Journal of metals, materials and minerals最新文献_第5页

pH-responsive polymeric nanostructures for cancer theranostics ph响应聚合物纳米结构在癌症治疗中的应用

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1609

Devadass Jessy Mercy, Karthick Harini, Swaminathan Madhumitha, Chinnadurai Anitha, Jayakumar Iswariya, K. Girigoswami, A. Girigoswami

引用次数: 3

Synthesis, characterization, and application of ZIF-8 for removal of Cd, Ni, and Pb ions from aqueous solutions: Optimization of the process by Response Surface Methodology (RSM) based on Central Composite Design (CCD) technique ZIF-8的合成、表征及去除水中Cd、Ni和Pb离子的应用:基于中心复合设计(CCD)技术的响应面法优化工艺

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1668

A. Khosravi, Maryam Randjbar, Razieh Habibpour

{"title":"Synthesis, characterization, and application of ZIF-8 for removal of Cd, Ni, and Pb ions from aqueous solutions: Optimization of the process by Response Surface Methodology (RSM) based on Central Composite Design (CCD) technique","authors":"A. Khosravi, Maryam Randjbar, Razieh Habibpour","doi":"10.55713/jmmm.v33i2.1668","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1668","url":null,"abstract":"A Zeolitic imidazolate framework-8 (ZIF-8) was synthesized by the solvothermal method of zinc nitrate hexahydrate and 2-methylimidazole in DMF to remove Cd(II), Ni(II), and Pb(II) ions from aqueous solutions. The synthesized ZIF-8 was distinguished by XRD, FT-IR, BET, SEM, EDX, TEM methods. Several significant variables were optimized with response surface methodology (RSM) to obtain the highest removal of metal ions. According to the achieved results, the aqueous solution pH values of 6.5, 6.5, and 6.0, ZIF-8 dosages of 0.05, 0.06, and 0.05 g⸳L-1, and metal ions initial concentrations of 50, 60, and 60 mg⸳L-1 were chosen as the optimum amount of these variables for Cd(II), Ni(II), and Pb(II) ions adsorption from solution, respectively. The equilibrium time for metal ions adsorption was found at 50 min. Three-dimensional plots demonstrate relationships between the metal ion uptakes with the paired factors, which illustrate the behavior of the sorption system in a batch process. Based on the experimental results and model parameters, maximum adsorption efficiencies were achieved 89.76, 72 and 68.43% for Cd(II), Ni(II) and Pb(II), respectively. It can be suggested that the synthetized ZIF-8 has excellent potential as an effective adsorbent and used for heavy metal sorption from water environment.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"43 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86989409","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

Feasibility study of coconut shell biochar production using community-scale biochar kiln 利用社区规模生物炭窑生产椰子壳生物炭的可行性研究

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1699

Uraiwan Pongsa, Pasuree Lumsakul, Orajit Jamesang, Prasan Saengkhiao, Phoometh Sangrayub, Wichai Pumchan

{"title":"Feasibility study of coconut shell biochar production using community-scale biochar kiln","authors":"Uraiwan Pongsa, Pasuree Lumsakul, Orajit Jamesang, Prasan Saengkhiao, Phoometh Sangrayub, Wichai Pumchan","doi":"10.55713/jmmm.v33i2.1699","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1699","url":null,"abstract":"The enormous coconut shell waste from local farmers and manufacturers has caused negative environmental and economic impacts in Thailand. A low-cost, small-scale pyrolysis kiln comprised of a cylindrical tank, gas circulating pipes, a kiln stand, and a manual drum lever was constructed and used to produce biochar from coconut shells in this study. The air intake and holding times for the biochar production process were varied. The biochar yield was 30.67% to 36.22%, or 4.6 kg to 5.4 kg per day per unit. The biochar porosity and fixed carbon content increased as the air intake and holding times were increased. The BET surface areas were 7.54 m²∙g-1 to 63.17 m²∙g-1. The pH values of biochar were alkaline, in the range of 7.34 to 10.24. Therefore, biochar can be used as a soil amendment material. The Net Present Value (NPV), the Internal Rate of Return (IRR), and the payback period are 52,757 THB (1,459.79 USD), 18.71%, 4 years, 10 months, and 27 days, respectively. According to economic analysis, investing in coconut shell biochar production under optimal conditions using the developed kiln is acceptable and can be viewed as a potential approach to providing additional economic benefits for coconut-based enterprises and the Thai community.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"28 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80107967","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

Production of autoclaved lightweight concretes using pottery stone and bagasse ash 用陶石和甘蔗渣灰蒸压轻质混凝土的生产

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1601

S. Sriprasertsuk, S. Daosukho

{"title":"Production of autoclaved lightweight concretes using pottery stone and bagasse ash","authors":"S. Sriprasertsuk, S. Daosukho","doi":"10.55713/jmmm.v33i2.1601","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1601","url":null,"abstract":"This study investigated the influence of pottery stone and bagasse ash on the mechanical features of autoclaved lightweight concrete. Pottery stone is a natural resource of igneous rock weathering commonly exists with white clay, feldspar and limestone. This raw material is mainly composed of quartz and mica that has been used for the production of ceramic products. Bagasse ash is a waste product of the sugar refining process that causes serious environmental pollution. Pottery stone and bagasse ash waste were physically characterized and partially substituted by the weight of cement in lightweight concrete with the addition of aluminium powder at a certain amount. The use of aluminium powder showed a positive effect on the porosity of lightweight bodies. Compressive strength, density and thermal conductivity were determined. Pottery stone can be used as a natural pozzolan for the production of lightweight concrete. Lightweight concrete manufactured with 17.5% pottery stone and 17.5% bagasse ash showed low density and good compressive strength. Autoclaved lightweight concrete is considered an economy in the consumption of pottery stone and bagasse ash waste as cement replacement, therefore enhancing the possibility of its reuse in a sustainable way.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"24 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85355476","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: 1

Physico-chemical characterization of snail shells powder prepared by mechanochemical processes and thermal treatment 机械化学和热处理法制备螺壳粉的理化性质

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1700

Mostapha Karaoui, R. Hsissou, M. Alami, M. Assouag

{"title":"Physico-chemical characterization of snail shells powder prepared by mechanochemical processes and thermal treatment","authors":"Mostapha Karaoui, R. Hsissou, M. Alami, M. Assouag","doi":"10.55713/jmmm.v33i2.1700","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1700","url":null,"abstract":"Natural particles are the most abundant resources exist in nature. Bio-sources of CaCO3 particles have attracted the attention of researchers for multiple cosmetics, industrial, and medical applications. This work investigates the structural evolution of CaCO3 containing in snail shell particles prepared by a mechanochemical process using methods of characterization as well as Differential scanning calorimeter (DSC), Thermogravimetric analysis (TGA), X-ray diffraction (X-RD), Fourier transformation infra-red (FT-IR), and Scanning microscopy equipped with Energy-dispersive X-Ray spectroscopy (SEM-EDXS). The result obtained from the above analysis indicates that SSP calcined between 200℃ to 400℃ undergoes an elimination of water molecules, followed by a phase transformation from Aragonite to CaCO3 Calcite. At 800℃, the SSP decomposes CaCO3, giving rise to calcium oxide crystals CaO, which release CO2 molecules. These eliminations and transformations represent a loss of 47.08% of the initial mass at 800℃. The morphological analysis shows the surface of SSP calcined at 800℃ with CaO/CaCO3 crystal formation. Also, the mechanochemical process leads to obtaining an SSP with a size between 3.311 µm to 10.140 µm. Snail shells can be a natural source of CaCO3 and CaO, thanks to their ease of extraction and processing.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"91 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89073264","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: 1

Ballistic performance of composite armor impacted by 7.62 mm armor projectile 7.62 mm装甲弹丸冲击复合装甲的弹道性能

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1698

A. Jinnapat, Patchayapon Doungkom, Kritkeaw Somton, K. Dateraksa

{"title":"Ballistic performance of composite armor impacted by 7.62 mm armor projectile","authors":"A. Jinnapat, Patchayapon Doungkom, Kritkeaw Somton, K. Dateraksa","doi":"10.55713/jmmm.v33i2.1698","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1698","url":null,"abstract":"The purpose of this study is to investigate the effectiveness of composite armor against 7.62 mm ballistic threats. A sandwich panel construction consisting of a 96% alumina ceramic strike face, an annealed aluminum alloy 7075 cubic lattice sandwich panel, and a thin aluminum backing plate were used to create hard armor. The ballistic test based on NIJ standard level III was performed using 7.62 mm × 51 mm NATO projectiles at an impact velocity of 847 ± 9.1 m∙s-1. The influences of the alumina strike face panel with thicknesses of 7, 10, and 14 mm on the ballistic performance were investigated. The results of the ballistic test suggest that hard armor designs can resist a ballistic impact of 7.62 mm × 51 mm NATO projectiles without penetrating them. With the increase in thickness of alumina ceramic tile, the deformation of the aluminum backing plate decreased. Furthermore, the annealed aluminum alloy 7075 cubic lattice sandwich panel could be able to absorb the residual kinetic energy of the projectile after it was eroded by the ceramic strike panel. The damaged targets after ballistic impact were presented. Collectively, these results indicate that the armor composites in this study may be used in military vehicle applications.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"32 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78716200","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

The influence of water-cement ratios and alumino-silicate based accelerator on the properties of fiber-reinforced cement composites 水灰比和硅酸铝基促进剂对纤维增强水泥复合材料性能的影响

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1633

Parinya Chakartnarodom, P. Sonprasarn, S. Polsilapa, N. Kongkajun, E. Laitila, W. Prakaypan

{"title":"The influence of water-cement ratios and alumino-silicate based accelerator on the properties of fiber-reinforced cement composites","authors":"Parinya Chakartnarodom, P. Sonprasarn, S. Polsilapa, N. Kongkajun, E. Laitila, W. Prakaypan","doi":"10.55713/jmmm.v33i2.1633","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1633","url":null,"abstract":"Due to more strict environmental protection and greenhouse gas reduction, it is very important for all industries to appropriately manage their energy consumption. Fiber- reinforced cement composites are the popular building materials which consume enormous energy to intensify its chemical reaction during the autoclave steam curing process. Utilization of chemical admixture to replace the conventional energy-driven autoclave steam curing process will support the fiber- reinforced cement composites industry to develop sustainable building materials. In this research, typical and mechanical properties of the air-cured fiber- reinforced cement composites incorporated with alumino-silicate based accelerator were investigated. The results show an excellent positive correlation between the water-cement ratio of the mix design and the mechanical strength which is the optimum water-cement ratio for this FRCC are 0.53. Moreover, the properties of fiber- reinforced cement composites cured by either the autoclave steam curing process or air-curing process are comparable.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73317179","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: 1

Synthesis of zinc oxide photocatalysts from zinc-dust waste for organic dye degradation 利用锌粉废渣合成氧化锌光催化剂降解有机染料

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1608

Wanwalee Promsuwan, P. Sujaridworakun, W. Reainthippayasakul

{"title":"Synthesis of zinc oxide photocatalysts from zinc-dust waste for organic dye degradation","authors":"Wanwalee Promsuwan, P. Sujaridworakun, W. Reainthippayasakul","doi":"10.55713/jmmm.v33i2.1608","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1608","url":null,"abstract":"Zinc-dust waste from a hot-dip galvanizing plant in the metal plating industry was successfully used as the starting material to synthesize zinc oxide (ZnO) nanopowder via a hydrothermal method. Effects of acid types in zinc-dust dissolving process and concentration of NaOH for precipitation on physical characteristics and photocatalytic activity of the synthesized ZnO were investigated. Elemental composition, phase and crystallite size, morphology with chemical composition, and specific surface area of the ZnO nanostructures were characterized by X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), and gas adsorption-desorption analysis, respectively. The photocatalytic performance of the prepared ZnO was evaluated by photodegradation of rhodamine B (RhB) under UV light irradiation. The ZnO nanostructures synthesized by dissolving zinc-dust with nitric acid, then precipitating with a solution of 6 M NaOH, and hydrothermal treatment at 170℃ for 8 h exhibited the highest dye degradation efficiency. It is up to 89.7% after UV irradiation for 240 min, which is comparable to the degradation efficiency of a commercial ZnO nanoparticles (92.7%). This work offers materials and synthesis method for alternative photocatalysts prepared from industrial waste that possess high photocatalytic activity for organic dye degradation. ","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82725562","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

Effect of nano CdO-ZnO content on structural, thermal, optical, mechanical and electrical properties of epoxy composites 纳米CdO-ZnO含量对环氧复合材料结构、热学、光学、力学和电学性能的影响

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1590

C. Srikanth, G. Madhu

{"title":"Effect of nano CdO-ZnO content on structural, thermal, optical, mechanical and electrical properties of epoxy composites","authors":"C. Srikanth, G. Madhu","doi":"10.55713/jmmm.v33i2.1590","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1590","url":null,"abstract":"Cadmium oxide doped zinc oxide nanoparticles were synthesized by solution combustion technique. CdO-ZnO nanoparticles were reinforced into epoxy by ultrasonication technique. CdO-ZnO nano-particles are well known semiconducting materials which are found to exhibit excellent semiconducting behavior even at high frequencies. Hence it was introduced into epoxy to study the semiconducting nature of CdO-ZnO/epoxy composites. The polymer composites exhibited interesting phenomenon such as minimum heat losses at high frequencies indicating semi-conducting behaviour of the composites. The polymer composite was also analysed for its structural, thermal, optical and mechanical properties. The enhanced interaction of CdO-ZnO nanoparticles with epoxy has resulted in superior UV-shielding effeciency and mechanical properties. This paper mainly focusses upon the synthesis and development of CdO-ZnO/epoxy composites, the design and optimization of CdO-ZnO compositions, the mechanical toughening and failure mechanism, transport mechanism of charge carriers, conductivity relaxation, ionic polarization and prospects of CdO-ZnO/epoxy composites in various fields.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83679135","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

Dielectric Properties and Electrochemical behavior of Graphene Oxide derived from Myanmar Coal Minerals 源自缅甸煤矿的氧化石墨烯的介电性能和电化学行为

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Journal of metals, materials and minerals Pub Date : 2023-06-27 DOI: 10.55713/jmmm.v33i2.1705

M. Maung, C. Aung, G. Panomsuwan, Khin Khin Win

{"title":"Dielectric Properties and Electrochemical behavior of Graphene Oxide derived from Myanmar Coal Minerals","authors":"M. Maung, C. Aung, G. Panomsuwan, Khin Khin Win","doi":"10.55713/jmmm.v33i2.1705","DOIUrl":"https://doi.org/10.55713/jmmm.v33i2.1705","url":null,"abstract":"Graphene Oxide (GO) metal nanocomposites make up an emerging class of advanced materials and enhance material functionality to obtain multifunctional properties and working towards superior performance of energy storage devices. GO was derived from Myanmar coal minerals using Modified Hummer method. The silver and nickel nanoparticles were used as metal ions or metal nanoparticles to form GO nanocomposites. Their characteristics were identified by XRD, SEM and Raman Spectroscopy. The energy gap of GO and GO composites was also investigated by the aid of UV-Vis spectroscopy. The dielectric constant is measures of the amount of electrical energy that can be stored in GO derived from coal mineral. The frequency-dependent dielectric properties and AC conductivity has been explored using GW INSTEK LCR-8110 meter. It was found that the dielectric constant is maximum at low frequencies region and decreases with increasing frequency. The electrochemical performance of this sample was examined by cyclic voltammetry (CV) measurement. The CV curves of GO have typical rectangular-like shape and no evident oxidation/reduction peak. The prototypes of flat-shaped capacitors were prepared and their capacitive values were also determined. The as-prepared GO on the copper foil can be directly used to fabricate solid-state super capacitor.","PeriodicalId":16459,"journal":{"name":"Journal of metals, materials and minerals","volume":"10 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72705974","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