Radiochimica Acta最新文献_第3页

Process development studies on the recovery of caesium specific calix-crown-6 extractant from actual spent calix solution for efficient spent solvent management 从实际废钙溶液中回收铯特异性钙-冠-6萃取剂以实现高效废溶剂管理的工艺开发研究

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-06-21 DOI: 10.1515/ract-2023-0192

Deepika Nair, Prema Gireesan, Dayamoy Banerjee, Raman K. Mishra, Sanjay Kumar

引用次数: 0

On transfer factors of natural radionuclides and radiological health risks assessment of some fruit samples 天然放射性核素的转移因子和一些水果样品的辐射健康风险评估

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-06-07 DOI: 10.1515/ract-2023-0233

Hemn Salh, S. Sedeeq, Serpil Aközcan Pehlivanoğlu, Ikbal M. Albarzinji, F. Külahcı

{"title":"On transfer factors of natural radionuclides and radiological health risks assessment of some fruit samples","authors":"Hemn Salh, S. Sedeeq, Serpil Aközcan Pehlivanoğlu, Ikbal M. Albarzinji, F. Külahcı","doi":"10.1515/ract-2023-0233","DOIUrl":"https://doi.org/10.1515/ract-2023-0233","url":null,"abstract":"Abstract In this study, the activity concentration of artificial and natural radionuclides such as 137Cs, 40K, 226Ra, and 232Th was measured in the soil under the roots; leaves; and fruits of six different fruit trees namely mulberry, fig, apricot, olive, black and white grapes in Koya district, Erbil province, Iraq. For this purpose, a high-resolution gamma spectroscopy consisting of a high-purity germanium (HPGe) detector was used. In addition, the associated radiological risks from soil and fruits were assessed by calculating several radiological indices such as radium equivalent (Raeq.s), absorbed dose (Ds), indoor (AEDEs indoor ) and outdoor annual effective doses (AEDEs outdoor ), internal and external hazard indices, gamma index and the excess lifetime cancer risk (ELRCs). The results show that consuming these fruits is radiologically safe because they can cause an annual effective dose of about 61.72 μSv y−1 and excess lifetime cancer risk of 0.06 × 10−3 Sv y−1. On the other hand, transfer factors of radionuclides from soil to leaves; and from soil to fruits were studied. The transfer factor analysis revealed that among the studied fruits and radionuclides, apricot and mulberry exhibited the highest transfer factors for 40K, with values of 1.85 and 1.87, respectively.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141375027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Application of INAA technique for analysis of essential and toxic elements in two Algerian plants Cynodon dactylon L. and Phragmites australis 应用 INAA 技术分析阿尔及利亚两种植物 Cynodon dactylon L. 和 Phragmites australis 中的必需元素和有毒元素

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-06-07 DOI: 10.1515/ract-2023-0270

N. Moulai, Brahim Beladel, Mohammed Messaoudi, Nadjet Osmani, Abdelkarim Brahimi, Abderrahim Malki, Rahima Lammouri, Abdelkader Ouanezar

{"title":"Application of INAA technique for analysis of essential and toxic elements in two Algerian plants Cynodon dactylon L. and Phragmites australis","authors":"N. Moulai, Brahim Beladel, Mohammed Messaoudi, Nadjet Osmani, Abdelkarim Brahimi, Abderrahim Malki, Rahima Lammouri, Abdelkader Ouanezar","doi":"10.1515/ract-2023-0270","DOIUrl":"https://doi.org/10.1515/ract-2023-0270","url":null,"abstract":"Abstract This study represents the investigation of major and trace elements in two indigenous plants, Cynodon dactylon (L.) and Phragmites australis, grown in the Ghardaia region of Southern Algeria. Using Instrumental Neutron Activation Analysis (INAA) technique, the research aimed to ascertain the content of essential and toxic elements in the aerial parts of these plants. Twenty eight elements as (Ag, As, Ba, Br, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, Hg, K, La, Lu, Na, Nd, Rb, Sb, Sc, Se, Sm, Sr, Tb, Th, Yb and Zn) were analysis with INAA method. Given the scarcity of data regarding essential and toxic chemical elements in food within Algeria, the study focused on evaluating the content of these elements in two plant species commonly utilized by Bedouins in traditional medicine and as fodder, as well as by professionals for decontamination and water purification purposes. The concentrations of mineral elements observed in these plants were found to be in proximity to the minimum levels recommended by the Food and Agriculture Organization (FAO). The data obtained from this investigation are deemed applicable for Algerian food purposes, offering valuable insights into the elemental composition of these plants and their potential roles in traditional and practical applications.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Migration study of uranium in Beishan granite by the continuous column method 用连续柱法研究北山花岗岩中的铀迁移

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-06-05 DOI: 10.1515/ract-2024-0281

Si-yi Gong, Jinguang Zheng, Xin Yang, Yan Ma, Zhenfeng Tong, Tao Chen

引用次数: 0

Evaluating SiO2/Al2O3/poly(acrylic acid-co-glycidyl methacrylate) composite as a novel adsorbent for cobalt(II) radionuclides 将二氧化硅/Al2O3/聚（丙烯酸-甲基丙烯酸缩水甘油酯）复合材料作为新型钴（II）放射性核素吸附剂进行评估

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-06-04 DOI: 10.1515/ract-2023-0243

A. M. Emara, Emad M. Elsharma, I. M. Abdelmonem, Mamdoh R. Mahmoud

{"title":"Evaluating SiO2/Al2O3/poly(acrylic acid-co-glycidyl methacrylate) composite as a novel adsorbent for cobalt(II) radionuclides","authors":"A. M. Emara, Emad M. Elsharma, I. M. Abdelmonem, Mamdoh R. Mahmoud","doi":"10.1515/ract-2023-0243","DOIUrl":"https://doi.org/10.1515/ract-2023-0243","url":null,"abstract":"\u0000 A novel SiO2/Al2O3/poly(acrylic acid-co-glycidyl methacrylate), SiO2/Al2O3/P(AA-co-GMA), composite was synthesized and evaluated for its effectiveness in adsorbing Co(II) ions from aqueous solutions. The composite was analyzed using various techniques including FTIR, SEM, TGA, DTA, and XRD. The composite displays a high specific surface area of 17.451 m2/g, exceeding that of the corresponding copolymer, which measures 0.236 m2/g. Batch adsorption experiments were conducted to investigate the factors influencing the adsorption capacity of the composite for Co(II) ions. In the pH experiments, it was found that at a solution pH of 3.4, the P(AA-co-GMA) copolymer alone showed limited capability in adsorbing Co(II) ions, achieving only 3.82 mg/g. However, upon integration of SiO2/Al2O3 into the polymer matrix, the composite exhibited a significantly enhanced adsorption capacity of 103.54 mg/g. The adsorption process followed a pseudo-second-order kinetic model and attained equilibrium within 60 min. The Langmuir isotherm model was found to best describe the adsorption behavior, with a maximum adsorption capacity of 217.86 mg/g. The adsorption of Co(II) was significantly affected by the ionic strength, especially with Al3+ displaying a more pronounced impact on the adsorption of Co(II) ions compared to Na+, Ca2+, and Mg2+. Thermodynamic studies indicate that the adsorption process was spontaneous and endothermic. Overall, the SiO2/Al2O3/P(AA-co-GMA) composite material displayed significant adsorption ability for Co(II) ions, making it a suitable option for further development as an effective adsorbent in water treatment applications.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Sorption behavior of low specific activity 99Mo on Ti- and Zr-xerogels as an alternative to fission-based 99Mo/99mTc generators 低比活度 99Mo 在 Ti- 和 Zr-xerogels 上的吸附行为，作为裂变式 99Mo/99mTc 发生器的替代物

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-05-30 DOI: 10.1515/ract-2023-0223

Nancy Moreno-Gil, Verónica E. Badillo-Almaraz, Guadalupe C. Velazquez-Peña, Miguel A. Camacho-López, Keila Issac-Olivé

{"title":"Sorption behavior of low specific activity 99Mo on Ti- and Zr-xerogels as an alternative to fission-based 99Mo/99mTc generators","authors":"Nancy Moreno-Gil, Verónica E. Badillo-Almaraz, Guadalupe C. Velazquez-Peña, Miguel A. Camacho-López, Keila Issac-Olivé","doi":"10.1515/ract-2023-0223","DOIUrl":"https://doi.org/10.1515/ract-2023-0223","url":null,"abstract":"In order to contribute to the sufficient supply of clinical 99mTc(VII), the sorption behavior of neutron-produced 99Mo(VI) was investigated on synthetized single and binary Ti and Zr xerogels treated at different temperatures, under normal operating conditions. Materials were prepared by the sol–gel method and characterized by several techniques. Sorption batch systems were performed using 99Mo radiotracer to determine the metallic affinity as a function of pH, and a methodology was developed in order to obtain the maximum capacities by surface saturation, where the Ti-388, TiZr-388 (3:1) and Zr-388 samples showed the most noteworthy sorption behaviors (33.1 ± 0.34 mg/g at pH ∼ 6.0, 31.7 ± 0.27 mg/g at pH ∼ 6.5, and 23.5 ± 0.61 mg/g at pH ∼ 6.8, respectively). The molybdenum-99 sorption behavior was also studied by fitting to the Freundlich and Langmuir models, and all xerogels could be described as heterogeneous materials with favorable 99Mo sorption properties. Finally, preliminary studies of clinical-scale 99Mo/99mTc generators were performed, the results revealed the next maximum 99mTc elution yield order Ti-388 (89.6 %) > TiZr-388 (3:1) (86.7 %) > Zr-388 (77.7 %).","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation of radioactivity concentrations and soil-to-plant transfer factors in soil samples taken from different distance zones to the Metsamor nuclear power plant 调查从梅萨莫尔核电站不同距离区域采集的土壤样本中的放射性浓度和土壤-植物转移因子

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-05-29 DOI: 10.1515/ract-2024-0291

Serdar Dizman, Selim Sari, Cafer Mert Yesilkanat

引用次数: 0

The performance of iron-silicate-based biochar as a sorbent material towards 133Ba retention from radioactive liquid waste 硅酸铁基生物炭作为吸附材料从放射性液体废物中截留 133Ba 的性能

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-05-27 DOI: 10.1515/ract-2024-0273

Sara S. Mahrous, Muhammad S. Mansy, Maha A. Youssef

{"title":"The performance of iron-silicate-based biochar as a sorbent material towards 133Ba retention from radioactive liquid waste","authors":"Sara S. Mahrous, Muhammad S. Mansy, Maha A. Youssef","doi":"10.1515/ract-2024-0273","DOIUrl":"https://doi.org/10.1515/ract-2024-0273","url":null,"abstract":"The application of Phalaris seed peel (PSP) for the production of biochar involves the pyrolysis process in an N2 environment, resulting in the creation of a cost-effective sorbent. Two distinct modifications were conducted on the existing biochar (BC), employing just silicate (BC/SiO2) and in combination with iron-silicate (BC/SiO2/Fe). Several analytical methods were used to look at the modified biochar’s physical and chemical properties. These included scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis-differential thermal analysis (TGA-DTA), and surface area analysis. Based on the initial investigations, it has been revealed that the use of silica and iron as the second modification is a more suitable approach for effectively retaining 133Ba from liquid radioactive waste streams. The investigation of sorption kinetics and isotherms was conducted to enhance our understanding of the process. The Langmuir isotherm model demonstrates the most optimal correlation for sorption, yielding a maximum sorption capacity (Q max) of 31 mg/g. Furthermore, an evaluation was performed on the BC/SiO2/Fe sorbent material by subjecting it to a mixture of simulated radioactive liquid waste, which included 133Ba, 60Co, and 137Cs.The experimental results indicate that BC/SiO2/Fe exhibits a comparatively higher sorption capacity for 133Ba when compared to 60Co and 137Cs as competing ions.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Quantification of Zr in simulated dissolver solution of U–Zr fuel by laser-induced breakdown spectroscopy 利用激光诱导击穿光谱定量测定铀-锆燃料模拟溶解液中的锆含量

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-05-24 DOI: 10.1515/ract-2023-0208

U. K. Maity, Namitha Janardhanan, Manoravi Periasamy

引用次数: 0

New lead barium borate glass system for radiation shielding applications: impacts of copper (II) oxide on physical, mechanical, and gamma-ray attenuation properties 辐射屏蔽应用中的新型硼酸铅玻璃体系：氧化铜（II）对物理、机械和伽马射线衰减特性的影响

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-05-24 DOI: 10.1515/ract-2024-0275

M. Sayyed, Aljawhara H. Almuqrin, Karem A. Mahmoud

{"title":"New lead barium borate glass system for radiation shielding applications: impacts of copper (II) oxide on physical, mechanical, and gamma-ray attenuation properties","authors":"M. Sayyed, Aljawhara H. Almuqrin, Karem A. Mahmoud","doi":"10.1515/ract-2024-0275","DOIUrl":"https://doi.org/10.1515/ract-2024-0275","url":null,"abstract":"\u0000 The current work seeks to develop a novel CuO-doped lead calcium barium borate glass using the melt quenching method at 1100 °C. There was a 3.91–4.49 g/cm3 change in the fabricated glasses’ density, with a respective 0–15 mol.% increase in the CuO concentration. Additionally, substituting CuO for B2O3 reduced the fabricated glasses mechanical properties due to the decreased dissociation energy between 63.99 and 60.50 kcal/cm3, and the packing factor decreased between 15.22 and 13.23 cm3/mol. Through increasing the fabricated glasses’ CuO concentration, there was a decrease in the bulk, longitudinal, shear, and mechanical Young moduli. Moreover, Monte Carlo simulation (energy interval: 0.033–2.506 MeV) was employed to evaluate the fabricated glasses’ ability to shield gamma rays. A 0–15 mol.% increase in the CuO concentration raised the linear attenuation coefficient (LAC) between 14.081 and 16.797 cm−1 (0.059 MeV), 0.325–0.371 cm−1 (0.662 MeV), and 0.154–0.176 cm−1 (2.506 MeV). The LAC enhancement reduced the required half value thickness of the fabricated glasses by 16.2 %, 12.53 %, and 12.85 % at the of 0.059, 0.662, and 2.506 MeV gamma ray energies.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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