Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Photocatalytic degradation of benzene in gas phase by .

Photocatalytic degradation of benzene in gas phase by .

2.3. Photocatalytic activity measurement The gas-phase photocatalytic degradation of benzene was conducted with a fixed bed tubular quartz reactor operated in a continuous-flow mode. The weights of the catalysts were 0.3 g, with a particle size of 0.21–0.25 mm. The light source was provided by four 4 W UV lamps with a wavelength

Removal of gas-phase benzene in an immobilized .

Removal of gas-phase benzene in an immobilized .

Removal of gas-phase benzene in an immobilized photocatalytic reactor. The photocatalytic degradation of gas-phase benzene was studied in an immobilized – annular tube reactor using titanium dioxide as the photocatalyst. The main and interaction effects due to the influence of essential process parameters such as catalyst load (5 to 20 g·m .

KAUST Catalysis Center - Photocatalysis Laboratory

KAUST Catalysis Center - Photocatalysis Laboratory

Gas Flow reactors Isothermal Fixed bed flow reactors are used as laboratory scale reactors for catalytic screening and kinetic studies of different solid catalysts for gas phase reactions. These are generally operated under dynamic conditions, whereby the reactants are continuously fed to the reactor and products are continuously collected for analysis.

Development of a tubular continuous flow reactor for the .

Development of a tubular continuous flow reactor for the .

A self-made, low-cost tubular reactor for the gas-phase photocatalytic CO 2 reduction was developed. The resulting flow conditions cause an intensive interaction between the reactants in the gas-phase and the fixed bed photocatalyst. This approach is used to test the scalability of tubular reactors for the photocatalytic CO 2 reduction.

Photocatalytic Degradation of Air Borne Pollutants .

Photocatalytic Degradation of Air Borne Pollutants .

Abstract. Heterogeneous photocatalytic oxidation of organic air contaminants is a promising technology that offers distinct advantages. These advantages include potential lower operating costs, the elimination of treatment reagents or electron acceptors, the possible recovery, regeneration and reuse of the photocatalyst and finally its widespread applicability for the complete mineralization .

Efficient Photocatalytic Oxidation of Gaseous Toluene in a .

Efficient Photocatalytic Oxidation of Gaseous Toluene in a .

Conventional gas-solid photocatalytic oxidation (SPCO) of VOCs has drawbacks such as accumulation of intermediates and catalytic deactivation. In this study, gas-liquid photocatalytic oxidation (LPCO) was exploited to improve the catalytic activity and stability by continuously bubbling VOCs into wa .

Recent Advances in Photocatalytic Reactors.

Recent Advances in Photocatalytic Reactors.

May 24, 2015 · Paper Degradation of Reactor Catalyst Light source Operating Conditions Result Abhang et al. (2011) Phenol Three phase fluidized bed type of reactor (TPFBR) TiO2 coated on solid silica gel particles Four lamps of 8 W P = 1 atm T = 25 °C t = 2 h 95.27% within 1.5 h Shengyong et al. (2012) Hexachlorobenzene Quartz photocatalytic reactor Nano .

A photocatalytic impeller reactor for gas phase .

A photocatalytic impeller reactor for gas phase .

This reactor employs the use of photocatalytic impellers to aid the mass transport of gaseous organic compounds during photocatalytic reactions. Experiments involving toluene vapour photo-oxidation showed the reactor configuration is susceptible to catalyst deactivation even at low concentrations if treated for prolonged periods.

RECOVERY OF HYDROGEN FROM HYDROGEN SULPHIDE .

RECOVERY OF HYDROGEN FROM HYDROGEN SULPHIDE .

photocatalysts. The photocatalytic reactor was illuminated by visible lamps with a maximum emission spectrum at 270 nm. The experimental test was performed in a laboratory. Gas samples were collected and analyzed by gas chromatography (TCD). The H 2 S gas sample is allowed to enter into the reactor. The reactor is allowed to run for recovery of

RECOVERY OF HYDROGEN FROM HYDROGEN SULPHIDE USING GAS .

RECOVERY OF HYDROGEN FROM HYDROGEN SULPHIDE USING GAS .

The gas phase tubular photocatalytic reactor was fabricated. The optimized for maximum hydrogen production of 333.41 mL was found to be 2 g catalyst dosage, 722 W/m 2 light intensity and 60 min of irradiation period in gas phase photocatalytic splitting of hydrogen from hydrogen sulfide.

Gas-phase photocatalysis in μ-reactors | Request PDF

Gas-phase photocatalysis in μ-reactors | Request PDF

The reactor contains 1.95 g of TiO2 in contact with the air stream per liter of reactor volume and the illuminated catalyst surface area, in contact with the gas phase, per reactor volume was .

Photocatalytic degradation of volatile pollutants

Photocatalytic degradation of volatile pollutants

Das J, Rene ER, Krishnan J. Photocatalytic degradation of volatile pollutants. J Environ Chem Toxicol. 2018;2(2):57-59. ABSTRACT Photocatalytic oxidation is a promising technology for the removal of gas-phase volatile organic compounds. This technique is cost-efficient, simple to

Recent Advances in Photocatalytic Reactors.

Recent Advances in Photocatalytic Reactors.

May 24, 2015 · Paper Degradation of Reactor Catalyst Light source Operating Conditions Result Abhang et al. (2011) Phenol Three phase fluidized bed type of reactor (TPFBR) TiO2 coated on solid silica gel particles Four lamps of 8 W P = 1 atm T = 25 °C t = 2 h 95.27% within 1.5 h Shengyong et al. (2012) Hexachlorobenzene Quartz photocatalytic reactor Nano .

Degradation of gas-phase trichloroethylene over thin-film .

Degradation of gas-phase trichloroethylene over thin-film .

Jul 30, 2009 · The present paper examined the photocatalytic degradation (PCD) of gas-phase trichloroethylene (TCE) over thin-film TiO2. A large-scale treatment of TCE was carried out using scale-up continuous flow photo-reactor in which nine reactors were arranged in parallel and series. The parallel or serial arrangement is a significant factor to determine .

A review on photocatalysis for air treatment: From .

A review on photocatalysis for air treatment: From .

4. Design of gas-phase photocatalytic reactors. Gas phase photocatalysis is a process that uses the synergetic interaction of light, a semiconductor catalyst and an oxidizing agent (O 2 or H 2 O) to decompose organic pollutants in air. Photocatalysis presents numerous advantages over its conventional counterparts such as adsorption or filtration.

Solar-Powered Photocatalytic Fiber-Optic Cable Reactor for .

Solar-Powered Photocatalytic Fiber-Optic Cable Reactor for .

The system is also compared to another fiber-optic cable reactor having a 50 percent higher photocatalytic surface area-to-reactor volume ratio to investigate mass transport limitations. Reaction rates for the oxidation of 4-chlorophenol of 25 and 12 μMmin −1 were measured for solar and artificial UV sources, respectively.

The Rational Design of a Single‐Component Photocatalyst .

The Rational Design of a Single‐Component Photocatalyst .

Dec 10, 2014 · In this work we report gas‐phase photocatalytic conversion of 13 CO 2 in the presence of H 2 to generate 13 CO at a rate as high as 0.25 μmol g −1 h −1 in a batch reactor at 150 °C under simulated solar illumination intensities of 2200 W m −2 on hydroxylated indium oxide nanoparticle films.

Formal Quantum Efficiencies for the Photocatalytic .

Formal Quantum Efficiencies for the Photocatalytic .

The photocatalytic reduction of CO 2 to fuels, or useful products, is an area of active research. In this work, nanoengineering and surface modification of titania were investigated as approaches for improving the CO 2 reduction efficiency in a fixed-bed gas phase batch photoreactor under UV–vis irradiation. Titania nanotubes were prepared by a hydrothermal method, and TiO 2 (P25) was .

Photocatalytic degradation of H2S in the gas-phase using a .

Photocatalytic degradation of H2S in the gas-phase using a .

For the photocatalytic degradation of the hydrogen sulphide (H 2 S) in the gas-phase it was developed a rectangular reactor, coated with acrylic paint supported on fiber cement material. The surface formed by the paint coverage was characterized structural and morphologically by scanning electron microscopy with energy dispersive X-ray and X-ray diffraction analysis.

KINETIC MODELING AND EXPERIMENTAL VALIDATION OF A .

KINETIC MODELING AND EXPERIMENTAL VALIDATION OF A .

Abstract. This work presents a modeling procedure for a tall photocatalytic fluidized bed photoreactor used for the photocatalytic oxidation of n-hexane on the anatase TiO 2 surface. The modeling strategy split the reactor into two parts: a lower dense phase, with high solids concentration behaving as a bubbling bed treated as a continuous stirred tank reactor (CSTR); and an upper lean phase .

photochemical-reactor

photochemical-reactor

Click "+" to select products and contact the supplier Photochemical Reactor. TOPTION photochemical reactor is is mainly applied to research gas / liquid phases, fixed / simulated visible light, could reaction vessel load TiO2, Photochemical reaction under conditions of photocatalyst,etc. Be widely used in fields of Chemosynthesis, environment protection, life science, etc.

Gas phase photocatalytic water splitting in silicon based .

Gas phase photocatalytic water splitting in silicon based .

Gas phase photocatalytic water splitting in silicon based µ-reactors Dionigi, Fabio Publication date: 2012 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Dionigi, F. (2012). Gas phase photocatalytic water splitting in silicon based µ-reactors. Technical University of Denmark.

Magnetically Agitated Photocatalytic Reactor for .

Magnetically Agitated Photocatalytic Reactor for .

A magnetically agitated photocatalytic reactor (MAPR) has been developed and assessed for oxidation of phenol. The MAPR uses a titanium dioxide composite photocatalyst with a ferromagnetic barium ferrite core. The catalyst motion was controlled with a dual-component magnetic field. First, a permanen .

Gas‐Phase Photooxidation: Reactors and Materials - Bechec .

Gas‐Phase Photooxidation: Reactors and Materials - Bechec .

Photocatalytic vs. photosensitizing materials to be used for gas‐phase photooxidation and photooxygenation, respectively, are described. An overview is given on reactive oxygen species specific to photocatalysis and photosensitization as well as on various kinds of gas‐phase reactors and photocatalytic materials in order to illustrate the great number of possible configurations and .

uv photocatalytic reactor, uv photocatalytic reactor .

uv photocatalytic reactor, uv photocatalytic reactor .

842 uv photocatalytic reactor products are offered for sale by suppliers on, of which reactors accounts for 4%, quartz tubes accounts for 1%, and gas disposal accounts for 1%. A wide variety of uv photocatalytic reactor options are available to you, There are 44 suppliers who sells uv photocatalytic reactor on, mainly .

Photocatalytic Gas Phase Reactions | Chemistry of Materials

Photocatalytic Gas Phase Reactions | Chemistry of Materials

Photocatalytic gas phase reactions represent a less explored yet promising direction within the highly active research area of photocatalysis. While photocatalytic liquid phase reactions are typically performed in water, photocatalytic gas phase reactions focus on gaseous and vaporized compounds. With this change in reaction environment, it is possible to address completely new questions and .

Photocatalytic Reaction of Gas-Phase Naphthalene on Paint .

Photocatalytic Reaction of Gas-Phase Naphthalene on Paint .

The photocatalytic destruction of gaseous naphthalene on paint- and sunscreen-coated surfaces has been demonstrated through gas-phase experiments in batch reactors. The fast rate constants, short half-lives, and high fractional conversions demonstrate the efficiency of this process in degrading a large, semi-volatile organic compound on these .

Photocatalytic ·. n of

Photocatalytic ·. n of

• The photocatalytic oxidation of BTEX has been studied in the aqueous phase, 2 ' 3 ' 4 however, a study by Turchi et al. 5 showed a more economical system would involve stripping organic contaminants from the aqueous phase and treating the resulting gas stream. Another recent study by

Photocatalytic oxidation of H2S in the gas phase over TiO2 .

Photocatalytic oxidation of H2S in the gas phase over TiO2 .

To promote the photocatalytic oxidation (PCO) of hydrogen sulfide (H 2 S) in the gas phase, TiO 2-coated glass fiber filters were packed in an annular photoreactor.Glass fibers coated with TiO 2 thin films were characterized structurally and morphologically by field emission gun scanning electron microscopy (FEG-SEM), scanning electron microscopy (SEM) coupled with energy-dispersive X-ray .

Efficient Photocatalytic Oxidation of Gaseous Toluene in a .

Efficient Photocatalytic Oxidation of Gaseous Toluene in a .

Conventional gas-solid photocatalytic oxidation (SPCO) of VOCs has drawbacks such as accumulation of intermediates and catalytic deactivation. In this study, gas-liquid photocatalytic oxidation (LPCO) was exploited to improve the catalytic activity and stability by continuously bubbling VOCs into wa .