{"title":"利用新型 Ni0.95Cu0.03M0.02O（M = Co、Mo）半导体提高物理、介电和太阳能光催化效率","authors":"Imen Massoudi, Ahmed Rebey","doi":"10.1007/s10853-024-10311-5","DOIUrl":null,"url":null,"abstract":"<div><p>Cu/Mo codoped NiO semiconductors exhibited a visible light efficient photo-removal performance for diclofenac sodium and methylene blue waste. A simple and low-cost methodology was used to synthesize NiO, Ni<sub>0.95</sub>Cu<sub>0.03</sub>Co<sub>0.02</sub>O, and Ni<sub>0.95</sub>Cu<sub>0.03</sub>Mo<sub>0.02</sub>O nanocatalysts. The crystal structure verified the formation of a cubic NiO single phase. The scanning electron microscopy (SEM) micrographs of all samples have shown a homogenous spherical particle distribution. The harvesting of visible light from NiO semiconductors was significantly enhanced after the addition of Cu/Co and Cu/Mo ions. The X-ray photoelectron spectra confirmed that Cu dopant has a +2-oxidation state while Mo dopant has +3 and +4 as mixed oxidation states. Ni<sub>0.95</sub>Cu<sub>0.03</sub>Co<sub>0.02</sub>O and Ni<sub>0.95</sub>Cu<sub>0.03</sub>Mo<sub>0.02</sub>O have shown high dielectric constant values at low frequencies. For purification of wastewater, the visible light photocatalytic efficiencies of Cu/Mo codoped NiO catalyst for the removal of 20 mg/L methylene blue (MB) and 20 mg/L diclofenac sodium (DS) were 98 and 95% after 50 min, respectively. The MB and DS molecules were converted to CO<sub>2</sub> and H<sub>2</sub>O as confirmed by total organic carbon and chemical oxygen demand analyses. Besides, this nanocatalyst showed a high reusability for MB and DS pollutants until four cycles.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 40","pages":"19192 - 19209"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Advancing physical, dielectric, and solar photocatalytic efficiency with novel Ni0.95Cu0.03M0.02O (M = Co, Mo) semiconductors\",\"authors\":\"Imen Massoudi, Ahmed Rebey\",\"doi\":\"10.1007/s10853-024-10311-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Cu/Mo codoped NiO semiconductors exhibited a visible light efficient photo-removal performance for diclofenac sodium and methylene blue waste. A simple and low-cost methodology was used to synthesize NiO, Ni<sub>0.95</sub>Cu<sub>0.03</sub>Co<sub>0.02</sub>O, and Ni<sub>0.95</sub>Cu<sub>0.03</sub>Mo<sub>0.02</sub>O nanocatalysts. The crystal structure verified the formation of a cubic NiO single phase. The scanning electron microscopy (SEM) micrographs of all samples have shown a homogenous spherical particle distribution. The harvesting of visible light from NiO semiconductors was significantly enhanced after the addition of Cu/Co and Cu/Mo ions. The X-ray photoelectron spectra confirmed that Cu dopant has a +2-oxidation state while Mo dopant has +3 and +4 as mixed oxidation states. Ni<sub>0.95</sub>Cu<sub>0.03</sub>Co<sub>0.02</sub>O and Ni<sub>0.95</sub>Cu<sub>0.03</sub>Mo<sub>0.02</sub>O have shown high dielectric constant values at low frequencies. For purification of wastewater, the visible light photocatalytic efficiencies of Cu/Mo codoped NiO catalyst for the removal of 20 mg/L methylene blue (MB) and 20 mg/L diclofenac sodium (DS) were 98 and 95% after 50 min, respectively. The MB and DS molecules were converted to CO<sub>2</sub> and H<sub>2</sub>O as confirmed by total organic carbon and chemical oxygen demand analyses. Besides, this nanocatalyst showed a high reusability for MB and DS pollutants until four cycles.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":645,\"journal\":{\"name\":\"Journal of Materials Science\",\"volume\":\"59 40\",\"pages\":\"19192 - 19209\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10853-024-10311-5\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10853-024-10311-5","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Advancing physical, dielectric, and solar photocatalytic efficiency with novel Ni0.95Cu0.03M0.02O (M = Co, Mo) semiconductors
Cu/Mo codoped NiO semiconductors exhibited a visible light efficient photo-removal performance for diclofenac sodium and methylene blue waste. A simple and low-cost methodology was used to synthesize NiO, Ni0.95Cu0.03Co0.02O, and Ni0.95Cu0.03Mo0.02O nanocatalysts. The crystal structure verified the formation of a cubic NiO single phase. The scanning electron microscopy (SEM) micrographs of all samples have shown a homogenous spherical particle distribution. The harvesting of visible light from NiO semiconductors was significantly enhanced after the addition of Cu/Co and Cu/Mo ions. The X-ray photoelectron spectra confirmed that Cu dopant has a +2-oxidation state while Mo dopant has +3 and +4 as mixed oxidation states. Ni0.95Cu0.03Co0.02O and Ni0.95Cu0.03Mo0.02O have shown high dielectric constant values at low frequencies. For purification of wastewater, the visible light photocatalytic efficiencies of Cu/Mo codoped NiO catalyst for the removal of 20 mg/L methylene blue (MB) and 20 mg/L diclofenac sodium (DS) were 98 and 95% after 50 min, respectively. The MB and DS molecules were converted to CO2 and H2O as confirmed by total organic carbon and chemical oxygen demand analyses. Besides, this nanocatalyst showed a high reusability for MB and DS pollutants until four cycles.
期刊介绍：
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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