Photocatalytic degradation of toluene using a novel flow reactor with Fe-doped TiO2 catalyst on porous nickel sheets.


:A novel continuous-flow photocatalytic reactor was designed to decompose toluene by using porous nickel sheets that were coated with a Fe-doped TiO2 catalyst. While locating the UV lamp at the central axis, the catalyst sheets were located along the inner wall and positioned vertically with an equal space of 50 mm along the reactor. This geometry ensures better use of UV light, and a zigzag flow pattern of gas between the vertically located sheets provides for better mass transfer. The X-ray diffraction, scanning electron microscope and electric field-induced surface photovoltage spectra characterizations showed that Fe3+ ions were embedded effectively and distributed evenly throughout the TiO2 crystal lattice and an optimum molar ratio of Fe:Ti was 0.007. The reactor was used to investigate the factors that affect toluene degradation. The results showed that inlet toluene concentration, relative humidity and gas flow rate significantly affect toluene decomposition. The conversion decreases as inlet concentration increases. Degradation efficiencies of more than 95% can be achieved provided that the toluene concentration is kept below 3200 mg/m3. The conversion is affected little when oxygen content exceeds 21%. The optimal relative humidity is 25%. From the experimental data, a rate constant k of 131 mg/(m3.min) and Langmuir adsorption coefficient K of 0.0175 m3/mg were obtained.


Photochem Photobiol


Dezhi S,Sheng C,Chung JS,Xiaodong D,Zhibin Z




Has Abstract


2005-03-01 00:00:00














  • Attitudes, Beliefs, and Measures Taken by Parents to Protect Their Children from the Sun in Guangzhou City, China.

    abstract::Excessive sun exposure can cause sunburn, suntan, skin photoaging, and even skin cancer. Skin photoaging conflicts with the human pursuit of a young and beautiful appearance. Some research data indicate that the incidence of skin cancer in the Chinese has been increasing, although it remains lower than in whites. To e...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Wan M,Hu R,Li Y,Wang Y,Xie X,Yue P,Guan L,Lai W

    更新日期:2016-09-01 00:00:00

  • Photodynamic activity of substituted zinc trisulfophthalocyanines: role of plasma membrane damage.

    abstract::We recently reported that variations in cellular phototoxicity among a series of alkynyl-substituted zinc trisulfophthalocyanines (ZnPcS3Cn) correlates with their hydrophobicity, with the most amphiphilic derivatives showing the highest cell uptake and phototoxicity. In this study we address the role of the plasma mem...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Cauchon N,Nader M,Bkaily G,van Lier JE,Hunting D

    更新日期:2006-11-01 00:00:00

  • Effects of different doses of low power continuous wave he-ne laser radiation on some seed thermodynamic and germination parameters, and potential enzymes involved in seed germination of sunflower (Helianthus annuus L.).

    abstract::In this study, water-soaked seeds of sunflower were exposed to He-Ne laser irradiation of different energies to determine whether or not He-Ne laser irradiation caused changes to seed thermodynamic and germination parameters as well as effects on the activities of germination enzymes. The experiment comprised four ene...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Perveen R,Ali Q,Ashraf M,Al-Qurainy F,Jamil Y,Raza Ahmad M

    更新日期:2010-09-01 00:00:00

  • MicroRNAs and photocarcinogenesis.

    abstract::As a new class of sequence-specific regulators of gene expression, the microRNAs (miRNA) form a regulatory network with growth factors and transcription factors participating in various biological processes. It is now being recognized that the various key processes involved in cancer induction are under the control of...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章,评审


    authors: Syed DN,Lall RK,Mukhtar H

    更新日期:2015-01-01 00:00:00

  • Photochemistry of DNA using 193 nm excimer laser radiation.

    abstract::Photoproducts in double-stranded DNA induced by 193 nm radiation have been investigated. Double-stranded, supercoiled pBR322 DNA in buffered aqueous solution was exposed to varying fluences of 193 nm radiation from an ArF excimer laser. The quantum yields for formation of cyclobutylpyrimidine dimers, frank strand brea...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Kochevar IE,Buckley LA

    更新日期:1990-05-01 00:00:00

  • Quantum yields and kinetics of the firefly bioluminescence reaction of beetle luciferases.

    abstract::Quantum yields of firefly bioluminescence reactions were determined for beetle luciferases from the three main families of luminous beetles emitting different bioluminescence colors. Quantum yield (QY) was significantly correlated with luminescence spectrum. The green light-emitting luciferase of the Brazilian click b...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Niwa K,Ichino Y,Kumata S,Nakajima Y,Hiraishi Y,Kato D,Viviani VR,Ohmiya Y

    更新日期:2010-09-01 00:00:00

  • Development of monoclonal antibodies against a riboflavin-tryptophan photoinduced adduct: reactivity to eye lens proteins.

    abstract::We describe here the development of monoclonal antibodies to the hapten tryptophan-riboflavin, generated by irradiation of a solution of bovine serum albumin in the presence of riboflavin. The specificity of the three obtained monoclonal antibodies, named 1E6, 5H5, 5A8 all belonging to the IgG1 isotype, was assessed b...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Diaz M,Becker MI,De Ioannes AE,Silva E

    更新日期:1996-06-01 00:00:00

  • Diagnostic potential of autofluorescence for an assisted intraoperative delineation of glioblastoma resection margins.

    abstract::The intrinsic autofluorescence properties of biological tissues can be affected by the occurrence of histological and biochemical alterations induced by pathological processes. In this study the potential of autofluorescence to distinguish tumor from normal tissues was investigated with the view of a real-time diagnos...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Croce AC,Fiorani S,Locatelli D,Nano R,Ceroni M,Tancioni F,Giombelli E,Benericetti E,Bottiroli G

    更新日期:2003-03-01 00:00:00

  • Fisetin inhibits UVB-induced cutaneous inflammation and activation of PI3K/AKT/NFκB signaling pathways in SKH-1 hairless mice.

    abstract::Solar ultraviolet B (UVB) radiation has been shown to induce inflammation, DNA damage, p53 mutations and alterations in signaling pathways eventually leading to skin cancer. In this study, we investigated whether fisetin reduces inflammatory responses and modulates PI3K/AKT/NFκB cell survival signaling pathways in UVB...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Pal HC,Athar M,Elmets CA,Afaq F

    更新日期:2015-01-01 00:00:00

  • Second Rhagophthalmid Luciferase Cloned from Chinese Glow-worm Menghuoius giganteus (Rhagophthalmidae: Elateroidea).

    abstract::The pH-insensitive beetle luciferases cloned from Rhagophthalmidae, Phengodidae, and Elateridae exhibit great potential application as reporter assays for monitoring gene expression. At present, however, only one luciferase has been reported from the enigmatic and predominantly Asian distributed luminous family Rhagop...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Liu GC,Dong ZW,Hou QB,He JW,Zhao RP,Wang W,Li XY

    更新日期:2020-01-01 00:00:00

  • The (α-4) photoconjugates of 5-methylcytosine, 1,5-dimethylcytosine, 1-methylthymine and thymidine.

    abstract::The pyrimidine nucleobases contained in DNA undergo a variety of photoinduced reactions in which two moieties become joined to form a product (e.g. formation of cyclobutane dimers and [6-4] adducts). Herein, we describe a new type of photoconjugation reaction that has been shown to occur for 5-methylcytosine (5-MeC), ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Shetlar MD,Chung J

    更新日期:2012-03-01 00:00:00

  • Spectroscopic studies on self-aggregation of bacteriochlorophyll-e in nonpolar organic solvents: effects of stereoisomeric configuration at the 3(1)-position and alkyl substituents at the 8(1)-position.

    abstract::Self-aggregation of naturally occurring bacteriochlorophyll (BChl)-e in nonpolar organic solvents was investigated by visible absorption, fluorescence emission and circular dichroism spectra. Cultured brown-colored photosynthetic bacteria have several BChl-e as light-harvesting antenna pigments. Three major BChl-e hom...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Saga Y,Matsuura K,Tamiaki H

    更新日期:2001-07-01 00:00:00

  • Psoralen Derivatives with Enhanced Potency.

    abstract::Psoralen is a furocoumarin natural product that intercalates within DNA and forms covalent adducts when activated by ultraviolet radiation. It is well known that this property contributes to psoralen's clinical efficacy in several disease contexts, which include vitiligo, psoriasis, graft-versus-host disease and cutan...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Buhimschi AD,Gooden DM,Jing H,Fels DR,Hansen KS,Beyer WF Jr,Dewhirst MW,Walder H,Gasparro FP

    更新日期:2020-09-01 00:00:00

  • Resonance Raman spectra of bacteriorhodopsin mutants with substitutions at Asp-85, Asp-96, and Arg-82.

    abstract::Detergent solubilized bacteriorhodopsin (BR) proteins which contain alterations made by site-directed mutagenesis (Asp-96----Asn, D96N; Asp-85----Asn, D85N; and Arg-82----Gln, R82Q) have been studied with resonance Raman spectroscopy. Raman spectra of the light-adapted (BRLA) and M species in D96N are identical to tho...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Lin SW,Fodor SP,Miercke LJ,Shand RF,Betlach MC,Stroud RM,Mathies RA

    更新日期:1991-03-01 00:00:00

  • Distribution of 5-aminolevulinic acid-induced porphyrins in noduloulcerative basal cell carcinoma.

    abstract::Microscopic fluorescence photometry incorporating a light-sensitive thermo-electrically cooled charge-coupled device (CCD) camera was employed to investigate the fluorescence distribution of 5-aminolevulinic acid (ALA)-induced porphyrins in 22 patients with a total number of 52 noduloulcerative basal cell carcinomas (...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Peng Q,Warloe T,Moan J,Heyerdahl H,Steen HB,Nesland JM,Giercksky KE

    更新日期:1995-11-01 00:00:00

  • Activities of the bimodal fluorescent protein produced by Photobacterium phosphoreum strain bmFP in the luciferase reaction in vitro.

    abstract::The activity of the bimodal fluorescent protein (bmFP) (lambda max, 488 and 517 nm) in the in vitro luciferase reaction has been studied. The bmFP that is produced by Photobacterium phosphoreum strain bmFP is a dimer of two homologous subunits binding four riboflavin 5'-phosphate (FMN)-myristate chromophores. The addi...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Karatani H,Konaka T

    更新日期:2000-02-01 00:00:00

  • Correlations between reported and measured ultraviolet radiation exposure of mothers and young children.

    abstract::Cumulative and intermittent sun exposure are risk factors for skin cancer, highlighting the need to monitor exposure during childhood. There is currently very little available information concerning the accuracy of self-reported levels of sun exposure, particularly for very young children. In this study, UV radiation ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: O'Riordan DL,Stanton WR,Eyeson-Annan M,Gies P,Roy C

    更新日期:2000-01-01 00:00:00

  • Light emission accompanies oxygen uptake during the peroxidative metabolism of tetracyclines.

    abstract::Tetracycline molecules offer several sites for peroxidative metabolism of the type known to lead to oxygen consumption and electronic excitation. Accordingly, when tetracycline and chlortetracycline were exposed to horseradish peroxidase in the presence of hydrogen peroxide, oxygen was taken up and light emission was ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Gilio VE,Cilento G

    更新日期:1993-09-01 00:00:00

  • Luciferin-Regenerating Enzyme Crystal Structure Is Solved but its Function Is Still Unclear.

    abstract::Contribution of luciferin-regenerating enzyme (LRE) for in vitro recycling of D-luciferin has been reported. According to crystal structure of LRE, it is a beta-propeller protein which is a type of all β-protein architecture. In this overview, reinvestigation of the luciferase-based LRE assays and its function is repo...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章,评审


    authors: Hosseinkhani S,Emamgholi Zadeh E,Sahebazzamani F,Ataei F,Hemmati R

    更新日期:2017-03-01 00:00:00

  • Photooxidation of tryptophan leading to 2-aminoacetophenone--a possible reason for the untypical aging off-flavor in wine.

    abstract::2-Aminoacetophenone (AAP) was recognized as the key compound for the so-called untypical aging off-flavor (UTA) in Vitis vinifera wines. In this study, it was shown that AAP can be formed by photooxidation of free and protein-bound tryptophan (TRP) in combination with a subsequent storage in model wine. Solutions of T...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Horlacher N,Schwack W

    更新日期:2014-11-01 00:00:00

  • Interspecific variation in UV defense mechanisms among temperate freshwater fishes.

    abstract::An important step in predicting the effects of future increases in UV radiation (UVR) is to evaluate the mechanisms that organisms use to prevent and repair DNA damage and determine how those mechanisms influence UVR sensitivity. Damage is prevented to varying degrees through photoprotection and repaired via two main ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Olson MH,Mitchell DL

    更新日期:2006-03-01 00:00:00

  • Photochemical Immobilization of Polymers on a Surface: Controlling Film Thickness and Wettability.

    abstract::In this manuscript, we demonstrate the control of film thickness and surface wettability in the photochemical immobilization of poly (vinyl alcohol) (PVA) to a self-assembled monolayer (SAM) containing a phthalimide chromophore. Surface attachment is characterized by ellipsometry and contact angle measurements. The we...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Carroll GT,Turro NJ,Mammana A,Koberstein JT

    更新日期:2017-10-01 00:00:00

  • Resolution of the individual tryptophanyl contributions to the near-ultraviolet dichroic activity of apomyoglobin.

    abstract::The individual tryptophanyl contributions to the near-ultraviolet dichroic activity of apomyoglobin in its native conformation have been resolved. This was accomplished by comparing the spectra of two classes of apomyoglobin with different aromatic residue contents and observing the effect of a specific modification o...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Sirangelo I,Irace G,Bismuto E

    更新日期:1994-06-01 00:00:00

  • Annual and interannual behavior of solar ultraviolet irradiance revealed by broadband measurements.

    abstract::This research examines the behavior of ground-level solar UV radiation as measured by eight broadband meters in the continental United States during the period from late 1994 to late 1998. The goal is to define the variability that occurs in UV irradiance over time scales ranging from one to several years. The monthly...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Frederick JE,Slusser JR,Bigelow DS

    更新日期:2000-10-01 00:00:00

  • Ultraviolet A radiation induces rapid apoptosis of human leukemia cells by Fas ligand-independent activation of the Fas death pathways.

    abstract::Endogenous cellular chromophores absorb ultraviolet A radiation (UVA, 290-320 nm), the major UV component of terrestrial solar radiation, leading to the formation of reactive oxidizing species that initiate apoptosis, gene expression and mutagenesis. UVA-induced apoptosis of T helper cells is believed to underlie the ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Zhuang S,Kochevar IE

    更新日期:2003-07-01 00:00:00

  • Oculocutaneous albinism in sub-Saharan Africa: adverse sun-associated health effects and photoprotection.

    abstract::Oculocutaneous albinism (OCA) is a genetically inherited autosomal recessive condition. Individuals with OCA lack melanin and therefore are susceptible to the harmful effects of solar ultraviolet radiation, including extreme sun sensitivity, photophobia and skin cancer. OCA is a grave public health issue in sub-Sahara...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章,评审


    authors: Wright CY,Norval M,Hertle RW

    更新日期:2015-01-01 00:00:00

  • A far-red fluorescent contrast agent to image epidermal growth factor receptor expression.

    abstract::Recent developments in optical technologies have the potential to improve the speed and accuracy of screening and diagnosis of curable precancerous lesions and early cancer, thereby decreasing the costs of detection and management of epithelial malignancies. The development of molecular-specific contrast agents for ma...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Hsu ER,Anslyn EV,Dharmawardhane S,Alizadeh-Naderi R,Aaron JS,Sokolov KV,El-Naggar AK,Gillenwater AM,Richards-Kortum RR

    更新日期:2004-03-01 00:00:00

  • Effects of low-power laser irradiation on cell locomotion in protozoa.

    abstract::Low-power lasers are commonly used in human medicine for treatment of various pathological conditions, but mechanisms of their healing effects are still poorly understood. The results of this study provide information related to these effects at the cellular level. Two different protozoan species, Euglena gracilis and...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Koutna M,Janisch R,Unucka M,Svobodnik A,Mornstein V

    更新日期:2004-11-01 00:00:00

  • Immobilized organic photosensitizers with versatile reactivity for various visible-light applications.

    abstract::Various photosensitizers were grafted by conventional peptide coupling methods to functionalized silica with several macroscopic shapes (powders, films) or embedded in highly transparent and microporous silica xerogel monoliths. Owing to the transparency and free-standing shape of the monoliths, the transient species ...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Ronzani F,Saint-Cricq P,Arzoumanian E,Pigot T,Blanc S,Oelgemöller M,Oliveros E,Richard C,Lacombe S

    更新日期:2014-03-01 00:00:00

  • Lifetime of fluorescent pyrene butyric acid probe in single living cells for measurement of oxygen fluctuation.

    abstract::We study the fluorescence lifetime of the well-known 1-pyrene butyric acid (PBA) to assess oxygen concentrations in living cells. The behavior of the probe is first studied in water, ethanol, protein solution and liposome suspension. The Stern-Volmer plot of these solutions is linear, and the bimolecular reaction rate...

    journal_title:Photochemistry and photobiology

    pub_type: 杂志文章


    authors: Ribou AC,Vigo J,Salmon JM

    更新日期:2004-09-01 00:00:00