@article {49,
	title = {Efficient photocatalytic hydrogen evolution system by assembling earth abundant NixOy nanoclusters in cubic MCM-48 mesoporous materials.},
	journal = {RSC Advances},
	volume = {6},
	year = {2016},
	note = {CAPLUS AN 2016:982565(Journal; Online Computer File)},
	month = {2016},
	pages = {59169 - 59180},
	publisher = {Royal Society of Chemistry},
	abstract = {A cubic MCM-48 mesoporous material was employed as a support to encapsulate earth abundant NixOy species (NiO and Ni2O3).  The cubic MCM-48 mesoporous support provides an excellent platform to not only effectively disperse NiO and/or Ni2O3 species but also to limit their particle sizes.  The presence of Ni2O3 species at an optimal amt. seems to enhance the photocatalytic activity of Ni-MCM-48 materials in comparison to a Ni-MCM-48 mesoporous material having only NiO dispersed in it.  In addn., the presence of bulk NiO species also seems to be detrimental to the generation of solar hydrogen.  The apparent quantum yield (AQY) of the most active material, Ni-MCM-48-2.5\% was estd. to be 5.35\%.  This was over 250 times higher than a bulk, NiO (AQY = 0.02\%) under identical exptl. conditions.  This study indicates that MCM-48 can be used as an effective support to disperse NixOy species. [on SciFinder(R)]},
	keywords = {MCM mesoporous material nickel oxide nanocluster photocatalytic hydrogen evolution},
	isbn = {2046-2069},
	author = {Peng, Rui and Shrestha, Khadga and Mishra, Gautam and Baltrusaitis, Jonas and Wu, Chia-Ming and Koodali, Ranjit T.}
}
@article {57,
	title = {Solar hydrogen generation over CdS incorporated in Ti-MCM-48 mesoporous materials under visible light illumination.},
	journal = {International Journal of Hydrogen Energy},
	volume = {41},
	year = {2016},
	note = {CAPLUS AN 2016:137661(Journal; Online Computer File)},
	month = {2016},
	pages = {4106 - 4119},
	publisher = {Elsevier Ltd.},
	abstract = {MCM-48 cubic mesoporous materials contg. CdS and spatially isolated titania nanoclusters were prepd. in this study.  Powder X-ray diffraction (XRD), nitrogen adsorption isotherm, transmission electron microscopy (TEM), at. absorption spectrophotometry (AAS), UV-Visible diffuse reflectance spectroscopy (DRS), XPS, and ESR (EPR) studies were employed for the characterization of the CdS contg. Ti-MCM-48 mesoporous materials.  In the current study, all the samples showed photocatalytic activity under visible light (λ > 400 nm) irradn. for prodn. of hydrogen from splitting of water without Pt as a co-catalyst.  The solar hydrogen evolution rate by visible light irradn. seemed to be dependent on CdS and TiO2 content and the most active photocatalyst produced hydrogen at a rate of 2.726 mmol/h/gcatalyst.  The apparent quantum yield of the most active photocatalyst was estd. to be 36.3\%. [on SciFinder(R)]},
	keywords = {photocatalyst photocatalysis, solar hydrogen cadmium sulfide titanium Mzeolite mesoporous visible light},
	isbn = {0360-3199},
	author = {Peng, Rui and Wu, Chia-Ming and Baltrusaitis, Jonas and Dimitrijevic, Nada M. and Rajh, Tijana and Koodali, Ranjit T.}
}
@article {69,
	title = {Pd-Ti-MCM-48 cubic mesoporous materials for solar simulated hydrogen evolution.},
	journal = {International Journal of Hydrogen Energy},
	volume = {40},
	year = {2015},
	note = {CAPLUS AN 2014:2091523(Journal; Online Computer File)},
	pages = {905 - 918},
	publisher = {Elsevier Ltd.},
	abstract = {A facile synthetic method (in >=4 h) for simultaneously loading high amts. of TiO2 (Si/Ti = 3) and Pd0 co-catalyst (0.1\% per g of total catalyst) in cubic mesoporous MCM-48 material was developed at room temp.  The solar simulated photocatalytic H evolution from photocatalysts contg. Pd0 and TiO2 nanoclusters in periodic cubic MCM-48 and aperiodic mesoporous SiO2 was compared.  The periodicity of the mesoporous SiO2 support, the oxidn. state of Pd, the location and dispersion of Pd0 have a significant impact on the photocatalytic activity.  Periodic cubic MCM-48 mesoporous SiO2 contg. Pd0 in close contact with TiO2 exhibit superior H evolution rates compared to Pd0-TiO2 contg. aperiodic mesoporous SiO2.  The highly ordered and open 3-dimensional mesoporous cubic MCM-48 support has high surface area and facilitate good dispersion and close contact of TiO2 and Pd0.  At very low loadings of 0.1\% of Pd, H yield is 560 μ mol h-1, which is among the highest reported in the literature for Pd0 contg. TiO2 based materials under solar simulated conditions.  Probably the pore architecture of the support is also an important parameter that governs the photocatalytic activity.  The Pd0-mesoporous materials in general possess higher activity than Pd2+ contg. mesoporous materials.  The photocatalysts were extensively characterized by a variety of techniques such as powder XRD, N sorption anal., transmission and scanning electron microscopic studies, photoluminescence, diffuse reflectance spectroscopy (DRS), CO Chemisorption, and XPS. [on SciFinder(R)]},
	keywords = {zeolite MCM supported palladium titania photocatalysis hydrogen evolution},
	isbn = {0360-3199},
	author = {Peng, Rui and Baltrusaitis, Jonas and Wu, Chia-Ming and Koodali, Ranjit T.}
}
@article {72,
	title = {Solar simulated hydrogen evolution using cobalt oxide nanoclusters deposited on titanium dioxide mesoporous materials prepared by evaporation induced self-assembly process.},
	journal = {International Journal of Hydrogen Energy},
	volume = {40},
	year = {2015},
	note = {CAPLUS AN 2015:1176980(Journal; Online Computer File)},
	pages = {10795 - 10806},
	publisher = {Elsevier Ltd.},
	abstract = {Cobalt-contg. TiO2 mesoporous materials were prepd. by Evapn.-Induced Self-Assembly (EISA) process.  The resulting mesoporous materials were characterized using powder X-ray diffraction (XRD), nitrogen physisorption, Raman spectroscopy, diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), XPS, and photoluminescence spectroscopy (PL).  The photocatalytic activities of the mesoporous materials were investigated for hydrogen prodn. under solar simulated conditions.  The non-modified TiO2 sample produced only 4 μmole H2/g catalyst after 4 h of irradn.  In contrast, the Co contg. mesoporous materials produced significantly higher amts. of hydrogen under identical conditions.  The highest solar hydrogen evolution (634 μmole H2/g catalyst after 4 h of irradn.) was from the Co-TiO2-0.5 material.  The physico-chem. characterization results indicate that the Co2+ ions are dispersed as oxide species on the surface of the mesoporous titania.  These cobalt surface species act as trap sites preventing recombination of the charge carriers as shown by PL measurements.  The addn. of Co2+ ions to the synthesis mixt. prevents the formation of anatase-to-rutile which favorably permits more solar hydrogen prodn. [on SciFinder(R)]},
	keywords = {solar radiation hydrogen prodn cobalt oxide nanocluster titania selfassembly},
	isbn = {0360-3199},
	author = {Mahoney, Luther and Peng, Rui and Wu, Chia-Ming and Baltrusaitis, Jonas and Koodali, Ranjit T.}
}
@article {79,
	title = {Competitive role of structural properties of titania-silica mixed oxides and a mechanistic study of the photocatalytic degradation of phenol.},
	journal = {Applied Catalysis, B: Environmental},
	volume = {148-149},
	year = {2014},
	note = {CAPLUS AN 2014:264808(Journal; Online Computer File)},
	pages = {394 - 405},
	publisher = {Elsevier B.V.},
	abstract = {TiO2-SiO2 mixed oxide materials were hydrothermally synthesized and the photocatalytic degrdn. of phenol under UV-irradn. was evaluated.  We also demonstrated that varying the co-solvent, modulates the structural properties of the materials.  In particular, the use of non-polar co-solvents such as toluene seemed to increase the crystallinity, surface area, and pore diam. while the crystallite size of titania seemed to change little.  A comprehensive characterization using surface and bulk techniques evidenced the role of porosities, crystallinity, and Ti-O-Si linkages of the mixed oxides as significant factors that contribute to the degrdn. of phenol.  The TiO2-SiO2 mixed oxide material prepd. using only ethanol as the solvent showed 24\% degrdn. of phenol after 120 min of irradn. whereas other mixed oxide materials degraded phenol more efficiently (57\% to 100\%) in the same duration of time.  The higher photocatalytic activities of the mixed oxide materials prepd. using non-polar solvents is attributed to a combination of factors that include higher Apparent Surface Coverages of Ti-O-Si heterolinkages, larger pore sizes, and most importantly higher crystallinities of the titania phase.  Larger pore sizes enabled better transport of reactant mols. and products to and from the active sites (Ti-O-Si heterolinkages) and the higher crystallinities of the titania phase helped in minimizing the electron-hole recombination in these photocatalysts, and thus resulted in high degrdn. efficiencies. [on SciFinder(R)]},
	keywords = {structure titania silica mixed oxide photocatalysis photocatalyst phenol},
	isbn = {0926-3373},
	author = {Rasalingam, Shivatharsiny and Kibombo, Harrison S. and Wu, Chia-Ming and Peng, Rui and Baltrusaitis, Jonas and Koodali, Ranjit T.}
}
@article {85,
	title = {Insight into band positions and inter-particle electron transfer dynamics between CdS nanoclusters and spatially isolated TiO2 dispersed in cubic MCM-48 mesoporous materials: a highly efficient system for photocatalytic hydrogen evolution under visible li},
	journal = {Physical Chemistry Chemical Physics},
	volume = {16},
	year = {2014},
	note = {CAPLUS AN 2014:16774(Journal; Online Computer File)},
	pages = {2048 - 2061},
	publisher = {Royal Society of Chemistry},
	abstract = {CdS incorporated Si-MCM-48 and Ti-MCM-48 cubic phased mesoporous photocatalysts were prepd. by a two-step modification synthetic approach under relatively mild conditions.  A highly efficient (24.8\%, apparent quantum yield (AQY)) photocatalyst for visible light (λ > 400 nm) enabled solar hydrogen evolution can be realized by assembling CdS with Ti-MCM-48 cubic mesoporous materials in the absence of a noble metal co-catalyst.  The photocatalytic mechanism was thoroughly investigated and demonstrated by conducting a wealth of characterization techniques such as powder X-ray diffraction (XRD), nitrogen adsorption isotherm, transmission electron microscopy (TEM), UV-visible diffuse reflectance spectroscopy (DRS), XPS, UPS (UVPS), at. absorption spectroscopy (AAS), photoluminescence (PL) spectroscopy, time-resolved fluorescence emission decay, and ESR (EPR) spectroscopy studies.  This work is the first to unambiguously identify the band positions of both CdS and TiO2 encapsulated in porous materials.  The photocatalytic activity of the CdS incorporated Ti-MCM-48 mesoporous photocatalysts was found to be dependent on the content of both CdS and TiO2.  A correlation between the electron injection efficiency and the photocatalytic activity was established as well in the CdS incorporated Ti-MCM-48 mesoporous photocatalysts. [on SciFinder(R)]},
	keywords = {band position electron transfer cadmium sulfide titania MCM48, photocatalysis hydrogen evolution visible light},
	isbn = {1463-9076},
	author = {Peng, Rui and Lin, Cuikun and Baltrusaitis, Jonas and Wu, Chia-Ming and Dimitrijevic, Nada M. and Rajh, Tijana and May, Stanley and Koodali, Ranjit T.}
}
@article {108,
	title = {Influence of Ti-O-Si hetero-linkages in the photocatalytic degradation of Rhodamine B.},
	journal = {Catalysis Communications},
	volume = {31},
	year = {2013},
	note = {CAPLUS AN 2013:15798(Journal; Online Computer File)},
	pages = {66 - 70},
	publisher = {Elsevier B.V.},
	abstract = {The influence of Ti-O-Si hetero-linkages in the degrdn. of Rhodamine B (RhB) dye over TiO2-SiO2 xerogels is exemplified by XPS anal.  The authors demonstrate a relationship between the percentage surface content of Ti-O-Si and the rate of photocatalytic degrdn. of RhB.  The authors detailed surface investigation revealed that the overall degrdn. of RhB is enhanced due to the high surface percentage content of Ti-O-Si species, high crystallinity of titania phase, and its effective dispersion on a high surface area porous silica support. [on SciFinder(R)]},
	keywords = {titania silica xerogel visible light photocatalyst},
	isbn = {1566-7367},
	author = {Rasalingam, Shivatharsiny and Kibombo, Harrison S. and Wu, Chia-Ming and Budhi, Sridhar and Peng, Rui and Baltrusaitis, Jonas and Koodali, Ranjit T.}
}
@article {110,
	title = {Investigation of the role of platinum oxide for the degradation of phenol under simulated solar irradiation.},
	journal = {Applied Catalysis, B: Environmental},
	volume = {136-137},
	year = {2013},
	note = {CAPLUS AN 2013:414160(Journal; Online Computer File)},
	pages = {248 - 259},
	publisher = {Elsevier B.V.},
	abstract = {The authors demonstrate that a desired oxidn. state can be achieved by synthetic colloidal methods and the choice of characterization technique is crucial for detg. the physicochem. properties that influence the photocatalytic activities.  XPS studies showed that PtO2 was realized in this study, and the resultant cryst. PtO2-TiO2 prepd. by subsequent hydrothermal treatment demonstrated activity for phenol degrdn. under simulated solar light irradn.  Preformed platinum based TiO2 ensures control over the oxidn. state and the crystallite size of titania.  The role of Ptox in the form of stable Pt4+ is elucidated as a mild recombination center, whereas the crystallite size of Pt in surfactant free Pt0-TiO2 appears to be the overriding factor for attaining enhanced photocatalytic performance. [on SciFinder(R)]},
	keywords = {platinum oxide titania photocatalyst phenol photodegrdn solar irradn},
	isbn = {0926-3373},
	author = {Kibombo, Harrison S. and Wu, Chia-Ming and Peng, Rui and Baltrusaitis, Jonas and Koodali, Ranjit T.}
}
@article {121,
	title = {Synthesis-dependent oxidation state of platinum on TiO2 and their influences on the solar simulated photocatalytic hydrogen production from water.},
	journal = {Journal of Physical Chemistry C},
	volume = {117},
	year = {2013},
	note = {CAPLUS AN 2013:1198819(Journal; Online Computer File)},
	pages = {16850 - 16862},
	publisher = {American Chemical Society},
	abstract = {Platinized TiO2 photocatalysts of different compns. of Pt0 and PtO2 were prepd. by modifying the synthesis procedures.  The physicochem. properties of the composite materials were characterized by XPS and high-resoln. transmission electron microscopy.  Energy dispersive X-ray spectroscopy measurements confirmed the presence of Pt species existing as PtO2 and/or mixts. of Pt0 and PtO2.  The composite material, Pt-TiO2-2\%H, contained a high amt. of metallic Pt0 and PtO2 in close proximity with TiO2 that promoted an enhanced photocatalytic hydrogen evolution activity under simulated solar light irradn.  Although Pt-TiO2-2\%C and Pt-TiO2-2\%T consisted of similar compns. of PtO2, these oxidized platinum species seem to appear further apart from TiO2 in Pt-TiO2-2\%C than Pt-TiO2-2\%T.  This caused dramatic variation in their optical behaviors such as strong fluorescence quenching and lower photocatalytic hydrogen evolution activity in the former photocatalyst.  A photocatalyst prepd. by the conventional photodeposition method was also prepd., characterized, and its photocatalytic activity assessed.  This work provides an opportunity to understand the role of PtO2 for photocatalytic prodn. of hydrogen from platinized TiO2 composites and the importance of heterojunctions in such photocatalysts for solar energy conversion. [on SciFinder(R)]},
	keywords = {photocatalytic hydrogen prodn platinum oxidn state titania},
	isbn = {1932-7447},
	author = {Parayil, Sreenivasan Koliyat and Kibombo, Harrison S. and Wu, Chia-Ming and Peng, Rui and Kindle, Trevor and Mishra, Srujan and Ahrenkiel, S. Phil and Baltrusaitis, Jonas and Dimitrijevic, Nada M. and Rajh, Tijana and Koodali, Ranjit T.}
}
@article {124,
	title = {Ultra-stable CdS incorporated Ti-MCM-48 mesoporous materials for efficient photocatalytic decomposition of water under visible light illumination.},
	journal = {Chemical Communications (Cambridge, United Kingdom)},
	volume = {49},
	year = {2013},
	note = {CAPLUS AN 2013:436061(Journal; Online Computer File)},
	pages = {3221 - 3223},
	publisher = {Royal Society of Chemistry},
	abstract = {A RuO2-CdS-Ti-MCM-48 mesoporous material has been prepd.  This composite material generates hydrogen and oxygen in the absence of a Pt co-catalyst and most importantly photocorrosion of CdS is completely eliminated. [on SciFinder(R)]},
	keywords = {ruthenium oxide cadmium sulfide mesoporous titanium silicate water photodecompn, water visible light photocatalytic decompn cadmium sulfide mesoporous silica},
	isbn = {1359-7345},
	author = {Peng, Rui and Wu, Chia-Ming and Baltrusaitis, Jonas and Dimitrijevic, Nada M. and Rajh, Tijana and Koodali, Ranjit T.}
}
@article {133,
	title = {Enhanced photocatalytic water splitting activity of carbon-modified TiO2 composite materials synthesized by a green synthetic approach.},
	journal = {International Journal of Hydrogen Energy},
	volume = {37},
	year = {2012},
	note = {CAPLUS AN 2012:405985(Journal; Online Computer File)},
	month = {2012///},
	pages = {8257 - 8267},
	publisher = {Elsevier Ltd.},
	abstract = {We report a green and facile approach for the prepn. of carbon-modified (C-modified) TiO2 composite materials by hydrothermal synthesis followed by pyrolytic treatment.  The resultant materials were characterized by powder X-ray diffraction (XRD), nitrogen physisorption studies, Raman spectroscopy, XPS, diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, and transmission electron microscopy (TEM).  The photocatalytic performances of these materials were evaluated by calcg. the amt. of hydrogen evolved from the decompn. of water under solar simulated irradn. conditions.  An improvement was achieved from no H2 evolution at all with the bare TiO2, to an evolution of 0.21 mL g-1 h-1 from a composite material modified with an optimum carbon loading of 3.62\%.  These results suggested that the interaction of carbon with predominantly rutile form of TiO2 can promote shallow trapping of photogenerated electrons in the oxygen vacancies.  This phenomenon consequently enhances the photocatalytic activity by minimizing charge carrier recombination, a characteristic demonstrated by fluorescence quenching of the TiO2 emission. [on SciFinder(R)]},
	keywords = {carbon titanium oxide composite photocatalytic water splitting hydrothermal method},
	isbn = {0360-3199},
	author = {Parayil, Sreenivasan Koliyat and Kibombo, Harrison S. and Wu, Chia-Ming and Peng, Rui and Baltrusaitis, Jonas and Koodali, Ranjit T.}
}
@article {147,
	title = {Visible light driven photocatalytic evolution of hydrogen from water over CdS encapsulated MCM-48 materials.},
	journal = {RSC Advances},
	volume = {2},
	year = {2012},
	note = {CAPLUS AN 2012:860855(Journal; Online Computer File)},
	month = {2012///},
	pages = {5754 - 5767},
	publisher = {Royal Society of Chemistry},
	abstract = {CdS encapsulated cubic MCM-48 mesoporous photocatalysts were prepd. by a post-impregnation method.  Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), nitrogen adsorption isotherm, UV-visible diffuse reflectance spectroscopy (DRS), FT-IR spectrometry, XPS, at. absorption spectroscopy (AAS), and photoluminescence (PL) spectroscopy were employed for the characterization of the CdS incorporated MCM-48 siliceous materials.  MCM-48 was loaded with different amts. of CdS.  In the current study, all the samples showed photocatalytic activity under visible light (λ > 400 nm) irradn. for prodn. of hydrogen from splitting of water in the absence of Pt, which is usually used in photocatalytic splitting of water.  The photocatalytic activity of the CdS incorporated MCM-48 mesoporous photocatalysts was found to be dependent on the CdS loading and the pore size of MCM-48 siliceous support.  The highest solar hydrogen evolution rate by visible light irradn. from the splitting of water was detd. to be 1.81 mmol h-1 gCdS-1 and the apparent quantum yield was estd. to be 16.6\%. [on SciFinder(R)]},
	keywords = {cadmium sulfide encapsulation photocatalyst water hydrogen photocatalytic activity},
	isbn = {2046-2069},
	author = {Peng, Rui and Zhao, Dan and Baltrusaitis, Jonas and Wu, Chia-Ming and Koodali, Ranjit T.}
}
