CN102000566A - Method for preparing photoactivated silver/titanium dioxide complex - Google Patents
Method for preparing photoactivated silver/titanium dioxide complex Download PDFInfo
- Publication number
- CN102000566A CN102000566A CN2010105149103A CN201010514910A CN102000566A CN 102000566 A CN102000566 A CN 102000566A CN 2010105149103 A CN2010105149103 A CN 2010105149103A CN 201010514910 A CN201010514910 A CN 201010514910A CN 102000566 A CN102000566 A CN 102000566A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- silver
- dioxide compound
- photoactivated
- dioxide complex
- 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.)
- Pending
Links
Abstract
The invention discloses a method for preparing a photoactivated silver/titanium dioxide complex, which sequentially comprises the following steps of: 1, washing and chopping fresh green leaves, sufficiently mixing the chopped leaves and acetone in a mass ratio of 1:2-50, adding solid particles, grinding at normal temperature for 5 to 60 minutes and filtering to obtain chlorophyll extract; 2, adding a silver/titanium dioxide complex into the chlorophyll extract in a mass ratio of the silver/titanium dioxide complex to the leaves of 1:0.1-50 and then soaking at room temperature for 0.1 to 24 hours; and 3, drying suspension which is obtained after the silver/titanium dioxide complex is soaked in the chlorophyll extract at normal temperature and the vacuum degree of 20 to 267Pa for 6 to 72 hours to obtain the photoactivated silver/titanium dioxide complex. The method for preparing the photoactivated silver/titanium dioxide complex overcomes the defects that: the preparation process is complicated, the cost is relatively high, large-scale industrial production is difficult to realize, and the like of the conventional photoactivated material.
Description
(1) technical field:
The present invention relates to a kind of preparation method of photoactivate inorganic composite, mainly relate to a kind of preparation method of photoactivate silver/titanium dioxide compound.
(2) background technology:
In recent years, people are the performance of improving semi-conducting materials such as titanium dioxide, enlarge its photoresponse scope and improve photocatalysis usefulness, and many researchers adopt means such as doping, compound, photoactivate to carry out the research work of titanium dioxide compound both at home and abroad.Reported that people such as Liu Lifen add P-25 type titanium dioxide 0.1 molar concentration liquor argenti nitratis ophthalmicus of stoichiometry volume according to the doping of synthetic sample silver under 300 ℃ temperature for 211 pages to 217 pages of " Chinese Journal of Inorganic Chemistry " second phase in 2008, through ultrasonic dispersion, add sodium borohydride, can prepare silver/titanium dioxide compound.Chinese patent ZL200910185186.1 " a kind of preparation method of silver/titanium dioxide compound " also discloses people such as Xu Zhibing and has adopted Nano Silver and the tetrabutyl titanate method of silver/titanium dioxide compound that has been feedstock production.
Adopting dye sensitization photocatalyst also is one of research hot subject of people.Photosensitizer can be attached to the semiconductor surfaces such as titanium dioxide of high-ratio surface through chemisorbed or physical absorption.Semiconductor also transmits as the notes people that the length of electronics is accepted the photosensitizer excitation electron apart from transmission system, thereby the electron capture agent finally realizes the separation of electron hole at the semiconductor surface trapped electrons.Photosensitizer commonly used comprises inorganic dyestuff, organic dyestuff and high polymer etc.429 pages to 433 pages of " Catalysis Communications " 2007 the 8th phases have been reported conjugated polymer [PFT, Poly (fluorene-co-thiophene)] the sensitization nano-TiO that people such as Song adopt monomer fluorenes and thiophene and are polymerized
2, studies show that the sensitization nano-TiO
2The Pyrogentisinic Acid has photocatalysis performance preferably under visible light.But there are problems such as sensitizer price height, sensitization cost height in this method.
(3) summary of the invention:
The object of the present invention is to provide the preparation method that a kind of cost is low, simple to operate, be fit to the photoactivate silver/titanium dioxide compound of suitability for industrialized production.
For achieving the above object, the preparation method of a kind of photoactivate silver/titanium dioxide compound of the present invention, its steps in sequence is:
One, gets fresh green leaf, clean, remove middle arteries and veins, fast chopping, with it with acetone by mass ratio be: 1: 2-50 fully mixes, and adds solid particle again, and leaf with the mass of solid particles ratio is: 1: 0.1-10, ground at normal temperatures 5-60 minute, and filtered then, get the chlorophyll extract;
Wherein: solid particle is one or both in quartz sand, the calcium carbonate;
Two, in the chlorophyll extract by silver/titanium dioxide compound and leaf mass ratio be: 1: 0.1-50 adds silver/titanium dioxide compound, soaks 0.1-24 hour under the room temperature then;
Three, the suspension after above-mentioned silver/titanium dioxide compound is soaked in the chlorophyll extract at normal temperatures, under the 20-267Pa vacuum dry 6-72 hour, obtain photoactivated silver/titanium dioxide compound.
Owing to taked technique scheme, the present invention relates to the preparation method of described a kind of photoactivate silver/titanium dioxide compound by silver/titanium dioxide compound and chlorophyll extract is abundant, evenly mixing, has prepared the photoactivate silver/titanium dioxide compound after the drying.Overcome problems such as existing photosensitive materials preparation cost height, catalytic performance be undesirable, be expected to be widely used in fields such as chemistry, biology and materials.Can be used for aspects such as sterilization, antifouling, deodorizing, the various organic pollutions of degraded as the photoactivate silver/titanium dioxide compound as a kind of photochemical catalyst; Compare as photochemical catalyst with titania powder and silver/titanium dioxide compound, this kind photoactivate silver/titanium dioxide compound photocatalytic activity obviously improves.
(4) specific embodiment:
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment one
Get fresh greenery 10g, clean, remove middle arteries and veins, mortar is put in chopping fast; Add 0.5g quartz sand and 0.5g calcium carbonate and 25mL acetone in the mortar, ground at normal temperatures 50 minutes, filter behind the one-tenth pasty state, filtrate is the chlorophyll extract.Silver/titanium dioxide compound 0.2g is fully mixed with the chlorophyll extract, soaked 1 hour under the room temperature.Above-mentioned silver/titanium dioxide compound is soaked suspension 100Pa vacuum drying at normal temperatures 50 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment two
Get fresh greenery 5g, clean, remove middle arteries and veins, mortar is put in chopping fast; Add 1g quartz sand and 1g calcium carbonate and 20mL acetone in the mortar, ground at normal temperatures 5 minutes, filter behind the one-tenth pasty state, filtrate is the chlorophyll extract.Silver/titanium dioxide compound 0.1g is fully mixed with the chlorophyll extract, soaked 5 hours under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 200Pa vacuum dry 40 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment three
Get fresh greenery 1g, clean, remove middle arteries and veins, mortar is put in chopping fast; Add 5g quartz sand and 5g calcium carbonate and 50mL acetone in the mortar, ground at normal temperatures 20 minutes, filter behind the one-tenth pasty state, filtrate is the chlorophyll extract.Silver/titanium dioxide compound 10g is fully mixed with the chlorophyll extract, soaked 24 hours under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 200Pa vacuum dry 60 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment four
Get fresh greenery 15g, clean, remove middle arteries and veins, mortar is put in chopping fast; Add 1.5g quartz sand and 1.5g calcium carbonate and 45mL acetone in the mortar and ground at normal temperatures 50 minutes, filter behind the one-tenth pasty state, filtrate is the chlorophyll extract.Silver/titanium dioxide compound 1g is fully mixed with the chlorophyll extract, soaked 6 minutes under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 50Pa vacuum dry 68 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment five
Get fresh greenery 3g, clean, remove middle arteries and veins, mortar is put in chopping fast; Adding 1g calcium carbonate and 30mL acetone ground 60 minutes at normal temperatures in the mortar, filtered behind the one-tenth pasty state, and filtrate is the chlorophyll extract.Silver/titanium dioxide compound 0.5g is fully mixed with the chlorophyll extract, soaked 6 hours under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 200Pa vacuum dry 40 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment six
Get fresh greenery 3g, clean, remove middle arteries and veins, mortar is put in chopping fast; Adding 1g quartz sand and 40mL acetone ground 60 minutes at normal temperatures in the mortar, filtered behind the one-tenth pasty state, and filtrate is the chlorophyll extract.Silver/titanium dioxide compound 1g is fully mixed with the chlorophyll extract, soaked 6 hours under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 200Pa vacuum dry 50 hours, obtain photoactivated silver/titanium dioxide compound.
Embodiment seven
Get fresh greenery 5g, clean, remove middle arteries and veins, mortar is put in chopping fast; Add 0.5g quartz sand and 0.5g calcium carbonate and 50mL acetone in the mortar and ground at normal temperatures 30 minutes, filter behind the one-tenth pasty state, filtrate is the chlorophyll extract.Silver/titanium dioxide compound 1g is fully mixed with the chlorophyll extract, soaked 24 hours under the room temperature.Above-mentioned silver/titanium dioxide compound was soaked under the suspension normal temperature, under the 20Pa vacuum dry 72 hours, obtain photoactivated silver/titanium dioxide compound.
Claims (1)
1. the preparation method of a photoactivate silver/titanium dioxide compound, its steps in sequence is:
One, gets fresh green leaf, clean, remove middle arteries and veins, fast chopping, with it with acetone by mass ratio be: 1: 2-50 fully mixes, and adds solid particle again, and leaf with the mass of solid particles ratio is: 1: 0.1-10, ground at normal temperatures 5-60 minute, and filtered then, get the chlorophyll extract;
Wherein: solid particle is one or both in quartz sand, the calcium carbonate;
Two, in the chlorophyll extract by silver/titanium dioxide compound and leaf mass ratio be: 1: 0.1-50 adds silver/titanium dioxide compound, soaks 0.1-24 hour under the room temperature then;
Three, the suspension after above-mentioned silver/titanium dioxide compound is soaked in the chlorophyll extract at normal temperatures, under the 20-267Pa vacuum dry 6-72 hour, obtain photoactivated silver/titanium dioxide compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105149103A CN102000566A (en) | 2010-10-15 | 2010-10-15 | Method for preparing photoactivated silver/titanium dioxide complex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105149103A CN102000566A (en) | 2010-10-15 | 2010-10-15 | Method for preparing photoactivated silver/titanium dioxide complex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102000566A true CN102000566A (en) | 2011-04-06 |
Family
ID=43808420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105149103A Pending CN102000566A (en) | 2010-10-15 | 2010-10-15 | Method for preparing photoactivated silver/titanium dioxide complex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102000566A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086502A (en) * | 2015-09-08 | 2015-11-25 | 湖州宏鑫绸厂 | Novel nanometer titania/chlorophyll derivative dye and preparation method thereof |
| CN107349942A (en) * | 2017-07-26 | 2017-11-17 | 深圳市威勒科技股份有限公司 | A kind of fluorine tungsten codope photocatalyst and preparation method thereof |
| CN107570140A (en) * | 2017-07-31 | 2018-01-12 | 华南理工大学 | A kind of photosensitizer WO3/TiO2Catalytic membrane and preparation method thereof |
| CN109126892A (en) * | 2018-09-10 | 2019-01-04 | 湖南科技大学 | A kind of preparation method of Organic-inorganic composite photocatalysis membrana |
| CN111250172A (en) * | 2020-03-31 | 2020-06-09 | 山东大学 | Photosensitive organic catalyst and preparation method and application thereof |
| CN112588325A (en) * | 2020-10-23 | 2021-04-02 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695800A (en) * | 2005-03-15 | 2005-11-16 | 浙江大学 | Method for preparing load type photocatalyst of titania modified by Argentine |
| US20080146441A1 (en) * | 2006-12-13 | 2008-06-19 | Ihor Mykhaylovych Kobasa | Highly photosensitive titanium dioxide and process for forming the same |
| CN101773820A (en) * | 2009-12-30 | 2010-07-14 | 长沙学院 | Method for preparing visible light active photocatalyst through dye sensitization |
-
2010
- 2010-10-15 CN CN2010105149103A patent/CN102000566A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695800A (en) * | 2005-03-15 | 2005-11-16 | 浙江大学 | Method for preparing load type photocatalyst of titania modified by Argentine |
| US20080146441A1 (en) * | 2006-12-13 | 2008-06-19 | Ihor Mykhaylovych Kobasa | Highly photosensitive titanium dioxide and process for forming the same |
| CN101773820A (en) * | 2009-12-30 | 2010-07-14 | 长沙学院 | Method for preparing visible light active photocatalyst through dye sensitization |
Non-Patent Citations (2)
| Title |
|---|
| 《Powder Technology》 20090405 Chuen-Shii Chou et al. Preparation of TiO2/Nano-metal composite particles and their applications in dye-sensitized solar cells 第2.2节 1 第194卷, * |
| 《陕西师范大学学报(自然科学版)》 20020930 王振领等 TiO2膜的光敏化及其灭菌活性研究 第1.3节 1 第30卷, 第3期 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086502A (en) * | 2015-09-08 | 2015-11-25 | 湖州宏鑫绸厂 | Novel nanometer titania/chlorophyll derivative dye and preparation method thereof |
| CN107349942A (en) * | 2017-07-26 | 2017-11-17 | 深圳市威勒科技股份有限公司 | A kind of fluorine tungsten codope photocatalyst and preparation method thereof |
| CN107570140A (en) * | 2017-07-31 | 2018-01-12 | 华南理工大学 | A kind of photosensitizer WO3/TiO2Catalytic membrane and preparation method thereof |
| CN107570140B (en) * | 2017-07-31 | 2020-06-19 | 华南理工大学 | Photosensitization WO3/TiO2Catalytic membrane and method for producing the same |
| CN109126892A (en) * | 2018-09-10 | 2019-01-04 | 湖南科技大学 | A kind of preparation method of Organic-inorganic composite photocatalysis membrana |
| CN111250172A (en) * | 2020-03-31 | 2020-06-09 | 山东大学 | Photosensitive organic catalyst and preparation method and application thereof |
| CN112588325A (en) * | 2020-10-23 | 2021-04-02 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
| CN112588325B (en) * | 2020-10-23 | 2021-11-26 | 华南农业大学 | Titanium dioxide-chlorophyll compound and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102000566A (en) | Method for preparing photoactivated silver/titanium dioxide complex | |
| Shi et al. | Stable, metal-free, visible-light-driven photocatalyst for efficient removal of pollutants: Mechanism of action | |
| CN102350334B (en) | Graphene/mesoporous titanium dioxide visible light catalyst and preparation method | |
| Xu et al. | Electrospun nanofibers of Bi-doped TiO2 with high photocatalytic activity under visible light irradiation | |
| CN103240130B (en) | TiO2 / MIL-101 composite catalyst for photocatalytic water splitting and preparation method and applications thereof | |
| Du et al. | Fluorine doped TiO2/mesocellular foams with an efficient photocatalytic activity | |
| CN108273564B (en) | Composite visible light photocatalyst Ag2CO3/TiO2/UiO-66-(COOH)2Preparation method and application thereof | |
| CN101411995B (en) | Method for preparing AgBr/PANI/TiO2 nano composite material with visible light catalytic activity | |
| CN106517341B (en) | A kind of method and its application for preparing manganese dioxide nano catalyst | |
| CN103316686A (en) | Visible-light-responded photocatalyst SrCu2V2O8 and preparation method thereof | |
| CN109126714B (en) | TiO 22/SiO2-banana peel biochar composite adsorption material and preparation method thereof | |
| CN103801283B (en) | A kind of lanthanum and the preparation method of gadolinium codope titanium dioxide mesoporous microsphere | |
| CN101559368A (en) | Visible light active boron-nickel co-doped titanium dioxide solid solution catalyst and preparation method thereof | |
| CN110240723A (en) | Ultraviolet high shielding fiber element film of one kind and the preparation method and application thereof | |
| CN102295524B (en) | Method for preparing cyclohexanol and cyclohexanone by selective oxidation of cyclohexane | |
| CN105536765B (en) | A kind of shell base boron-doped titanium dioxide composite photo-catalyst and preparation method thereof | |
| CN101244381B (en) | Process for producing TiO2-Al2O3composite nano-powder body material | |
| CN102211019B (en) | Visible light-responsive composite oxide photochemical catalyst Ba1-xSrxLi2Ti6O14 and preparation method thereof | |
| CN102240542B (en) | Visible-light-responsive composite oxide photochemical catalyst Li2SrNb(2-x)TaxO7 and preparation method thereof | |
| CN111569944A (en) | Manganese ion doped metal organic framework material and preparation method thereof | |
| Zhang et al. | Enhanced photocatalytic reduction of CO2 into CH4 over N, Eu co-doped TiO2: Insight into the synergistic effect of N and Eu | |
| CN101947459B (en) | Visible light active boron nitrogen codope titanium dioxide hollow sphere catalyst and preparation method thereof | |
| Meng et al. | Competitive coordination strategy for preparing TiO2/C nanocomposite with adsorption-photocatalytic synergistic effect | |
| CN110201718A (en) | A kind of preparation and application of red phosphorus/ferrous metals organic framework composite material | |
| Li et al. | Insights into the in-built Tb4+/Tb3+ redox centers for boosted hydroxyl radical yield and superior separation of charge carriers by investigating Tb2O3/g-C3N4 composite photocatalysts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110406 |