CN113697931A - Self-doped bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system - Google Patents
Self-doped bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system Download PDFInfo
- Publication number
- CN113697931A CN113697931A CN202111042360.4A CN202111042360A CN113697931A CN 113697931 A CN113697931 A CN 113697931A CN 202111042360 A CN202111042360 A CN 202111042360A CN 113697931 A CN113697931 A CN 113697931A
- Authority
- CN
- China
- Prior art keywords
- bisphenol
- solution
- suspension
- solid
- efficiently removing
- 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.)
- Granted
Links
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 20
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 title abstract description 32
- 229910052797 bismuth Inorganic materials 0.000 title abstract description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title abstract description 5
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 title abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 5
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 5
- 230000000873 masking effect Effects 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000004566 IR spectroscopy Methods 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 150000003254 radicals Chemical class 0.000 abstract description 16
- 230000007246 mechanism Effects 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 27
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 238000009303 advanced oxidation process reaction Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 102100032187 Androgen receptor Human genes 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 108010080146 androgen receptors Proteins 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000002124 endocrine Effects 0.000 description 2
- 102000015694 estrogen receptors Human genes 0.000 description 2
- 108010038795 estrogen receptors Proteins 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- FHHJDRFHHWUPDG-UHFFFAOYSA-L peroxysulfate(2-) Chemical compound [O-]OS([O-])(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-L 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 102000004217 thyroid hormone receptors Human genes 0.000 description 2
- 108090000721 thyroid hormone receptors Proteins 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- -1 hydroxyl radicals Chemical class 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 102000005962 receptors Human genes 0.000 description 1
- 108020003175 receptors Proteins 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/31—Chromium, molybdenum or tungsten combined with bismuth
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention provides self-doped bismuth tungstate (Bi)2.15WO6) The method for efficiently removing the bisphenol A by a non-free radical mechanism through a Persulfate (PS) system comprises the following steps: s1: bi to be prepared2.15WO6Placing the solid in water to obtain a suspension, and adjusting the pH of the suspension to be more than 7.0 by using acid or alkali; s2: to Bi2.15WO6Respectively adding PS solution and bisphenol A solution with the same pH value into the suspension and starting to stir at a constant speed; s3: timing is started when the bisphenol A solution is added and the sample is taken for detection at regular timeThe concentration of bisphenol A. The invention states that Bi2.15WO6The method for efficiently removing the bisphenol A through a non-free radical mechanism in the absence of light in the PS system obtains a certain amount of phenolic polymers in the reaction process, and realizes resource utilization while removing the bisphenol A.
Description
Technical Field
The invention belongs to the field of bisphenol A-containing wastewater environmental treatment, and particularly relates to a non-free radical mechanism self-doped bismuth tungstate (Bi)2.15WO6) A method for removing bisphenol A by a Persulfate (PS) system.
Background
Bisphenol A is an important chemical substance and is widely applied to synthesis of materials such as polycarbonate, epoxy resin and the like. Bisphenol a can interact with a variety of biological receptors, such as Estrogen Receptor (ER), Androgen Receptor (AR), Thyroid Hormone Receptor (THR), interfering with human endocrine. In recent years, some countries have also established sewage discharge standards. The emission limits for bisphenol A in Japan and the United states are 2.5mg/L and 0.5mg/L, respectively, with the highest emission limit in China being 1 mg/L. When bisphenol a contaminants enter the aqueous environment, they interfere with human endocrine and have a serious impact on the human reproductive, neurological and immune systems.
Advanced Oxidation Processes (AOPs) are a pollutant treatment technology that has emerged in the 80 s of the 20 th century. The conventional AOPs technology degrades organic pollutants in wastewater by generating strong oxidizing OH to mineralize the organic matters. However, this technique has not been effective in removing refractory organics in the face of these. In recent years, the AOPs technology based on PS has attracted attention from a large number of researchers. PS exhibits high oxidation reactivity towards many organic contaminants. Oxidized SO generated during PS activation under acidic conditions4 ·-And OH exhibits high reactivity to organic contaminants. With hydrogen peroxide (H)2O2) Compared with Peroxymonosulfate (PMS), PS has the advantages of more stable chemical property, lower transportation cost, lower price and the like. But SO4 ·-And OH has low selectivity to pollutants and can cause certain damage to the primary environment.
Bi2.15WO6Widely used as a photocatalyst in the field of photocatalysis, in Bi2.15WO6In the research of photocatalytic oxidation pollutants, various active oxygen species (ROS) such as holes (h +) and superoxide radical (O)2-) And hydroxyl radicals (. OH) as the main oxidizing species. However, Bi2.15WO6The main role in the process of catalytic oxidation of pollutants is to generate radicals with strong oxidizing property, so Bi is used2.15WO6The removal pathway as a catalyst is a free radical mechanism.
In conclusion, Bi2.15WO6the/PS system is efficient and economical in removing pollutants, so that Bi is applied2.15WO6The PS system can efficiently remove the wastewater containing the bisphenol A, and the reaction is carried out through a non-free radical mechanism, and the resource recycling of the oxidation product is a great technical innovation.
Disclosure of Invention
In view of the above, the present invention states Bi2.15WO6The method for efficiently removing the bisphenol A through a non-free radical mechanism in the absence of light in the PS system obtains a certain amount of phenolic polymers in the reaction process, and realizes resource utilization while removing the bisphenol A.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
Bi2.15WO6the method for efficiently removing bisphenol A by a non-free radical mechanism in the absence of light by the aid of the PS system is characterized by comprising the following steps:
in the first step, the prepared Bi2.15WO6The solid is placed in water to give a suspension, which is adjusted to a pH of greater than 7.0 using an acid or base.
And secondly, adding Persulfate (PS) solution and bisphenol A solution with the same pH value into the obtained suspension respectively and starting to stir at a constant speed.
And thirdly, timing when the bisphenol A solution is added, and sampling at regular time to detect the concentration of the bisphenol A.
Further, the solid Bi is prepared by a hydrothermal method2.15WO6。
Further, mixing a bismuth nitrate solution and a sodium tungstate solution in proportion at normal temperature, adjusting the pH to 1.0 by using acid or alkali, uniformly stirring, placing the mixture in an oven to start reaction, cooling, and cleaning, drying and grinding the obtained solid to obtain the solid Bi2.15WO6。
Further, uniformly stirring a bismuth nitrate solution dissolved in a 1M nitric acid solution and a sodium tungstate solution dissolved in a 1M sodium hydroxide solution according to the proportion of Bi to W being 2.15 to 1, placing the mixture in an oven for reaction after the mixture is completely uniform, and cleaning, drying and grinding the obtained solid after cooling to obtain the solid Bi2.15WO6。
Further, reacting the uniformly mixed bismuth nitrate solution and sodium tungstate solution in an oven at 180 ℃ for 24 hours.
Further, in the first step, Bi to be prepared2.15WO6The solid is placed in waterA suspension is obtained, which is adjusted to a pH of more than 7.0 using 1M sodium hydroxide solution or 1M hydrochloric acid solution.
Further, 1M methanol and 20mM chloroform are respectively added into the solution obtained in the second step, the uniform stirring is started, and the time is counted along with the addition of the bisphenol A solution, and the bisphenol A concentration is periodically sampled and detected to carry out the free radical masking experiment.
Further, collecting insoluble solids in the system after reaction, washing with deionized water, drying to obtain insoluble products, and performing FTIR analysis on the insoluble products to obtain the phenolic polymer as the product.
Compared with the prior art, the invention uses the self-doped bismuth tungstate (Bi)2.15WO6) The method for efficiently removing the bisphenol A by the Persulfate (PS) system has the following advantages:
(1) use of Bi2.15WO6In the process of removing the bisphenol A-containing wastewater by the PS system, the bisphenol A is removed by a non-free radical mechanism, so that not only are pollutants removed, but also the phenolic polymer is obtained, the reaction is efficient, and the resource utilization is realized.
(2) Under the condition of being more than neutral, Bi2.15WO6The way of removing bisphenol A by the PS system is a non-free radical mechanism, and is completely different from the free radical way of the traditional AOPs technology.
(3) The common degradation path of bisphenol A-containing wastewater usually uses photocatalytic oxidation or strong oxidizing free radicals for degradation, which increases the cost and destroys the original environment, while Bi2.15WO6The removal of bisphenol A by the PS system does not need an additional light source and does not generate a large amount of free radicals, thereby reducing the cost of wastewater treatment.
(4) The insoluble phenolic polymer is obtained in the process of removing the pollutants, the polymer can be obtained while the bisphenol A is removed, the resource treatment of the bisphenol A wastewater is realized, and a new thought is provided for efficiently removing the bisphenol A pollutants at low cost.
Drawings
FIG. 1 shows Bi obtained in example 12.15WO6XRD pattern of (a);
FIG. 2 is a schematic view of an embodimentBi of examples 1 and 22.15WO6Degradation diagram of bisphenol A by PS system;
FIG. 3 shows Bi of example 12.15WO6Radical masking experimental plot for the/PS system;
FIG. 4 is an FTIR chart of insoluble matter after reaction obtained in example 1.
Detailed Description
1. Preparation of Bi2.15WO6The process is as follows:
uniformly stirring a bismuth nitrate solution dissolved in a 1M nitric acid solution and a sodium tungstate solution dissolved in a 1M sodium hydroxide solution according to the proportion of Bi to W being 2.15 to 1, putting the mixture into an oven to react for 24 hours at 180 ℃ in the oven after the mixture is completely uniform, and cleaning, drying and grinding the obtained solid after cooling to obtain the solid Bi2.15WO6After being ground into uniform powder using an agate mortar, the powder was put into a dry box for standby, and XRD analysis was performed on the prepared sample, and the results are shown in fig. 1.
2.Bi2.15WO6Experiment for removing bisphenol A by PS system
Weighing a certain amount of Bi2.15WO6The suspension was placed in a 100mL beaker containing a quantity of deionized water and adjusted to greater than 7.0 using 1M sodium hydroxide solution or hydrochloric acid solution. Then, a certain volume of PS and bisphenol A solution with the same pH value is added into the suspension liquid in sequence, and the suspension liquid is placed in a stirrer to be mixed uniformly. The timing is started at the same time of adding the bisphenol A solution, and the sampling is timed.
The bisphenol A concentration was measured by high performance liquid chromatography.
(1) Determination reagent:
bisphenol a standard stock solution: 100mg of bisphenol A was completely dissolved in a 1L volumetric flask.
(2) Drawing a standard curve: taking 5 bisphenol A (5, 10, 20, 25, 40mg L) with different concentrations-1) The detection was carried out at a wavelength of 276nm in a mobile phase of a mixed solution (50: 50) of acetonitrile and water.
(3) And (3) determination of a water sample: taking a small amount of reaction liquid at a certain time, filtering out clear liquid by a filter for testing, and calculating the content of bisphenol A in the solution according to a standard curve.
Under alkaline condition Bi2.15WO6The removal efficiency of the/PS system for bisphenol A is shown in FIG. 2.
(3) Radical masking experiments
Weighing a certain amount of Bi2.15WO6Placed in a 100mL beaker containing a quantity of deionized water and the suspension adjusted to greater than 7.0 using 1M sodium hydroxide solution. Then, a certain volume of PS and bisphenol A solutions with the same pH value are sequentially added into the suspension, 1M methanol and 20mM chloroform are respectively added into the system to be uniformly mixed, and the mixture is placed in a stirrer to be uniformly mixed. The timing is started at the same time of adding the bisphenol A solution, and the sampling is timed.
Under alkaline condition Bi2.15WO6the/PS system radical masking experiment chart is shown in FIG. 3.
(4) Characterization of post-reaction insolubles
Insoluble solid in the system after reaction is collected, washed by deionized water and dried to obtain insoluble product, FTIR analysis is carried out on the insoluble product, and the analysis result is shown in figure 4.
Claims (7)
1.Bi2.15WO6The method for removing the bisphenol A by the PS system is characterized by comprising the following steps:
(1) bi to be prepared2.15WO6Placing in water to obtain suspension, and adjusting pH to more than 7.0 with alkali; and starting stirring the PS solution and the bisphenol A solution with the same pH value at a constant speed.
(2) And timing when the bisphenol A solution is added and sampling at regular time to detect the concentration of the bisphenol A.
2. The Bi according to claim 12.15WO6The method for removing the bisphenol A by the PS system is characterized in that: preparation of the solid Bi Using a hydrothermal method2.15WO6。
3. The Bi according to claim 12.15WO6The method for removing the bisphenol A by the PS system is characterized in that: using bismuth nitrate solution and sodium tungstateMixing the solutions at normal temperature in proportion, adjusting pH to 1.0 with acid or alkali, stirring, placing in an oven for reaction at 180 deg.C for 24h, cooling, and collecting the obtained solid to obtain solid Bi2.15WO6。
4. The Bi according to claim 32.15WO6The method for removing the bisphenol A by the PS system is characterized in that: mixing uniformly in the ratio of Bi to W being 2.15 to 1.
5. The Bi according to claim 12.15WO6The method for removing the bisphenol A by the PS system is characterized in that: in the step (1), the prepared Bi2.15WO6The suspension was placed in water and its pH adjusted to greater than 7.0 with 1M sodium hydroxide solution.
6. The Bi according to claim 12.15WO6The method for removing the bisphenol A by the PS system is characterized in that: in the step (1), 1M methanol and 20mM chloroform are respectively added, timing is started when the bisphenol A solution is added, sampling and detection are carried out at regular time, and a masking experiment is carried out.
7. The Bi according to claim 12.15WO6The method for removing the bisphenol A by the PS system is characterized in that: infrared spectroscopy (FTIR) analysis of the insoluble solids in the system gave the product as a phenolic polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042360.4A CN113697931B (en) | 2021-09-07 | 2021-09-07 | Self-doping bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042360.4A CN113697931B (en) | 2021-09-07 | 2021-09-07 | Self-doping bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113697931A true CN113697931A (en) | 2021-11-26 |
| CN113697931B CN113697931B (en) | 2024-05-10 |
Family
ID=78660718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111042360.4A Active CN113697931B (en) | 2021-09-07 | 2021-09-07 | Self-doping bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113697931B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126835A (en) * | 2018-07-26 | 2019-01-04 | 中国电建集团成都勘测设计研究院有限公司 | Photochemical catalyst La3+The method of/BiOI and bisphenol AF of degrading |
| CN112062258A (en) * | 2020-09-16 | 2020-12-11 | 天津理工大学 | Method for degrading aniline by using copper oxide persulfate system without free radical mechanism |
-
2021
- 2021-09-07 CN CN202111042360.4A patent/CN113697931B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126835A (en) * | 2018-07-26 | 2019-01-04 | 中国电建集团成都勘测设计研究院有限公司 | Photochemical catalyst La3+The method of/BiOI and bisphenol AF of degrading |
| CN112062258A (en) * | 2020-09-16 | 2020-12-11 | 天津理工大学 | Method for degrading aniline by using copper oxide persulfate system without free radical mechanism |
Non-Patent Citations (4)
| Title |
|---|
| LIU TY, ET AL: "Oxidative polymerization of bisphenol A (BPA) via H-abstraction by Bi2.15WO6 and persulfate: Importance of the surface complexes", CHEMICAL ENGINEERING JOURNAL, vol. 435, 28 February 2022 (2022-02-28), pages 134816 * |
| WANG CONG, WT AL: "Catalytic reactivity of Co3O4 with different facets in the hydrogen abstraction of phenol by persulfate", APPLIED CATALYSIS B-ENVIRONMENTAL, vol. 270, 30 April 2020 (2020-04-30), pages 118819 * |
| WEI, Y ET AL: "Efficient peroxodisulfate activation by iodine vacancy rich bismuth oxyiodide: A vacancy induced mechanism", CHEMICAL ENGINEERING JOURNAL, 1 November 2019 (2019-11-01), pages 121971 * |
| 王正昊: "非自由基路线活化过硫酸盐的研究现状", 广州化工, vol. 47, no. 17, 30 September 2019 (2019-09-30), pages 40 - 43 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113697931B (en) | 2024-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Abdollahi et al. | Photodegradation of m-cresol by zinc oxide under visible-light irradiation | |
| CN102161526B (en) | Application of magnesium oxide-loaded ferrocobalt metal magnetic nanometer material on degrading orange colour II in wastewater | |
| CN108585163B (en) | Method for degrading organic matters by catalyzing monopersulfate to generate sulfate radicals | |
| CN112337490B (en) | Mn-FeOCl material preparation and application method for catalytic degradation of malachite green in water | |
| Selli et al. | Role of humic acids in the TiO2-photocatalyzed degradation of tetrachloroethene in water | |
| CN103663609A (en) | Method for treating high-COD (chemical oxygen demand) organic wastewater through microwave catalytic oxidation | |
| CN110918099A (en) | Method for treating hexavalent chromium-containing wastewater through photocatalytic reduction of nickel oxide-nickel cobaltate-black titanium dioxide composite | |
| CN113697931B (en) | Self-doping bismuth tungstate (Bi)2.15WO6) Method for efficiently removing bisphenol A by Persulfate (PS) system | |
| CN111359676B (en) | MOF-based composite material and preparation method and application thereof | |
| CN100417441C (en) | Collagenous fibers carried iron catalyst, prepn. method and use thereof | |
| CN112973739A (en) | Composite catalyst for catalytic oxidation treatment of antibiotic wastewater | |
| CN111777160A (en) | Method for auxiliary treatment of gold dressing and smelting wastewater through photocatalytic oxidation | |
| CN113663737B (en) | CMC-Fe-based microsphere, and preparation method and application thereof | |
| CN109894123A (en) | A kind of preparation method and application of supported bismuth tungstate photocatalyst | |
| CN110092438A (en) | A kind of method of electrolytic manganese residues as photocatalyst treatment organic wastewater | |
| CN112062258A (en) | Method for degrading aniline by using copper oxide persulfate system without free radical mechanism | |
| CN114524503A (en) | Method for treating printing and dyeing wastewater through ozone catalytic oxidation by using iron-manganese/biochar | |
| CN108328655A (en) | A kind of hydroxyl bismuth subnitrate and preparation method thereof and purposes with photocatalyst | |
| CN113998798A (en) | Method for degrading antibiotic wastewater by catalyzing peroxymonosulfate to oxidize | |
| Chávez et al. | One-pot synthesis and immobilization of urea-derived graphitic carbon nitride onto ceramic foams for visible-light photocatalytic wet peroxide oxidation in water treatment | |
| CN114272916A (en) | High-catalytic-activity mullite material, and preparation method and application thereof | |
| CN113003699A (en) | WS2Promoting catalysis of Fe2+Method and reagent combination for treating wastewater by activating persulfate | |
| CN110227463A (en) | A kind of novel fenton catalyst and preparation method thereof for degradable organic pollutant waste water | |
| CN115148389B (en) | Photocatalysis uranium removal method without catalyst | |
| CN114620869B (en) | Ultraviolet catalytic oxidation wastewater treatment system and method |
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 |