RSC Advances最新文献_第10页

Polyether-based polyurethane electrolyte for lithium metal battery: a perspective 用于锂金属电池的聚醚基聚氨酯电解质：展望

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA06863G

Peng Cui, Yifan Li, YuXing Liu, Siqi Wang, Xingyu Tang, Yihong Ye, Hance Su and Chun Sun

{"title":"Polyether-based polyurethane electrolyte for lithium metal battery: a perspective","authors":"Peng Cui, Yifan Li, YuXing Liu, Siqi Wang, Xingyu Tang, Yihong Ye, Hance Su and Chun Sun","doi":"10.1039/D4RA06863G","DOIUrl":"https://doi.org/10.1039/D4RA06863G","url":null,"abstract":"Polyurethane (PU)-based electrolyte has become one of the most important research directions because of its unique repeating ‘soft–hard’ segment co-polymer structure. Its ‘soft segment’ composition includes polyethylene oxide, polysiloxane, polycarbonate, cellulose and polyether. Among them, polyether-based polyurethane electrolytes (PPES) have the advantages of simple synthesis, molecular structure optimization and functional group modification, which can greatly improve the ionic conductivity of the system and form a good ion transport interface. To date, a few separate and detailed reviews of advances in PPES have been reported. In this paper, the research progress of PPES is reviewed from the aspects of structural design strategy, molecular synthesis, conductivity modification methods, specific functions and interfacial ion transport behavior in lithium metal batteries (LMBs). In addition, the synthetic route of PPES and the development prospect of PPES are discussed. We also provide guidance for developing high-performance PPES for next-generation LMBs.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 49","pages":" 36152-36160"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra06863g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A safe and efficient synthesis of N-Boc-β3-amino acid methyl esters from α-amino acids: applications in the formal synthesis of sedum alkaloids† 从α-氨基酸安全高效地合成 N-叔丁氧羰基-β3-氨基酸甲酯：在沉香生物碱正式合成中的应用†。

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA07506D

Bohua Long, Lijie Ren, Mengmeng Jiang, Shengquan Hu, Qianqian Jiang, Limin Li, Xuanluan Chen and Zhengzhi Wu

引用次数: 0

Chitosan supported ionic liquid, a multifaceted catalyst for streamlined and efficient synthesis of carboxylic, amino acid and carbohydrate esters† 壳聚糖支撑离子液体，一种用于简化和高效合成羧酸酯、氨基酸酯和碳水化合物酯的多元催化剂†。

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA05725B

Praachi Kakati and Satish Kumar Awasthi

{"title":"Chitosan supported ionic liquid, a multifaceted catalyst for streamlined and efficient synthesis of carboxylic, amino acid and carbohydrate esters†","authors":"Praachi Kakati and Satish Kumar Awasthi","doi":"10.1039/D4RA05725B","DOIUrl":"https://doi.org/10.1039/D4RA05725B","url":null,"abstract":"This work presents a sustainable approach for synthesizing esters from carboxylic acids, amino acids and carbohydrates using a robust and eco-friendly chitosan-incorporated ionic liquid under solvent-free conditions. Ionic liquids with carbon chain lengths ranging from 3 to 8 were integrated into the chitosan molecule, resulting in a heterogeneous catalyst optimized for esterification reactions. Among these, the 6-carbon chain ionic liquid demonstrated superior catalytic activity and substrate tolerance. The catalyst's effectiveness was confirmed using advanced analytical techniques. The acidity of the ionic liquid was assessed by observing the interaction between the synthesized IL6 (1,4-bis(5-carboxypentyl)pyrazine-1,4-diium ([BCPPD][Br])) and p-nitroaniline via UV-Vis studies. Chitosan-IL6, an ionic liquid supported on chitosan, functions as a heterogeneous catalytic system that can be easily removed from reaction mixtures through simple filtration. It also exhibits excellent reusability, maintaining high catalytic activity and structural integrity over 10 catalytic cycles. Moreover, the methodology was successfully scaled up for the gram-scale synthesis of key compounds such as diisopropyl azodicarboxylate, methyl nicotinate, methyl cysteinate, and glucose pentaacetate, highlighting its practical viability.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 49","pages":" 36193-36208"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra05725b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and antioxidant properties of tannic acid/copper ion nanozyme hybrid nanofibrous membranes† 单宁酸/铜离子纳米酶杂化纳米纤维膜的制备与抗氧化性能†.

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA05314A

Qiao Wu, Jingshu Xiao, Hu Zhuang, Fenghai Zhao, Ruoxi Li and Duntie Zhang

{"title":"Preparation and antioxidant properties of tannic acid/copper ion nanozyme hybrid nanofibrous membranes†","authors":"Qiao Wu, Jingshu Xiao, Hu Zhuang, Fenghai Zhao, Ruoxi Li and Duntie Zhang","doi":"10.1039/D4RA05314A","DOIUrl":"https://doi.org/10.1039/D4RA05314A","url":null,"abstract":"Excess free radicals can have some negative effects on human health. In this paper, a nanozyme was successfully constructed by the coordination of copper ions and tannic acid, and its structure and elemental distribution were determined by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. Free radical scavenging experiments confirmed that it possessed superoxide dismutase-like activity, catalase-like activity, and hydroxyl radical scavenging ability. The results of thermogravimetric analysis experiments demonstrated that it possessed good thermal stability. A polyacrylonitrile hybrid nanofibrous membrane loaded with Cu/TA nanozyme was successfully constructed by electrospinning technology, and the maximum scavenging rate of DPPH and ABTS radicals can reach 64.22% and 58.44%, respectively. The nanofiber membrane also exhibited the ability to protect cells from oxidative stress damage. Therefore, the hybrid nanofibrous membrane has a broad application prospect in fields such as food preservation and biomedicine.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 35743-35753"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra05314a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A facile synthesis of iron oxide nanoparticles as a nano-sensor to detect levofloxacin and ciprofloxacin in human blood and evaluation of their biological activities† 氧化铁纳米粒子的简易合成及其生物活性评估†

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA05024J

Erum Hasan, Ziana Manzar, Nabeel Haroon, Ali Raza, Syed Nawazish Ali, Mehreen Lateef and Sabira Begum

{"title":"A facile synthesis of iron oxide nanoparticles as a nano-sensor to detect levofloxacin and ciprofloxacin in human blood and evaluation of their biological activities†","authors":"Erum Hasan, Ziana Manzar, Nabeel Haroon, Ali Raza, Syed Nawazish Ali, Mehreen Lateef and Sabira Begum","doi":"10.1039/D4RA05024J","DOIUrl":"https://doi.org/10.1039/D4RA05024J","url":null,"abstract":"A rapid synthesis of a pH-stable magnetic nano-sensor (iron oxide nanoparticles, Fe-NPs, ∼2.6 nm) encapsulated with 3-aminobenzoic acid (3-ABA) was achieved. 3-ABA was prepared for the first time through the reduction of 3-nitrobenzoic acid (3-NBA) in the presence of HCl and tin. Electron-impact mass spectrometry (EIMS), Fourier-transform infrared (FTIR), nuclear magnetic resonance (NMR), ultraviolet visible (UV) spectroscopy and atomic force microscopy (AFM) were used for characterization. Ten drugs, namely, ciprofloxacin (CPF), levocetirizine (LCT), levofloxacin (LVF), sulbactam sodium (SBS), ephedrine (EPH), thymine (THM), sertraline (SRT), pyridoxine (PRX), cefotaxime (CFX) and ceftriaxone (CFT) were screened with Fe-NPs. A pronounced hypsochromic shift was observed for levofloxacin and ciprofloxacin, proving that 3-ABA-coated Fe-NPs were an efficient nano-sensor for levofloxacin and ciprofloxacin up to the limit of 0.5 and 0.7 μM, respectively. The stoichiometry of the complexes was conclusively determined as 1 : 1 using Job's plot analysis. Furthermore, the drugs were successfully detected in real samples, including tap water, well water, and human blood. Moreover, the antioxidant activity, urease and lipoxygenase inhibitory potential of these nanoparticles were evaluated, exhibiting promising antioxidant potential.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 36093-36100"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra05024j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of new-type, cost-effective and insensitive energetic materials via nitration of solid bituminous hydrocarbons† 通过硝化固体沥青烃合成新型、经济、不敏感的高能材料†。

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA06329E

Sahar Abdolahi and Mohammad Soleiman-Beigi

{"title":"Synthesis of new-type, cost-effective and insensitive energetic materials via nitration of solid bituminous hydrocarbons†","authors":"Sahar Abdolahi and Mohammad Soleiman-Beigi","doi":"10.1039/D4RA06329E","DOIUrl":"https://doi.org/10.1039/D4RA06329E","url":null,"abstract":"A global trend for the development of energetic materials using various sources is promoted by researchers annually. Solid bituminous hydrocarbons can play a key role in carbon science as abundant, low-cost, and mineral carbonaceous substrates. This study focuses on the design and synthesis of a series of new energetic materials from natural asphalt (NA), petroleum pitch (PP) and petroleum bitumen (PB) as industrial and available solid bituminous hydrocarbons. Energetic materials NA-NO2, PP-NO2 and PB-NO2 were synthesized through the nitrification reaction. The heat of combustion, thermal behaviors and FTIR, elemental, BET, UV-vis, SEM, EDX-map, AFM, GC-MS and TG-DSC analyses were applied to identify and confirm that all were prepared successfully. Further, the physicochemical and energy properties of NA-NO2, PP-NO2 and PB-NO2 were calculated using EMDB V 1.0 software. Thermal analysis showed thermal stability and insensitivity of NA-NO2, PP-NO2 and PB-NO2 toward mechanical stimuli. The combustion heats of NA-NO2, PP-NO2 and PB-NO2 were measured using a calorimeter bomb via the ASTM D240 method and evolved high amounts of energy of 23 500, 23 450 and 23 360 kJ kg−1, respectively. The density of NA-NO2 was measured using the ASTM-D8176 test and confirmed to be 0.5 g cm−3, which can be considered the lightest energetic material. Based on the conducted studies and analyses, new energetic materials synthesized based on solid bituminous hydrocarbons are classified as first-generation energetic materials.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 35971-35979"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra06329e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complexes between 2,2′-azobis(2-methylpropionamidine) dihydrochloride (AAPH) and cucurbit[n]uril hosts modulate the yield and fate of photolytically-generated AAPH radicals† 2,2′-azobis(2-methylpropionamidine) dihydrochloride (AAPH) 与葫芦[n]脲宿主之间的复合物可调节光解产生的 AAPH 自由基的产量和归宿†。

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA07150F

Angie C. Forero-Girón, Mauricio Oyarzún, Kevin Droguett, Denis Fuentealba, Soledad Gutiérrez-Oliva, Barbara Herrera, Alejandro Toro-Labbé, Eduardo Fuentes-Lemus, Michael J. Davies, Camilo López-Alarcón and Margarita E. Aliaga

{"title":"Complexes between 2,2′-azobis(2-methylpropionamidine) dihydrochloride (AAPH) and cucurbit[n]uril hosts modulate the yield and fate of photolytically-generated AAPH radicals†","authors":"Angie C. Forero-Girón, Mauricio Oyarzún, Kevin Droguett, Denis Fuentealba, Soledad Gutiérrez-Oliva, Barbara Herrera, Alejandro Toro-Labbé, Eduardo Fuentes-Lemus, Michael J. Davies, Camilo López-Alarcón and Margarita E. Aliaga","doi":"10.1039/D4RA07150F","DOIUrl":"https://doi.org/10.1039/D4RA07150F","url":null,"abstract":"Using theoretical and experimental tools we investigated the recognition of AAPH (2,2′-azobis(2-methylpropionamidine) dihydrochloride), a well-known water-soluble azo-compound employed as a source of peroxyl radicals, by cucurbit[6]uril (CB[6]), and cucurbit[8]uril (CB[8]). Density functional theory calculations and isothermal titration calorimetry experiments demonstrated that AAPH was not included in the cavity of CB[6], however, an exclusion complex was generated. Inclusion of AAPH in the CB[8] cavity was favored, forming stable inclusion complexes at 1 : 1 and 2 : 1 stoichiometries; AAPH@CB[8] and 2AAPH@CB[8], respectively. Radical formation upon photolytic cleavage of AAPH was examined theoretically, and by spin trapping with electron paramagnetic resonance. The radical yields detected with uncomplexed (free) AAPH and the AAPH-CB[6] (exclusion) complex were identical, whereas a marked decrease was shown for AAPH@CB[8]. Lower decreases were seen with a bimolecular (2 : 1) AAPH-CB[8] inclusion complex (2AAPH@CB[8]). This modulation was corroborated by the consumption of pyrogallol red (PGR), an oxidizable dye that does not associate with CB[6] or CB[8]. AAPH-CB[6] and 2AAPH@CB[8] did not significantly modify the initial consumption rate (Ri) of PGR, whereas AAPH@CB[8] decreased this. The oxidative consumption of free Trp, Gly–Trp and Trp–Gly by radicals derived from AAPH in the presence of CB[8] showed a dependence on the association of the targets with CB[8].","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 35980-35991"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra07150f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upconversion nanoparticles incorporated with three-dimensional graphene composites for electrochemical sensing of baicalin from natural plants† 上转换纳米颗粒与三维石墨烯复合材料用于天然植物黄芩苷的电化学传感†。

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA06540A

Na Zhang, Yilin Wu, Tian Liang, Yongxiang Su, Xusheng Xie, Tianren Zhang, Hongyan Wang, Keying Zhang and Rongli Jiang

{"title":"Upconversion nanoparticles incorporated with three-dimensional graphene composites for electrochemical sensing of baicalin from natural plants†","authors":"Na Zhang, Yilin Wu, Tian Liang, Yongxiang Su, Xusheng Xie, Tianren Zhang, Hongyan Wang, Keying Zhang and Rongli Jiang","doi":"10.1039/D4RA06540A","DOIUrl":"https://doi.org/10.1039/D4RA06540A","url":null,"abstract":"Chinese medicine has been widely studied owing to its many advantages. Baicalin (Bn), extracted from natural plants, has been shown to have significant anti-inflammatory and anticancer activity. Therefore, it is of great significance to develop a suitable method to detect the content of Bn in traditional Chinese medicine. Herein, we report an electrochemical sensor for the sensitive detection of Bn in Scutellaria root samples through a synergistic effect between upconversion nanoparticles (UCNPs) and three-dimensional macroporous graphene (3DG). The prepared UCNP-3DG composite was characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction spectroscopy (XRD). This proposed sensor exhibited a low detection limit of 3.8 × 10−8 M (S/N = 3). Importantly, the established method possesses good stability and selectivity and can successfully detect Bn in Scutellaria root samples. It provides a suitable strategy for the determination of Bn and has potential application prospects in the assay of traditional Chinese medicine.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 36084-36092"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra06540a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LCST/UCST behavior of polysaccharides for hydrogel fabrication 用于制造水凝胶的多糖的 LCST/UCST 行为

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA06240J

Seo Hyung Moon, Sol Ji Park, Ye Won Lee and Yun Jung Yang

{"title":"LCST/UCST behavior of polysaccharides for hydrogel fabrication","authors":"Seo Hyung Moon, Sol Ji Park, Ye Won Lee and Yun Jung Yang","doi":"10.1039/D4RA06240J","DOIUrl":"https://doi.org/10.1039/D4RA06240J","url":null,"abstract":"Hydrogel-based scaffolds play a crucial role in widespread biotechnological applications by providing physicochemical stability to loaded cells or therapeutic agents, interacting with organismal microenvironments, and controlling cargo release. Polysaccharides are regarded as attractive candidates among substrate materials because of their high water-retaining capacity, reactive functional groups, ease of gelation, low immunogenicity, biodegradability, and biocompatibility. However, employing polysaccharide-based hydrogel scaffolds for practical use in response to ongoing physiological and pathological changes within the human body, such as insufficient mechanical strength, uncertain degradation, and uncontrollable release patterns, is challenging. Several physically noncovalent or chemically covalent crosslinking strategies have been utilized to modify the physicochemical properties and biofunctionality of polysaccharide-based hydrogels. Among them, thermo-responsive gelation systems have been considered a promising approach for fabricating advanced scaffolds, referred to as ‘stimuli-responsive’ or ‘smart’ hydrogels. This is because of the sol–gel transition with a single trigger, requiring no further environmental or chemical intervention, and in situ and reversible gelation under ambient physiological temperature changes in a minimally invasive manner. This review highlights the classification, reaction mechanisms, characteristics, and advanced studies on thermo-responsive polysaccharides exploited in various biomedical fields.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 35754-35768"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra06240j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Cu/Mn/Ce polymetallic oxide catalysts and catalytic ozone treatment of wastewater 铜/锰/铈多金属氧化物催化剂的合成及催化臭氧处理废水

IF 3.9 3区化学

RSC Advances Pub Date : 2024-11-11 DOI: 10.1039/D4RA06052K

Jinlong Zhong, Xue feng Mao, Guanyu Wang, Heng Li, Junfang Li, Sijian Qu and Jianwei Zhao

{"title":"Synthesis of Cu/Mn/Ce polymetallic oxide catalysts and catalytic ozone treatment of wastewater","authors":"Jinlong Zhong, Xue feng Mao, Guanyu Wang, Heng Li, Junfang Li, Sijian Qu and Jianwei Zhao","doi":"10.1039/D4RA06052K","DOIUrl":"https://doi.org/10.1039/D4RA06052K","url":null,"abstract":"Non-homogeneous ozone-catalyzed oxidation technology is one of the effective ways of treating wastewater, the core of which lies in the development of efficient ozone oxidation catalysts. This work proposes the design and synthesis of an efficient Cu/Mn/Ce multi-metal composite oxide catalyst by metal salt precursor mixing-direct granulation. The effect of metal doping on the catalyst properties was compared using Density function theory (DFT) calculations, and the Cu/Mn/Ce co-doping showed significant charge accumulation effect with a low ozonolysis energy barrier, which is more favorable for the generation of reactive oxygen species. The successful loading of the main active metal components, such as Mn, Cu, and Ce, was clarified by systematic characterization by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and Brunauer–Emmett–Teller's test (BET), and the chemical oxygen demand (COD) removal could reach more than 60% for the simulated wastewater. The electron paramagnetic resonance (EPR) characterization clarified that the degradation of organic pollutants was mainly dominated by the combination of single-linear oxygen and superoxide radicals in the catalytic process, and the possible catalytic oxidation mechanism was proposed. This work advances the development of non-homogeneous ozone oxidation technology.","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 48","pages":" 35993-36004"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra06052k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0