CN110465321A - 一种钼酸银/氮化碳复合可见光催化剂的制备方法 - Google Patents
一种钼酸银/氮化碳复合可见光催化剂的制备方法 Download PDFInfo
- Publication number
- CN110465321A CN110465321A CN201910811070.8A CN201910811070A CN110465321A CN 110465321 A CN110465321 A CN 110465321A CN 201910811070 A CN201910811070 A CN 201910811070A CN 110465321 A CN110465321 A CN 110465321A
- Authority
- CN
- China
- Prior art keywords
- crucible
- room temperature
- silver molybdate
- visible light
- moo
- 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
- MHLYOTJKDAAHGI-UHFFFAOYSA-N silver molybdate Chemical compound [Ag+].[Ag+].[O-][Mo]([O-])(=O)=O MHLYOTJKDAAHGI-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003054 catalyst Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229910015667 MoO4 Inorganic materials 0.000 claims abstract description 48
- 239000007864 aqueous solution Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000013019 agitation Methods 0.000 claims abstract description 12
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 10
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 101710134784 Agnoprotein Proteins 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000001354 calcination Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 4
- 238000007146 photocatalysis Methods 0.000 abstract description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 3
- 229910002056 binary alloy Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 4
- 229940012189 methyl orange Drugs 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 229910003875 O—Mo—O Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- WIKQEUJFZPCFNJ-UHFFFAOYSA-N carbonic acid;silver Chemical compound [Ag].[Ag].OC(O)=O WIKQEUJFZPCFNJ-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical class O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- LKZMBDSASOBTPN-UHFFFAOYSA-L silver carbonate Substances [Ag].[O-]C([O-])=O LKZMBDSASOBTPN-UHFFFAOYSA-L 0.000 description 1
- 229910000161 silver phosphate Inorganic materials 0.000 description 1
- KQTXIZHBFFWWFW-UHFFFAOYSA-L silver(I) carbonate Inorganic materials [Ag]OC(=O)O[Ag] KQTXIZHBFFWWFW-UHFFFAOYSA-L 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000004416 surface enhanced Raman spectroscopy Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/343—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of ultrasonic wave energy
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/26—Organic substances containing nitrogen or phosphorus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Catalysts (AREA)
Abstract
本发明涉及一种钼酸银/氮化碳复合可见光催化剂的制备方法,该复合材料为二元体系,其中钼酸银的质量百分数为10~30%,余量为g‑C3N4。制备方法先煅烧三聚氰胺制备超薄g‑C3N4纳米片,再将其分散在水中,加入AgNO3水溶液,在磁力搅拌条件下加入Na2MoO4水溶液,离心干燥后得到钼酸银/氮化碳复合可见光催化剂。所制备的钼酸银/氮化碳复合可见光催化剂产率高,光催化性能优异,具有优异的应用前景。
Description
技术领域
本发明涉及纳米材料制备及应用技术领域,特别涉及一种钼酸银/氮化碳复合可见光催化剂的制备方法。
背景技术
氮化碳作为一种半导体材料,结构稳定,常温下可以在强酸或强碱中稳定存在。然而,g-C3N4光生电子和空穴有非常高的几率重新复合,且它们的比表面积都比较低,这两种原因在一定程度上影响了它的光催化性能效果。为了使g-C3N4的催化效率提高,一系列半导体/g-C3N4异质结光催化剂纷纷出现,如Ag/AgBr/g-C3N4、Ag3PO4/g-C3N4以及Ag2CO3/g-C3N4,以达到扬长避短、优势互补的目的。如何在提高g-C3N4电荷分离效率以及含银半导体稳定性之后,进一步解决g-C3N4比表面积太小的问题,可以提高g-C3N4基的光催化剂的性能。
钼酸银(Ag2MoO4)是钼酸银家族的重要成员之一,由于其良好的物理和化学性质,在光致发光和表面增强拉曼散射中得到了广泛的应用。到目前为止,Ag2MoO4的纳米和微结构多种多样,包括纳米粒子(Nps)、线状纳米结构,甚至类似花卉的微结构。有研究在聚乙烯吡咯烷酮存在下通过苛刻的微波辅助水热法制备的立方状Ag/Ag2MoO4复合材料,然而,人们对到Ag2MoO4的光催化活性的研究较少,因此,如何采用简单的方法将氮化碳和钼酸银进行复合,制备得到催化活性高的钼酸银和氮化碳的复合材料具有重大意义。
发明内容
为解决上述技术问题,本发明公开了一种钼酸银/氮化碳复合可见光催化剂的制备方法,包括以下步骤:
(1)向坩埚中加入三聚氰胺,盖上坩埚盖后煅烧,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4;
(2)将步骤(1)得到的置于坩埚中,坩埚上口敞开,煅烧,冷却至室温,将得到的样品研磨成粉末状,即得到所述的超薄g-C3N4纳米片,记为g-C3N4-NS;
(3)将步骤(2)得到的超薄g-C3N4纳米片分别取0.0874-0.3385g分散在8ml水中超声处理后30min,向其中加入3ml浓度为0.03M的AgNO3水溶液,然后磁力搅拌30min后,缓慢加入2ml浓度为0.03M的Na2MoO4水溶液,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银/氮化碳复合可见光催化剂。
所述步骤(1)具体为:(1)向坩埚中加入5g三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4,所述升温速率为2℃/min。
所述步骤(2)具体为:向坩埚中加入三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4;所述升温速率为2℃/min。
本发明的有益效果:该制备方法较为简单,制备条件容易控制。所制备的钼酸银负载石墨相氮化碳复合光催化剂是一种绿色环保的高效催化剂,具有无二次污染,催化效率高等优点,具有实际应用价值,可以用于大规模应用生产。
附图说明
图1为实施例1-3制备得到的超薄g-C3N4-NS的TEM图;
图2为对比例1制备得到的钼酸银的TEM图;
图3为实施例3制备得到的30%Ag2MoO4/g-C3N4-NS的TEM图;
图4为实施例1-3制备得到的g-C3N4-NS、10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS和对比例1制备得到的钼酸银的红外光谱图;
图5为实施例1-3制备得到的g-C3N4-NS、10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS和对比例1制备得到的钼酸银的X射线衍射谱图。
图6实施例1-3制备得到的g-C3N4-NS、10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS和对比例1制备得到的钼酸银对甲基橙的降解率和时间的关系。
具体实施方式
以下实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以对本发明进行若干改进和修饰,这些改进和修饰也落入本发明权利要求的保护范围内。对所公开的实施例的下述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例中,而是可以应用于符合本文所公开的原理和新颖点相一致的更宽的范围。
除非另外定义,本文中所使用的所有技术和科学术语具有与本发明所属技术领域的普通技术人员通常理解的相同意义。
实施例1一种钼酸银/氮化碳复合可见光催化剂的制备方法
(1)向坩埚中加入5g三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4,所述升温速率为2℃/min;
(2)将步骤(1)得到的体相g-C3N4置于坩埚中,坩埚上口敞开,从室温升温至520℃后煅烧4h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的超薄g-C3N4-NS;
(3)将步骤(2)得到的0.3385g超薄g-C3N4-NS分散在8ml水中超声处理后30min,向其中加入3ml浓度为0.03M的AgNO3水溶液,然后磁力搅拌30min后,缓慢加入2ml浓度为0.03M的Na2MoO4水溶液,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银/氮化碳复合可见光催化,记为10%Ag2MoO4/g-C3N4-NS,即为Ag2MoO4/g-C3N4-NS中Ag2MoO4的质量分数为10%。
实施例2一种钼酸银/氮化碳复合可见光催化剂的制备方法
(1)向坩埚中加入5g三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4,所述升温速率为2℃/min;
(2)将步骤(1)得到的体相g-C3N4置于坩埚中,坩埚上口敞开,从室温升温至520℃后煅烧4h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的超薄g-C3N4-NS;
(3)将步骤(2)得到的0.1503g超薄g-C3N4-NS分散在8ml水中超声处理后30min,向其中加入3ml浓度为0.03M的AgNO3水溶液,然后磁力搅拌30min后,缓慢加入2ml浓度为0.03M的Na2MoO4水溶液,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银/氮化碳复合可见光催化剂,记为20%Ag2MoO4/g-C3N4-NS,即为Ag2MoO4/g-C3N4-NS中Ag2MoO4的质量分数为20%。
实施例3一种钼酸银/氮化碳复合可见光催化剂的制备方法
(1)向坩埚中加入5g三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4,所述升温速率为2℃/min;
(2)将步骤(1)得到的体相g-C3N4置于坩埚中,坩埚上口敞开,从室温升温至520℃后煅烧4h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的超薄g-C3N4-NS;
(3)将步骤(2)得到的0.0874g超薄g-C3N4-NS分散在8ml水中超声处理后30min,向其中加入3ml浓度为0.03M的AgNO3水溶液,然后磁力搅拌30min后,缓慢加入2ml浓度为0.03M的Na2MoO4水溶液,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银/氮化碳复合可见光催化剂,记为30%Ag2MoO4/g-C3N4-NS,即为Ag2MoO4/g-C3N4-NS中Ag2MoO4的质量分数为30%。
对比例1一种钼酸银的制备方法
在8ml水中,加入3ml浓度为0.03M的AgNO3水溶液和2ml浓度为0.03M的Na2MoO4水溶液混合后,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银。
实验例1SEM和TEM
本发明对制备得到超薄g-C3N-NS、钼酸银、30%Ag2MoO4/g-C3N4-NS了电镜分析。图1为实施例1-3制备得到的超薄g-C3N-NS的TEM图,可以看出超薄g-C3N4-NS为片状;图2为对比例1制备得到的钼酸银的TEM图;图3为实施例3制备得到的30%Ag2MoO4/g-C3N4-NS的TEM图,其中,Ag2MoO4为纳米球状,Ag2MoO4均匀地分布在g-C3N-NS上,直径在350nm,且分布较为均匀。
实验例2红外光谱
图2为实施例1-3制备得到的g-C3N4-NS、10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS和对比例1制备得到的钼酸银的红外光谱图。可以清楚地看到,10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS在1225cm-1处、1310cm-1处、1412cm-1处、1454cm-1处、1588cm-1和1655cm-1处出现的六个特征吸收峰分别是由C-N和C=N键的伸缩振动导致,说明其中含有g-C3N4-NS;最为明显的峰在830cm-1处出现,根据峰值可以判断此处的伸缩振动峰为Ag2MoO4中O-Mo-O,体现了Ag2MoO4制备成功。从图4中可以看出,随着g-C3N4质量分数增大,830cm-1处这个特征峰透过率不断减小。综上所述,此FTIR的结果说明Ag2MoO4/g-C3N4-NS制备成功,g-C3N4-NS和Ag2MoO4两种材料成功复合。
实验例3X射线衍射图谱
图5为实施例1-3制备得到的g-C3N4-NS、10%Ag2MoO4/g-C3N4-NS、20%Ag2MoO4/g-C3N4-NS、30%Ag2MoO4/g-C3N4-NS和对比例1制备得到的钼酸银的X射线衍射图谱。g-C3N4在13.8°处和27.4°处分别有两个衍射峰,13.8°处相对应于g-C3N4的3-s-三嗪层间结构,而27.4°处是因为g-C3N4共轭芳香环发生夹层叠加。
实验例4光催化性能测试
分别取50mL,10mg/L的甲基橙于三个250mL烧杯,并测其初始浓度C0。称取50mg催化剂,黑暗条件下超声30min,遮光处理放于氙灯光源下,并往烧杯中加入磁子。将烧杯放置于磁力搅拌器上光照10min,取上层清液在8000r/min的速度下离心5min,测出降解离心后样品浓度C1。通过计算公式的到降解率=[(C0-C1)/C0]×100%,计算甲基橙降解效率与时间的关系。如图6所示,看出30%Ag2MoO4/g-C3N4-NS的光催化降解甲基橙的降解率最高。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (3)
1.一种钼酸银/氮化碳复合可见光催化剂的制备方法,其特征在于:包括以下步骤:
(1)向坩埚中加入三聚氰胺,盖上坩埚盖后煅烧,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4;
(2)将步骤(1)得到的体相g-C3N4置于坩埚中,坩埚上口敞开,煅烧,冷却至室温,将得到的样品研磨成粉末状,即得到所述的超薄g-C3N4纳米片;
(3)将步骤(2)得到的超薄g-C3N4纳米片取0.0874-0.3385g分散在8ml水中超声处理后30min,向其中加入3mL浓度为0.03M的AgNO3水溶液,然后磁力搅拌30min后,缓慢加入2mL浓度为0.03M的Na2MoO4水溶液,磁力搅拌1h后,将所得溶液在离心机中以8000r/min离心5min,分别经过水和乙醇洗涤后,将所得产物在60℃下干燥12h后即得到所述的钼酸银/氮化碳复合可见光催化剂。
2.如权利要求1所述的钼酸银/氮化碳复合可见光催化剂的制备方法,其特征在于:所述步骤(1)具体为:(1)向坩埚中加入5g三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4,所述升温速率为2℃/min。
3.如权利要求1所述的钼酸银/氮化碳复合可见光催化剂的制备方法,其特征在于:所述步骤(2)具体为:向坩埚中加入三聚氰胺,盖上坩埚盖后从室温升温至520℃后煅烧2h,冷却至室温,将得到的样品研磨成粉末状,即得到所述的体相g-C3N4;所述升温速率为2℃/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910811070.8A CN110465321A (zh) | 2019-08-30 | 2019-08-30 | 一种钼酸银/氮化碳复合可见光催化剂的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910811070.8A CN110465321A (zh) | 2019-08-30 | 2019-08-30 | 一种钼酸银/氮化碳复合可见光催化剂的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110465321A true CN110465321A (zh) | 2019-11-19 |
Family
ID=68514212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910811070.8A Pending CN110465321A (zh) | 2019-08-30 | 2019-08-30 | 一种钼酸银/氮化碳复合可见光催化剂的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110465321A (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113138184A (zh) * | 2020-01-17 | 2021-07-20 | 同济大学 | 用于对内消旋多手性中心化合物进行检测的基底材料 |
CN115025813A (zh) * | 2022-05-11 | 2022-09-09 | 福州大学 | 一种用于去除水中藻类的光催化材料及制备方法 |
CN115487810A (zh) * | 2022-11-01 | 2022-12-20 | 上海大学 | 一种氧化铈/钼酸银异质结材料及其制备方法和应用 |
CN117210080A (zh) * | 2023-10-19 | 2023-12-12 | 青岛中氟氟碳材料有限公司 | 一种高铁内壁用防污染水性涂料的制备方法及应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105728010A (zh) * | 2016-02-02 | 2016-07-06 | 常州大学 | 一种抗菌钼酸银石墨相氮化碳复合可见光催化剂的制备方法 |
CN107282084A (zh) * | 2017-07-28 | 2017-10-24 | 合肥工业大学 | 一种高效降解抗生素的掺氯碳量子点/g‑C3N4纳米片复合材料的制备方法 |
US20180008967A1 (en) * | 2016-07-06 | 2018-01-11 | University-Industry Cooperation Group Of Kyung Hee University | Hybrid nanostructured photocatalysts and preparation method thereof |
CN108927193A (zh) * | 2018-07-05 | 2018-12-04 | 无锡江南电缆有限公司 | 一种可见光响应的光催化剂及其制备方法 |
-
2019
- 2019-08-30 CN CN201910811070.8A patent/CN110465321A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105728010A (zh) * | 2016-02-02 | 2016-07-06 | 常州大学 | 一种抗菌钼酸银石墨相氮化碳复合可见光催化剂的制备方法 |
US20180008967A1 (en) * | 2016-07-06 | 2018-01-11 | University-Industry Cooperation Group Of Kyung Hee University | Hybrid nanostructured photocatalysts and preparation method thereof |
CN107282084A (zh) * | 2017-07-28 | 2017-10-24 | 合肥工业大学 | 一种高效降解抗生素的掺氯碳量子点/g‑C3N4纳米片复合材料的制备方法 |
CN108927193A (zh) * | 2018-07-05 | 2018-12-04 | 无锡江南电缆有限公司 | 一种可见光响应的光催化剂及其制备方法 |
Non-Patent Citations (1)
Title |
---|
ZHANG JUNLEI ET AL: "Novel beta-Ag2MoO4/g-C3N4 heterojunction catalysts with highly enhanced visible-light-driven photocatalytic activity", 《RSC ADVANCES》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113138184A (zh) * | 2020-01-17 | 2021-07-20 | 同济大学 | 用于对内消旋多手性中心化合物进行检测的基底材料 |
CN113138184B (zh) * | 2020-01-17 | 2022-04-19 | 同济大学 | 用于对内消旋多手性中心化合物进行检测的基底材料 |
CN115025813A (zh) * | 2022-05-11 | 2022-09-09 | 福州大学 | 一种用于去除水中藻类的光催化材料及制备方法 |
CN115487810A (zh) * | 2022-11-01 | 2022-12-20 | 上海大学 | 一种氧化铈/钼酸银异质结材料及其制备方法和应用 |
CN117210080A (zh) * | 2023-10-19 | 2023-12-12 | 青岛中氟氟碳材料有限公司 | 一种高铁内壁用防污染水性涂料的制备方法及应用 |
CN117210080B (zh) * | 2023-10-19 | 2024-03-29 | 青岛中氟氟碳材料有限公司 | 一种高铁内壁用防污染水性涂料的制备方法及应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110465321A (zh) | 一种钼酸银/氮化碳复合可见光催化剂的制备方法 | |
CN104307552B (zh) | TiO2/g‑C3N4复合可见光催化剂的制备方法 | |
Zhou et al. | The preparation, and applications of gC 3 N 4/TiO 2 heterojunction catalysts—a review | |
CN102580739B (zh) | 一种石墨烯/钼酸银复合可见光催化剂及其制备方法 | |
CN102580736B (zh) | 一种石墨烯/钒酸银纳米复合可见光催化剂及其制备方法 | |
Zhang et al. | Mass production, enhanced visible light photocatalytic efficiency, and application of modified ZnO nanocrystals by carbon dots | |
CN105727999B (zh) | 一种制备四元硫化物量子点基异质结高效光催化剂方法 | |
Lu et al. | Facile hydrothermal synthesis of carbon dots (CDs) doped ZnFe2O4/TiO2 hybrid materials with high photocatalytic activity | |
Maavia et al. | Facile synthesis of g-C3N4/CdWO4 with excellent photocatalytic performance for the degradation of Minocycline | |
CN103990486A (zh) | 一种硫化铟/氮化碳复合纳米材料的制备方法 | |
CN108262054A (zh) | 一种钒酸银/多孔氮化碳异质结复合光催化剂的制备方法 | |
CN105417507A (zh) | 一种氮化碳纳米颗粒的制备方法及所得产品 | |
Arshadnia et al. | SnFe2O4/SnO2/PANI magnetically separable photocatalyst for decolorization of two dye mixture in aqueous solution | |
CN105642329A (zh) | 一种负载型石墨相碳化氮复合材料,制备方法及其应用 | |
Peng et al. | Construction of ZnO nanosheet arrays within BiVO4 particles on a conductive magnetically driven cilia film with enhanced visible photocatalytic activity | |
Shekofteh-Gohari et al. | Ternary ZnO/Ag3VO4/Fe3O4 nanocomposites: Novel magnetically separable photocatalyst for efficiently degradation of dye pollutants under visible-light irradiation | |
Nithya et al. | Photocatalytic efficiency of brilliant green dye on ZnO loaded on cotton stalk activated carbon | |
CN105597765A (zh) | 一种In2O3/ZnFe2O4纳米异质结复合光催化材料及其制备方法 | |
CN106268881B (zh) | 一种方块状Ag2MoO4@Ag@AgBr三元复合物及其制备方法和应用 | |
CN105289660B (zh) | 一种铁酸镁/硫化钼异质结纳米线的合成方法和用途 | |
CN105478153B (zh) | 一种CeVO4/Ag/g‑C3N4复合光催化剂及其制备方法 | |
CN107043124A (zh) | 一种硫化镉纳米花、制备及其应用 | |
Fan et al. | Preparation of g-C3N4/MoS2 composite material and its visible light catalytic performance | |
CN104492464B (zh) | 一种碘化银/β型氧化铋复合材料的制备方法 | |
CN102580720B (zh) | 可见光响应的纳米氧化锌-氧化铋复合光催化剂及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191119 |