Cyclic performance of carbon-coated TiO2 for photocatalytic activity of methylene blue decomposition.


:Carbon-coated TiO2 powders were prepared from the mixtures of anatase (ST-01) and carbon precursor poly(vinyl alcohol) in different ratios by carbonization at 900 degrees C in a flow of either Ar or N2. Carbon-coated TiQ2 thus prepared was either fixed on an adhesive tape or formed into a film by using the organic binder poly(tetrafluoroethylene) and used for photodecomposition of methylene blue in water repeatedly. On the samples fixed on adhesive tapes, the rate constant was reproduced with about 10-20% scattering during repeated uses in a fresh methylene blue solution up to 7 times. On the samples formed into films by using the organic binder, the rate constant was reproduced after the 3rd or 4th cycle. The mutual relations in rate constant were almost the same among three different conditions for the determination, suspending the sample particles, fixed on an adhesive tape and formed into a film. The rate constant for the photodecomposition was found to give a maximum on the sample containing about 9 mass% carbon.


Environ Technol


Environmental technology


Inagaki M,Nonaka M,Kojin F,Tsumura T,Toyoda M




Has Abstract


2006-05-01 00:00:00












  • [Study of the effect of earthworm Lumbricus terrestris on the speciation of heavy metals in soils].

    abstract::Evaluation of the effect of earthworm Lumbricus terrestris on the speciation of copper and cadmium was carried out on two types of soils with a high metallic contamination due to municipal wastes spreading. The concentrations of total dissolved metals were higher in the soil containing earthworms. This increase was la...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: El Gharmali A,Rada A,El Meray M,Nejmeddine A

    更新日期:2002-07-01 00:00:00

  • Impact of local urban design and traffic restrictions on air quality in a medium-sized town.

    abstract::Traffic is the major air pollution source in most urban areas. Nowadays, most of the strategies carried out to improve urban air quality are focused on reducing traffic emissions. Nevertheless, acting locally on urban design can also reduce levels of air pollutants. In this paper, both strategies are studied in severa...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Acero JA,Simon A,Padro A,Santa Coloma O

    更新日期:2012-10-01 00:00:00

  • [Treatment of tannery wastewater by infiltration percolation: chromium removal and speciation in soil].

    abstract::The aim of this paper was, on one hand, to study the treatment of raw tannery effluent by infiltration percolation system and, on the other hand, to determine the distribution and speciation of chromium in the used soil. The system pilot consisted of columns filled to 15 cm of gravel and 60 cm of soil (88% of sand). T...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Tiglyene S,Jaouad A,Mandi L

    更新日期:2008-06-01 00:00:00

  • Proposal and application of a regional methodology of comparative risk assessment for potentially contaminated sites.

    abstract::A possible approach for determining soil and groundwater quality criteria for contaminated sites is the comparative risk assessment. Originating from but not limited to Italian interest in a decentralised (regional) implementation of comparative risk assessment, this paper first addresses the proposal of an original m...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Marzocchini M,Tatàno F,Moretti MS,Antinori C,Orilisi S

    更新日期:2019-11-01 00:00:00

  • High removal of chemical and biochemical oxygen demand from tequila vinasses by using physicochemical and biological methods.

    abstract::The goal of this research is to find a more effective treatment for tequila vinasses (TVs) with potential industrial application in order to comply with the Mexican environmental regulations. TVs are characterized by their high content of solids, high values of biochemical oxygen demand (BODs), chemical oxygen demand ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Retes-Pruneda JL,Davila-Vazquez G,Medina-Ramírez I,Chavez-Vela NA,Lozano-Alvarez JA,Alatriste-Mondragon F,Jauregui-Rincon J

    更新日期:2014-08-01 00:00:00

  • Correlation between aerosols, deposits and weathering crusts on ancient marbles.

    abstract::The structure and physicochemical characteristics of weathered surfaces of marble in industrial environments can be attributed to the interconnected evolution of the processes taking place at the atmospheric environment--marble interface. The present work is an attempt to correlate the aerosols of a heavily polluted a...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Moropoulou A,Bisbikou K,Van Grieken R,Torfs K,Polikreti K

    更新日期:2001-06-01 00:00:00

  • Field-scale electrolysis/ceramic membrane system for the treatment of sewage from decentralized small communities.

    abstract::The electrolysis process adopting copper electrodes and ceramic membrane with pore sizes of 0.1-0.2 μm were consisted to a system for the treatment of sewage from decentralized small communities. The system was operated under an HRT of 0.1 hour, voltage of 24 V, and TMP of 0.05 MPa. The system showed average removals ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Son DJ,Kim WY,Yun CY,Kim DG,Chang D,Sunwoo Y,Hong KH

    更新日期:2018-08-01 00:00:00

  • Fast start-up and controlled operation during a long-term period of a high-rate partial nitrification activated sludge system.

    abstract::Partial nitrification of a high-strength ammonium wastewater (1150 +/- 150 mg N-NH4(+) L(-1)), mimicking reject water, was achieved in an activated sludge pilot plant with a configuration of three continuous reactors in series plus a settler. Stable and robust partial nitrification was maintained during 800 days of op...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Torà JA,Lafuente J,Carrera J,Baeza JA

    更新日期:2012-06-01 00:00:00

  • Polychlorinated biphenyl detection in organic solvents with paper-based analytical devices.

    abstract::Sample pretreatment process is usually performed before real sample detection. Extraction is one of the most prevalent pretreatment methods. Due to the unequal solubility in two liquid phases, target is extracted (usually from water to organic phase) and further detected with laboratory instruments. Although the analy...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Zhang D,Wang Y,Li C,Zhang X

    更新日期:2019-10-29 00:00:00

  • Two-step extraction method for lead isotope fractionation to reveal anthropogenic lead pollution.

    abstract::This study developed the 2-step extraction method which eluted the Pb adsorbing on the surface of sediments in the first solution by aqua regia and extracted the Pb absorbed inside particles into the second solution by mixed acid of nitric acid, hydrofluoric acid and hydrogen peroxide solution. We applied the method t...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Katahira K,Moriwaki H,Kamura K,Yamazaki H

    更新日期:2019-11-01 00:00:00

  • Visible-light Bi-Fe-Nb-O photoanodes for solar-light driven hydrogen production.

    abstract::Currently, CO2 emission is the main cause of climate change and its various related environmental impacts. Therefore, we have as a prime the development of clean sources of energy. The hydrogen economy is very attractive in this regard, however, when generated from the methane reform, there are also large-scale CO2 em...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Scharnberg ARA,Berutti FA,Alves AK

    更新日期:2020-05-04 00:00:00

  • Fate of return activated sludge after ozonation: an optimization study for sludge disintegration.

    abstract::The effects of ozonation on sludge disintegration should be investigated before the application of ozone during biological treatment, in order to minimize excess sludge production. In this study, changes in sludge and supernatant after ozonation of return activated sludge were investigated for seven different ozone do...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Demir O,Filibeli A

    更新日期:2012-09-01 00:00:00

  • Absorption of a linear (L2) and a cyclic (D4) siloxane using different oils: application to biogas treatment.

    abstract::Hydrophobic volatile methyl siloxanes (VMS), such as hexamethyldisiloxane (L2) and octamethylcyclotetrasiloxane (D4), present a low solubility in water. An alternative treatment by absorption into hydrophobic absorbents was therefore studied. For this purpose, three different absorbents, motor oil, cutting oil and a w...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Rojas Devia C,Subrenat A

    更新日期:2013-11-01 00:00:00

  • Removal of road deposited sediments by sweeping and its contribution to highway runoff quality in Korea.

    abstract::Highway runoff is known to be an important non-point source (NPS), increasing the load of pollutants in receiving water. For reducing NPS pollutants in runoff, removal of road deposited sediment (RDS) by sweeping is considered effective. However, the contribution of sweeping to the improvement of runoff quality has no...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Kim DG,Jeong K,Ko SO

    更新日期:2014-09-01 00:00:00

  • Hydrocarbon degradation by a new Pseudomonas sp., strain RW-II, with polycationic surfactant to modify the cell hydrophobicity.

    abstract::Pseudomonas putida RW-II isolated from petroleum refinery wastewater was tested for hydrocarbon degradation potential in the presence of polycationic surfactant, cetyl trimethylammonium bromide (CTAB). The effects of CTAB on growth profile, cell surface hydrophobicity, cell adhesion, zeta potential and hydrocarbon bio...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Yalçin E,Cavuşoğlu K,Ozen E

    更新日期:2011-12-01 00:00:00

  • Comparative enzyme inhibitive methanol production by Methylosinus sporium from simulated biogas.

    abstract::Methane in a simulated biogas converting to methanol under aerobic condition was comparatively assessed by inhibiting the activity of methanol dehydrogenase (MDH) of Methylosinus sporium using phosphate, NaCl, NH4Cl or EDTA in their varying concentrations. The highest amount of methane was indistinguishably diverted a...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Yoo YS,Han JS,Ahn CM,Kim CG

    更新日期:2015-03-01 00:00:00

  • One-step fabrication of recycled Ag nanoparticles/graphene aerogel with high mechanical property for disinfection and catalytic reduction of 4-nitrophonel.

    abstract::Fabrication of smart composites with expected removal property and excellent recycle performance for micro-pollutants including microbes and organic contaminants without formation of second-pollutants is highly desired. In this work, Ag nanoparticles (Ag NPs) homogenously loaded on graphene aerogel (GA) as Ag NPs/GA w...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Zhang Y,Yang JE,Fu ML,Yuan B,Gupta K

    更新日期:2019-11-01 00:00:00

  • The role of quinone cycle in Fe2+-H2O2 system in the regeneration of Fe2.

    abstract::The reaction between Fe2+ and H2O2 generates highly reactive ·OH. However, the weak conversion from Fe3+ to Fe2+ limits its continuous reaction. Here, the difference between the Fenton system and modified Fenton system for the regeneration of Fe2+ was analyzed. A UV-vis spectrometer and redox potential measurements we...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Zhou W,Gao J,Zhao H,Meng X,Wu S

    更新日期:2017-08-01 00:00:00

  • Sewage sludge ash to phosphate fertilizer by chlorination and thermal treatment: residence time requirements for heavy metal removal.

    abstract::Heavy metal removal from sewage sludge ash can be performed by mixing the ash with environmentally compatible chlorides (e.g. CaCl2 or MgCl2) and water, pelletizing the mixture and treating the pellets in a rotary reactor at about 1000 degrees C. Thermogravimetry-mass spectroscopy, muffle oven tests (500-1150 degrees ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Nowak B,Wegerer H,Aschenbrenner P,Rechberger H,Winter F

    更新日期:2012-10-01 00:00:00

  • Removal of phosphate from greenhouse wastewater using hydrated lime.

    abstract::Phosphate (P) contamination in nutrient-laden wastewater is currently a major topic of discussion in the North American greenhouse industry. Precipitation of P as calcium phosphate minerals using hydrated lime could provide a simple, inexpensive method for retrieval. A combination of batch experiments and chemical equ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Dunets CS,Zheng Y

    更新日期:2014-11-01 00:00:00

  • Adsorption of Methylene blue and Congo red from aqueous solution using synthesized alumina-zirconia composite.

    abstract::Alumina-zirconia (Al2O3-ZrO2) composite was prepared by combustion method and used to remove Congo red and Methylene blue from aqueous solutions. It was characterized using SEM-EDS, XRD and gas adsorption techniques. The results obtained from gas adsorption and SEM agree with each other, showing meso- and macro-porosi...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Adesina AO,Elvis OA,Mohallem NDS,Olusegun SJ

    更新日期:2019-08-13 00:00:00

  • Dissolved air flotation (DAF) for primary and tertiary treatment of municipal wastewaters.

    abstract::Tertiary treatment of municipal wastewater by dissolved air flotation was studied on a pilot-scale. The effects of coagulant dose, flocculation pattern, dispersion water recycle ratio and hydraulic surface load on process performance were evaluated. The treatment of primary effluents by dissolved air flotation was inv...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Koivunen J,Heinonen-Tanski H

    更新日期:2008-01-01 00:00:00

  • The effects of anionic and non-ionic surfactant on anaerobic co-digestion of sludge, food wastes and green wastes.

    abstract::Surfactants are widely used and discharged into wastewater treatment plants, which might influence the anaerobic digestion (AD) treatment of municipal waste. In this study, the effects of typical anionic surfactants sodium dodecyl benzene6 sulfonate (SDBS) and non-ionic surfactants APG, on mesophilic anaerobic co-dige...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Sun J,Zhang Y,Pan X,Zhu G

    更新日期:2019-08-01 00:00:00

  • Microemulsion-enhanced remediation of soils contaminated with organochlorine pesticides.

    abstract::Soil contaminated by organic pollutants, especially chlorinated aromatic compounds such as DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane), is an environmental concern because of the strong sorption of organochlorine pesticide onto the soil matrix and persistence in the environment. The remediation of organochlori...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Zhang Y,Wong JW,Zhao Z,Selvam A

    更新日期:2011-12-01 00:00:00

  • Degradation of diclofenac by Fe(II)-activated peracetic acid.

    abstract::In this study, peracetic acid (PAA) activated by Fe(II) was proposed to remove diclofenac (DCF) in polluted water. It was found that Fe(II)/PAA system could effectively remove DCF at neutral condition, which has a significant advantage over classical Fenton process. According to the result of scavenging experiment, bo...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Wang Z,Shi H,Wang S,Liu Y,Fu Y

    更新日期:2020-04-30 00:00:00

  • Assessment of the estrogenic activity of flue gases from burning processes by means of the yeast based human estrogen receptor (hER) bioassay.

    abstract::Combustion processes are known to produce organic micro-pollutants in the flue gas at concentrations ranging over several orders of magnitude. Some organic micro-pollutants are suspected of being pseudo-estrogens and as such they can affect the public health. In this study, the possible application of the yeast based ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Muthumbi W,De Boever P,D'Haese I,D'Hooge W,Top EM,Pieters JG,Comhaire F,Verstraete W

    更新日期:2002-03-01 00:00:00

  • Evaluation of hybrid neutralization/biosorption process for zinc ions removal from automotive battery effluent by dolomite and fish scales.

    abstract::This work focused in the evaluation of Oreochromis niloticus fish scales (FS) as biosorbent material in the removal of Zn from a synthetic effluent based on automotive battery industry effluent and, further, a hybrid neutralization/biosorption process, aiming at a high-quality treated effluent, by a cooperative use of...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Ribeiro C,Scheufele FB,Alves HJ,Kroumov AD,Espinoza-Quiñones FR,Módenes AN,Borba CE

    更新日期:2019-07-01 00:00:00

  • Olive oil mill wastewaters pollution abatement by physical treatments and biodegradation with Phanerochaetae chrysosporium.

    abstract::This paper discusses decolorization and chemical oxygen demand (COD) abatement in olive mill wastewaters (OMW) by Phanerochaetae chrysosporium grown in static, suspended and immobilised cultures. When P chrysosporium is used in cultures, no decolorization of crude OMW is observed. Decolorization occurs only after remo...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Mebirouk M,Sbai L,Lopez M,Gonzalez J

    更新日期:2006-12-01 00:00:00

  • Paradox of "ideal correlations": improved model for air half-life of persistent organic pollutants.

    abstract::The persistence of organic pollutants is an important environmental property due to the extended possibility to have an impact of corresponding substances. In many cases, the experimental values of the thousands of contaminants are missing. The object of the study is novel computational modeling for air pollutions. Qu...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Toropova AP,Toropov AA,Lombardo A,Lavado G,Benfenati E

    更新日期:2021-01-27 00:00:00

  • Pilot-scale study for phosphorus recovery by sludge acidification and dewatering.

    abstract::Phosphorus recovery from wastewater is a focus area in Denmark; the aim is to recover at least 80% of the phosphorus. In order to extract phosphorus, surplus sludge from wastewater treatment plants was acidified (pH 2-4) to increase the dissolved phosphorus concentration, which then can be precipitated and recovered. ...

    journal_title:Environmental technology

    pub_type: 杂志文章


    authors: Quist-Jensen CA,Wybrandt L,Løkkegaard H,Antonsen SB,Christensen ML

    更新日期:2020-09-01 00:00:00