CN103599810A - Preparation and application of Sr<2+>-doped TiO2 composite hollow sphere photocatalyst - Google Patents
Preparation and application of Sr<2+>-doped TiO2 composite hollow sphere photocatalyst Download PDFInfo
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Abstract
The invention discloses a preparation method of a Sr<2+>-doped TiO2 composite hollow sphere photocatalyst, and belongs to the environmental protection field. The method comprises the following steps: adopting a template method-hydrolysis coating method to prepare a Sr<2+>-doped C/TiO2 core-shell particle, and calcining the particle at a certain temperature for a certain time to obtain the Sr<2+>-doped TiO2 composite hollow sphere photocatalyst. The Sr<2+>-doped TiO2 composite hollow sphere photocatalyst prepared in the invention can be used in the visible photocatalysis degradation of a cationic dye solution. The method has the advantages of pollution-free raw materials, simple technology, no emission of pollutants in the preparation process, short preparation period, less energy consumption and low cost, is a green synthesis technology, and can realize the large scale preparation. The doping of Sr<2+> improves the visible response of the photocatalyst, improves the lives of electrons and cavities, promotes the transmission of photoelectrons and substantially improves the visible photocatalytic activity of the catalyst.
Description
Technical field
The invention belongs to the preparation of nano composite material and the application of field of environment protection thereof, refer in particular to Sr
2+doped Ti O
2the preparation method of nano combined hollow ball photochemical catalyst.
background technology
Photocatalysis technology is a kind of efficient, clean, environmental friendliness, and harmless green environment purification techniques, all has wide application prospects in fields such as environmental protection, hygiene medical treatment, construction material, weaving, noble metal recovery and food fresh keepings.The semiconductor light-catalyst of broad research has CdS, SnO at present
2, TiO
2, ZnO, ZnS, PbS, MoO
3, SrTiO
3and V
2o
5deng, in these semiconductors, TiO
2a kind of metal oxide semiconductor of excellence, stable chemical nature, nontoxic, there is biocompatibility, thereby be widely used and demonstrated tempting prospect in various fields such as catalysis, electronics, environment, medical treatment.Particularly from 1972, find that water is at TiO
2on electrode, can photicly decompose, between 1976-1977, find that Polychlorinated biphenyls and cyanide can be at TiO
2since upper photocatalytic degradation, with TiO
2semi-conducting material is photochemical catalyst, and the scientific research that the clean energy resource of take preparation and environmental pollution improvement are target has attracted chemistry, environment and energy field scientific worker's height interest.Yet, TiO
2there is the wide and low defect of photo-quantum efficiency of band gap in photochemical catalyst, can only be confined under ultraviolet light conditions, have good photocatalytic activity; In addition, nano-TiO
2also there is the problem that is difficult to recycling in granular materials.
In recent years, researcher has used various methods to improve the utilization rate of titanium dioxide to natural daylight, as dye sensitization, pattern design, doped metallic elements (as V, Fe and Cr) or nonmetalloid (as N, C and S).In these methods, metal ion mixing is one of effective ways that improve optically catalytic TiO 2 activity.At present, the element major part of doping all concentrates on transition metal and thulium, and the doping of alkali earth metal seldom.The present invention proposes a kind of Sr of preparation
2+doped Ti O
2the method of hollow ball composite catalyst, and with it, dye of positive ion is carried out to Visible Light Induced Photocatalytic research.On the one hand, use Sr
2+ion pair TiO
2carry out doping vario-property, change TiO
2level structure, widen the spectral response range of photochemical catalyst, improve the utilization rate to solar energy; On the other hand, make full use of TiO
2hollow ball specific surface is large, and high index of refraction, good advantages such as surface chemical property improve the activity of photochemical catalyst greatly.Relevant TiO
2hollow ball for photocatalysis research have been reported Wu Liangzhuan, only gold virtue. water one-step synthesis anatase titanium dioxide hollow ball. Acta PhySico-Chimica Sinica .2007,23 (8): 1173-1177 ］, reported in literature Sr doped Ti O
2the system of nano particle is also applied to photocatalytic degradation research [Yan Shaofeng; Sr dopen Nano TiO
2the technique of photocatalysis performance
.liaoning Project Technology University's journal (natural science edition), 2011,02:117 – 119], yet for Sr
2+doped Ti O
2the preparation of hollow ball is also carried out visible light photocatalytic degradation with it to the dye of positive ion, there is no reported in literature both at home and abroad.
summary of the invention
In order to improve photochemical catalyst to visible light-responded ability and recyclability.Object of the present invention provides a kind of New type of S r
2+doped Ti O
2the preparation method of composite hollow ball photocatalyst, the method adopts the coated legal system of template-hydrolysis for Sr
2+carbon/titanium dioxide core shell particles of doping, and calcine after certain hour under uniform temperature, Sr obtained
2+the TiO of doping
2nano combined hollow ball photochemical catalyst.Sr prepared by the present invention
2+doped Ti O
2composite hollow ball photocatalyst can be applicable to catalytic degradation dye of positive ion solution under visible ray.Specifically comprise the following steps:
(1) measure respectively absolute ethyl alcohol and the distilled water of certain volume, join with in the there-necked flask stirring; The strontium nitrate that adds subsequently certain mass, stirring and dissolving, then continues to add the nano carbon microsphere of certain mass, and ultrasonic dispersion is until mix.Wherein the volume ratio of absolute ethyl alcohol and distilled water is (50-100): (0.3-12), strontium nitrate is (3.004*10 with the ratio of distilled water
-5-6.307*10
-1): (0.3-12) g/mL, nano carbon microsphere and strontium nitrate mass ratio are (0.06-2.7): (3.004*10
-5-6.307*10
-1), carbon bulb diameter scope is at 100-250nm.
(2) in dry constant pressure funnel, add certain volume absolute ethyl alcohol, in the Sr/Ti mole of ratio that is 0.1 ~ 5/100, the tetrabutyl titanate that measures certain volume adds wherein, be mixed with the ethanolic solution of tetrabutyl titanate, wherein ethanol is 8.571-100:1 with the ratio of the volume of tetrabutyl titanate; The tetrabutyl titanate ethanolic solution of above-mentioned preparation is slowly joined in the mixed liquor of carbon ball and strontium nitrate under the condition stirring, continue to stir after 5-60min, add hot reflux 3-12h at 60-100 ℃.
(3), after refluxing, continue to stir 30min-2h, centrifugation, washing, dries and obtains Sr
2+carbon/titanium dioxide core shell particles of doping; To make Sr
2+carbon/titanium dioxide core shell particles of doping is 350-550 ℃ of burning 1-6h in muffle furnace, makes Sr
2+the TiO of doping
2hollow ball photochemical catalyst, wherein Sr/Ti mol ratio is 0.1 ~ 5/100.
the Sr that the present invention makes
2+
doped Ti O
2
hollow ball composite photo-catalyst and the technique effect that the catalytic degradation dye of positive ion brings under visible ray thereof are:
(1) utilize strontium source ,Tai source and carbon ball cheaply to prepare Sr
2+doped Ti O
2composite hollow ball, it is raw materials used all pollution-free, and the technique of method is simple, non-pollutant discharge in preparation process, manufacturing cycle is short, less energy consumption, cost is low, belongs to green synthesis techniques, and can realize scale preparation.
(2) Sr
2+doped Ti O
2composite hollow ball is the photochemical catalyst of function admirable.Use Sr
2+after adulterating, improve the visible light-responded of photochemical catalyst, meanwhile, strontium doping can cause TiO
2lattice distortion, causes it to produce lattice defect, improves the life-span in electronics and hole, has promoted photoelectronic transmission, has greatly improved the visible light catalysis activity of catalyst.
innovation of the present invention is:
(1) proposed a kind ofly with He Tai source, cheap strontium source, to prepare Sr
2+doped Ti O
2the new method of composite hollow ball photocatalyst.
(2) propose Sr
2+be doped to TiO
2in hollow ball, not only utilized TiO
2hollow ball specific area is large, and Sr
2+doping causes TiO
2lattice distortion, makes TiO
2absorption spectrum generation red shift, the separative efficiency of raising light induced electron, has increased the utilization rate of catalyst to visible ray, effectively reduces the degraded cost of organic pollutant, promotes the degradation rate of dyestuff.
Accompanying drawing explanation
Fig. 1: make Sr by example 1
2+ion doping TiO
2the EDS figure of composite hollow ball photocatalyst;
Fig. 2: the Sr making by example 3, example 5 and example 7
2+ion doping TiO
2the solid ultraviolet-visible light spectrogram of composite hollow ball photocatalyst;
Fig. 3: make Sr by example 5
2+ion doping TiO
2the SEM figure of composite hollow ball photocatalyst;
Fig. 4: make Sr by example 9
2+ion doping TiO
2the TEM figure of compound bulbus cordis photochemical catalyst.
the specific embodiment
below in conjunction with accompanying drawing, optimal way of the present invention is further described
In DW-03 type photochemical reaction instrument (purchased from Educational Instrument Factory of Yangzhou University), carry out, take xenon lamp as simulation light source of solar energy, with optical filter, filter ultraviolet light, evaluate under solar visible light the Sr that the present invention makes
2+doped Ti O
2the degradation efficiency of composite hollow ball photocatalyst to the dye of positive ion.Concrete step is: the certain density dye of positive ion solution of 100mL is joined in reactor and measures its initial value, then add a certain amount of composite photo-catalyst, magnetic agitation is also opened aerator and passed into air and keep catalyst in suspended state.Illumination 1h samples, and after centrifugation, supernatant is measured to the absorbance of solution in the maximum absorption wave strong point of dyestuff with ultraviolet-visible spectrophotometer.According to the absorbance before and after illumination, calculate the percent of decolourization D:D=(A of dye of positive ion solution
0– A
t)/A
0* 100%, A in formula
0the absorbance of sample while just having started for illumination, A
tabsorbance for the sample of illumination certain hour.The effect of photocatalytic degradation characterizes by the size of the percent of decolourization of dye of positive ion solution.
example 1:
1) in the there-necked flask with stirring, first add the distilled water of 50mL absolute ethyl alcohol and 0.3mL, then add 3.004*10
-5g strontium nitrate, after stirring and dissolving, continues to add 0.06g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 50mL, measure 0.5mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir after 5min, 80 ℃ add hot reflux 6h.After backflow, continue to stir 30min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is calcined to 2h in 500 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 0.1/100.
The specific area of sample is 225.27m
2/ g,, visible ray, according to 1h, reaches 65.79% to cationic blue dyestuff photocatalytic degradation efficiency.
The EDS figure that accompanying drawing of the present invention 1 is the sample that makes by example 1.As we know from the figure, occurred the power spectrum peak of Sr, Ti, O and Pt element in figure, Pt element is due to due to the spray of sample when sample preparation platinum.Ti and O come from TiO
2, Sr derives from strontium nitrate.Thereby can by Ti, Sr and O element, be formed by judgement sample, Sr is described
2+successfully be incorporated into TiO
2in hollow ball.
example 2:
1) in the there-necked flask with stirring, first add the distilled water of 60mL absolute ethyl alcohol and 1mL, then add 1.802*10
-3g strontium nitrate, after stirring and dissolving, continues to add 0.6g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 70mL, measure 1.5mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir after 15min, 70 ℃ add hot reflux 8h.After backflow, continue to stir 60min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is calcined to 6h in 400 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 0.2/100.
The specific area of sample is 235.12m
2/ g,, visible ray, according to 1h, reaches 82.68% to cationic blue dyestuff photocatalytic degradation efficiency.
example 3:
1) in the there-necked flask with stirring, first add the distilled water of 60mL absolute ethyl alcohol and 1.5mL, then add 9.010*10
-3g strontium nitrate, after stirring and dissolving, continues to add 0.9g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 80mL, measure 3mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir after 20min, 90 ℃ add hot reflux 5h.After backflow, continue to stir 60min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 1h in 550 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 0.5/100.
In accompanying drawing 2 of the present invention, curve 3 is the solid ultraviolet-visible light spectrogram that example 3 makes sample, and as can be known from Figure, composite photo-catalyst optical absorption edge generation red shift, has moved to visible region, illustrates that this sample has higher response to visible ray.
The specific area of sample is 245.29m
2/ g,, visible ray, according to 1h, reaches 89.34% to cationic golden yellow dyestuff degradation efficiency.
example 4:
1) in the there-necked flask with stirring, first add the distilled water of 60mL absolute ethyl alcohol and 2mL, then add 2.027*10
-2g strontium nitrate, after stirring and dissolving, continues to add 0.9g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 90mL, measure 4.5mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 30min, 60 ℃ add hot reflux 12h.After backflow, continue to stir 60min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 3h in 500 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 0.75/100.
The specific area of sample is 228.56m
2/ g,, visible ray, according to 1h, reaches 82.34% to cationic golden yellow dyestuff degradation efficiency.
example 5
1) in the there-necked flask with stirring, first add the distilled water of 60mL absolute ethyl alcohol and 3mL, then add 3.604*10
-2g strontium nitrate, after stirring and dissolving, continues to add 1.2g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 100mL, measure 6mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 60min, 80 ℃ add hot reflux 10h.After backflow, continue to stir 90min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 4h in 450 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 1/100.
The specific area of sample is 258.79m
2/ g,, visible ray, according to 1h, reaches 94.57% to cationic blue dyestuff degradation efficiency.
In accompanying drawing 2 of the present invention, curve 5 is the solid ultraviolet-visible light spectrogram that example 5 makes sample, and as can be known from Figure, obvious red shift occurs composite photo-catalyst optical absorption edge, has moved to visible region, illustrates that this sample has higher response to visible ray.
The SEM figure that accompanying drawing of the present invention 3 is the composite photo-catalyst that makes by example 5, as we know from the figure, sample is ball shape structure, and the diameter of ball is between 100-300nm, and the surface of ball is very coarse, the absorption property of interpret sample to dyestuff.The ball breaking in figure is known, and the nanosphere making is hollow-core construction.
example 6
1) in the there-necked flask with stirring, first add the distilled water of 90mL absolute ethyl alcohol and 4.5mL, then add 6.758*10
-2g strontium nitrate, after stirring and dissolving, continues to add 1.5g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 110mL, measure 9mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 30min, 90 ℃ add hot reflux 8h.After backflow, continue to stir 2h, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 6h in 350 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 1.25/100.
The specific area of sample is 212.54m
2/ g,, visible ray illumination 1h, to cationic red X-FRL degradation efficiency 86.52%.
example 7
1) in the there-necked flask with stirring, first add the distilled water of 90mL absolute ethyl alcohol and 6mL, then add 5.407*10
-2g strontium nitrate, after stirring and dissolving, continues to add 1.8g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 100mL, measure 6mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 15min, 90 ℃ add hot reflux 6h.After backflow, continue to stir 2h, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 3h in 400 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 1.5/100.
The specific area of sample is 208.32m
2/ g,, visible ray is according to 1h, to cationic red X-FRL degradation efficiency 72.68%.
In accompanying drawing 2 of the present invention, curve 7 is the solid ultraviolet-visible light spectrogram that example 7 makes sample, and as can be known from Figure, red shift also occurs composite photo-catalyst optical absorption edge, has moved to visible region, illustrates that this sample has higher response to visible ray.
example 8
1) in the there-necked flask with stirring, first add the distilled water of 90mL absolute ethyl alcohol and 7.5mL, then add 1.802*10
-1g strontium nitrate, after stirring and dissolving, continues to add 2.1g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 130mL, measure 15mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 30min, 90 ℃ add hot reflux 5h.After backflow, continue to stir 60min, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 4h in 450 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 2/100.
The specific area of sample is 216.32m
2/ g,, visible ray is according to 1h, to cationic flavine dyestuff degradation efficiency 90.54%.
example 9
1) in the there-necked flask with stirring, first add the distilled water of 100mL absolute ethyl alcohol and 9mL, then add 3.244*10
-1g strontium nitrate, after stirring and dissolving, continues to add 2.4g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 150mL, measure 18mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 0.5h, 100 ℃ add hot reflux 3h.After backflow, continue to stir 1.5h, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 2h in 500 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 3/100.
The specific area of sample is 230.32m
2/ g,, visible ray is according to 1h, to cationic flavine dyestuff degradation efficiency 86.32%.
The TEM figure that accompanying drawing of the present invention 4 is the composite photo-catalyst that makes by example 9, as we know from the figure, sample is ball shape structure, the depth contrast of the centerand edge color of ball, known sample is hollow-core construction, the average wall thickness of sample is about 30nm.
example 10
1) in the there-necked flask with stirring, first add the distilled water of 100mL absolute ethyl alcohol and 12mL, then add 6.307*10
-1g strontium nitrate, after stirring and dissolving, continues to add 2.7g nano carbon microsphere, and carbon bulb diameter scope is at 100 ~ 250nm, and ultrasonic dispersion is until mix.
2) in dry constant pressure funnel, add the absolute ethyl alcohol of 180mL, measure 21mL tetrabutyl titanate and add wherein, be mixed with the ethanolic solution of tetrabutyl titanate.Under the condition stirring, slowly add in there-necked flask subsequently, continue to stir 0.5h, 80 ℃ add hot reflux 8h.After backflow, continue to stir 1h, centrifugation, washing, dries and obtains Sr
2+doping carbon/titanium dioxide core shell particles.The particle of oven dry is forged to 2h in 550 ℃ of muffle furnaces, make Sr
2+doped Ti O
2composite hollow ball photocatalyst, wherein Sr/Ti mol ratio is 5/100.
The specific area of sample is 187.36m
2/ g, visible ray illumination 1h, to cationic golden yellow dyestuff degradation efficiency 56.36%.
Claims (3)
1.Sr
2+doped Ti O
2the preparation method of composite hollow sphere catalyst, is characterized in that carrying out according to following step:
(1) measure respectively absolute ethyl alcohol and the distilled water of certain volume, join with in the there-necked flask stirring; The strontium nitrate that adds subsequently certain mass, stirring and dissolving, then continues to add the nano carbon microsphere of certain mass, and ultrasonic dispersion is until mix;
(2) in dry constant pressure funnel, add certain volume absolute ethyl alcohol, in the Sr/Ti mole of ratio that is 0.1 ~ 5/100, the tetrabutyl titanate that measures certain volume adds wherein, be mixed with the ethanolic solution of tetrabutyl titanate, wherein ethanol is (8.571-100) with the ratio of the volume of tetrabutyl titanate: 1; The tetrabutyl titanate ethanolic solution of above-mentioned preparation is slowly joined in the mixed liquor of carbon ball and strontium nitrate under the condition stirring, continue to stir after 5-60min, add hot reflux 3-12h at 60-100 ℃;
(3), after refluxing, continue to stir 30min-2h, centrifugation, washing, dries and obtains Sr
2+carbon/titanium dioxide core shell particles of doping; To make Sr
2+carbon/titanium dioxide core shell particles of doping is 350-550 ℃ of burning 1-6h in muffle furnace, makes Sr
2+the TiO of doping
2hollow ball photochemical catalyst, wherein Sr/Ti mol ratio is 0.1 ~ 5/100.
2. Sr according to claim 1
2+doped Ti O
2the preparation method of composite hollow sphere catalyst, is characterized in that in step (1) wherein, absolute ethyl alcohol is (50-100) with the volume ratio of distilled water: (0.3-12), strontium nitrate is (3.004*10 with the ratio of distilled water
-5-6.307*10
-1): (0.3-12) g/mL, nano carbon microsphere and strontium nitrate mass ratio are (0.06-2.7): (3.004*10
-5-6.307*10
-1), carbon bulb diameter scope is at 100-250nm.
3. the Sr described in claim 1
2+doped Ti O
2the application of composite hollow sphere catalyst, is characterized in that it is applied to solar visible light catalytic degradation dye of positive ion solution.
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| CN104190397A (en) * | 2014-07-21 | 2014-12-10 | 浙江大学 | High specific surface area metal doped oxide hollow nanosphere and preparation method thereof |
| CN104707641A (en) * | 2015-02-15 | 2015-06-17 | 山东师范大学 | Metal-nitrogen co-doped titanium dioxide hollow sphere catalyst and preparation method thereof |
| CN105233821A (en) * | 2015-10-19 | 2016-01-13 | 河海大学 | Strontium-doped and silver-doped nanometer titanium dioxide visible light catalyst |
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| CN107442096A (en) * | 2017-07-26 | 2017-12-08 | 齐齐哈尔大学 | Gully shape strontium doping TiO2‑ZrO2The synthetic method of photochemical catalyst |
| CN107999129A (en) * | 2018-01-24 | 2018-05-08 | 常州市新鸿医药化工技术有限公司 | A kind of modified SrTiO3Photochemical catalyst and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188711A1 (en) * | 2000-09-15 | 2002-03-20 | The Hydrogen Solar Production Company Limited | Photocatalyst for use in the production of hydrogen from water or aqueous solutions of organic compounds |
| US20050118078A1 (en) * | 2003-05-29 | 2005-06-02 | Dobbs Gregory M. | Gas phase contaminant removal with low pressure drop |
| CN101890350A (en) * | 2010-07-21 | 2010-11-24 | 江苏大学 | Method for preparing Fe3+doped TiO2 hollow sphere catalyst and application thereof |
| CN101905153A (en) * | 2010-07-21 | 2010-12-08 | 江苏大学 | Preparation method and application of ZnO-doped TiO2 composite hollow sphere |
-
2013
- 2013-10-28 CN CN201310515963.0A patent/CN103599810B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188711A1 (en) * | 2000-09-15 | 2002-03-20 | The Hydrogen Solar Production Company Limited | Photocatalyst for use in the production of hydrogen from water or aqueous solutions of organic compounds |
| US20050118078A1 (en) * | 2003-05-29 | 2005-06-02 | Dobbs Gregory M. | Gas phase contaminant removal with low pressure drop |
| CN101890350A (en) * | 2010-07-21 | 2010-11-24 | 江苏大学 | Method for preparing Fe3+doped TiO2 hollow sphere catalyst and application thereof |
| CN101905153A (en) * | 2010-07-21 | 2010-12-08 | 江苏大学 | Preparation method and application of ZnO-doped TiO2 composite hollow sphere |
Non-Patent Citations (3)
| Title |
|---|
| 匡继董等: "水热沉淀法制备掺铁二氧化钛中空球及其光催化性能", 《催化学报》, vol. 31, no. 11, 31 December 2010 (2010-12-31), pages 1399 - 1404 * |
| 闫绍峰: "Sr掺杂纳米TiO2光催化性能的工艺", 《辽宁工程技术大学学报（自然科学版）》, vol. 30, no. 1, 28 February 2011 (2011-02-28), pages 117 - 119 * |
| 马黎等: "分解微纳结构TiO2空心球的制备及其在DSSC中的应用", 《中国科学：化学》, vol. 42, no. 7, 2 July 2012 (2012-07-02), pages 1022 - 1028 * |
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