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O-Allyloxy chalcone derivatives: design, synthesis, anticancer activity, network pharmacology and molecular docking O-烯丙氧基查尔酮衍生物:设计、合成、抗癌活性、网络药理学和分子对接
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-09 DOI: 10.1007/s11696-024-03723-9
Shweta Umar, Sudhir Katariya, Rina Soni, Shubhangi S. Soman, B. Suresh

A series of (2E)-3-[2,4-bis(2-propen-1-yloxy)phenyl]-1-phenyl]-2-propen-1-ones—chalcone derivatives with O-allyloxy groups—were synthesized in good yields and characterized by different analytical techniques. Their anticancer activity was evaluated against the A549 (lung cancer) cell line. The most active compounds of this series were the 1-(4-fluorophenyl derivative 9c (IC50 = 0.48 ± 0.07 µM) and the 1-(4-octyloxy)phenyl derivative 9f (IC50 = 0.04 ± 0.01 µM). Network pharmacology analysis using the SwissTarget and DisGeNet databases identified potential targets for 9c in the Non-Small Cell Lung Carcinoma (NSCLC) cell line. Protein–Protein Interaction (PPI) network analysis revealed seven hub genes: MAPK14, PTGS2, HSP90AA1, MAPK8, NOS2, SYK, and NR3C1. Gene ontology analysis highlighted diverse biological functions. KEGG pathway analysis implicated pathways in cancer and immunoregulation. Molecular docking analysis suggested a strong interaction between 9c with MAPK14 (calculated docking score of  –8.4 kcal mol–1). Compound 9c's potent activity warrants further preclinical and clinical evaluation as a potential NSCLC therapy Based on this results, study of heterocyclic compounds with O-allyloxy groups will help to explore their impact on anticancer activity and mechanistic pathway.

我们合成了一系列(2E)-3-[2,4-双(2-丙烯-1-基氧基)苯基]-1-苯基]-2-丙烯-1-酮-带有 O-烯丙氧基基团的查耳酮衍生物,产量良好,并通过不同的分析技术对其进行了表征。评估了它们对 A549(肺癌)细胞系的抗癌活性。该系列中活性最强的化合物是 1-(4-氟苯基)衍生物 9c(IC50 = 0.48 ± 0.07 µM)和 1-(4-辛氧基)苯基衍生物 9f(IC50 = 0.04 ± 0.01 µM)。利用 SwissTarget 和 DisGeNet 数据库进行的网络药理学分析确定了 9c 在非小细胞肺癌 (NSCLC) 细胞系中的潜在靶点。蛋白质-蛋白质相互作用(PPI)网络分析发现了七个中心基因:基因本体分析强调了不同的生物功能。KEGG 通路分析显示了癌症和免疫调节的相关通路。分子对接分析表明,9c 与 MAPK14 之间有很强的相互作用(对接计算得分为 -8.4 kcal mol-1)。化合物 9c 的强效活性值得作为一种潜在的 NSCLC 治疗方法进行进一步的临床前和临床评估。
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引用次数: 0
Chalky limestone as sustainable water purification from eriochrome black T: kinetics, isotherm, and equilibrium 白垩质石灰石可持续净化铬黑 T 的水:动力学、等温线和平衡
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-09 DOI: 10.1007/s11696-024-03701-1
Sahbaa Younis Majeed, Enaam Ahmed Hamdon, Samie Yaseen Sharaf Zeebaree, Aymn Yaseen Sharaf Zeebaree

A sustainable, eco-friendly, and effective adsorbent has been employed for the removal of eriochrome black T (EBT) toxic dye from the effluent. This adsorbent, derived from natural chalky limestone, underwent thorough characterization using various investigative tools, including X-ray diffraction, energy-dispersive X-ray spectroscopy, Brunauer–Emmett–Teller, field emission scanning electron microscopy, transmission electron microscopy, dynamic light scattering, zeta potential, thermogravimetric analysis (TGA), and ultraviolet–visible technique. The chalky limestone exhibited distinctive properties, achieving an efficient removal percentage and high capacity within a short timeframe. Kinetic studies were conducted to assess the reaction speed, employing both pseudo-first-order and pseudo-second-order models, yielding R2 values of 0.67 and 0.62, respectively. Furthermore, thermal studies were carried out using Langmuir and Freundlich models to elucidate the interaction nature between the active sites of chalky limestone and EBT dye molecules, resulting in R2 values of 0.75 and 0.91, respectively. The research findings indicated that the adsorption process achieved equilibrium in just five minutes with adsorption capacity (qt) about 1.99 mg g−1, and the chalky limestone showed the ability to be reused for up to five cycles without any decrease in removal efficiency or requiring a desorption step.

我们采用了一种可持续、环保、有效的吸附剂来去除污水中的铒料黑 T(EBT)有毒染料。这种吸附剂取自天然白垩质石灰石,使用各种研究工具对其进行了全面的表征,包括 X 射线衍射、能量色散 X 射线光谱、布鲁纳尔-艾美特-泰勒、场发射扫描电子显微镜、透射电子显微镜、动态光散射、ZETA 电位、热重分析(TGA)和紫外可见光技术。白垩质石灰石表现出独特的特性,在短时间内实现了高效的去除率和高容量。采用伪一阶和伪二阶模型进行了动力学研究,以评估反应速度,得出的 R2 值分别为 0.67 和 0.62。此外,还利用 Langmuir 和 Freundlich 模型进行了热研究,以阐明白垩质石灰石活性位点与 EBT 染料分子之间的相互作用性质,结果 R2 值分别为 0.75 和 0.91。研究结果表明,吸附过程在短短五分钟内就达到了平衡,吸附容量(qt)约为 1.99 mg g-1,白垩质石灰石可重复使用多达五个周期,而去除效率不会降低,也不需要解吸步骤。
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引用次数: 0
Natural and synthetic polymers as effective corrosion inhibitors: a concise review 作为有效缓蚀剂的天然和合成聚合物:简明综述
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-09 DOI: 10.1007/s11696-024-03720-y
Kashif Rahmani Ansari, Ambrish Singh, Muhammad Younas, Ismat H. Ali, Yuanhua Lin

Significant concerns with corrosion might occur in terms of assurance, the natural world, and financial damage. One key piece of innovation toward preventing metallic corrosion includes the application of corrosion inhibitors. The polymer inhibitions of corrosion constitute the most promising areas for advancing of new corrosion inhibitors because they have more excellent adherence locations, higher temperature rebellion, versatility, viscosity, and superior filming capacity than smaller molecule corrosion inhibitors. The present review examines the development of natural and synthetic polymers for anti-corrosion agents. Such polymeric anti-corrosion agents work very well at inhibiting corrosion and do not need a high molecular weight. At this point, we examine the published literature on polymeric corrosion inhibitors and discuss how to improve them for use in the industry.

腐蚀可能会在保证、自然界和经济损失方面造成重大影响。防止金属腐蚀的一项关键创新包括缓蚀剂的应用。与小分子缓蚀剂相比,聚合物缓蚀剂具有更出色的附着位置、更高的温度抗逆性、多功能性、粘度和更强的成膜能力,因此是最有希望发展新型缓蚀剂的领域。本综述探讨了用于防腐蚀剂的天然和合成聚合物的发展情况。这类聚合物防腐剂的缓蚀效果非常好,而且不需要很高的分子量。在这一点上,我们研究了已发表的有关聚合物缓蚀剂的文献,并讨论了如何改进这些缓蚀剂以便在工业中使用。
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引用次数: 0
Development of molecularly imprinted polymer-based dispersive micro-solid-phase extraction for the selective extraction of histamine from canned tuna fish samples prior to its determination by GC–FID 开发基于分子印迹聚合物的分散微固相萃取技术,用于选择性萃取金枪鱼罐头样品中的组胺,然后利用气相色谱-质谱联用仪进行测定
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-09 DOI: 10.1007/s11696-024-03682-1
Sanaz Kamrani, Mohammad Reza Afshar Mogaddam, Mir Ali Farajzadeh, Mahboob Nemati, Aramdokht Khatibi

A molecularly imprinted polymer-based dispersive micro-solid-phase extraction method has been developed for the efficient extraction and preconcentration of histamine from tuna fish samples prior to its determination by gas chromatography–flame ionization detector. In this approach, a molecularly imprinted polymer was prepared by chemical oxidation of pyrrole using iron (III) chloride, and then, it was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy and used in the extraction procedure. The method was validated using the International Council Research Protocol, and the results showed low limits of detection (0.06 mg kg−1) and quantification (0.21 mg kg−1), good precision (relative standard deviation = 3.2%), linearity (r2 ≥ 0.9969) and acceptable extraction recovery (98%). The method was successfully done on various tuna fish samples, and histamine was determined in them.

研究人员开发了一种基于分子印迹聚合物的分散微固相萃取方法,用于在气相色谱-火焰离子化检测器测定金枪鱼样品中的组胺之前对其进行高效萃取和预浓缩。在该方法中,利用氯化铁(III)对吡咯进行化学氧化制备了分子印迹聚合物,然后利用傅里叶变换红外光谱和扫描电子显微镜对其进行了表征,并将其用于萃取过程。结果表明,该方法的检出限(0.06 mg kg-1)和定量限(0.21 mg kg-1)均较低,精密度(相对标准偏差 = 3.2%)、线性关系(r2 ≥ 0.9969)和萃取回收率(98%)均可接受。该方法成功地用于多种金枪鱼样品中组胺的测定。
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引用次数: 0
Virtual screening, docking, molecular dynamics study of efflux pump inhibitors against Helicobacter pylori 针对幽门螺旋杆菌的外排泵抑制剂的虚拟筛选、对接和分子动力学研究
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-07 DOI: 10.1007/s11696-024-03719-5
B. Akshaya Devi, Dhananjay Jade, K. H Sreenithya, Michael A. Harrison, Shobana Sugumar

Helicobacter pylori is a Gram-negative bacterium that infects the human gastrointestinal mucosa and is a significant human pathogen, affecting 50% of the world’s population. Multidrug Efflux Pump mepA from the MATE family of proteins acts as a potential efflux pump target in Helicobacter pylori which exports multiple drugs outside the Helicobacter pylori and consists of 417 amino acids. This study aimed to identify potential inhibitors of the multidrug efflux pump mepA in Helicobacter pylori using in-silico approaches that employed molecular docking, drug-likeness evaluation, density functional theory [DFT], molecular dynamics (MD) simulations, and free energy calculations to analyze, the interactions between phytochemicals compounds and mepA protein. The best compounds exhibiting the highest binding affinities toward mepA were selected among all the screened phytochemical compounds from the database. Overall, this research identified three promising natural compounds Hinokiflavone (− 10.9 kcal/mol), Ipomine (− 10.7 kcal/mol), and Lupinisoflavone M (− 10.5 kcal/mol) from 30 top compounds based on binding affinity score, which demonstrated remarkable binding affinities toward mepA through molecular docking, suggesting their potential to block the efflux pump and potentiate antibiotic action with the potential to inhibit the multidrug efflux pump mepA in Helicobacter pylori. Besides, we select one complex for 3 compounds for an analysis of DFT and calculate the stability of protein and protein–ligand complex by Molecular Dynamics simulation along with this we calculate the binding free energy for the complex’s protein for selected Lupinisoflavone M complex (− 98.948 kJ/mol). The study highlights the promising capacity of the selected compounds to inhibit the mepA efflux pump, potentially paving the way for developing novel therapeutic strategies against multidrug-resistant pathogens.

Graphical abstract

幽门螺旋杆菌是一种革兰氏阴性细菌,可感染人类胃肠道粘膜,是一种重要的人类病原体,影响着全球 50%的人口。MATE蛋白家族中的多药外排泵mepA是幽门螺旋杆菌中一个潜在的外排泵靶点,它将多种药物排出幽门螺旋杆菌之外,由417个氨基酸组成。本研究采用分子对接、药物相似性评估、密度泛函理论[DFT]、分子动力学(MD)模拟和自由能计算等方法,分析植物化学物质与mepA蛋白之间的相互作用,旨在确定幽门螺旋杆菌中多药外排泵mepA的潜在抑制剂。研究人员从数据库中筛选出了与 mepA 蛋白结合亲和力最高的化合物。总之,这项研究从 30 个基于结合亲和力得分的顶级化合物中发现了三个有潜力的天然化合物桧黄酮(- 10.9 kcal/mol)、伊泊明(- 10.7 kcal/mol)和羽扇豆异黄酮 M(- 10.5 kcal/mol),它们通过分子对接显示出与 mepA 的显著结合亲和力,表明它们具有阻断外排泵和增强抗生素作用的潜力,有可能抑制幽门螺旋杆菌中的多药外排泵 mepA。此外,我们还选择了 3 种化合物中的一种复合物进行 DFT 分析,并通过分子动力学模拟计算了蛋白质和蛋白质配体复合物的稳定性,同时还计算了所选羽扇豆异黄酮 M 复合物蛋白质的结合自由能(- 98.948 kJ/mol)。这项研究强调了所选化合物抑制 mepA 外排泵的能力,为开发针对耐多药病原体的新型治疗策略铺平了道路。
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引用次数: 0
Ultrasonic, surface tension and thermoacoustical studies of alkanone + amine mixtures 烷酮+胺混合物的超声波、表面张力和热声研究
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-05 DOI: 10.1007/s11696-024-03716-8
Ranjan Dey, Aditi Prabhune

Thermophysical properties have wide applications in various fields like chemical industries, mass and heat transfer processes, design and engineering calculations of industrial plants and their evaluation in liquid mixtures gives us a better understanding of intermolecular interactions taking place therein. The binary liquid mixtures under the current study comprise a range of alkanones viz. 2-Propanone, 2-Butanone, 2-Pentanone and 2-Heptanone with aromatic amines like Aniline, N-methylaniline and Pyridine at temperatures 293.15 K to 303.15 K which have multifarious industrial applications. In the present investigation, ultrasonic velocity((u)) studies have been carried out using five approaches at three temperatures. Furthermore, surface tension((sigma )), acoustical impedance((z)) and thermoacoustical parameters along with non-linearity parameters (B/A) have been evaluated. The variations in molecular interactions are well understood through interaction parameters((chi )). The obtained results indicate that the order of interactions is Pyridine < N-methylaniline  < Aniline for a specific alkanone and 2-Propanone > 2-Butanone > 2-Pentanone > 2-Heptanone for a given amine at all three temperatures. The study of thermophysical properties have been elaborated to understand the order of the interactions between various amines and alkanones.

热物理性质在化学工业、传质和传热过程、工业设备的设计和工程计算等各个领域都有广泛的应用,而在液体混合物中对其进行评估,可以让我们更好地了解其中发生的分子间相互作用。本次研究的二元液体混合物由一系列烷酮(即 2-丙酮、2-丁酮、2-戊酮和 2-庚酮)与芳香胺(如苯胺、N-甲基苯胺和吡啶)组成,温度为 293.15 K 至 303.15 K,具有多种工业用途。在本研究中,使用五种方法在三种温度下进行了超声波速度((u))研究。此外,还对表面张力、声阻抗和热声参数以及非线性参数(B/A)进行了评估。通过相互作用参数((chi))可以很好地理解分子相互作用的变化。所得结果表明,对于特定的烷酮,相互作用的顺序是吡啶< N-甲基苯胺< 苯胺;对于特定的胺,在所有三个温度下,相互作用的顺序是 2-丙酮> 2-丁酮> 2-戊酮> 2-庚酮。通过对热物理性质的研究,可以了解各种胺和烷酮之间相互作用的顺序。
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引用次数: 0
Investigating the effect of Ca-doping concentration on optical and electronic properties of RaTiO3 for energy applications 研究钙掺杂浓度对 RaTiO3 光学和电子特性的影响,以促进能源应用
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-04 DOI: 10.1007/s11696-024-03713-x
Zeesham Abbas, Amna Parveen, Abdullah M. Al-Enizi

The current study utilized DFT (density functional theory) calculations to examine the influence of Ca-doping on the optoelectronic properties of Ra0.875Ca0.125TiO3 (RCT12), Ra0.75Ca0.25TiO3 (RCT25), and Ra0.625Ca0.375TiO3 (RCT37). We utilize the FP-LAPW + lo (full potential linearized augmented plane wave plus local orbital) method in order to solve the Kohn–Sham equations using the generalized gradient approximation (GGA). The GGA model along with Hubbard potential (GGA + U) is utilized to compute fundamental properties of the studied perovskites. The energy bandgap values for RCT12, RCT25, and RCT37 are around 1.96, 1.92 and 1.87 eV, respectively. From the obtained (varepsilon_2 (omega )) spectra, it is evident that RCT12, RCT25, and RCT37 compounds shows a substantial absorption of incoming photons in the visible and near UV region. The computed values of (n(omega )) for RCT12, RCT25, and RCT37 are 1.79, 1.77 and 1.76, respectively. The aforesaid compounds having (n(omega )) values in the range of 1.0 and 2.0 are regarded as active optical materials. The optoelectronic characteristics of RCT12, RCT25, and RCT37 suggest that they have promising potential for use in energy-related applications like solar cells.

目前的研究利用 DFT(密度泛函理论)计算来研究 Ca 掺杂对 Ra0.875Ca0.125TiO3 (RCT12)、Ra0.75Ca0.25TiO3 (RCT25) 和 Ra0.625Ca0.375TiO3 (RCT37) 光电特性的影响。我们利用 FP-LAPW + lo(全势线性化增强平面波加局部轨道)方法,使用广义梯度近似法(GGA)求解 Kohn-Sham 方程。GGA 模型和哈伯德势(GGA + U)被用来计算所研究的过氧化物的基本特性。RCT12、RCT25和RCT37的能带隙值分别约为1.96、1.92和1.87 eV。从获得的 (varepsilon_2 (omega )) 光谱来看,RCT12、RCT25 和 RCT37 复合物在可见光和近紫外光区域显示出对进入光子的大量吸收。RCT12、RCT25 和 RCT37 的 (n(omega )) 计算值分别为 1.79、1.77 和 1.76。上述化合物的 (n(omega))值在 1.0 和 2.0 之间,被视为活性光学材料。RCT12、RCT25 和 RCT37 的光电特性表明,它们在太阳能电池等与能源有关的应用中具有广阔的应用前景。
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引用次数: 0
In vivo biocompatibility of electrospun chitosan/PEO nanofiber as potential wound dressing material for diabetic burn wound injury of mice 电纺壳聚糖/聚醚砜纳米纤维作为治疗小鼠糖尿病烧伤创面敷料的潜在创面敷料的体内生物相容性
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-04 DOI: 10.1007/s11696-024-03714-w
Farhin Khan, Baishakhi Bairagi, Bidya Mondal, Dipankar Mandal, Debjani Nath

Diabetes is a lifestyle havoc of the present epoch and patients suffer from all co-morbid situations. Diabetic burn wound patients are mostly affected due to the high rate of infection-alluring co-morbidity. Our study focused on the use of a unique combination of Chitosan/Polyethylene oxide (CS/PEO) woven into fibers by electrospinning to relieve these critical health conditions. The anti-inflammatory, antibacterial and tissue-repairing virtue of chitosan along with the broad-spectrum antibacterial effect of polyethylene oxide were highlighted for the treatment of ectopic infection and re-epithelialization of tissue. Single-dose streptozotocin-induced diabetic mice model was developed to study the applicability of CS/PEO nanofiber as dressing material on burn wounds. The average nanofiber diameter was 165  nm mimicking the extracellular matrix with a significant degree (125%) of swelling and thermal stability. Studies of optical density on the bacterial species identified from the wound suggested more than 50% antibacterial activity. Planimetric assessment, Haematoxylin & Eosin staining (HE) and Masson’s Trichrome (MT) staining suggested a remarkable 94.7% (p < 0.01) wound contraction with the increasing trend of re-epithelialization and  a reduced rate of inflammation in diabetic mice over 20 days. So, CS/PEO nanofiber can be used as an excellent alternative dressing material to heal diabetic burn wounds by limiting inflammatory infiltration and microvessels along with antibacterial efficacy.

糖尿病是当今时代生活方式的一大灾难,患者会患上各种并发症。由于感染率高,糖尿病烧伤创面患者大多会合并其他疾病。我们的研究重点是使用壳聚糖/聚环氧乙烷(CS/PEO)的独特组合,通过电纺丝将其编织成纤维,以缓解这些严重的健康状况。壳聚糖的抗炎、抗菌和组织修复功效以及聚环氧乙烷的广谱抗菌作用在治疗异位感染和组织再上皮化方面得到了突显。为了研究 CS/PEO 纳米纤维作为敷料在烧伤创面上的适用性,研究人员建立了单剂量链脲佐菌素诱导的糖尿病小鼠模型。纳米纤维的平均直径为 165 nm,模拟细胞外基质,具有显著的溶胀度(125%)和热稳定性。对伤口中细菌种类的光密度研究表明,其抗菌活性超过 50%。对糖尿病小鼠进行的平面评估、血红素和伊红染色(HE)以及马森三色染色(MT)表明,20 天内伤口收缩率达到 94.7%(p <0.01),伤口重新上皮化的趋势不断增强,炎症发生率降低。因此,CS/PEO 纳米纤维可作为一种极佳的替代敷料材料,通过限制炎症浸润和微血管以及抗菌功效来愈合糖尿病烧伤创面。
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引用次数: 0
10-[(4-Cyanobenzylidene)]-Anthracen-9(10H)-One: syntheses, characterization and application in UV light detection 10-[(4-氰基亚苄基)]-蒽-9(10H)-1:合成、表征及在紫外光检测中的应用
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-04 DOI: 10.1007/s11696-024-03672-3
Gonzalo Valdivieso, Neudo Urdaneta, Bruno Pribanic, Ronald Vargas, Rafael E. Rodríguez-Lugo

In this work, the compound 10-[(4-cyanobenzylidene)]-anthracen-9(10H)-one (1) has been synthesized from the corresponding anthrone and 4-cyanobenzaldehyde. It has been characterized by nuclear magnetic resonance (NMR), infrared spectroscopy (IR), high-resolution mass spectroscopy (HRMS) and single-crystal X-ray diffraction (XRD) analysis. Moreover, square wave voltammetry (SWV) was performed to determine the HOMO and LUMO potential levels of the anthrone derivative 1, which indicates that sensitization of TiO2-based electrodes is thermodynamically feasible. Therefore, this characteristic of compound 1 allowed its incorporation in a Grätzel-type solar cell. Photocurrent density measurements under UV irradiation are proportional to the light source intensity, and the operational parameters of the photoelectrochemical cell are relatively stable over time. In fact, the sensitivity of the generated photocurrent normalized by the supplied irradiance for TiO2-1 (7.73 µA/mW) as a photoanode is higher than that of TiO2 alone (5.14 µA/mW), indicating the improvement that 1 provides to TiO2 with respect to UV light detection. The higher photocurrent and the improved stability due to the implementation of 1 are very promising for possible applications as a sensitizer for UV light intensity sensors in dye-sensitized solar cells (DSSC).

本研究以相应的蒽酮和 4-氰基苯甲醛为原料合成了 10-[(4-氰基苯亚甲基)]-蒽-9(10H)-酮 (1)。通过核磁共振(NMR)、红外光谱(IR)、高分辨率质谱(HRMS)和单晶 X 射线衍射(XRD)分析对其进行了表征。此外,还通过方波伏安法(SWV)确定了蒽酮衍生物 1 的 HOMO 和 LUMO 电位水平,这表明对基于 TiO2 的电极进行敏化在热力学上是可行的。因此,化合物 1 的这一特性使其可以应用于格拉泽尔型太阳能电池。在紫外线照射下进行的光电流密度测定与光源强度成正比,而且光电化学电池的运行参数在一段时间内相对稳定。事实上,TiO2-1 作为光阳极所产生的光电流(7.73 µA/mW)的灵敏度与所提供的辐照度(5.14 µA/mW)相比更高,这表明 TiO2-1 在紫外光检测方面比 TiO2 更胜一筹。1 的光电流更高,稳定性更好,因此很有可能被用作染料敏化太阳能电池(DSSC)中紫外光强度传感器的敏化剂。
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引用次数: 0
Eco-friendly dye degradation: advanced Gd-Ni co-doped Ba-hexaferrite photocatalyst for methyl green removal 生态友好型染料降解:用于去除甲基绿的先进钆镍共掺杂 Ba-hexaferrite 光催化剂
IF 2.2 4区 化学 Q2 Engineering Pub Date : 2024-10-03 DOI: 10.1007/s11696-024-03702-0
Saima Rasheed, Muhammad Jamshaid, Shahid Iqbal, M. Ajmal Ali, Mohammad Abul Farah, Saltanat Aghayeva, Qasim Raza, Amir Nazir, Sana Ijaz

The current study focuses on synthesizing and characterizing the Gd and Ni co-doped Ba1-xGdxFe12-yNiyO19 nanoparticles (NPs) via emulsion method. The as-fabricated NPs were characterized using X-ray diffraction (XRD) analysis , Fourier transform infrared (FTIR) analysis, Raman spectroscopy, Scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM) analysis. The synthesis of single-phase Ba-hexaferrites with hexagonal geometry was successfully formed, with co-doping of Gd at tetrahedral and Ni at octahedral sites. SEM analysis revealed tubular particles with rounded spherical geometry, with an increased surface area increase in particle size from 25 to 35 nm upon doping. The magnetic investigation showed increased magnetization (45.7–70.2 emu/g) with co-doping. The doped materials showed excellent photocatalytic activities, degrading almost 90.2% of methyl green (MG) dye in 60 min of sunlight illumination in comparison with 32.26% of their counterpart. The reusability test showed excellent stability and recoverability, with only 1% loss in degradation activity after 5 runs. The results suggest that Gd- and Ni-doped Ba1-xGdxFe12-yNiyO19 NPs have superior photocatalytic activities, more magnetization, an exposed surface area, and excellent reusability, making them suitable for potential applications.

Graphical abstract

本研究的重点是通过乳液法合成和表征钆和镍共掺杂的 Ba1-xGdxFe12-yNiyO19 纳米粒子(NPs)。利用 X 射线衍射(XRD)分析、傅立叶变换红外(FTIR)分析、拉曼光谱、扫描电子显微镜(SEM)和振动样品磁力计(VSM)分析对制备的 NPs 进行了表征。通过在四面体位点和八面体位点共同掺杂钆和镍,成功合成了具有六边形几何形状的单相钡六铁氧体。扫描电镜分析表明,掺杂后的管状颗粒呈圆形球状,表面积增大,粒径从 25 纳米增大到 35 纳米。磁性研究表明,掺杂后磁化率增加(45.7-70.2 emu/g)。掺杂材料表现出优异的光催化活性,在 60 分钟的日光照射下,甲基绿(MG)染料的降解率接近 90.2%,而同类材料的降解率仅为 32.26%。可重复使用性测试表明,该催化剂具有极佳的稳定性和可回收性,5 次运行后降解活性仅下降 1%。结果表明,掺钆和掺镍的 Ba1-xGdxFe12-yNiyO19 NPs 具有更高的光催化活性、更大的磁化率、更大的暴露表面积和良好的可重复使用性,因此适合于潜在的应用领域。
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Chemical Papers
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