, International Journal of Hydrogen Energy, vol. 35, no. 8, pp. 3287-3296, 2010.

S.  Selvakumar, Gupta, N. M., and Singh, A. P., ?Nature of the acid sites in the metal triflates immobilized in SBA-15 and their role in the friedel-crafts acylation of naphthalene?, Applied Catalysis A-General, vol. 372, no. 2, pp. 130-137, 2010.

K.  Bhattacharyya, Tripathi, A. K., Gupta, N. M., and Tyagi, A. K., ?Photodegradation of methanol under UV-visible irradiation by titania dispersed on polyester cloth?, Photochemistry and Photobiology, vol. 86, no. 2, pp. 241-246, 2010.

P.  Kalita, Gupta, N. M., and Kumar, R., ?Solvent-free mukaiyama-aldol condensation catalyzed by Ce-Al-MCM-41 mesoporous materials?, Microporous and Mesoporous Materials, vol. 144, no. 1-3, pp. 82-90, 2011.

P.  Dhanasekaran, Salunke, H. G., and Gupta, N. M., ?Visible-light-induced photosplitting of water over gamma `-Fe4N and gamma `-Fe4N/alpha-Fe2O3 nanocatalysts?, Journal of Physical Chemistry C, vol. 116, no. 22, pp. 12156-12164, 2012.

N. M.  Gupta, ?Novel, band-controlled metal oxide compositions for semiconductor-mediated photocatalytic splitting of water to produce H-2?, in  57th DAE Solid State Physics Symposium, Indian Institute of Bombay, India , 2013, vol. 1512, p. 1321.

S.  Devi, Kelkar, S. A., Kashid, V., Salunke, H. G., and Gupta, N. M., ?Preparation-method-dependent morphological, band structural, microstructural, and photocatalytic properties of noble metal-GaNbO4 nanocomposites?, RSC Advances, vol. 3, no. 37, pp. 16817-16828, 2013.

R.  Babu, Kelkar, S. A., Kashid, V., Achary, S. N., Salunke, H. G., and Gupta, N. M., ?Photophysical, bandstructural, and textural properties of o-FeNbO4 in relation to its cocatalyst-assisted photoactivity for water oxidation?, RSC Advances, vol. 4, no. 63, pp. 33435-33445, 2014.

P. V.  Korake, Achary, S. N., and Gupta, N. M., ?Role of aliovalent cation doping in the activity of nanocrystalline CdS for visible-light-driven H-2 production from water?, International Journal of Hydrogen Energy, vol. 40, no. 28, pp. 8695-8705, 2015.

N. M.  Gupta, Kelkar, S. A., and Korake, P. V., ?Quenching effect of uranyl species in the photoluminescence emission and visible-light-driven water dissociation activity of CdS and TiO2 photocatalysts?, Photochemical & Photobiological Sciences, vol. 15, no. 6, pp. 758-766, 2016.

N. M.  Gupta, ?Factors affecting the efficiency of a water splitting photocatalyst: a perspective?, Renewable & Sustainable Energy Reviews, vol. 71, pp. 585-601, 2017.