Acta Chimica Slovenica最新文献_第6页

Graphene Oxide/Polyamidoamine G4 as a High Efficient and Eco-Friendly Adsorbent for Dichromate Ions. 氧化石墨烯/聚酰胺胺 G4 作为重铬酸根离子的高效环保吸附剂

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2023.8361

Razieh Shekari Moghadam, Babak Samiey, Jiang Ning Wu

{"title":"Graphene Oxide/Polyamidoamine G4 as a High Efficient and Eco-Friendly Adsorbent for Dichromate Ions.","authors":"Razieh Shekari Moghadam, Babak Samiey, Jiang Ning Wu","doi":"10.17344/acsi.2023.8361","DOIUrl":"https://doi.org/10.17344/acsi.2023.8361","url":null,"abstract":"In this study, GO/PAMAM4 was used as a biocompatible nanocomposite adsorbent to adsorb dichromate (DC) ions. In alkaline solutions, DC ions changed to chromate ions which were not adsorbed on the surface of adsorbent. Thus, experiments were carried out in acidic and neutral water solution. Under these conditions, adsorption sites of adsorbent were protonated primary and ternary amine groups of adsorbent shown as -NH3+ and -NHR2+, respectively, that adsorbed DC ions through electrostatic interaction. Adsorption isotherms of DC on GO/PAMAM4 were obtained under various ionic strengths, pHs and temperatures. Isotherms were analyzed by the ARIAN model. The highest observed adsorption capacity of this process was 246.7 mg g-1 at pH=0 and 318 K. Tests at pH=2 showed that this process was endothermic. Adsorption kinetic experiments were carried out under various initial DC concentrations, pHs, temperatures, shaking rates and ionic strengths and were analyzed by the KASRA model and intraparticle diffusion, ISO and NIPPON equations. Pb2+, Cd2+, Cr3+ and tannic acid (TA) were separated by GO/PAMAM4 from DC ions and the GO/PAMAM4 was recycled by using an alkaline solution.","PeriodicalId":7122,"journal":{"name":"Acta Chimica Slovenica","volume":"71 2","pages":"363-379"},"PeriodicalIF":1.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449257","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

Succinyl curcumin conjugated chitosan polymer-prodrug Nanomicelles: A potential treatment for Type-II diabetes in Diabetic Balb/C mice. 琥珀酰姜黄素共轭壳聚糖聚合物-药物纳米细胞：糖尿病 Balb/C 小鼠 II 型糖尿病的潜在治疗方法。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2024.8658

Rahaman Sk Mosiur, Gouranga Dutta, Ranu Biswas, Abimanyu Sugumaran, Mohamed M Salem, Mohammed Gamal, Mohamed AbdElrahman, Mounir M Salem-Bekhit

引用次数: 0

Modification of PVA Nanofiber by Simple Hot Water Treatment and Application on the Removal of Malachite Green Dye From Aqueous Solutions. 通过简单热水处理对 PVA 纳米纤维进行改性并将其应用于去除水溶液中的孔雀石绿染料。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2023.8501

Banaz Arshad Abdulghafar, Suhad A Yasin, Nawzad S Saadi

{"title":"Modification of PVA Nanofiber by Simple Hot Water Treatment and Application on the Removal of Malachite Green Dye From Aqueous Solutions.","authors":"Banaz Arshad Abdulghafar, Suhad A Yasin, Nawzad S Saadi","doi":"10.17344/acsi.2023.8501","DOIUrl":"https://doi.org/10.17344/acsi.2023.8501","url":null,"abstract":"In this study, the crosslinking of PVA nanofiber was increased using solvent vapor treatment. Then, Fe3O4 nanoparticles were synthesized by a simple hot water technique and composited with the nanofiber. The study focuses on applying the modified PVA nanofibers to remove malachite green (MG) from water using different pH, contact times, and dye initial concentrations. The surface morphology of the nanofiber was determined using SEM, FTIR, and XRD techniques. SEM showed that the crosslinking was increased, and Fe3O4 nanoparticles appeared as agglomerates on the surface of the nanofiber. The removal percentages at optimal pH and contact time were 99.76%, and 99.5%, respectively. Thereafter, kinetics was studied by the linear pseudo-first order, pseudo-second order, Elovich equation, and Intraparticle diffusion models. Results demonstrated that the adsorption kinetics follow the pseudo-second order. Moreover, the adsorption isotherm was discussed using Langmuir and Freundlich equations. The Langmuir equation best described the adsorption with R2 value of 0.9771, and the maximum removal was 128.205 mg/g. As a result, the MG dye molecules covered the PVA nanofiber/Fe3O4 nanoparticles in a monolayer and homogenous coverage. The results of this study are significant for industries' wastewater treatment as they provide a potential solution for the removal of MG dye from textile, paper, cosmetics, food, and aquaculture industries' wastewater.","PeriodicalId":7122,"journal":{"name":"Acta Chimica Slovenica","volume":"71 2","pages":"398-408"},"PeriodicalIF":1.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449260","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 mat based on PVA doped with TiO2 nanoparticles for removal of methylene blue dye from aqueous solution and improving the carbon footprint. 一种基于掺入 TiO2 纳米粒子的 PVA 垫，用于去除水溶液中的亚甲基蓝染料并改善碳足迹。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2023.8410

Salah Abdullah, Aseel Alwan, Atheer Majeed, Suhad Yasin

{"title":"A mat based on PVA doped with TiO2 nanoparticles for removal of methylene blue dye from aqueous solution and improving the carbon footprint.","authors":"Salah Abdullah, Aseel Alwan, Atheer Majeed, Suhad Yasin","doi":"10.17344/acsi.2023.8410","DOIUrl":"https://doi.org/10.17344/acsi.2023.8410","url":null,"abstract":"Water supply is the great challenge for climate change and overpopulation. A Nanofiber mat consisting of Poly vinyl alcohol (PVA), nanoTiO2, and citric acid (PTC) was prepared using an electrospinning technique at a constant flow rate (0.5 ml/h). The morphology of the mat was detected using (FESEM) technique and image J software; they show that the mat has a Nanofiber morphology with an average diameter of 170 nanometers. This mat was used to remove methylene blue (MB) from water in two ways, the adsorption process and by photodegradation using UV light. The kinetic study of the adsorption of methylene blue MB on a PTC mat was carried out. results show that the pseudo-second order is best to describe the adsorption, of MB and the Intra- particle diffusion is the rate determining step. Seven isotherm models; four of two-parameters and three of three-parameters were used to examine the adsorption experimental data by applying linear and non-linear regression method using six error functions. The results showed comparable data between linear and non-linear regression methods for two parameters isotherms, and the best isotherm fitting with the data were Freundlich and Temkin models. On the contrary, three parameters isotherms showed distracted data between linear and non-linear regression methods. In addition, the results appear that the best predictive error function was ꭓ2.","PeriodicalId":7122,"journal":{"name":"Acta Chimica Slovenica","volume":"71 2","pages":"409-420"},"PeriodicalIF":1.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449331","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, characterization and biological applications of substituted indolo[2,1-b]quinazolin-12(6H)-one based rhenium(I) organometallic compounds. 取代的吲哚并[2,1-b]喹唑啉-12(6H)-酮基铼（I）有机金属化合物的合成、表征和生物应用。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2023.8579

Aelvish Padariya, Nirbhay K Savaliya, Milan P Dhaduk, Ravi A Dabhi, Bhupesh S Bhatt, Vaibhav D Bhatt, Mohan N Patel

引用次数: 0

Synthesis, antibacterial and antibiofilm activity of new 1,2,3,5-tetrazine derivatives from coupling reactions of diazonium salt of 2-amino-6-nitrobenzothiazole with diverse substituted 2-aminobenzothiazole derivatives. 2-amino-6-nitrobenzothiazole 的重氮盐与多种取代的 2-aminobenzothiazole 衍生物的偶联反应所产生的新 1,2,3,5-tetrazine 衍生物的合成、抗菌和抗生物膜活性。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-06-10 DOI: 10.17344/acsi.2023.8550

Joseph Tsemeugne, Yetiny Atuh Bah, Ulrich Joel Tsopmene, Armelle Tontsa Tsamo, Jérôme Ndefo Ndefonganga, Pierre Mkounga, Emmanuel Fondjo Sopbué, Jean Paul Dzoyem, Augustin Ephrem Nkengfack

{"title":"Synthesis, antibacterial and antibiofilm activity of new 1,2,3,5-tetrazine derivatives from coupling reactions of diazonium salt of 2-amino-6-nitrobenzothiazole with diverse substituted 2-aminobenzothiazole derivatives.","authors":"Joseph Tsemeugne, Yetiny Atuh Bah, Ulrich Joel Tsopmene, Armelle Tontsa Tsamo, Jérôme Ndefo Ndefonganga, Pierre Mkounga, Emmanuel Fondjo Sopbué, Jean Paul Dzoyem, Augustin Ephrem Nkengfack","doi":"10.17344/acsi.2023.8550","DOIUrl":"10.17344/acsi.2023.8550","url":null,"abstract":"The coupling reaction of diazonium ion of 2-amino-6-nitrobenzothiazole at 0-5 °C with distinctly substituted 2-aminobenzothiazole derivatives produced new 1,2,3,5-tetrazine derivatives. It was found that diazotized 2-amino-6-nitrobenzo[d]thiazol reacts with the ring nitrogen atom of varyingly substituted 2-aminobenzothiazole derivatives to yield tetrazine nucleus. The benzene ring of benzothiazole bearing electron donor group and annelated to the tetrazine was further substituted in situ by other 6-nitrobenzo[d]thiazol-2-yl) diazinyl to yield the final product. The structure of the prepared compounds was elucidated using their physical, elemental, and spectroscopic data. The synthesized compounds were tested for their antimicrobial and antibiofilm activities against Staphylococcus aureus and Escherichia coli bacteria. Two of the synthesis tetrazine derivatives exhibited interesting antibiofilm potential.","PeriodicalId":7122,"journal":{"name":"Acta Chimica Slovenica","volume":"71 2","pages":"353-362"},"PeriodicalIF":1.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449267","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

Validation of an isocratic HPLC method for simultaneous estimation of major phytosterols in Prunus spinosa L. extracts. 验证等度高效液相色谱法同时估算刺李提取物中的主要植物甾醇。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-05-25 DOI: 10.17344/acsi.2023.8196

Hurija Džudžević-Čančar, Alema Dedić, Amra Alispahić, Ivan Špánik

引用次数: 0

Synthesis of Bifunctional Amine-Squaramide Organocatalysts Derived from 3-((Dimethylamino)methylene)camphor. 由 3-((二甲基氨基)亚甲基)樟脑衍生的双功能胺-夸父酰胺有机催化剂的合成。

IF 1.2 4区化学

Acta Chimica Slovenica Pub Date : 2024-05-25 DOI: 10.17344/acsi.2024.8757

Uroš Grošelj, Luka Ciber, Helena Brodnik, Franc Požgan, Jurij Svete, Bogdan Štefane

引用次数: 0

In silico exploration of molecular mechanisms for inhibiting inflammatory responses by 3Н-thiazolo[4,5-b]pyridin-2-one derivatives. 3Н-Thiazolo[4,5-b]pyridin-2-one 衍生物抑制炎症反应的分子机制的硅学探索。