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Application of diglycolamide extractant in rare-earth extraction 二乙二醇酰胺萃取剂在稀土萃取中的应用
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-03-04 DOI: 10.1071/ch23188
Yiwen Wang, Aijun Gong, Lina Qiu, Yuzhen Bai, Yang Liu, Ge Gao, Weiyu Zhao
{"title":"Application of diglycolamide extractant in rare-earth extraction","authors":"Yiwen Wang, Aijun Gong, Lina Qiu, Yuzhen Bai, Yang Liu, Ge Gao, Weiyu Zhao","doi":"10.1071/ch23188","DOIUrl":"https://doi.org/10.1071/ch23188","url":null,"abstract":"<p>Diglycolamide (DGA) extractant is a kind of rare-earth extractant with promising applications that has the advantages of high extraction capacity, ease of synthesis, good thermal stability and good radiation stability. It is a green extractant that contains only four elements, C, H, O and N, and produces no residue after incineration. The properties of DGAs containing branched <i>N</i>,<i>N</i>′-alkyl substituents have been much studied in recent years, and it has been shown that branched side chains lead to better separation. The introduction of structurally rigid elements in DGA provides new possibilities for separation of rare earth elements (REEs). Owing to the tiny differences in the chemical properties of adjacent REES, the simple use of DGA extractant cannot meet all separation requirements, and a masking agent is added to the aqueous phase to improve the separation by coextraction to meet the requirements of different processes. This review presents the structural analysis of the complexes and crystals of diglycolamide extractants with rare-earth ions through different characterization means, and the effects of different structural extractants, solvents, nitric acid and phase modifiers on extraction behavior are reviewed. This review pays special attention to the effect of the side chain structure of diglycolamide on extraction behavior, which provides a theoretical basis and guiding direction for the field of separation of the REEs by diglycolamide extractants.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"22 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Status of rare-earth perovskite catalysts in environmental applications 稀土过氧化物催化剂在环境应用中的现状
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-03-04 DOI: 10.1071/ch23148
Pengyun Li, Aijun Gong, Jiandi Li, Lina Qiu, Xianghai Wang, Yue Chen, Jiayi Yin, Xinyu Huang, Yifan Chen
{"title":"Status of rare-earth perovskite catalysts in environmental applications","authors":"Pengyun Li, Aijun Gong, Jiandi Li, Lina Qiu, Xianghai Wang, Yue Chen, Jiayi Yin, Xinyu Huang, Yifan Chen","doi":"10.1071/ch23148","DOIUrl":"https://doi.org/10.1071/ch23148","url":null,"abstract":"<p>Rare-earth perovskite oxides have become a research hotspot in the fields of environment and energy owing to their structural tunability, excellent redox properties, high stability and high catalytic activity. Researchers have designed and developed different rare-earth perovskite catalysts for tackling environmental pollutants in recent years. This review summarizes recent research progress on rare-earth perovskite catalysts in the catalytic oxidation and photocatalytic degradation of pollutants, gas sensing of volatile organic compounds and photocatalytic water splitting for hydrogen production and carbon dioxide reduction and conversion, and summarizes the mechanism of these reactions. It also discusses in detail the relationship between structural modification, synthesis process and the physical–chemical properties of the catalysts. Finally, the challenges with rare-earth chalcocite catalysts in the field of environment and energy are discussed.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"26 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simultaneous diversity-oriented synthesis of benzothiazoles and related diverse analogues by iodine-catalyzed intramolecular cyclization from identical substrates 通过碘催化分子内环化从相同底物同时合成苯并噻唑及相关多样性类似物
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-03-04 DOI: 10.1071/ch23144
Meng Cui, Xue-Lin Wang, Mengzhou Wang, Jian-Wu Xie
{"title":"Simultaneous diversity-oriented synthesis of benzothiazoles and related diverse analogues by iodine-catalyzed intramolecular cyclization from identical substrates","authors":"Meng Cui, Xue-Lin Wang, Mengzhou Wang, Jian-Wu Xie","doi":"10.1071/ch23144","DOIUrl":"https://doi.org/10.1071/ch23144","url":null,"abstract":"<p>A facile oxidative cyclization of <i>β</i>-ketothioamides for the simultaneous formation of a compound library similar to natural product benzothiazole derivatives has been developed. The oxidative cyclization of <i>β</i>-ketothioamides resulted in the simultaneous formation of four classes of previously unknown benzothiazole derivatives. This chemistry’s versatility adds a valuable component to the methodology for obtaining benzothiazole derivatives.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"22 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental and computational study of a multi-active-site Schiff base as corrosion inhibitor of mild steel in 1M HCl 多活性位点席夫碱作为 1M HCl 中低碳钢缓蚀剂的实验和计算研究
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-01-23 DOI: 10.1071/ch23196
Xiaolong Li, Ting Long, Qian Wu, Chuan Lai, Yue Li, Junlan Li, Boyan Ren, Keqian Deng, Chaozheng Long, Shuting Zhao
{"title":"Experimental and computational study of a multi-active-site Schiff base as corrosion inhibitor of mild steel in 1M HCl","authors":"Xiaolong Li, Ting Long, Qian Wu, Chuan Lai, Yue Li, Junlan Li, Boyan Ren, Keqian Deng, Chaozheng Long, Shuting Zhao","doi":"10.1071/ch23196","DOIUrl":"https://doi.org/10.1071/ch23196","url":null,"abstract":"<p>In this study, the corrosion inhibition behavior of <i>N</i>,<i>N</i>′-(1,4-phenylene)bis(1,1-di(pyridin-2-yl)methanimine) (PBDPM) on mild steel in 1 M HCl at 30°C was evaluated under steady conditions. The corrosion inhibitor was synthesized by a one-step method. Electrochemical, energy dispersion spectrum (EDS) and water contact angle results revealed the adsorption behavior of the inhibitor at the metal–solution interface. The adsorption of PBDPM obeys the Langmuir adsorption isotherm. It is obvious that PBDPM exhibits good inhibition performance presumably due to its high surface coverage, as it forms a dense protective film on the surface of mild steel. The adsorption configuration and structure–activity relationships of the inhibitor were also explored theoretically by density functional theory (DFT) and molecular dynamics (MD), and the thermodynamic parameters and molecular active sites (the values of electrophilic attack and nucleophilic attack) were calculated.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"7 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139557150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recognising a beacon of teaching and learning leadership in Australian chemistry 表彰澳大利亚化学教与学领导力的灯塔
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-01-08 DOI: 10.1071/ch23146
Alex C. Bissember, Reyne Pullen, Gwendolyn A. Lawrie
{"title":"Recognising a beacon of teaching and learning leadership in Australian chemistry","authors":"Alex C. Bissember, Reyne Pullen, Gwendolyn A. Lawrie","doi":"10.1071/ch23146","DOIUrl":"https://doi.org/10.1071/ch23146","url":null,"abstract":"<p>This Highlight article considers key contributions made by Professor Brian Yates to the Australian chemistry academic community in recognition of his seminal leadership that led to the establishment of the Chemistry Threshold Learning Outcomes (CTLOs) as national assessment standards. These CTLOs currently underpin the Royal Australian Chemical Institute (RACI) process of the professional accreditation of chemistry majors in Australian tertiary institutions and, hence, provide benchmarks of learning in our discipline. Examples of contemporary assessment approaches in chemistry are presented to inform academics who are seeking to assess learning outcomes beyond threshold standards and to inspire future innovative assessment approaches.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"8 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139410663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cobalt(II) catalytic oxidation of arylmethyl sulfonyl imines to arylcarbonyl analogues 钴（II）催化芳基甲基磺酰亚胺氧化成芳基羰基类似物
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2024-01-08 DOI: 10.1071/ch23190
Zetao Ma, Peipei Ma, Hongli Wu, Haifeng Gan
{"title":"Cobalt(II) catalytic oxidation of arylmethyl sulfonyl imines to arylcarbonyl analogues","authors":"Zetao Ma, Peipei Ma, Hongli Wu, Haifeng Gan","doi":"10.1071/ch23190","DOIUrl":"https://doi.org/10.1071/ch23190","url":null,"abstract":"<p>A novel Co(OAc)<sub>2</sub>/<i>N</i>-hydroxyphthalimide (NHPI)-catalyzed oxidation of 3-arylmethyl sulfonyl imines to prepare 3-arylcarbonyl analogues has been realized. 3-Arylcarbonyl sulfonyl imines were comprehensively synthesized from benzyl substrates for the first time. The reactions proceeded in moderate to excellent yields. Mechanistic investigation suggests that 3-(hydroperoxy(phenyl)methyl)benzo[<i>d</i>]isothiazole 1,1-dioxide <b>A</b> is the key intermediate for the formation of products <b>2</b>.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"4 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139410667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lanthanide coordination polymers based on an aromatic dicarboxylic acid and 1,10-phenanthroline ligands: synthesis, structure and luminescence properties 基于芳香族二羧酸和 1,10-菲罗啉配体的镧系元素配位聚合物：合成、结构和发光特性
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2023-12-12 DOI: 10.1071/ch23149
Shu-Ju Wang, Yang Liu, Zhi-Qing Zhang, Qian Li, Gang Xiong, Li-Xin You, Yaguang Sun
{"title":"Lanthanide coordination polymers based on an aromatic dicarboxylic acid and 1,10-phenanthroline ligands: synthesis, structure and luminescence properties","authors":"Shu-Ju Wang, Yang Liu, Zhi-Qing Zhang, Qian Li, Gang Xiong, Li-Xin You, Yaguang Sun","doi":"10.1071/ch23149","DOIUrl":"https://doi.org/10.1071/ch23149","url":null,"abstract":"<p>A novel series of lanthanide coordination polymers (Ln-CPs) have been obtained based on mixed ligands, 2-[(4-carboxyphenyl)methoxy]benzoic acid (H<sub>2</sub>cob) and 1,10-phenanthroline (phen), namely {Ln[(Hcob)(cob)(phen)]<sub><i>n</i></sub>, Ln = La (<b>1</b>), Pr (<b>2</b>), Sm (<b>3</b>), Eu (<b>4</b>)}. Complexes <b>1</b>–<b>4</b> were characterized by single crystal X-ray diffraction, elemental analysis, powder X-ray diffraction, infrared spectroscopy and thermogravimetric analysis. Single crystal X-ray diffraction revealed that complexes <b>1</b>–<b>4</b> show two-dimensional layer structures. The luminescence properties of complexes <b>3</b> and <b>4</b> were thoroughly investigated.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"20 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138689400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel ratiometric fluorescent sensor based on terpyridine derivatives for Zn 2+ in aqueous solution 基于三元吡啶衍生物的水溶液中zn2 +的新型比例荧光传感器
IF 1.1 4区 化学
Australian Journal of Chemistry Pub Date : 2023-11-23 DOI: 10.1071/ch23153
Qinghong Bai, Yangming Jiang, Enming Hu, Libin Lv, Chenghui Wang, Xin Xiao
{"title":"A novel ratiometric fluorescent sensor based on terpyridine derivatives for Zn 2+ in aqueous solution","authors":"Qinghong Bai, Yangming Jiang, Enming Hu, Libin Lv, Chenghui Wang, Xin Xiao","doi":"10.1071/ch23153","DOIUrl":"https://doi.org/10.1071/ch23153","url":null,"abstract":"<p>Terpyridine and its derivatives have good binding affinity for most transition metal ions due to the arrangement of their three pyridine nitrogen atoms. In this work, a new ratiometric fluorescent probe <b>G</b>, which is based on a styrylpyridinium attached to a terpyridine fluorophore, was synthesized and characterized. The fluorescence spectrum of probe <b>G</b> shows a good response to Zn<sup>2+</sup> by an intramolecular charge transfer effect. On increasing the concentration of Zn<sup>2+</sup>, the fluorescence color of probe <b>G</b> changes from blue to yellow. Importantly, probe <b>G</b> has a high selectivity for Zn<sup>2+</sup>and is not affected by other metal ions, including Cd<sup>2+</sup>. In addition, the limit of detection (LOD) of probe <b>G</b> for Zn<sup>2+</sup> was found to be up to 0.17 µM. The results show that probe <b>G</b> has the ability to selectively recognize Zn<sup>2+</sup> in aqueous solution.</p>","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"6 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and antibacterial activity of 6″-decanesulfonylacetamide-functionalised amphiphilic derivatives of amikacin and kanamycin 6个″-十胺磺酰乙酰胺功能化的阿米卡星和卡那霉素两亲性衍生物的合成及其抗菌活性
4区 化学
Australian Journal of Chemistry Pub Date : 2023-11-13 DOI: 10.1071/ch23154
Dylan C. Farr, Lendl Tan, Juanelle Furness, I. Darren Grice, Nicholas P. West, Todd A. Houston
{"title":"Synthesis and antibacterial activity of 6″-decanesulfonylacetamide-functionalised amphiphilic derivatives of amikacin and kanamycin","authors":"Dylan C. Farr, Lendl Tan, Juanelle Furness, I. Darren Grice, Nicholas P. West, Todd A. Houston","doi":"10.1071/ch23154","DOIUrl":"https://doi.org/10.1071/ch23154","url":null,"abstract":"Aminoglycoside antibiotics represent the first class of successful drugs in the treatment of tuberculosis; however, mycobacteria and other bacterial species possess several drug resistance mechanisms to inactivate these natural products. In the past 15 years, a variety of amphiphilic aminoglycosides have been shown to have improved activity against infectious microorganisms and to subvert resistance mechanisms. Here, we report on four novel synthetic compounds derived from two existing potent antitubercular compounds and describe their activity against both Mycobacterium tuberculosis and Staphylococcus aureus. It was found that a decanesulfonylacetamide-based conjugate of amikacin displayed promising preliminary antitubercular activities, warranting further investigation to assess the therapeutic potential of these unique antimicrobials.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"30 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136348636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green synthesis of dual-spinneret electrospun polyacrylonitrile–ZnO@β-cyclodextrin–chitosan nanofibrous nanocomposite as a novel nano-biosorbent 绿色合成双喷丝网静电纺聚丙烯腈- zno @β-环糊精-壳聚糖纳米纤维复合材料作为新型纳米生物吸附剂
4区 化学
Australian Journal of Chemistry Pub Date : 2023-09-27 DOI: 10.1071/ch23098
Sohrab Hajmohammadi, Dadkhoda Ghazanfari, Enayatollah Sheikhhosseini, Nahid Rastakhiz, Hamideh Asadollahzadeh
{"title":"Green synthesis of dual-spinneret electrospun polyacrylonitrile–ZnO@β-cyclodextrin–chitosan nanofibrous nanocomposite as a novel nano-biosorbent","authors":"Sohrab Hajmohammadi, Dadkhoda Ghazanfari, Enayatollah Sheikhhosseini, Nahid Rastakhiz, Hamideh Asadollahzadeh","doi":"10.1071/ch23098","DOIUrl":"https://doi.org/10.1071/ch23098","url":null,"abstract":"A significant range of intriguing nanomaterials includes photocatalytic and antibacterial nanocomposites, which exhibit great efficacy in water treatment. In this work, Euphorbia hebecarpa extract was used as a novel natural reducing agent to investigate the environmentally friendly production of ZnO@β-cyclodextrin (CD) nanoparticles (NPs). In the following, polyacrylonitrile, ZnO@β-CD and chitosan nanofibers were electrospun concurrently using a dual-electrospinning process to create a unique nano-biosorbent made of polyacrylonitrile (PAN)–ZnO@β-CD–chitosan (CS) nanofibrous nanocomposite. Additionally, this nanocomposite’s effectiveness as a novel photocatalyst and antibacterial agent for eliminating organic dyes like methylene blue was evaluated. Field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) analysis, Fourier-transform infrared (FTIR) spectroscopy and Raman spectroscopy (RS) were used to analyze the structure of the nanocomposite. The outcomes verified the production of ZnO@β-CD, which had evenly shaped particles with an average size of 45 nm on the nanofibrous matrix. This nanocomposite exhibited removal efficiency of methylene blue of ~90% after 105 min at pH 7 and 2.5 g L−1 nanocomposite concentration. Furthermore, an antibacterial test revealed that PAN–ZnO@β-CD–CS nanofibrous nanocomposite with 6% ZnO showed over 80% reduction in colony-forming units per millilitre against Bacillus cereus, Staphylococcus epidermidis and Streptococcus iniae.","PeriodicalId":8575,"journal":{"name":"Australian Journal of Chemistry","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135477805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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