CN115216290B - 一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 - Google Patents
一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 Download PDFInfo
- Publication number
- CN115216290B CN115216290B CN202210910004.8A CN202210910004A CN115216290B CN 115216290 B CN115216290 B CN 115216290B CN 202210910004 A CN202210910004 A CN 202210910004A CN 115216290 B CN115216290 B CN 115216290B
- Authority
- CN
- China
- Prior art keywords
- corrosion
- modified carbon
- sulfosalicylic acid
- steel
- early warning
- 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.)
- Active
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 65
- 238000005260 corrosion Methods 0.000 title claims abstract description 65
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 21
- 150000001721 carbon Chemical class 0.000 title claims abstract description 19
- 230000009977 dual effect Effects 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 17
- WXHLLJAMBQLULT-UHFFFAOYSA-N 2-[[6-[4-(2-hydroxyethyl)piperazin-1-yl]-2-methylpyrimidin-4-yl]amino]-n-(2-methyl-6-sulfanylphenyl)-1,3-thiazole-5-carboxamide;hydrate Chemical compound O.C=1C(N2CCN(CCO)CC2)=NC(C)=NC=1NC(S1)=NC=C1C(=O)NC1=C(C)C=CC=C1S WXHLLJAMBQLULT-UHFFFAOYSA-N 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- -1 sulfosalicylic acid modified carbon Chemical class 0.000 claims description 23
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 13
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide Substances CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 claims description 12
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 2
- 238000010791 quenching Methods 0.000 abstract description 9
- 230000000171 quenching effect Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 11
- 239000000243 solution Substances 0.000 description 9
- 238000001453 impedance spectrum Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000009920 chelation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/65—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing carbon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/01—Crystal-structural characteristics depicted by a TEM-image
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
本发明公开了一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法,属于腐蚀防护技术领域。本发明用磺基水杨酸对氮掺杂碳点进行表面接枝,得到改性碳点。该改性碳点与Fe2+和Fe3+离子反应均可产生荧光淬灭,用于预警钢铁材料的腐蚀反应,相较于未改性碳点仅能和Fe3+离子反应产生荧光淬灭,改性碳点的适用范围更广、检测灵敏度更高;改性碳点还可以在金属表面吸附,抑制钢铁材料在酸性条件下的腐蚀过程,相较于未改性的碳点,缓蚀性能更加优异。本发明有效地提升了碳点的缓蚀效率,并且拓展了碳点的使用功能,同时其原料绿色安全,价格低廉,具有广阔的应用前景。
Description
技术领域
本发明属于腐蚀防护技术领域,具体涉及一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法。
背景技术
工业技术的快速发展中,金属腐蚀一直是一个全球性的问题,造成巨大的经济损失和严重的安全问题。全球每年因腐蚀造成的经济损失高达GDP的3.34%。因此,工业界开发了各种金属腐蚀防护方法。缓蚀剂以其成本低、适应性强、经济效益好等优势被广泛应用于能源、交通、建筑等行业中,近年来,已成功开发出一系列具有高防腐效率的缓蚀剂。同时,监测金属的初期腐蚀萌生是十分必要的,在腐蚀过程中,如果能对腐蚀部位发出警告,就可以在观察到腐蚀产物之前确定活性腐蚀位点,从而采取有效措施抑制腐蚀活动的进一步发展。
碳点是一种具有优异光致发光性能的零维碳纳米材料,由于其低毒性、制备方便和官能化容易等优点,碳点已被广泛应用于腐蚀与防护领域,并取得了一定的缓蚀效果。此外,作为一种新型的荧光纳米材料,碳点已经成为金属阳离子(Cu2+、Hg2+、Fe3+、Cd2+、Pb2+)、阴离子(Cl-、F-、S2-、I-、PO4 3-)等检测的极佳候选者。其中,碳点可以与Cu2+和Fe3+等发生荧光淬灭,这一性能满足人们在腐蚀环境监测预警的需求。基于碳点表面基团的丰富性和可调控性,可以通过对其表面基团进行修饰改性,使其具有腐蚀预警和缓蚀双重功能。
发明内容
本发明的目的在于提供一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法,所述改性碳点缓蚀性能优越,并且具备腐蚀预警功能,以解决现有技术中的碳点缓蚀性能不高且无法及时确定腐蚀位点的技术问题。
为了达到上述目的,本发明技术方案如下:
一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法,其特征在于,该改性碳点由氮掺杂碳点和磺基水杨酸反应生成,用于钢铁材料的腐蚀与防护领域。
进一步地,所述的磺基水杨酸改性碳点的制备方法,包括以下制备步骤:取50mg氮掺杂碳点(CDs)溶解于50~100mL四氢呋喃溶剂中,依次加入30~90mg N-羟基琥珀酰亚胺(NHS)、100~200mg磺基水杨酸(SSA)、88~160mg 1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC),搅拌反应24~48h后,将混合物溶液在60~85℃加热6~12h,除去四氢呋喃和其他未反应物质,得到磺基水杨酸改性碳点(CDs-SSA)。
进一步地,上述步骤中NHS与EDC是作为基团活化剂使用,不参与合成反应。
进一步地,磺基水杨酸改性碳点对于钢铁材料具备优异的腐蚀感应能力,当处于Fe2+或Fe3+溶液环境中,碳点本身强烈的荧光会被淬灭,使其能够快速、灵敏地检测铁离子,相比于传统碳点只能与Fe3+离子反应实现荧光淬灭,该磺基水杨酸改性碳点的应用范围更广,可以更加快速、准确地预警钢铁腐蚀。
进一步地,磺基水杨酸和氮掺杂碳点的表面基团均可以在钢铁材料表面产生化学吸附。将钢铁试样浸泡在盐酸或硫酸等酸性溶液中时,该磺基水杨酸改性碳点可以稳定吸附在钢基体表面,形成致密的保护膜,抑制基体金属腐蚀,产生良好的缓蚀作用。
本发明具有以下优点及突出性的技术效果:本发明制备了一种具有腐蚀预警和缓蚀双重功能的改性碳点,相比于传统的碳点,磺基水杨酸改性碳点吸附位点更多,具有更为优异的缓蚀效果,能更好地抑制金属腐蚀的过程。同时该磺基水杨酸改性碳点还具有很强的荧光效果,可以与金属材料发生腐蚀时产生的Fe2+或Fe3+离子发生鳌合反应,产生明显的荧光猝灭现象,预警金属腐蚀的发生。本发明的磺基水杨酸改性碳点CDs-SSA具有腐蚀预警和缓蚀的双重效果,同时制备流程简单、生产价格低,具有广阔的应用前景。
附图说明
图1为实施例1中制备的CDs-SSA的透射电子显微图像和粒径分布统计图。
图2a为实施例2制备的CDs-SSA与Fe2+离子的荧光猝灭现象。
图2b为实施例2制备的CDs-SSA与Fe3+离子的荧光猝灭现象。
图3为实施例3中添加了磺基水杨酸改性碳点和纯盐酸中Q235钢在浸泡后的电化学阻抗谱。
具体实施方式
下面结合附图1~3和实施例对本发明予以具体说明。下述实施例是说明性的,不是限定性的,不能以下述实施例来限定本发明的保护范围。
实施例1
1、取50mg氮掺杂碳点(CDs)溶解于50mL四氢呋喃溶剂中,依次加入30mg N-羟基琥珀酰亚胺(NHS)、100mg磺基水杨酸(SSA)、88mg1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC),搅拌反应24h。
2、将反应后的混合溶液在60℃加热12h,除去四氢呋喃和其他未反应物质,得到磺基水杨酸改性碳点(CDs-SSA)。
图1为实施例1中制备的磺基水杨酸改性碳点CDs-SSA的透射电子显微图像和粒径分布统计图,可以看出,CDs-SSA呈分布均匀的球形,平均晶粒尺寸为16~25nm。
实施例2
1、取50mg氮掺杂碳点(CDs)溶解于100mL四氢呋喃溶剂中,依次加入60mg N-羟基琥珀酰亚胺(NHS)、150mg磺基水杨酸(SSA)、120mg 1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC),搅拌反应36h。
2、将反应后的混合溶液在70℃加热9h,除去四氢呋喃和其他未反应物质,得到磺基水杨酸改性碳点(CDs-SSA)。
3、将CDs-SSA配制成质量浓度为100mg/L的溶液,分别加入不同浓度的Fe2+或Fe3+离子,其浓度梯度均设置为0、10-6、10-5、10-4、5×10-4、10-3、10-2mol/L。
图2a为实施例2制备的CDs-SSA与Fe2+离子的荧光猝灭现象,从左至右溶液中Fe2+离子的浓度依次为0、10-6、10-5、10-4、5×10-4、10-3、10-2mol/L,结果表明,当溶液中Fe2+离子浓度达到10-3mol/L时,荧光已经发生明显猝灭。
图2b为实施例2制备的CDs-SSA与Fe3+离子的荧光猝灭现象,从左至右溶液中Fe3+离子的浓度依次为0、10-6、10-5、10-4、5×10-4、10-3、10-2mol/L,结果表明,当溶液中Fe3+离子浓度达到10-4mol/L时,就已经能观察到荧光有明显减弱,在5×10-4mol/L浓度时荧光已经发生明显猝灭。
图2a和图2b表明实施例2中制备的磺基水杨酸改性碳点CDs-SSA与Fe2+和Fe3+离子均能发生螯合反应,产生明显的荧光猝灭现象,可用于钢铁材料的腐蚀预警。
实施例3
1、取50mg氮掺杂碳点(CDs)溶解于100mL四氢呋喃溶剂中,依次加入90mg N-羟基琥珀酰亚胺(NHS)、200mg磺基水杨酸(SSA)、160mg 1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC),搅拌反应48h。
2、将反应后的混合溶液在85℃加热6h,除去四氢呋喃和其他未反应物质,得到磺基水杨酸改性碳点(CDs-SSA)。
3、利用电化学工作站测量了钢在添加和不添加磺基水杨酸改性碳点后的电化学阻抗谱,测试溶液为1M HCl溶液,测试电极为Q235钢,磺基水杨酸改性碳点的浓度为200mg/L。
4、图3为实施例3中添加了磺基水杨酸改性碳点和纯盐酸中Q235钢在浸泡后的电化学阻抗谱。可以发现,在浸泡12h与24h时,纯盐酸浸泡下碳钢的低频阻抗模值分别为30.4Ω×cm2和30.9Ω×cm2,添加了CDs-SSA的碳钢低频阻抗模值为1433.4Ω×cm2和1994.8Ω×cm2,远远高于纯盐酸浸泡下的低频阻抗模值,说明添加的CDs-SSA在钢上形成了致密的吸附膜,抑制了腐蚀反应,展现出优异的缓蚀性能。
本发明未尽事宜为公知技术。
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。
Claims (5)
1.一种具有腐蚀预警和缓蚀双重功能的改性碳点,其特征在于,该改性碳点由氮掺杂碳点和磺基水杨酸反应生成,用于钢铁材料的腐蚀与防护领域。
2.如权利要求1所述的具有腐蚀预警和缓蚀双重功能的改性碳点的制备方法,其特征在于,磺基水杨酸改性碳点包括以下制备步骤:取50 mg氮掺杂碳点(CDs)溶解于50 ~ 100mL四氢呋喃溶剂中,依次加入30 ~ 90 mg N-羟基琥珀酰亚胺(NHS)、100 ~ 200 mg磺基水杨酸(SSA)、88 ~ 160 mg 1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC),搅拌反应24~ 48 h后,将混合物溶液在60 ~ 85 ℃加热6 ~ 12 h,除去四氢呋喃和其他未反应物质,得到磺基水杨酸改性碳点(CDs-SSA)。
3.如权利要求2所述的具有腐蚀预警和缓蚀双重功能的改性碳点的制备方法,其特征在于,NHS与EDC是作为基团活化剂使用,不参与合成反应。
4.如权利要求1所述的具有腐蚀预警和缓蚀双重功能的改性碳点,其特征在于,磺基水杨酸改性碳点对于钢铁材料具备优异的腐蚀感应能力,当处于Fe2+或Fe3+溶液环境中,碳点本身强烈的荧光会被淬灭,使其能够快速、灵敏地检测铁离子,相比于传统碳点只能与Fe3+离子反应实现荧光淬灭,该磺基水杨酸改性碳点的应用范围更广,更加快速、准确地预警钢铁腐蚀。
5.如权利要求1所述的具有腐蚀预警和缓蚀双重功能的改性碳点,其特征在于,所述磺基水杨酸和氮掺杂碳点的表面基团均在钢铁材料表面产生化学吸附;将钢铁试样浸泡在盐酸或硫酸酸性溶液中时,该磺基水杨酸改性碳点稳定吸附在钢基体表面,形成致密的保护膜,抑制基体金属腐蚀,产生良好的缓蚀作用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210910004.8A CN115216290B (zh) | 2022-07-29 | 2022-07-29 | 一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210910004.8A CN115216290B (zh) | 2022-07-29 | 2022-07-29 | 一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115216290A CN115216290A (zh) | 2022-10-21 |
CN115216290B true CN115216290B (zh) | 2024-03-29 |
Family
ID=83615284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210910004.8A Active CN115216290B (zh) | 2022-07-29 | 2022-07-29 | 一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115216290B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107385456A (zh) * | 2017-08-17 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | 环境友好型酸洗缓蚀剂与其应用 |
CN108084990A (zh) * | 2017-12-27 | 2018-05-29 | 华东理工大学 | 一种具有预警功能的无机防腐颜料 |
CN112609184A (zh) * | 2020-11-23 | 2021-04-06 | 西安建筑科技大学 | 一种复合量子点碳钢缓蚀剂、制备方法及应用 |
CN113086970A (zh) * | 2021-04-19 | 2021-07-09 | 中国石油大学(华东) | 一种简单制备耐温耐盐碳点的方法 |
CN113293380A (zh) * | 2021-05-10 | 2021-08-24 | 广州大学 | 一种功能化葡萄糖基碳点缓蚀剂及其制备方法与应用 |
CN113955867A (zh) * | 2021-09-28 | 2022-01-21 | 西安建筑科技大学 | 荧光示踪中药渣功能化碳点缓蚀阻垢剂、制备方法及应用 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140283574A1 (en) * | 2013-03-22 | 2014-09-25 | Battelle Memorial Institute | System and process for formation of extrusion structures |
WO2017214385A1 (en) * | 2016-06-10 | 2017-12-14 | Ecolab USA, Inc. | Compositions and methods for corrosion inhibitor monitoring |
-
2022
- 2022-07-29 CN CN202210910004.8A patent/CN115216290B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107385456A (zh) * | 2017-08-17 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | 环境友好型酸洗缓蚀剂与其应用 |
CN108084990A (zh) * | 2017-12-27 | 2018-05-29 | 华东理工大学 | 一种具有预警功能的无机防腐颜料 |
CN112609184A (zh) * | 2020-11-23 | 2021-04-06 | 西安建筑科技大学 | 一种复合量子点碳钢缓蚀剂、制备方法及应用 |
CN113086970A (zh) * | 2021-04-19 | 2021-07-09 | 中国石油大学(华东) | 一种简单制备耐温耐盐碳点的方法 |
CN113293380A (zh) * | 2021-05-10 | 2021-08-24 | 广州大学 | 一种功能化葡萄糖基碳点缓蚀剂及其制备方法与应用 |
CN113955867A (zh) * | 2021-09-28 | 2022-01-21 | 西安建筑科技大学 | 荧光示踪中药渣功能化碳点缓蚀阻垢剂、制备方法及应用 |
Also Published As
Publication number | Publication date |
---|---|
CN115216290A (zh) | 2022-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Qiang et al. | Enhanced anticorrosion performance of copper by novel N-doped carbon dots | |
Baghayeri et al. | A novel electrochemical sensor based on a glassy carbon electrode modified with dendrimer functionalized magnetic graphene oxide for simultaneous determination of trace Pb (II) and Cd (II) | |
Baig et al. | Diethylenetriamine functionalized graphene oxide as a novel corrosion inhibitor for mild steel in hydrochloric acid solutions | |
Gupta et al. | Functionalized graphene oxide as a new generation corrosion inhibitor for industrial pickling process: DFT and experimental approach | |
Ren et al. | Comparative study on corrosion inhibition of N doped and N, S codoped carbon dots for carbon steel in strong acidic solution | |
Shirazi et al. | A new nanocomposite based on poly (o-anthranilic acid), graphene oxide and functionalized carbon nanotube as an efficient corrosion inhibitor for stainless steel in severe environmental corrosion | |
May | Corrosion behavior of mild steel immersed in different concentrations of NaCl solutions | |
Souza et al. | The role of temperature and H2S (thiosulfate) on the corrosion products of API X65 carbon steel exposed to sweet environment | |
Du et al. | N, N-Dipropynoxy methyl amine trimethyl phosphonate as corrosion inhibitor for iron in sulfuric acid | |
Jin et al. | Enhancement of anticorrosion and antibiofouling performance of self-healing epoxy coating using nano-hydrotalcite materials and bifunctional biocide sodium pyrithione | |
Nejad et al. | A novel nitrogen-and sulfur-grafted reduced graphene oxide doped with zinc cations for corrosion mitigation of mild steel | |
Li et al. | Synthesis of polyamine grafted chitosan copolymer and evaluation of its corrosion inhibition performance | |
CN109692669A (zh) | 一种石墨烯金属离子吸附剂的制备方法 | |
CN110551398B (zh) | 一种具有Fe2+响应特性的金属有机骨架缓蚀剂-水凝胶复合物及其制备方法和应用 | |
Liu et al. | Experimental and molecular simulation studies of N, S-doped Carbon dots as an eco-friendly corrosion inhibitor for protecting Cu in HCl environment | |
Yuan et al. | Corrosion protection of aluminum alloy by epoxy coatings containing polyaniline modified graphene additives | |
Mahross et al. | Experimental and theoretical study on corrosion inhibition of mild steel in oilfield formation water using some Schiff base metal complexes | |
CN115216290B (zh) | 一种具有腐蚀预警和缓蚀双重功能的改性碳点及制备方法 | |
Yang et al. | Amphiphilic carbon dots as high-efficiency corrosion inhibitor for N80 steel in HCl solution: Performance and mechanism investigation | |
Khedr et al. | Corrosion behavior of aluminum in the presence of accelerating metal cations and inhibition | |
Gan et al. | Inhibitive effect of anionic/zwitterionic hybrid surfactants on the self-corrosion of anode for alkaline Al-air battery | |
Atta et al. | Application of eco-friendly magnetite nanoparticles coated with rosin amidoxime as corrosion inhibitor for mild steel in 1 M hydrochloric acid solution | |
Li et al. | Achieving long term anti-corrosion waterborne epoxy coating by attapulgite loaded octadecylamine/graphene nanocomposite | |
Fuchs-Godec et al. | The inhibitive effect of vitamin-C on the corrosive performance of steel in HCl solutions-part II | |
Chen et al. | Effect of Al alloying on corrosion performance of steel |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |