{"title":"新型 PANI@Er 掺杂氧化锌 (PEZ) MOFs:合成、表征和高效降解亚甲基蓝的光催化剂","authors":"Ekta Dhanda, Aditi Nain, Sanjay Dahiya","doi":"10.1007/s11270-024-07311-1","DOIUrl":null,"url":null,"abstract":"<div><p>Using environmentally friendly technologies to meet the environmental issue of wastewater is very essential. With this regard, a novel PANI@Er-doped ZnO (PEZ) ternary heterojunction was synthesized using ultrasonic-assisted wet impregnation method. This PEZ heterojunction was found enhanced photocatalytic efficiency with better stability in comparison of their counter parts. All parameters of synthesized samples were explored by XRD, UV-DRS, FE-SEM, EDAX, PL, and UV–Vis Spectroscopy to measure the detoriation rate. Significant photodegradation efficiency against methylene blue (MB) was observed nearly 89% in neutral medium in 90 min. The direction of migration of charge carriers, degradation in rate of recombination of photo-generated electron–hole pairs, and their effective separation of synthesized nanocomposite were responsible for this boost up degradation. UV-DRS and PL studies were conducted to assess the energy band gap that determines the absorption behavior of the produced photocatalyst and validate the active interactions of dopant metals with Polyaniline backbone chains. Pseudo -first order relation, best adjusted by an R<sup>2</sup> value of 1, best characterized the kinetic studies of methylene blue for all synthesized samples. Therefore, it can be said that Er-ZnO is a unique multifunctional material with applications as a catalyst for the breakdown of organic dyes and an improvement in catalytic behavior upon integration of organic material PANI. The obtained PANI@Er-doped ZnO nanocomposites are anticipated to be effective photocatalyst for the elimination of methylene blue in aqueous environment.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel PANI@Er-doped ZnO (PEZ) MOFs: Synthesis, Characterization and highly efficient photocatalyst for degradation of Methylene Blue\",\"authors\":\"Ekta Dhanda, Aditi Nain, Sanjay Dahiya\",\"doi\":\"10.1007/s11270-024-07311-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Using environmentally friendly technologies to meet the environmental issue of wastewater is very essential. With this regard, a novel PANI@Er-doped ZnO (PEZ) ternary heterojunction was synthesized using ultrasonic-assisted wet impregnation method. This PEZ heterojunction was found enhanced photocatalytic efficiency with better stability in comparison of their counter parts. All parameters of synthesized samples were explored by XRD, UV-DRS, FE-SEM, EDAX, PL, and UV–Vis Spectroscopy to measure the detoriation rate. Significant photodegradation efficiency against methylene blue (MB) was observed nearly 89% in neutral medium in 90 min. The direction of migration of charge carriers, degradation in rate of recombination of photo-generated electron–hole pairs, and their effective separation of synthesized nanocomposite were responsible for this boost up degradation. UV-DRS and PL studies were conducted to assess the energy band gap that determines the absorption behavior of the produced photocatalyst and validate the active interactions of dopant metals with Polyaniline backbone chains. Pseudo -first order relation, best adjusted by an R<sup>2</sup> value of 1, best characterized the kinetic studies of methylene blue for all synthesized samples. Therefore, it can be said that Er-ZnO is a unique multifunctional material with applications as a catalyst for the breakdown of organic dyes and an improvement in catalytic behavior upon integration of organic material PANI. The obtained PANI@Er-doped ZnO nanocomposites are anticipated to be effective photocatalyst for the elimination of methylene blue in aqueous environment.</p></div>\",\"PeriodicalId\":808,\"journal\":{\"name\":\"Water, Air, & Soil Pollution\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water, Air, & Soil Pollution\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11270-024-07311-1\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-024-07311-1","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
A novel PANI@Er-doped ZnO (PEZ) MOFs: Synthesis, Characterization and highly efficient photocatalyst for degradation of Methylene Blue
Using environmentally friendly technologies to meet the environmental issue of wastewater is very essential. With this regard, a novel PANI@Er-doped ZnO (PEZ) ternary heterojunction was synthesized using ultrasonic-assisted wet impregnation method. This PEZ heterojunction was found enhanced photocatalytic efficiency with better stability in comparison of their counter parts. All parameters of synthesized samples were explored by XRD, UV-DRS, FE-SEM, EDAX, PL, and UV–Vis Spectroscopy to measure the detoriation rate. Significant photodegradation efficiency against methylene blue (MB) was observed nearly 89% in neutral medium in 90 min. The direction of migration of charge carriers, degradation in rate of recombination of photo-generated electron–hole pairs, and their effective separation of synthesized nanocomposite were responsible for this boost up degradation. UV-DRS and PL studies were conducted to assess the energy band gap that determines the absorption behavior of the produced photocatalyst and validate the active interactions of dopant metals with Polyaniline backbone chains. Pseudo -first order relation, best adjusted by an R2 value of 1, best characterized the kinetic studies of methylene blue for all synthesized samples. Therefore, it can be said that Er-ZnO is a unique multifunctional material with applications as a catalyst for the breakdown of organic dyes and an improvement in catalytic behavior upon integration of organic material PANI. The obtained PANI@Er-doped ZnO nanocomposites are anticipated to be effective photocatalyst for the elimination of methylene blue in aqueous environment.
期刊介绍:
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation.
Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.