Journal of Materials Science and Chemical Engineering最新文献

Electrochemical Oxidation of Methylene Blue by Cyclic Voltammetry on a Boron-Doped Diamond Electrode in Various Supporting Electrolytes 用循环伏安法在掺杂硼的金刚石电极上对亚甲基蓝的电化学氧化

Journal of Materials Science and Chemical Engineering Pub Date : 2025-01-01 DOI: 10.4236/msce.2025.138003

Evelyne Marie Hélène Loba, Foffié Thiery Auguste Appia, Kouadio Fulgence Yao, Tiémélé Ghislaine Désirée Kouassi, Lassiné Ouattara, Kwa-Koffi Edith Kouassi

{"title":"Electrochemical Oxidation of Methylene Blue by Cyclic Voltammetry on a Boron-Doped Diamond Electrode in Various Supporting Electrolytes","authors":"Evelyne Marie Hélène Loba, Foffié Thiery Auguste Appia, Kouadio Fulgence Yao, Tiémélé Ghislaine Désirée Kouassi, Lassiné Ouattara, Kwa-Koffi Edith Kouassi","doi":"10.4236/msce.2025.138003","DOIUrl":"https://doi.org/10.4236/msce.2025.138003","url":null,"abstract":"In this study, the electrochemical behavior of methylene blue (MB) dye was investigated at a boron-doped diamond (BDD) electrode in various supporting electrolyte solutions. The physical characterization of the BDD surface by scanning electron microscopy (SEM) reveals a polycrystalline structure with grain sizes ranging between 0.3 and 0.6 μm. With Raman spectroscopy, the BDD surface is composed of diamond-type carbon (Csp3) and graphitic-type carbon (Csp2). Electrochemical characterization of the BDD electrode in 0.1 M H2SO4 and Na2SO4 solutions showed the presence of an anodic wave close to the onset potential of oxygen evolution. In the presence of MB, four anodic peaks and one cathodic peak were recorded in both media. Analysis of the first anodic and cathodic peaks suggests a quasi-reversible electrochemical process. In 0.1 M NaOH, the electrochemical response revealed a distinct anodic peak associated with oxygen evolution. The oxidation of MB in this basic medium was characterized by a broad anodic wave beginning within the potential window for water stability on the BDD electrode. The results obtained across the different electrolytes indicate that methylene blue can be oxidized either through direct electron transfer at the electrode surface or indirectly via reactive oxidative species generated in solution. The electrochemical process is diffusion-controlled, and in all three media, the formation of a polymeric film on the electrode surface was observed. These findings confirm the suitability of BDD electrodes for the electrochemical investigation and quantification of methylene blue.","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"13 08","pages":"28-46"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.scirp.org/pdf/msce_1741411.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Adsorption of Phenanthrene in Soil to Biochar Modified by β-Cyclodextrin β</i&gt；-环糊精改性生物炭对土壤中菲的吸附

Journal of Materials Science and Chemical Engineering Pub Date : 2024-01-01 DOI: 10.4236/msce.2024.129002

Wanke Chen, Qing Guo, Xiaoyan Wang, Xiao Wang, Jing Yuan, Qian‐Feng Zhang

{"title":"Adsorption of Phenanthrene in Soil to Biochar Modified by &#946;-Cyclodextrin","authors":"Wanke Chen, Qing Guo, Xiaoyan Wang, Xiao Wang, Jing Yuan, Qian‐Feng Zhang","doi":"10.4236/msce.2024.129002","DOIUrl":"https://doi.org/10.4236/msce.2024.129002","url":null,"abstract":"In this study, the adsorption effect of β-cyclodextrin modified biochar (BC) on phenanthrene (PHE) in contaminated soil was investigated, aiming to provide an efficient and environmentally friendly remediation strategy for Polycyclic Aromatic Hydrocarbons (PAHs) contaminated soil. Through kinetic and isotherm analysis, β-CDBC-CA showed excellent phenanthrene adsorption performance, and the adsorption effect increased with the increase of time and was affected by temperature. The results show that β-CDBC-CA can not only effectively adsorb phenanthrene in soil, but also serve as a surfactant to help desorption phenanthrene adsorbed by soil organic matter and improve the efficiency of microbial degradation. The experimental data showed that the Elovich model could describe the adsorption behavior of β-CDBC-CA on phenanthrene well, while Langmuir and Freundlich models performed better in fitting parameters, revealing the adsorption mechanism of phenanthrene in contaminated soil by β-cyclodextrin-modified biochar. In addition, temperature has a significant effect on the adsorption capacity of β-CDBC-CA, and its application in soil remediation can be optimized by adjusting temperature. This study not only provides new materials and technical means for soil remediation but also provides important data support for an in-depth understanding of the environmental behavior of PAHs. By citing relevant research results, this study further improves the control and understanding of environmental risks of PAHs, which is of great significance for the protection of ecological environment and human health.","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"12 09","pages":"44-54"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.scirp.org/pdf/msce2024129_21741316.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Study of the Electronic Structure and Optical Properties of Rare Earth Luminescent Materials 稀土发光材料的电子结构与光学性质研究

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.1110002

Chengxi Zhang

引用次数: 0

Overview of Precious Metal Content Analysis Methods in Automotive Catalytic Converter 汽车催化转化器中贵金属含量分析方法综述

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.1111002

Xianpeng Yang, Chengbao Xie, Ning Liu, Xin Du, Suqing Wang, Huasheng Jiang, Zhengang Zhang

引用次数: 0

Diagnosis of Wastewater Contamination by Metalic Trace Elements (MTE) in the Areas of Yopougon (South Abidjan) and Marcory, Koumassi (North Abidjan) from March to July 2021 2021年3月至7月在Yopougon(南阿比让)和marcoory, Koumassi(北阿比让)地区进行金属微量元素(MTE)废水污染诊断

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.1110003

Lydie Nina Amon, Aboubakar Sidik Diaby, Alfred Niamien Kouamé, Kouamé Eric Yao, Ali Sanou, Léon Koffi Konan, Kalpy Julien Coulibaly, Mireille Dosso

{"title":"Diagnosis of Wastewater Contamination by Metalic Trace Elements (MTE) in the Areas of Yopougon (South Abidjan) and Marcory, Koumassi (North Abidjan) from March to July 2021","authors":"Lydie Nina Amon, Aboubakar Sidik Diaby, Alfred Niamien Kouamé, Kouamé Eric Yao, Ali Sanou, Léon Koffi Konan, Kalpy Julien Coulibaly, Mireille Dosso","doi":"10.4236/msce.2023.1110003","DOIUrl":"https://doi.org/10.4236/msce.2023.1110003","url":null,"abstract":"Contamination of the aquatic environment by Metallic Trace Elements (MTE) is a major problem encountered in our environment today. In Côte d’Ivoire, in some municipals, residential and industrial areas in the city of Abidjan, waste water of worrying quantity is discharged into the rainwater drainage channels which flow directly into the Ebrié lagoon. In order to identify the origin of the pollution by metallic trace elements (MTE) transported by this water, samples of wastewater were collected and then analyzed. ICP-MS was used for MTE (Cu, Fe, Zn, Al, Pb, Cd) analyses and results were statistically processed in multivariate form using PCA and Excel. The results showed high concentrations of metals, with the exception of Cd. The typological structure represents 85.74% of the total information for the MTE. Plan F1 represents 63.90% of the variance and describes water pollution by copper (0.95), zinc (0.90), iron (0.84) and aluminum (0.84). Plan F2 represents 21.84% and describes the enrichment of water with lead (0.84). It seems more than necessary to make manufacturers aware of the need to install wastewater treatment systems in order to avoid their discharge into the environment.","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135211202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corn Starch Derived Capacitive Carbon Prepared by One-Step K2CO3 Carbonization for Supercapacitors 一步法制备玉米淀粉衍生电容炭2CO3超级电容器的碳化

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.1110001

Ruiying Wu, Hongyan Pan

引用次数: 0

Kinetic and Thermodynamic Study of the Elimination of Remazol Black on Activated Carbon Based on Ricinodendron heudelotii Shells 基于</ amp;gt;蓖麻的活性炭去除雷马唑黑的动力学和热力学研究贝壳

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.119001

Kouakou Yao Urbain, Kambiré Ollo, Eroi N’goran Sévérin, Koné Yétchié Tchonrontcha, Trokourey Albert

{"title":"Kinetic and Thermodynamic Study of the Elimination of Remazol Black on Activated Carbon Based on &lt;i&gt;Ricinodendron heudelotii&lt;/i&gt; Shells","authors":"Kouakou Yao Urbain, Kambiré Ollo, Eroi N’goran Sévérin, Koné Yétchié Tchonrontcha, Trokourey Albert","doi":"10.4236/msce.2023.119001","DOIUrl":"https://doi.org/10.4236/msce.2023.119001","url":null,"abstract":"Activated carbon made from the shells of Ricinodendron heudelotii was used to remove the remazol black dye in aqueous solution. The results of the characterization of this carbon revealed that it is microporous, with a basic global surface (0.337 mmol/L) and a specific surface of 612 m2/g. The prepared carbon therefore has excellent adsorbent properties. Kinetic and thermodynamic studies were carried out to describe the adsorption mechanism of remazol black on this carbon. It appears from this study that the pseudo-second-order kinetic model is the best suited to describe this adsorption phenomenon with an equilibrium time of 200 min. The adsorption equilibrium study revealed that Langmuir and Freundlich models can help to describe the adsorption process. We note that the optimum pH and optimum mass for the removal of 20 mg/L of remazol black are 3 and 0.25 g, respectively. This carbon made it possible to eliminate more than 98% of the remazol dye in aqueous solution. The thermodynamic study revealed that the adsorption is of the physisorption type, spontaneous and endothermic.","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Properties of Polymeric p-Benzoyl-4,4'-Diaminobenzoylaniline 聚合物 > /i>-苯甲酰-4,4'-二氨基苯甲酰苯胺的合成、表征和性能

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.118003

Chundong Mi, Menglan Yuan, Yuchen Zhang, He Li, Qianfeng Zhang

{"title":"Synthesis, Characterization and Properties of Polymeric &lt;i&gt;p&lt;/i&gt;-Benzoyl-4,4&#39;-Diaminobenzoylaniline","authors":"Chundong Mi, Menglan Yuan, Yuchen Zhang, He Li, Qianfeng Zhang","doi":"10.4236/msce.2023.118003","DOIUrl":"https://doi.org/10.4236/msce.2023.118003","url":null,"abstract":"An aromatic polyamide was synthesized by low-temperature poly-condensation reaction from terephthaloyl chloride and 4,4'-diaminobenzanilide (4,4'-DABA). The synthesized polyamide had a characteristic peak of carbon atoms in the amide group at 166 ppm, which was demonstrated by the solid nuclear magnetic resonance carbon spectrum. It was shown to be the stretching vibration absorption peak of the amide N-H bond at 3342 cm−1 by Fourier infrared (FT-IR) spectroscopy. It was obtained that the energy band near 1100 - 1276 cm−1 belongs to the absorption peak of the para-substituted benzene ring and the band near 2977 cm−1 was the C-H stretching vibration peak of the benzene ring by Raman spectroscopy. The molecular structure of the synthesized polyamide compound was confirmed by FT-IR, Raman, and solid 13C-NMR spectroscopies. It was proved that the polymer is stable up to 300˚C and has a relatively high stability by the thermogravimetric analysis. It was also confirmed by the fluorescence spectrum that it has a strong blue fluorescence near 420 nm. The morphological characteristics of the polymer were further demonstrated by electron scanning electron microscopy (SEM). The properties of polymeric p-benzoyl-4,4'-diaminobenzoyl-aniline were found to emit strong blue fluorescence and have good thermal stability, making it a promising functional material for fluorescence in the blue region with potential for large-scale applications.","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135058469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Structural Characterization and Antimicrobial Activity of a Novel Cobalt(II) Complex Based on 3-Methyl-1-Phenyl-4-(2-Thienoyl)-Pyrazol-5-One 基于3-甲基-1-苯基-4-(2-硫烯基)-吡唑-5- one的新型钴(II)配合物的合成、结构表征及抗菌活性

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.118007

Emeline Sorelle Mefouegang, Claudelle Sybilline Anensong Djadock, Golngar Djimassingar, Gabriel Tchuente Kamsu, Donald Raoul Tchuifon Tchuifon, Alain Charly Tagne Kuate, Dirk Bockfeld, Jean Ngoune

{"title":"Synthesis, Structural Characterization and Antimicrobial Activity of a Novel Cobalt(II) Complex Based on 3-Methyl-1-Phenyl-4-(2-Thienoyl)-Pyrazol-5-One","authors":"Emeline Sorelle Mefouegang, Claudelle Sybilline Anensong Djadock, Golngar Djimassingar, Gabriel Tchuente Kamsu, Donald Raoul Tchuifon Tchuifon, Alain Charly Tagne Kuate, Dirk Bockfeld, Jean Ngoune","doi":"10.4236/msce.2023.118007","DOIUrl":"https://doi.org/10.4236/msce.2023.118007","url":null,"abstract":"New cobalt(II) complex, [Co(O2C15H11N2S)2(OH2)2]∙2H2O (1∙2H2O), has been synthesized upon reaction of cobalt chloride hexahydrate (Co(Cl)2∙6H2O) with 3-methyl-1-Phenyl-4-(2-thienoyl)-pyrazol-5-one (referred as HL) in ethanol at room temperature. Single crystal X-ray diffraction (XRD), spectroscopic methods, and microelemental analyses were used to characterize 1∙2H2O. Compound 1∙2H2O crystallizes in the orthorhombic crystal system with a Pbca space group and with the cobalt atom being pseudo-octahedral coordinated. The broth microdilution technique was used to screen the free ligand (HL) and the complex (1∙2H2O) for antimicrobial activities. HL has a low activity (MIC > 100 μg/mL) on all microorganisms, whereas compound 1∙2H2O displayed moderate activity (10 ∙2H2O exhibited bactericidal and fungicidal activity respectively on all the bacteria and yeasts tested. These findings reveal that the antimicrobial activity of HL was enhanced upon coordination to Co(II) ion against all microorganisms (bacteria and fungus).","PeriodicalId":16172,"journal":{"name":"Journal of Materials Science and Chemical Engineering","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135103153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular Dynamics (MD) Applications in Materials Science and Engineering and Nanotechnology 分子动力学(MD)在材料科学与工程和纳米技术中的应用

Journal of Materials Science and Chemical Engineering Pub Date : 2023-01-01 DOI: 10.4236/msce.2023.1111001

Rishaad Khan

引用次数: 0