{"title":"掺铁BiOCl光催化材料的制备及其光催化降解。","authors":"Longqiang He, Xiaohua Wang* and Dapeng Hong, ","doi":"10.1021/acs.langmuir.5c02184","DOIUrl":null,"url":null,"abstract":"<p >Fe-doped BiOCl (Fe-BiOCl) hierarchical microspheres were successfully prepared by using a simple one-step solvothermal approach. The Fe-BiOCl hierarchical microspheres were analyzed by XRD, IR, SEM, XPS, TEM, etc. The analyses confirmed that impurity levels were successfully introduced into the band gap of BiOCl through Fe doping, leading to a decrease in the band gap and an expansion of the light absorption range to the visible region. Moreover, the separation and transfer of photogenerated carriers were more effectively promoted by Fe doping, resulting in a substantially elevated photocatalytic performance of BiOCl. After 40 min of dark adsorption and 60 min of photocatalysis, the removal efficiency of the prepared Fe-BiOCl-3 for methylene blue reached 93.5%, and the degradation reaction was accorded with a first-order kinetic law. After 5 cycles of photodegradation, Fe-BiOCl-3 still maintained its high photocatalytic ability, indicating that it had a certain degree of reusability. The active species capture experiment demonstrated that <sup>•</sup>O<sub>2</sub><sup>–</sup> and <sup>•</sup>OH played a predominant role during the photocatalytic degradation process. Combined with the active species capture experiment, the photocatalytic degradation mechanism of Fe-BiOCl-3 was put forward.</p>","PeriodicalId":50,"journal":{"name":"Langmuir","volume":"41 32","pages":"21471–21482"},"PeriodicalIF":3.9000,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and Photocatalytic Degradation of Fe-Doped BiOCl Photocatalytic Materials\",\"authors\":\"Longqiang He, Xiaohua Wang* and Dapeng Hong, \",\"doi\":\"10.1021/acs.langmuir.5c02184\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Fe-doped BiOCl (Fe-BiOCl) hierarchical microspheres were successfully prepared by using a simple one-step solvothermal approach. The Fe-BiOCl hierarchical microspheres were analyzed by XRD, IR, SEM, XPS, TEM, etc. The analyses confirmed that impurity levels were successfully introduced into the band gap of BiOCl through Fe doping, leading to a decrease in the band gap and an expansion of the light absorption range to the visible region. Moreover, the separation and transfer of photogenerated carriers were more effectively promoted by Fe doping, resulting in a substantially elevated photocatalytic performance of BiOCl. After 40 min of dark adsorption and 60 min of photocatalysis, the removal efficiency of the prepared Fe-BiOCl-3 for methylene blue reached 93.5%, and the degradation reaction was accorded with a first-order kinetic law. After 5 cycles of photodegradation, Fe-BiOCl-3 still maintained its high photocatalytic ability, indicating that it had a certain degree of reusability. The active species capture experiment demonstrated that <sup>•</sup>O<sub>2</sub><sup>–</sup> and <sup>•</sup>OH played a predominant role during the photocatalytic degradation process. Combined with the active species capture experiment, the photocatalytic degradation mechanism of Fe-BiOCl-3 was put forward.</p>\",\"PeriodicalId\":50,\"journal\":{\"name\":\"Langmuir\",\"volume\":\"41 32\",\"pages\":\"21471–21482\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Langmuir\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.langmuir.5c02184\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Langmuir","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.langmuir.5c02184","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Preparation and Photocatalytic Degradation of Fe-Doped BiOCl Photocatalytic Materials
Fe-doped BiOCl (Fe-BiOCl) hierarchical microspheres were successfully prepared by using a simple one-step solvothermal approach. The Fe-BiOCl hierarchical microspheres were analyzed by XRD, IR, SEM, XPS, TEM, etc. The analyses confirmed that impurity levels were successfully introduced into the band gap of BiOCl through Fe doping, leading to a decrease in the band gap and an expansion of the light absorption range to the visible region. Moreover, the separation and transfer of photogenerated carriers were more effectively promoted by Fe doping, resulting in a substantially elevated photocatalytic performance of BiOCl. After 40 min of dark adsorption and 60 min of photocatalysis, the removal efficiency of the prepared Fe-BiOCl-3 for methylene blue reached 93.5%, and the degradation reaction was accorded with a first-order kinetic law. After 5 cycles of photodegradation, Fe-BiOCl-3 still maintained its high photocatalytic ability, indicating that it had a certain degree of reusability. The active species capture experiment demonstrated that •O2– and •OH played a predominant role during the photocatalytic degradation process. Combined with the active species capture experiment, the photocatalytic degradation mechanism of Fe-BiOCl-3 was put forward.
期刊介绍:
Langmuir is an interdisciplinary journal publishing articles in the following subject categories:
Colloids: surfactants and self-assembly, dispersions, emulsions, foams
Interfaces: adsorption, reactions, films, forces
Biological Interfaces: biocolloids, biomolecular and biomimetic materials
Materials: nano- and mesostructured materials, polymers, gels, liquid crystals
Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry
Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals
However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do?
Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*.
This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).