CN101940875A - Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp - Google Patents
Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp Download PDFInfo
- Publication number
- CN101940875A CN101940875A CN 201010516920 CN201010516920A CN101940875A CN 101940875 A CN101940875 A CN 101940875A CN 201010516920 CN201010516920 CN 201010516920 CN 201010516920 A CN201010516920 A CN 201010516920A CN 101940875 A CN101940875 A CN 101940875A
- Authority
- CN
- China
- Prior art keywords
- low pressure
- pressure mercury
- mercury lamp
- methane
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp. According to the invention, photocatalysis decomposing of methane is implemented by using a low pressure mercury lamp (dominant wavelength is 253.7nm) as light source and TiO2 as catalyst in a manner of intermittent illumination, i.e. the lamp is turned on for a certain time, then turned off for a period of time and turned off once again. The method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp realizes 78-92% of the conversion rate and 10.15-884mg/ of the conversion speed, and has the advantages of fast conversion speed, high conversion rate, low conversion cost, etc.
Description
Technical field
The present invention relates to the method that high concentration methane blended gas is decomposed in a kind of normal temperature and pressure photocatalysis fast.
Background technology
Methane is a kind of greenhouse gases, its CH
3-H bond dissociation energy is 435 kJ/mol, is difficult for transforming.TiO
2Be that a kind of activity is very high, non-secondary pollution and cheap and maneuverable catalysis material.Mainly be to utilize vacuum-ultraviolet light (dominant wavelength is 185nm) in the light-catalysed research of methane at present as light source, TiO
2Be catalyst, and the mode that adopts is that continuous photodissociation is promptly opened vacuum UV lamp continuously in entire reaction course, the method of this vacuum UV lamp illumination can not realize in the application of reality: the one, because the aerial transmission capacity of vacuum-ultraviolet light is very weak, and price is more expensive; The 2nd, because gas has very big influence in adsorbing in advance of catalyst surface to catalytic efficiency, the transformation efficiency of methane is lower.Zhang Pengyi is (being that gas flow rate is that 8L/min, humidity are 26%-30%RH) under optimum experimental condition, and (can handle the methane concentration scope is about 0.01%, and the methane initial concentration is 60mg/m to adopt vacuum-ultraviolet light continuous illumination degraded to contain the low-concentration methane air
3), the conversion rate of methane only is 7mg/
(China Environmental Science,, the 26th volume first phase: 653-656) in 2006.
Summary of the invention
Of the present invention in order to solve the above problems, provide a kind of normal temperature and pressure to utilize low pressure mercury lamp to be aided with TiO
2The method of the quick photocatalysis Decomposition high concentration of photochemical catalyst methane blended gas.
Technical scheme of the present invention
Utilize low pressure mercury lamp (dominant wavelength is 253.7nm) and TiO
2The application of organic pollution aspects such as photocatalysis to degrade organic matter such as formaldehyde, chloroform, Polychlorinated biphenyls, organic phosphorus compound, polycyclic aromatic hydrocarbon is a lot, and photolytic process all is continuous illumination.But because methane is very stable, present this method but yet there are no report aspect the methane photocatalytic degradation.
The present invention utilizes the mechanism of low pressure mercury lamp photocatalytic degradation methane to be: TiO
2Be a kind of N-type semiconductor, have photosensitive conducting, generally be full of the low energy valence band (VB) of electronics and high energy conduction band (CB) formation of a sky, separate by the forbidden band between valence band and the conduction band by one.Can band and conduction band between band-gap energy be 3.2eV, its energy is equivalent to the ultraviolet light that wavelength is 387.5nm, when semiconductor is penetrated in the illumination that is equal to or greater than energy gap (Eg) when used energy, the electronics (e on the valence band
-) being excited transits to conduction band, produces photohole (h on valence band
+):
, and under electric field action, separate and move to particle surface.Photohole has the extremely strong electronic capability that gets, and can capture the electronics in semiconductor grain surface organic matter or the solvent, makes the not light absorbing material of script all be activated oxidation, therefore has very strong oxidability, with the OH of its surface absorption
-And H
2The O molecular oxygen changes into free radical OH, and the hydroxyl radical free radical attack methane molecule of generation makes it oxidation and decomposition, finally makes the methane degraded.
Method of the present invention is earlier to the ventilation of reaction vessel the inside, and adjustments of gas humidity, when conditions such as gas content, humidity all reach stable after, opening low pressure mercury lamp reacts, close low pressure mercury lamp after reaching certain hour when turning on light, turn off the light and turn on light again after reaching certain hour, repeat this process, simultaneously in whole process respectively with the content and the humidity of methane in gas-chromatography and the hygrometer record container.
Principle schematic such as Fig. 1 of the device that a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas of the present invention is used.Comprise among Fig. 1 that reactor 2, column type are coated with TiO
2Titanium mesh plate 3, low pressure mercury lamp 4, voltage-stablizer 5,220V power supply 6, Hygrothermograph inductor 8, Hygrothermograph data logger 9 have air inlet 1 and air hatch 7 on the reactor, the cylindrical TiO that is coated with
2Titanium mesh plate 3 covers the luminous component of low pressure mercury lamp, and voltage-stablizer 5 is pressed for low pressure mercury lamp 4 provides galvanic current, and Hygrothermograph inductor 8 and Hygrothermograph data logger 9 detect and write down the temperature and the humidity of gaseous mixture in the reactor in real time.
A kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas specifically comprises the steps:
(1), reaction vessel is installed catalyst and be coated with TiO
2The titanium half tone feeds the gaseous mixture of being made up of methane and carbon dioxide inside, adjustments of gas content and humidity;
CH wherein
4Content accounts for 10% ~ 90%(volume ratio), CO
2Account for 90% ~ 10%(volume ratio), and adjustments of gas relative humidity is 15%;
Described catalyst is coated with TiO
2The titanium half tone is the column type cover, and diameter is 5cm, highly is 12.5cm, and wherein said catalyst is for being coated with TiO
2The TiO that is coated with in the titanium half tone
2The ratio of the mist volume (being the dischargeable capacity of reaction vessel) formed by itself and methane and carbon dioxide of amount be 0.06g/L;
(2), behind methane content and the moisture stable, sealed reactor, ON/OFF low pressure mercury lamp alternately, the open and close time of low pressure mercury lamp is 5～30min in each switch periods, and can be unequal, and writes down methane content and humidity in each process;
Described low pressure mercury lamp dominant wavelength is 253.4nm, power 20W;
(3), when accumulative total after lighting time reaches certain hour, reaction finishes, and record methane content and humidity, calculates methane degradation rate and efficient.
Utilize in the method for the high methane concentration gaseous mixture of the quick photocatalysis Decomposition of low pressure mercury lamp at this, catalyst is coated with TiO
2The titanium half tone is reusable, and can loss of activity.
Beneficial effect of the present invention
A kind of method of utilizing the quick photocatalysis Decomposition methane of low pressure mercury lamp of the present invention compared with prior art because it utilizes low pressure mercury lamp (dominant wavelength is 253.7nm) as light source, to be coated with TiO
2The titanium half tone is a catalyst, adopt intermittent illumination mode (promptly turn on light the regular hour, a period of time of turning off the light then turns on light again again) to carry out the photocatalysis of methane, be applicable to the conversion of methane in the high concentration methane blended gas, conversion ratio is 78～92%, and conversion rate is 10.15～884mg/
, promptly having the conversion ratio height, conversion rate is fast, and transforms advantage with low cost etc.
Description of drawings
The principle schematic of the device that Fig. 1, a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas of the present invention are used.
The specific embodiment
Below by embodiment the present invention is further set forth, but do not limit the present invention.
The assay method of methane degradation rate and degradation rate: adopt the gas chromatography determination methane concentration, splitter is a stainless steel, and detector is the thermal conductance type;
Methane primary quantity * 100% before reacting in methane reduction/reactor before and after the reaction in degradation rate (%)=reactor;
Degradation rate (%)=degradation rate (%)/(reactor effective volume * total reaction time).Wherein total reaction time comprises light application time and illumination intermittent time.
Embodiment 1
This mist utilization be the high-pressure cylinder gaseous mixture, CH in the gas
4Content accounts for 90%, CO
2Account for 10%;
Adopt the glass reaction device, the effective volume of device is 2.2L; The low pressure mercury lamp dominant wavelength of utilizing is 253.4nm, power 20W; The employing radius is 5cm, highly covers the luminous component of low pressure mercury lamp for the cylindrical titanium mesh plate of 12.5cm; Adopt the humiture recorder of the big instrument plant in Hangzhou pool to write down temperature and humidity situation of change in the entire reaction course in addition.
The first step: connect experimental provision, and install catalyst and be coated with TiO
2Behind the titanium half tone, mist is fed in the reaction vessel, the content of adjustments of gas and humidity are measured the gas of gas port, treat that the methane content in the container reaches 0.6542g/L, and relative humidity reaches 15% simultaneously, stop air inlet and with air inlet and gas outlet sealing.
Second step: open low pressure mercury lamp and carry out light-catalyzed reaction, when continuous lighting time reached 10min, the gas that takes out gas port utilized gas chromatograph to measure, and after noting humidity and having got gas, closed low pressure mercury lamp.
The 3rd step: when the time of turning off the light reaches 10min, take out the gas of gas port again and measure, note gas humidity simultaneously, open low pressure mercury lamp then.
The 4th step: repeat third and fourth step, stop reaction after the accumulative total lighting time reaches 150min, this moment, the content of methane was 0.0706g/L.
Calculating methane conversion is 89.21%, and conversion rate is 884mg/
Conversion ratio is higher and conversion rate is very fast.Methane conversion speed 884mg/ wherein
Be higher than China Environmental Science far away, 2006, the 26th volume first phase: the employing vacuum-ultraviolet light continuous illumination degraded that 653-656 reported contains the low-concentration methane air, and (the methane initial concentration was 60mg/m
3, volume ratio is less than 0.01%) in the conversion rate 7mg/ of methane
, explanation thus, a kind of method of utilizing the quick photocatalysis Decomposition methane of low pressure mercury lamp of the present invention compared with prior art because it utilizes low pressure mercury lamp (dominant wavelength is 253.7nm) as light source, to be coated with TiO
2The titanium half tone is a catalyst, adopt intermittent illumination mode (promptly turn on light the regular hour, a period of time of turning off the light then turns on light again again) to carry out the photocatalysis of methane, be applicable to the conversion of methane in the high concentration methane blended gas, it is fast to have conversion rate, transforms the advantage of grade with low cost.
Embodiment 2
This mist utilization be the high-pressure cylinder gaseous mixture, CH in the gas
4Content accounts for 50%, CO
2Account for 50%;
Adopt the glass reaction device, the effective volume of device is 2.2L; The low pressure mercury lamp dominant wavelength of utilizing is 253.4nm, power 20W; The employing radius is 5cm, highly covers the luminous component of low pressure mercury lamp for the cylindrical titanium mesh plate of 12.5cm; Adopt the humiture recorder of the big instrument plant in Hangzhou pool to write down temperature and humidity situation of change in the entire reaction course in addition.
The first step: connect experimental provision, and install catalyst and be coated with TiO
2Behind the titanium half tone, mist is fed in the reaction vessel, the content of adjustments of gas and humidity are measured the gas of gas port, treat that the methane content in the container reaches 0.3820g/L, and relative humidity reaches 15% simultaneously, stop air inlet and with air inlet and gas outlet sealing.
Second step: open low pressure mercury lamp and carry out light-catalyzed reaction, when continuous lighting time reached 10min, the gas that takes out gas port utilized gas chromatograph to measure, and after noting humidity and having got gas, closed low pressure mercury lamp.
The 3rd step: when the time of turning off the light reaches 10min, take out the gas of gas port again and measure, note gas humidity simultaneously, open low pressure mercury lamp then.
The 4th step: repeat third and fourth step, stop reaction after the accumulative total lighting time reaches 150min, this moment, the content of methane was 0.0825g/L.
Calculating methane conversion is 78.40%, and conversion rate is 454mg/
Conversion ratio is higher and conversion rate is very fast.Methane conversion speed 454mg/ wherein
Be higher than China Environmental Science far away, 2006, the 26th volume first phase: the employing VUV light degradation that 653-656 reported contains the low-concentration methane air, and (the methane initial concentration was 60mg/m
3, volume ratio is less than 0.01%) in the conversion rate 7mg/ of methane
, explanation thus, a kind of method of utilizing the quick photocatalysis Decomposition methane of low pressure mercury lamp of the present invention compared with prior art because it utilizes low pressure mercury lamp (dominant wavelength is 253.7nm) as light source, to be coated with TiO
2The titanium half tone is a catalyst, adopt intermittent illumination mode (promptly turn on light the regular hour, a period of time of turning off the light then turns on light again again) to carry out the photocatalysis of methane, be applicable to the conversion of methane in the high concentration methane blended gas, it is fast to have conversion rate, transforms the advantage of grade with low cost.
Embodiment 3
This mist utilization be the high-pressure cylinder gaseous mixture, CH in the gas
4Content accounts for 10%, CO
2Account for 90%;
Adopt the glass reaction device, the effective volume of device is 2.2L; The low pressure mercury lamp dominant wavelength of utilizing is 253.4nm, power 20W; The employing radius is 5cm, highly covers the luminous component of low pressure mercury lamp for the cylindrical titanium mesh plate of 12.5cm; Adopt the humiture recorder of the big instrument plant in Hangzhou pool to write down temperature and humidity situation of change in the entire reaction course in addition.
The first step: connect experimental provision, and install catalyst and be coated with TiO
2Behind the titanium half tone, mist is fed in the reaction vessel, the content of adjustments of gas and humidity are measured the gas of gas port, treat that the methane content in the container reaches 0.0073g/L, and relative humidity reaches 15% simultaneously, stop air inlet and with air inlet and gas outlet sealing.
Second step: open low pressure mercury lamp and carry out light-catalyzed reaction, when continuous lighting time reached 10min, the gas that takes out gas port utilized gas chromatograph to measure, and after noting humidity and having got gas, closed low pressure mercury lamp.
The 3rd step: when the time of turning off the light reaches 10min, take out the gas of gas port again and measure, note gas humidity simultaneously, open low pressure mercury lamp then.
The 4th step: repeat third and fourth step, stop reaction after the accumulative total lighting time reaches 150min, this moment, the content of methane was 0.0006g/L.
Calculating methane conversion is 91.78%, and conversion rate is 10.15mg/
Conversion ratio is higher and conversion rate is very fast.Methane conversion speed 10.15mg/ wherein
Be higher than China Environmental Science, 2006, the 26th volume first phase: the employing VUV light degradation that 653-656 reported contained the conversion rate 7mg/ of the airborne methane of low-concentration methane
, explanation thus, a kind of method of utilizing the quick photocatalysis Decomposition methane of low pressure mercury lamp of the present invention compared with prior art because it utilizes low pressure mercury lamp (dominant wavelength is 253.7nm) as light source, to be coated with TiO
2The titanium half tone is a catalyst, adopt intermittent illumination mode (promptly turn on light the regular hour, a period of time of turning off the light then turns on light again again) to carry out the photocatalysis of methane, be applicable to the conversion of methane in the high concentration methane blended gas, it is fast to have conversion rate, transforms the advantage of grade with low cost.
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (5)
1. a method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas is characterized in that comprising the steps:
(1), place catalyst in the reaction vessel after, feed the mist that methane and carbon dioxide are formed again in the reactor, adjustments of gas relative humidity is 15%;
The gaseous mixture that described methane and carbon dioxide are formed, CH wherein by volume
4Content accounts for 10% ~ 90%, CO
2Account for 90% ~ 10%;
Described catalyst is for being coated with TiO
2The titanium half tone
(2), behind methane content and the moisture stable, sealed reactor, alternately the ON/OFF low pressure mercury lamp is promptly turned on light a period of time earlier, turn off the light a period of time again, turn on light a period of time again, turn off the light a period of time again, carry out this process repeatedly, after the accumulative total lighting time reached certain hour, reaction finished;
Wherein said low pressure mercury lamp dominant wavelength is 253.4nm, and power is 20W.
2. a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas as claimed in claim 1 is characterized in that the described catalyst of step (1) is for being coated with TiO
2The TiO that is coated with in the titanium half tone
2The ratio of the mist volume formed by itself and methane and carbon dioxide of amount be 0.06g/L.
3. a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas as claimed in claim 1 is characterized in that step (1) is described
Be coated withTiO
2The titanium half tone is the column type cover, to cover the luminous component of low pressure mercury lamp.
4. a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas as claimed in claim 1 is characterized in that the described reaction vessel of step (1) is a column type.
5. a kind of method of utilizing the quick photocatalysis Decomposition high concentration of low pressure mercury lamp methane blended gas as claimed in claim 1, it is characterized in that the alternately ON/OFF low pressure mercury lamp described in the step (2), the open and close time of low pressure mercury lamp is 5～30min in each switch periods, and can be unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010516920A CN101940875B (en) | 2010-10-25 | 2010-10-25 | Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010516920A CN101940875B (en) | 2010-10-25 | 2010-10-25 | Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101940875A true CN101940875A (en) | 2011-01-12 |
| CN101940875B CN101940875B (en) | 2012-10-17 |
Family
ID=43433198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010516920A Expired - Fee Related CN101940875B (en) | 2010-10-25 | 2010-10-25 | Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101940875B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285799A (en) * | 2013-06-18 | 2013-09-11 | 上海电力学院 | Photocatalytic reactor for increasing photocatalytic degradation rate of methane and application of photocatalytic reactor |
| CN104324673A (en) * | 2014-10-20 | 2015-02-04 | 内蒙古师范大学 | Rotary drum type photo-catalytic reaction device |
| CN104710279A (en) * | 2013-12-16 | 2015-06-17 | 裴振昭 | Method for preparing methanol through photocatalytic oxidation of methane |
| US20170158502A1 (en) * | 2012-03-14 | 2017-06-08 | Board Of Regents, The University Of Texas System | Photochemical Processes and Compositions for Methane Reforming Using Transition Metal Chalcogenide Photocatalysts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050450A1 (en) * | 1997-11-11 | 2002-05-02 | Newman Gerard K. | Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst |
| CN1657142A (en) * | 2004-12-10 | 2005-08-24 | 清华大学 | Air purifying technology |
| CN1695784A (en) * | 2005-03-30 | 2005-11-16 | 福州大学 | Composite photocatalytic reaction system for eliminating environmental pollutants in air or water efficiently |
| US20090301859A1 (en) * | 2006-04-28 | 2009-12-10 | The United States Of America As Represented By The United States Environmental Protection Agency | Process using compact embedded electron induced ozonation and activation of nanostructured titanium dioxide photocatalyst for photocatalytic oxidation |
| CN101613137A (en) * | 2008-06-25 | 2009-12-30 | 中国科学院大连化学物理研究所 | Reductive pollutants is produced the method for hydrogen simultaneously in the Photocatalytic Activity for Degradation water |
| CN201402227Y (en) * | 2009-03-16 | 2010-02-10 | 西安理工大学 | Photo-catalysis gas purifier |
-
2010
- 2010-10-25 CN CN201010516920A patent/CN101940875B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050450A1 (en) * | 1997-11-11 | 2002-05-02 | Newman Gerard K. | Enhanced oxidation of air contaminants on an ultra-low density UV-accessible aerogel photocatalyst |
| CN1657142A (en) * | 2004-12-10 | 2005-08-24 | 清华大学 | Air purifying technology |
| CN1695784A (en) * | 2005-03-30 | 2005-11-16 | 福州大学 | Composite photocatalytic reaction system for eliminating environmental pollutants in air or water efficiently |
| US20090301859A1 (en) * | 2006-04-28 | 2009-12-10 | The United States Of America As Represented By The United States Environmental Protection Agency | Process using compact embedded electron induced ozonation and activation of nanostructured titanium dioxide photocatalyst for photocatalytic oxidation |
| CN101613137A (en) * | 2008-06-25 | 2009-12-30 | 中国科学院大连化学物理研究所 | Reductive pollutants is produced the method for hydrogen simultaneously in the Photocatalytic Activity for Degradation water |
| CN201402227Y (en) * | 2009-03-16 | 2010-02-10 | 西安理工大学 | Photo-catalysis gas purifier |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170158502A1 (en) * | 2012-03-14 | 2017-06-08 | Board Of Regents, The University Of Texas System | Photochemical Processes and Compositions for Methane Reforming Using Transition Metal Chalcogenide Photocatalysts |
| CN103285799A (en) * | 2013-06-18 | 2013-09-11 | 上海电力学院 | Photocatalytic reactor for increasing photocatalytic degradation rate of methane and application of photocatalytic reactor |
| CN103285799B (en) * | 2013-06-18 | 2015-03-18 | 上海电力学院 | Photocatalytic reactor for increasing photocatalytic degradation rate of methane and application of photocatalytic reactor |
| CN104710279A (en) * | 2013-12-16 | 2015-06-17 | 裴振昭 | Method for preparing methanol through photocatalytic oxidation of methane |
| CN104324673A (en) * | 2014-10-20 | 2015-02-04 | 内蒙古师范大学 | Rotary drum type photo-catalytic reaction device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101940875B (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xia et al. | Enhanced performance and conversion pathway for catalytic ozonation of methyl mercaptan on single-atom Ag deposited three-dimensional ordered mesoporous MnO2 | |
| Shen et al. | Low-temperature combustion of toluene over Cu-doped SmMn2O5 mullite catalysts via creating highly active Cu2+–O–Mn4+ sites | |
| Huang et al. | Visible-Light-Driven photocatalytic oxidation of H2S by Boron-doped TiO2/LDH Heterojunction: Synthesis, performance, and reaction mechanism | |
| CN101940875B (en) | Method for decomposing high-concentration methane mixed gas by fast photocatalysis by using low pressure mercury lamp | |
| Jensen et al. | Flexible substrates as basis for photocatalytic reduction of carbon dioxide | |
| WO2011086402A1 (en) | Method for reduction of the co2 content of flue and atmospheric gases, and equipments for application of the method | |
| Chen et al. | Enhanced photocatalytic VOCs mineralization via special Ga-OH charge transfer channel in α-Ga2O3/MgAl-LDH heterojunction | |
| Divsalar et al. | Feasibility of siloxane removal from biogas using an ultraviolet photodecomposition technique | |
| Mohammadi et al. | Plasma-photocatalytic degradation of gaseous toluene using SrTiO3/rGO as an efficient heterojunction for by-products abatement and synergistic effects | |
| Liu et al. | Efficient degradation of H2S over transition metal modified TiO2 under VUV irradiation: performance and mechanism | |
| Cao et al. | Regulation of the reaction pathway to design the high sulfur/coke-tolerant Ce-based catalysts for decomposing sulfur-containing VOCs | |
| Liu et al. | Rational design via surface engineering on dual 2-dimensional ZnSe/g-C3N4 heterojunction for efficient sequestration of elemental mercury | |
| Lin et al. | Assessment of multiple environmental factors on the adsorptive and photocatalytic removal of gaseous formaldehyde by a nano-TiO2 colloid: Experimental and simulation studies | |
| CN103285799A (en) | Photocatalytic reactor for increasing photocatalytic degradation rate of methane and application of photocatalytic reactor | |
| Feng et al. | Enhanced photo-degradation of gaseous toluene over MnOx/TiO2/activated carbon under a novel microwave discharge electrodeless lamps system | |
| Zhang et al. | Balancing surface acidity, oxygen vacancies and Cu+ of CuOx/CeO2 catalysts by Nb doping for enhancing CO oxidation and moisture resistance and lowering byproducts in plasma catalysis | |
| Li et al. | Oxygen vacancies mediated flower-like BiOX microspheres for photocatalytic purification of methyl mercaptan odor: Significant distinction induced by halogen elements | |
| Liu et al. | Catalytic oxidation of formaldehyde over a Au@ Co 3 O 4 nanocomposite catalyst enhanced by visible light: moisture indispensability and reaction mechanism | |
| Chen et al. | Environment pollutants removal with non-thermal plasma technology | |
| Li et al. | Accelerating the low-temperature catalytic oxidation of acetone over Al-substituted Mn–Al oxides by rate-limiting step modulation | |
| Geng et al. | Advances and challenges of photocatalytic technology for air purification | |
| Luo et al. | Protonated NH2-MIL-125 via HCl vapor to introduce the moiety with charge and ample hydrogen as a novel bifunctional photocatalyst: Enhanced photocatalytic H2 production and NO purification | |
| Song et al. | Different degradation mechanisms of low-concentration ozone for MIL-100 (Fe) and MIL-100 (Mn) over wide humidity fluctuation | |
| CN101293632A (en) | Method for converting H2S into hydrogen gas with photocatalysis decomposition | |
| Wang et al. | Effective removal of hydrogen sulfide from landfill gases using a modified iron pentacarbonyl desulfurization agent and the desulfurization mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |