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Relevant bibliographies by topics / Photochemical behavior / Dissertations / Theses

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Dissertations / Theses on the topic 'Photochemical behavior'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Teranishi, T. "Photochemical Behavior of Type-II Semiconductor Heterodimers." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35176.

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Type-II semiconductor heterodimers with a staggered alignment of band edges at the heterointerface can promote spatial charge separation of the electron and hole in different parts of the heterodimer for photocatalytic and photovoltaic applications. In this paper, the two kinds of CdS-based type-II semiconductor heterodimers were successfully synthesized. Type-II CdS-CdTe heterodimers without any defects exhibited clear photo-induced electron transfer, whereas CdS-Cu31S16 heterodimers showed dominant consumption of photogenerated carries via vacancy-induced decay processes. When you are c

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2

Wang, Weiran. "Synthesis of the Fluorinated Arylene Alkylene Ether and Research on Its Potential Thermotropic Behavior under Photochemical Crosslink Reaction." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1399217687.

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3

Hamadanian, Khozani M., A. Reisi-Vanani, P. Razi, and S. Hoseinifard. "Study of Photocatalytic Behavior of Photochemical Doped TiO2 Nanoparticles with In-V Synthesized by Sol-Gel and Hydrothermal Methods." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35281.

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Indium- vanadium doped with different molar percent (0.05-1%) was prepared by photochemical reduction method on pure TiO2 nanoparticles synthesized by sol –gel and hydrothermal process. XRD, FT-IR, TEM, SEM and EDX analysis were done for characterized nanoparticles and methyl orange (MO) was used as an environmental pollutant to verify photocatalytic effect of synthesized particles under visible and UV lamps. Result of tests was showed that In-V doping restrain from crystal growth, that only hydrothermal TiO2 particles with binary doped 0.2% molar of In-V can improve photocatalytic activi

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4

Murthy, Rajesh S. "Effects of Chemical Environment on the Photochemical Behavior of Alkoxy Carbonyl Azides and 2-benzoyl-3-methyl-2H-Azirine." Cincinnati, Ohio University of Cincinnati, 2007. http://www.ohiolink.edu/etd/view.cgi?ucin1175296082.

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Thesis (Ph.D.)--University of Cincinnati, 2007.<br>Title from electronic thesis title page (viewed July 24, 2007). Includes abstract. Keywords: azide; nitrene; azirine; photolysis; argon matrix Includes bibliographical references.

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5

Olson, Kevin C. "I. pyranonaphthoquinone natural products via an annelation reaction of levoglucosenone. the total synthesis of optically pure kalafungin ;b2. the synthesis and photochemical behavior of acetylenic ethers /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487940308431088.

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6

Marinopoulos, Ioannis. "Photochemical and evaporation behaviour of sunscreen formulations." Thesis, University of Hull, 2016. http://hydra.hull.ac.uk/resources/hull:14580.

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Sunscreens ensure protection of the human skin against the harmful effects of the UV radiation in the UVB (290 – 320 nm) and UVA (320 – 400 nm) wavelength ranges. They commonly contain one or more organic UV absorbers that absorb light in the wavelength range of interest and/or inorganic particles, such as metal oxide semiconductors that absorb, scatter and reflect light. The efficiency of these formulations is measured by introducing the Sun Protection Factor (SPF). Currently, SPF is estimated from in vivo measurements, which is a time-consuming and expensive process. For a validated method,

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7

Sehlotho, Nthapo. "Phthalocyanines : photochemical, electrochemical and biomimetic catalytic behaviour." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1004997.

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This thesis explored use of metallophthalocyanines as electrocatalysts towards thiol and thiocyanate oxidation, nitrosothiol decomposition and reduction of oxygen, as well as biomimetic and photo-catalysts of cyclohexene oxidation. 2-mercaptoethanol (2-ME), L-cysteine (CYS) and reduced glutathione (GSH) thiols were oxidized on cobalt tetra ethoxythiophene and cobalt tetra phenoxy pyrrole phthalocyanine modified glassy carbon electrodes, whose catalytic activity was found to depend on pH, film thickness and method of electrode modification. Oxidation of thiocyanate (SCN-), CYS and 2-ME was cata

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8

McMoneagle, Andrew. "Antioxidant behaviour in photo-oxidation studies of model lipid compounds." Thesis, University of the West of Scotland, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311777.

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9

Idowu, Mopelola Abidemi. "Photophysical and photochemical behaviour of metallophthalocyanines effect of nanoparticles and molecules of biological importance." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1004990.

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Syntheses, spectral, photophysical and photochemical studies of some neutral, anionic and cationic metallophthalocyanine derivatives are presented. The effects of central metal ions, solvents, aggregation, surfactant, nanoparticles and bovine serum albumin on the photophysical and photochemical behaviour are investigated. Mercaptocarboxylic acid stabilized CdTe quantum dots (QDs) were used as energy donors to anionic water-soluble MPcs through Förster resonance energy transfer (FRET). Energy transfer (ET) from the QDs to the MPcs occurred upon photoexcitation of the QDs. An enhancement in effi

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10

Ferreira, Andrea Marques Vanderlei. "Aspectos bioecológicos e químicos de Pachycoris torridus (Scopoli, 1772) (Hemiptera: Scutelleridae) na herbivoria de Jatropha curcas (Linnaeus) (Euphorbiaceae)." Universidade Federal de Alagoas, 2015. http://www.repositorio.ufal.br/handle/riufal/1903.

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Pachycoris torridus (Scopoli, 1772) (Hemiptera: Scutelleridae) is the only representative of the Scutelleridae family of agricultural impact in Brazil. This bug is the main pest of Jatropha curcas (Linnaeus) (Euphorbiaceae), which produces raw material for the production of biodiesel. This study has as objective to evaluate bioecological and chemical aspects of P. torridus in herbivory of J. curcas. The experiments were performed using different methodologies, filed in literature, adapted to the particular insect pest, besides the development of new methodology that evaluated the attractivenes

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11

Boone, Edna Karen. "Radical cation propagation through bulged and mis-paired DNA : "A purine:purine staggered walk" (Part I). Part II, bulged DNA cleavage via a "Classic intercalator": a surprising role for siglet-excited ethidium bromide in the selective cleavage of a G-bulge containing duplex. Part III, synthesis and photochemical behavior of peptide nucleic acid trimers containning [sic] benzamidonaphthalimide." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/30733.

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12

Tsalkani, Canella. "Le nitrate de peracetyle (pan) dans la pollution photooxydante : physicochimie, analyse, etudes de cas." Paris 7, 1987. http://www.theses.fr/1987PA077244.

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13

Schmitt, Philippe. "Potentiels de l'électrophorèse capillaire dans l'analyse des pesticides et des substances humiques : application à l'étude des interactions pesticides - substances humiques." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL117N.

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Différentes méthodes électrophorétiques ont été développées pour l'analyse de pesticides et de substances humiques. En électrophorèse capillaire de zone (CZE), des herbicides cationiques (s-triazines) et/ou anioniques (acides phénoxyacétiques) peuvent être séparés aisément avec une limite de détection de l'ordre de 10 g/l. La CZE est également efficace dans l'analyse du comportement électrophorétique de mélanges complexes de polyélectrolytes anioniques tels que les substances humiques. Un exemple d'application de la CZE est donné dans l'analyse des métabolites hydroxyles de l'atrazine lors de

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14

Kalabokas, Pavlos. "Etude des facteurs sources et puits des composes carbonyles dans les masses d'air transitant au-dessus de la region parisienne." Paris 7, 1987. http://www.theses.fr/1987PA077216.

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15

Papazia, Mariam Eugénie. "Comportement de molécules biocides thiocyanées dans l'environnement : étude de leur dégradation : décomposition du sulfure de diméthyle, modèle de molécule soufrée, légère, malodorante : interactions de surface DMS-TiO2." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10172.

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Le thiocyano-methylthio-benzothiazole (tcmtb) et le bis-thiocyanate de methylene (mtc) sont des biocides a caractere fongicide. Ils sont surtout employes dans le traitement des eaux de papeteries ou dans la protection du bois, en vue de remplacer des composes polychlores, de type pentachlorophenol, destines a terme a disparaitre des marches a cause de leur grande toxicite. Nous avons etudie leur comportement dans l'environnement, en les soumettant a une hydrolyse a ph basique, ainsi qu'a une irradiation uv simulant le spectre solaire. Nous avons constate que, lors de leur decomposition, des co

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16

麥進成. "Sudstituent Effects on Photophysical and Photochemical Behavior in The Exciplex System." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/73926182700515828483.

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17

Chou, Yi-Kang, and 周宜慷. "Use Time-Dependent Density Functional Theory to Study Photochemical Behavior of trans-Aminostilbene." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/02687176879845896375.

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碩士<br>國立中央大學<br>化學研究所<br>95<br>Chemical reactions can be stimulated by the light absorbed by molecules. One of the simple examples is the cis-trans photoisomerization of stilbene. We have studied the photochemistry of trans-stilbene and its derivatives, p-trans-aminostilbene, m-trans-aminostilbene and o-trans-aminostilbene, using first principle density functional theory and time-dependent density functional theory. Molecular geometries of ground state (So) and first excited singlet state (S1), UV-vis spectra, fluorescence spectra as well as the potential energy surfaces of photoisomerization

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18

Liau, Kang-ling, and 廖康廩. "Studies on the Substituent Effects on the Photochemical Behavior of trans-4-(N-Phenylamino)stilbenes." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/53910101240426509743.

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碩士<br>國立中央大學<br>化學研究所<br>90<br>This thesis is a follow-up study on the “amino conjugation effect” of trans-4-aminostilbenes. N-phenyl substitution of trans-4-aminostilbene leads to a more planar ground-state geometry about the amino nitrogen atom, a larger charge-transfer character, a slower rate constant for photoisomerization, and thus a higher fluorescence quantum yield. To investigate the substituent effect on the photochemical behavior of trans-4-N-phenylaminostilbene, we have synthesized compound series 2-6, which have substituents on the N-phenylamino group, and compound series 7 and 8,

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19

Chen-JingHe and 何晨璟. "Photochemical fate of carboxylated single-wall carbon nanotubes: transformation and aggregation behavior under direct and indirect photoreaction." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/92114622812606077093.

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20

Moralejo, Carol. "Wavelength dependent, solvent dependent and transient absorption behavior in photochemical substitution reactions of W(CO)₇ rL (L= pyridine, piperidine, CO)." Thesis, 1989. http://spectrum.library.concordia.ca/5842/1/NL51345.pdf.

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21

Chang, Cheng-Chung, and 張健忠. "The Photochemical Behaviors of trans-4-Alkoxy-4'-Stilbazole and Its Hydrochloric salt." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/85997099931881654848.

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碩士<br>淡江大學<br>化學學系<br>81<br>The photoisomerization(trans=cis) and photocyclodimer- ization( monomer.arrr.dimer) oftrans-4-alkoxy-4'-stilbazole (CnOSP, with n=1 and 4)and its HCl salt(HClCnOSP) were studied (irradiated with wave-length >320nm) by UV-VIS,NMR and FT-IR spectroscopic methods. The NMR results showed that the photostationary state of C(1)OSP/CDCl solution consisted of trans:cis: dimer=20 :62 :18 mole % ,with k(1)=3.27*0.01/min,k(-1)= 1.048*0.01/min and k(2)=7*0.001(concentration/

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22

Dallin, Erin. "Aqueous photochemistry of syringic acid as a model for the environmental photochemical behaviour of humic substances." Thesis, 2007. http://hdl.handle.net/1828/240.

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The aqueous photochemistry of 4-hydroxy-3,5-dimethoxybenzoic acid (syringic acid) has been studied as a model humic substance in order to better understand the reactions that compounds of this type undergo in the natural environment. Syringic acid was chosen since it has been identified as a component of humic substances in the environment and bears many of chemical moieties found in structures of this type. In addition, there has been speculation that humic substances are responsible for some of the production of halomethanes that are released into the environment. Photolysis of these comp

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23

Chang, Wen-Shing, and 張文杏. "The Synthesis and The Photochemical Behaviors of trans-4(2- methyl)butyloxy-4'-stilbazole and trans-4(3-methyl)pentyloxy- 4'-stilbazole ans There Hydrochloric Salts." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/24331581028307583770.

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碩士<br>淡江大學<br>化學學系<br>83<br>In this study six compounds, there are MBOSP,MBOSP*, MPOSP, MPOSP*,MPTA and MPTA* were synthesized. All synthesized compounds were started with (+-)2-methyl- bytanol and (S)-(+)2- methylbutanol. MBOSP was obtained by the bromination, esterification and vinylic substitution. 3-methyl- pentanol was prepared by the bromination, nitrilification, carboxylic acid reaction and reduction. The process of synthesis for MPOSP is the same as that of MBOSP. However, the start

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