CN109759122A - A kind of bismuth oxybromide ternary heterostructure photocatalyst and preparation method and application thereof - Google Patents
A kind of bismuth oxybromide ternary heterostructure photocatalyst and preparation method and application thereof Download PDFInfo
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- CN109759122A CN109759122A CN201910206821.3A CN201910206821A CN109759122A CN 109759122 A CN109759122 A CN 109759122A CN 201910206821 A CN201910206821 A CN 201910206821A CN 109759122 A CN109759122 A CN 109759122A
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- OZKCXDPUSFUPRJ-UHFFFAOYSA-N oxobismuth;hydrobromide Chemical compound Br.[Bi]=O OZKCXDPUSFUPRJ-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims abstract description 16
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 8
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims abstract description 4
- FBXVOTBTGXARNA-UHFFFAOYSA-N bismuth;trinitrate;pentahydrate Chemical compound O.O.O.O.O.[Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FBXVOTBTGXARNA-UHFFFAOYSA-N 0.000 claims abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 230000000593 degrading effect Effects 0.000 claims 1
- 230000031700 light absorption Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000006798 recombination Effects 0.000 abstract description 5
- 238000005215 recombination Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001699 photocatalysis Effects 0.000 abstract description 4
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 229910052794 bromium Inorganic materials 0.000 abstract description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 abstract 1
- OLBRKKJBIBPJSE-UHFFFAOYSA-N bismuth;bromo hypobromite Chemical class [Bi].BrOBr OLBRKKJBIBPJSE-UHFFFAOYSA-N 0.000 abstract 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000004729 solvothermal method Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229940043267 rhodamine b Drugs 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 238000004847 absorption spectroscopy Methods 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- BDJYZEWQEALFKK-UHFFFAOYSA-N bismuth;hydrate Chemical compound O.[Bi] BDJYZEWQEALFKK-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002060 nanoflake Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QXXKGIVXMAGBDV-UHFFFAOYSA-N [Pb].[Cl].[F] Chemical compound [Pb].[Cl].[F] QXXKGIVXMAGBDV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 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 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明公开一种溴氧化铋三元异质结构光催化剂的制备方法。以五水合硝酸铋、溴化钾、石墨相氮化碳和硝酸银为原料，将制得的石墨相氮化碳和溴化银与溴氧化铋复合实现改性，通过一步溶剂热法制得溴氧化铋三元异质结构光催化剂。本发明制备的改性溴氧化铋比较纯的溴氧化铋具有更小的禁带宽度及更高的可见光光吸收效果。更小的禁带宽度降低了光生电子空穴的传输距离，提高了光生电子空穴的分离效率，降低了复合率，更高的光吸收效果提高了光子利用率，提高了电子空穴对产生率，极大地改善了在可见光下的光催化活性。该方法具有成本低和方便操作的优点。利用它可在可见光下降解有机污染物，在环境净化中具有重要的实用价值。
The invention discloses a preparation method of a bismuth oxybromide ternary heterostructure photocatalyst. Using bismuth nitrate pentahydrate, potassium bromide, graphite phase carbon nitride and silver nitrate as raw materials, the prepared graphite phase carbon nitride and silver bromide are compounded with bismuth oxybromide to realize modification, and bromine is prepared by one-step solvothermal method. Bismuth oxide ternary heterostructure photocatalyst. Compared with pure bismuth oxybromide, the modified bismuth oxybromide prepared by the invention has smaller forbidden band width and higher visible light absorption effect. The smaller band gap reduces the transmission distance of photo-generated electron holes, improves the separation efficiency of photo-generated electron holes, reduces the recombination rate, and the higher light absorption effect improves the photon utilization rate and the generation of electron-hole pairs. , greatly improving the photocatalytic activity under visible light. This method has the advantages of low cost and convenient operation. It can degrade organic pollutants under visible light, and has important practical value in environmental purification.
Description
Technical field
The invention belongs to catalysis material technical fields, and in particular to a kind of bismuth oxybromide ternary heterojunction structure photochemical catalyst
And its preparation method and application.
Background technique
Photocatalysis technology can be with effective solution energy and environmental problem, by increasingly extensive concern.Catalysis material
Sunlight hydrolytic hydrogen production can be utilized, can rely life with the waste of decomposing harmful substances and production and living generation, the solution mankind
The energy and environment problem deposited.Currently, the electron-hole pair recombination rate generated after the irradiation of photochemical catalyst light is big, photon is utilized
Low efficiency, photocatalytic activity be not high.Therefore research be modified to semiconductor light-catalyst be necessary, modified purpose and
Effect includes inhibiting electron hole pair compound to improve quantum efficiency, improves photochemical catalyst specific surface area.
Bismuth oxybromide photocatalyst (BiOBr) is a kind of nonmetallic P-type semiconductor, is made of Bi, O and Br element, due to
It is widely paid close attention to good chemical stability, thermal stability and optical characteristics by people, and forbidden bandwidth is
2.7eV can be absorbed the visible light that wavelength is less than 600nm, illustrate the great potential of non-metal optical catalyst degradation pollutant.
BiOBr is a kind of important ternary bismuth based semiconductor compound, is chlorine fluorine lead ore type, belongs to tetragonal crystal system.With unique electricity
Minor structure, excellent visible light absorption capacity, higher stability, preparation cost are lower and to the good drop of organic pollutant
Solution ability.Pure BiOBr photochemical catalyst is since weakly visible light absorption responds, high charge recombination, small specific surface area, photoproduction electricity
Son-hole is easily compound, limited so as to cause its photo-catalysis capability is made, thus needs to be modified it.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods to be simple and convenient to operate, at low cost, mild condition, catalytic efficiency
The preparation method of high ternary heterojunction structure bismuth oxybromide photocatalyst.The technical solution adopted by the present invention is that: a kind of bromine oxidation
Bismuth ternary heterojunction structure photochemical catalyst, preparation method the following steps are included:
1) g-C3N4 powder is added in potassium bromide after stirring and dissolving to stir evenly in ethylene glycol, obtains solution A；
2) by five nitric hydrate bismuths, heating stirring dissolves in ethylene glycol, and it is super that silver nitrate is added after solution is cooled to room temperature
Sound dissolution, obtains solution B；
3) solution A is added dropwise in solution B and stirs 1-2h and be placed in high pressure water heating kettle, high pressure water heating kettle is placed in
Heating is reacted in baking oven, and high pressure water heating kettle is down to room temperature after reaction, and the drying in baking oven after centrifuge washing obtains mesh
Mark product.
A kind of above-mentioned bismuth oxybromide ternary heterojunction structure photochemical catalyst, in step 2), the heating temperature is 70-
100℃。
A kind of above-mentioned bismuth oxybromide ternary heterojunction structure photochemical catalyst, in molar ratio, potassium bromide: five nitric hydrate bismuths:
Silver nitrate: graphite phase carbon nitride=1:0.8:0.08:0.04.
A kind of above-mentioned bismuth oxybromide ternary heterojunction structure photochemical catalyst, in step 3), the heating temperature is 100-
120 DEG C, heating time 10-16h.
The application in degradable organic pollutant under visible light of bismuth oxybromide ternary heterojunction structure photochemical catalyst.
In the waste water of Yu Hanyou organic pollutant, above-mentioned bismuth oxybromide ternary heterojunction structure light is added in above-mentioned application
Catalyst, degrade 1-2h under visible light.
Above-mentioned application, the organic pollutant are Luo Ming pellet B.
The beneficial effects of the present invention are:
The present invention is prepared for BiOBr, g-C by step solvent-thermal method modification3N4The ternary heterojunction structure light compound with AgBr
Catalyst, the BiOBr of acquisition possess lower forbidden bandwidth and the response of higher visible absorption.Lower forbidden bandwidth reduces
The transmission range of photo-generate electron-hole, improves the separative efficiency of photo-generate electron-hole, reduces recombination rate, higher visible
Light absorption response improves photon utilization rate, improves electron hole creation rate, significantly improves light under visible light
Catalytic activity.Catalyst stability prepared by the method for the present invention is good, and chemical property is stablized, and may be reused.It can be seen that
The pure g-C of the speed ratio of rhodamine B degradation under light3N4It is 3.5 times high.
Detailed description of the invention
Fig. 1 is the XRD diagram of pure BiOBr catalyst prepared by embodiment 1.
Fig. 2 is the SEM figure of pure BiOBr catalyst prepared by embodiment 1.
Fig. 3 is the XRD diagram of ternary heterojunction structure BiOBr catalyst prepared by embodiment 2.
Fig. 4 is the SEM figure of ternary heterojunction structure BiOBr catalyst prepared by embodiment 2.
Fig. 5 is the ultraviolet-visible absorption spectroscopy comparison diagram of pure BiOBr catalyst and ternary heterojunction structure BiOBr catalyst.
Fig. 6 is the band gap comparison diagram of pure BiOBr catalyst and ternary heterojunction structure BiOBr catalyst.
Fig. 7 is the degradation rate pair of pure BiOBr and ternary heterojunction structure BiOBr catalyst in photocatalytic degradation rhodamine B
Than figure.
Specific embodiment
The pure BiOBr photochemical catalyst of embodiment 1
(1) preparation method
It measures five nitric hydrate bismuth heating stirring of 1.94g to be dissolved in 20 milliliters of ethylene glycol, be cooled to room temperature.It measures
0.595g potassium bromide stirring and dissolving is in 20 milliliters of ethylene glycol.Bismuth nitrate solution is added dropwise in ethylene glycol dissolved with potassium bromide
12h is kept in 120 DEG C of high pressure water heating kettles after middle stirring 1h.Deionized water and ethyl alcohol are used after high pressure water heating kettle is cooled to room temperature
Centrifuge washing is dry, obtains pure BiOBr photochemical catalyst.
(2) it detects
Fig. 1 is that the XRD of pure BiOBr photochemical catalyst sample is detected.As seen from Figure 1, not there are no other miscellaneous peaks, illustrate product
In be not present other impurities phase, what is obtained is single object phase.As can be seen from the figure sample has preferable crystallinity.Fig. 2
It is detected for the SEM of pure BiOBr photochemical catalyst sample.From Figure 2 it can be seen that pure BiOBr shows typical chondritic, individually
The diameter of ball is at 2-3 μm.
2 ternary heterojunction structure BiOBr photochemical catalyst of embodiment
1) stirring and dissolving, then addition 0.0184g g-C3N4 stirring in 20mL ethylene glycol by 0.595g potassium bromide
30min obtains solution A.
2) it is cooled to room temperature after dissolving by heating five nitric hydrate bismuth of 1.94g in 20mL ethylene glycol, is then added
0.068g silver nitrate stirring and dissolving, obtains solution B.
3) solution A is added dropwise in solution B and stirs 1-2h and be placed in high pressure water heating kettle, high pressure water heating kettle is placed in
12h is kept in 120 DEG C of baking ovens, uses deionized water and ethyl alcohol centrifuge washing after reaction, drying obtains ternary heterojunction structure
BiOBr。
(2) it detects
Fig. 3 is that the XRD of ternary heterojunction structure BiOBr catalyst sample is detected.Sample has good crystallization as seen from Figure 3
Degree, sample as shown in the figure respectively correspond and (200) and (220) of AgBr crystalline substance in 31.1 degree and 44.5 degree appearance, two diffraction maximums
Face.Since pure BiOBr is similar with the XRD characteristic peak of ternary heterojunction structure BiOBr, illustrate to be prepared with compound g-C3N4 and AgBr
Do not have to influence the formation of BiOBr microballoon during BiOBr.
Fig. 4 is that the SEM of ternary heterojunction structure BiOBr catalyst sample is detected.From fig. 4, it can be seen that the micro-sphere structure of sample by
A large amount of nano flakes are intensive to be packed together, these nano flake edges are irregular, and width is about 50-100nm.
Fig. 5 is the ultraviolet-visible absorption spectroscopy comparison diagram of pure BiOBr and ternary heterojunction structure BiOBr sample.It can by Fig. 5
See that ternary heterojunction structure BiOBr photochemical catalyst is apparently higher than pure BiOBr in the assimilation effect of 450-600nm visible light wave range and urges
Agent greatly improves the efficiency of light energy utilization.
Fig. 6 is pure BiOBr and the band gap spectrogram detection of ternary heterojunction structure BiOBr sample.Ternary is heterogeneous as seen from Figure 6
The band gap of structure BiOBr photochemical catalyst is significantly lower than pure BiOBr catalyst, and small forbidden bandwidth reduces photo-generate electron-hole
Transmission range, improve the separative efficiency of photo-generate electron-hole, reduce recombination rate.
The application of 3 ternary heterojunction structure BiOBr photochemical catalyst of embodiment
Ternary heterojunction structure BiOBr photochemical catalyst prepared by embodiment 1, embodiment 2 carries out photocatalyst material performance
Test.Method is as follows: pure BiOBr and each 0.01g of ternary heterojunction structure BiOBr being put in 100ml glass beaker respectively, respectively
The 2g/ml rhodamine b solution of 50ml is added, stirs 1h in darkroom.Using 300W xenon lamp as light source, photoelectric current is adjusted to 20mA
It sets, glass beaker is placed in immediately below xenon source, extract and open Xenon light shining after first time sample immediately, after 10min, extract
Second of sample will carry out visible absorption test, more each absorption peak face by sample each time every the sample of extraction in 10 minutes
Product.As a result as shown in fig. 7, after illumination 1h, rhodamine b is degraded 30% by pure BiOBr catalyst, and ternary heterojunction structure
Rhodamine b is degraded 95% or so by BiOBr, embodies ternary heterojunction structure BiOBr with higher catalytic capability.
Claims (7)
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| CN111036243A (en) * | 2019-12-31 | 2020-04-21 | 福州大学 | Oxygen vacancy-containing transition metal doped BiOBr nanosheet photocatalyst, preparation method and application thereof |
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| CN114405531A (en) * | 2022-03-07 | 2022-04-29 | 广西民族大学 | A Z-type heterojunction photocatalytic nanomaterial with synergistic effect of crystal planes and its preparation method and application |
| CN115957787A (en) * | 2022-11-23 | 2023-04-14 | 浙江大学 | Preparation method of layered ternary composite photocatalytic material |
| CN116832841A (en) * | 2023-05-31 | 2023-10-03 | 广州大学 | A bismuth oxybromide photocatalyst modified with partially graphitized carbon on the surface and its synthesis method and application |
| CN117138806A (en) * | 2023-08-29 | 2023-12-01 | 福州大学 | Magnetic ternary photocatalyst and preparation method and application thereof |
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| CN111036243A (en) * | 2019-12-31 | 2020-04-21 | 福州大学 | Oxygen vacancy-containing transition metal doped BiOBr nanosheet photocatalyst, preparation method and application thereof |
| CN111036243B (en) * | 2019-12-31 | 2021-08-31 | 福州大学 | Oxygen vacancy-containing transition metal doped BiOBr nanosheet photocatalyst, preparation method and application thereof |
| CN112850649A (en) * | 2020-12-29 | 2021-05-28 | 杭州电子科技大学 | Preparation method of bismuth oxybromide nanosheet |
| CN112850649B (en) * | 2020-12-29 | 2022-03-25 | 杭州电子科技大学 | Preparation method of bismuth oxybromide nanosheet |
| CN114405531A (en) * | 2022-03-07 | 2022-04-29 | 广西民族大学 | A Z-type heterojunction photocatalytic nanomaterial with synergistic effect of crystal planes and its preparation method and application |
| CN114405531B (en) * | 2022-03-07 | 2022-12-13 | 广西民族大学 | Z-type heterojunction photocatalytic nano material with crystal face synergistic effect and preparation method and application thereof |
| CN115957787A (en) * | 2022-11-23 | 2023-04-14 | 浙江大学 | Preparation method of layered ternary composite photocatalytic material |
| CN116832841A (en) * | 2023-05-31 | 2023-10-03 | 广州大学 | A bismuth oxybromide photocatalyst modified with partially graphitized carbon on the surface and its synthesis method and application |
| CN117138806A (en) * | 2023-08-29 | 2023-12-01 | 福州大学 | Magnetic ternary photocatalyst and preparation method and application thereof |
| CN117138806B (en) * | 2023-08-29 | 2025-04-18 | 福州大学 | A magnetic ternary photocatalyst and its preparation method and application |
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