CN107335442A - Composite photocatalyst material and its preparation method and application is changed on a kind of Er ions yttrium aluminate/concave convex rod - Google Patents

Composite photocatalyst material and its preparation method and application is changed on a kind of Er ions yttrium aluminate/concave convex rod Download PDF

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CN107335442A
CN107335442A CN201710484851.1A CN201710484851A CN107335442A CN 107335442 A CN107335442 A CN 107335442A CN 201710484851 A CN201710484851 A CN 201710484851A CN 107335442 A CN107335442 A CN 107335442A
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concave convex
convex rod
yttrium aluminate
photocatalyst material
ions
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CN107335442B (en
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李霞章
李飞虹
陆晓旺
姚超
左士祥
李忠玉
魏科年
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Changzhou University
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Changzhou University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • B01J35/39
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G29/00Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/06Metal salts, or metal salts deposited on a carrier
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/202Heteroatoms content, i.e. S, N, O, P
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/70Catalyst aspects

Abstract

The invention belongs to new chemical materialses field, composite photocatalyst material and its preparation method and application is changed on more particularly to a kind of Er ions yttrium aluminate/concave convex rod.Yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, water-bath is then carried out to vitreosol, is dried to xerogel, finally calcines, grinding obtains Er ions yttrium aluminate composite;It is distributed to again with concave convex rod in deionized water, regulation system pH promotes Er ions yttrium aluminate composite and concave convex rod compound, then is evaporated by water-bath to moisture, and grinding is to obtain Er ions yttrium aluminate/concave convex rod composite photocatalyst material after calcining.

Description

Composite photocatalyst material and its preparation are changed on a kind of Er ions yttrium aluminate/concave convex rod Methods and applications
Technical field
The invention belongs to new chemical materialses field, complex light is changed on more particularly to a kind of Er ions yttrium aluminate/concave convex rod Catalysis material and its preparation method and application.
Background technology
Up-conversion luminescence is that the photon of a high-energy is changed out on the photon for absorb two or more low energy. Rare earth element has unique electron structure so that rare earth luminescent material can absorb near-infrared, visible and ultraviolet etc. various The radiation of wavelength.Due to its internal energy level transition having between abundant 4f so that rare earth up-conversion luminescent material turns into luminous The main flow of material.Therefore, can be by the near-infrared in sunshine by rare earth up-conversion and the semiconductors coupling of ultraviolet light response Ultraviolet light is converted on light and visible ray, greatly improves the utilization rate of sunshine, so as to improve the photocatalytic activity of semiconductor.
The content of the invention
In order to solve the problems, such as the utilization rate of sunshine, the invention provides turn on a kind of Er ions yttrium aluminate/concave convex rod Composite photocatalyst material is changed, its composition formula is:Er3+YAlO3/ ATP,
Wherein, Er/ (Er+Y)=0.01~0.02, Er3+YAlO3Account for the 20%~60% of ATP mass.
Present invention also offers the preparation side that composite photocatalyst material is changed on a kind of above-mentioned Er ions yttrium aluminate/concave convex rod Method:
(1) yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, it is anti-then to carry out water-bath It should be dried to xerogel, finally calcining, grinding to vitreosol and obtain Er ions yttrium aluminate composite,
Wherein, the molar ratio of citric acid and metal ion (yttrium, erbium, aluminium three sum) is 1:1~5:1,
Bath temperature is 50~80 DEG C;
(2) the Er ions yttrium aluminate composite obtained in step (1) and concave convex rod are distributed in deionized water, adjusted System pH promotes Er ions yttrium aluminate composite and concave convex rod compound, then is evaporated by water-bath to moisture, is ground after calcining Mill obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material,
Regulation system pH is 2~5 so that Er3+YAlO3Different electric charges, i.e. concave convex rod surface are carried from concave convex rod surface With negative electrical charge, Er ions yttrium aluminate surface carries positive charge, promotes Er ions yttrium aluminate and bumps so as to produce electrostatic attraction Rod it is compound.
Present invention also offers on a kind of above-mentioned Er ions yttrium aluminate/concave convex rod change composite photocatalyst material application, Photocatalysis desulfurization is carried out using the composite photocatalyst material.
The beneficial effects of the present invention are:
It is found by the applicant that:Concave convex rod is due to the iron oxide containing semiconductor property inside it so that concave convex rod also has half Conductor nature, only can be to ultraviolet light response, so very low to the utilization rate of sunshine yet with its greater band gap;Cause This present invention is made on the nonabsorbable near infrared light of concave convex rod and visible ray by the way that rare earth up-conversion is compound with concave convex rod Ultraviolet light is converted to, has widened the photoresponse scope of concave convex rod indirectly, improves the utilization rate of sunshine;
The method that the present invention uses electrostatic attraction, under certain pH conditions, concave convex rod surface carries negative electricity, is changed on rare earth Material surface carries positive electricity, enhances the combination between conversion and semiconductor, avoids rare earth up-conversion and semiconductor Simple mechanical mixture, be easy to during photocatalysis desulfurization depart from the problem of;
Concave convex rod in the present invention is excited as semiconductor generates light induced electron with hole with sulfur-containing compound of degrading Meanwhile the peculiar absorption property that other semiconductors do not possess has been played, because itself having larger specific surface area and uniqueness Pore passage structure, the meeting absorbed portion sulfur-containing compound in photocatalysis sweetening process, so as to improve desulfurization degree.
Brief description of the drawings
Fig. 1 is Y prepared by the embodiment of the present invention 10.98Er0.02AlO3, 40%Y0.98Er0.02AlO3/ ATP's and raw material A TP XRD;
Fig. 2 is Y prepared by the embodiment of the present invention 10.98Er0.02AlO3SEM figure;
Fig. 3 is 40%Y prepared by the embodiment of the present invention 10.98Er0.02AlO3/ ATP SEM figures.
Embodiment
Embodiment 1
(1) by 3.01g yttrium nitrates, 0.07g erbium nitrates, 3.00g aluminum nitrates and 10.09g citric acids be added to 100ml go from Stirred in sub- water, then 60 DEG C of water-baths to vitreosol, by its 80 DEG C dryings to xerogel, last 1100 DEG C of calcinings 2h, Grinding obtains Er ions yttrium aluminate composite Y0.98Er0.02AlO3
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.4g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 40%Y after 2h0.98Er0.02AlO3/ATP。
X-ray powder diffraction is carried out to gained sample and characterizes its structure and composition, and is seen using SEM The pattern of sample is examined, the 40%Y prepared according to the technique of embodiment 10.98Er0.02AlO3/ ATP XRD is as shown in figure 1, compound Occurs Er in material respectively3+YAlO3With ATP characteristic peak, illustrate Er3+YAlO3Success is compound with ATP, has prepared Er3+ YAlO3Composite photocatalyst material is changed on/ATP;
Y obtained by the present embodiment step (1)0.98Er0.02AlO3SEM it is as shown in Figure 2:Show particle shape;This reality Apply the 40%Y obtained by a step (2)0.98Er0.02AlO3/ ATP SEM is as shown in Figure 3:40%Y0.98Er0.02AlO3It is tight with ATP Close combination, it is consistent with XRD results;
Present invention also offers one kind to utilize composite photocatalyst material 40%Y manufactured in the present embodiment0.98Er0.02AlO3/ The method that ATP carries out photocatalysis desulfurization:0.4031g dibenzothiophenes is weighed to be dissolved in 500ml normal octanes to prepare 200ppm Simulation oil, 40%Y is added in photocatalytic reaction device0.98Er0.02AlO3/ ATP and simulation oil (mass ratio 1:1000), secretly Absorption 30min after introduce simulated solar irradiation, every half an hour collect a sample, add N-N, dimethylformamide extraction on Layer clear liquid, sulfur content is determined with UV suLfur anaLyzer, desulfurization degree (%) calculates according to following equation:
D=(1-Ct/C0) * 100%
Wherein:C0For the sulfur content of initial soln, CtSulfur content during to react the t times in solution system, in 3h illumination Under, 40%Y0.98Er0.02AlO3/ ATP desulfurization degree has reached 94%.
Embodiment 2
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.2g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 20%Y after 2h0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 3
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.6g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 60%Y after 2h0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 4
(1) by 3.03g yttrium nitrates, 0.04g erbium nitrates, 3.00g aluminum nitrates and 10.09g citric acids be added to 100ml go from Stirred in sub- water, then 60 DEG C of water-baths to vitreosol, by its 80 DEG C dryings to xerogel, last 1100 DEG C of calcinings 2h, Grinding obtains Er ions yttrium aluminate composite Y0.99Er0.01AlO3
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.2g steps (1)0.99Er0.01AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 20%Y after 2h0.99Er0.01AlO3/ATP。
Subsequent detection such as embodiment 1.
Embodiment 5
(1) with embodiment 4;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.6g steps (1)0.99Er0.01AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, regulation system pH is 4.5, then is evaporated by 60 DEG C of water-bath to moisture, 400 DEG C of calcinings Grinding obtains Er ions yttrium aluminate/concave convex rod composite photocatalyst material 60%Y after 2h0.99Er0.01AlO3/ATP。
Subsequent detection such as embodiment 1.
Comparative example 1
Step is not adjusted in (2) to acid-base value, and remaining operation is the same as embodiment 1:
(1) with embodiment 1;
(2) the Er ions yttrium aluminate composite Y that will be obtained in 0.4g steps (1)0.98Er0.02AlO3With 1.0g concave convex rods It is distributed in 100ml deionized waters, is evaporated by 60 DEG C of water-bath to moisture, grinding is to obtain erbium to mix after 400 DEG C of calcining 2h Miscellaneous yttrium aluminate/concave convex rod composite photocatalyst material 40%Y0.98Er0.02AlO3/ATP。
Subsequent detection such as embodiment 1.Under 3h illumination, the 40%Y of this comparative example preparation0.98Er0.02AlO3/ ATP's Desulfurization degree is only 72%, and this is due to that shaping adhesion in this comparative example between concave convex rod and up-conversion is undesirable Caused by.

Claims (6)

1. change composite photocatalyst material on a kind of Er ions yttrium aluminate/concave convex rod, it is characterised in that:The composite photocatalyst material The composition formula of material is Er3+YAlO3/ATP。
2. change composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 1, it is characterised in that:Press Mol ratio calculates, Er/ (Er+Y)=0.01~0.02;Er3+YAlO3Account for the 20%~60% of ATP mass.
3. the preparation method of composite photocatalyst material is changed on a kind of Er ions yttrium aluminate/concave convex rod, it is characterised in that:The system Preparation Method is,
(1) yttrium nitrate, erbium nitrate, aluminum nitrate and citric acid are added in deionized water and stirred, then carry out water-bath extremely Vitreosol, it is dried to xerogel, finally calcines, grinding obtains Er ions yttrium aluminate composite;
(2) the Er ions yttrium aluminate composite obtained in step (1) and concave convex rod are distributed in deionized water, regulation system PH, then be evaporated by water-bath to moisture, grinding is to obtain Er ions yttrium aluminate/concave convex rod composite photocatalyst material after calcining Material.
4. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special Sign is:In step (1), the molar ratio of citric acid and metal ion is 1:1~5:1.
5. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special Sign is:In step (1), bath temperature is 50~80 DEG C.
6. changing the preparation method of composite photocatalyst material on Er ions yttrium aluminate/concave convex rod as claimed in claim 3, it is special Sign is:In step (2), regulation system pH is 2~5.
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Cited By (4)

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CN108565479A (en) * 2018-04-16 2018-09-21 淮阴工学院 Attapulgite composite material and its preparation method and application
CN109110928A (en) * 2018-08-31 2019-01-01 江苏新亿源环保科技有限公司 The cultural method of biomembrane on a kind of biologic packing material
CN109621940A (en) * 2018-12-12 2019-04-16 常州大学 A kind of rear-earth-doped lithium niobate/attapulgite composite photocatalyst material and the preparation method and application thereof
CN109999838A (en) * 2019-05-09 2019-07-12 江苏纳欧新材料有限公司 A kind of wide spectrum response vanadic sulfide/palygorskite nano composite material preparation method and application

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CN104710168A (en) * 2015-03-24 2015-06-17 武汉理工大学 Dysprosium-doped hexagonal yttrium aluminate ceramic powder and preparation method thereof
CN106732588A (en) * 2016-11-15 2017-05-31 辽宁大学 Catalyst of Cr (VI) and its preparation method and application in one kind conversion aqueous solution

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CN102409404A (en) * 2010-12-16 2012-04-11 中国科学院福建物质结构研究所 Novel medium wave infrared laser crystal made of erbium activated calcium yttrium aluminates
CN102078807A (en) * 2011-01-05 2011-06-01 吉林大学 Er<3+>:YAlO3/TiO2-loaded photocatalyst and preparation method thereof
CN102828247A (en) * 2011-06-17 2012-12-19 上海衍易电气设备科技有限公司 Preparation method of erbium-doped calcium yttrium aluminate laser crystal
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CN108565479B (en) * 2018-04-16 2020-09-25 淮阴工学院 Attapulgite composite material and preparation method and application thereof
CN109110928A (en) * 2018-08-31 2019-01-01 江苏新亿源环保科技有限公司 The cultural method of biomembrane on a kind of biologic packing material
CN109621940A (en) * 2018-12-12 2019-04-16 常州大学 A kind of rear-earth-doped lithium niobate/attapulgite composite photocatalyst material and the preparation method and application thereof
CN109999838A (en) * 2019-05-09 2019-07-12 江苏纳欧新材料有限公司 A kind of wide spectrum response vanadic sulfide/palygorskite nano composite material preparation method and application

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