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Chalcogenide Letters最新文献

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Adsorption behavior and mechanism of heavy metal ions from acid mine drainage using two-dimensional MoS2 nanosheets 二维二硫化钼纳米片对酸性矿山废水中重金属离子的吸附行为及机理
4区 材料科学
Chalcogenide Letters Pub Date : 2025-10-01 DOI: 10.15251/cl.2025.2210.889
Kai‐Xue Wang, G. L. Lian, Ye Qiao
{"title":"Adsorption behavior and mechanism of heavy metal ions from acid mine drainage using two-dimensional MoS2 nanosheets","authors":"Kai‐Xue Wang, G. L. Lian, Ye Qiao","doi":"10.15251/cl.2025.2210.889","DOIUrl":"https://doi.org/10.15251/cl.2025.2210.889","url":null,"abstract":"The remediation of acid mine drainage (AMD), characterized by its high concentrations of toxic metal ions and low pH, presents a significant environmental challenge. In this study, exfoliated two-dimensional MoS₂ nanosheets were prepared using a liquid-phase ultrasonication method and evaluated for their efficiency in removing Cd²⁺, Cu²⁺, and Pb²⁺ from aqueous solutions. Detailed structural and morphological analyses confirmed that the exfoliation process significantly enhanced surface area, pore volume, and exposure of reactive sulfur sites. Through isotherm and kinetic modeling analyses, the adsorption behavior was found to align with the Langmuir model and pseudo-second-order kinetic equation, which implies that monolayer chemisorption serves as the primary adsorption mechanism. Spectroscopic characterizations revealed the formation of stable metal–sulfur complexes, highlighting the pivotal role of sulfur functional groups in binding metal ions. The developed MoS₂ nanosheets demonstrated rapid adsorption kinetics and high removal efficiencies under optimal conditions, confirming their potential as a highly effective and sustainable material for heavy metal remediation in complex aqueous environments","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"22 10","pages":"889-904"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/cl.2025.2210.889","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147916587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and synthesis of diketopyrrolopyrrole-CdS hybrid nanostructures for enhanced photovoltaic applications 二酮吡咯-吡咯- cds杂化纳米结构的设计与合成
4区 材料科学
Chalcogenide Letters Pub Date : 2025-08-01 DOI: 10.15251/cl.2025.228.693
Q. Fei, B. Jin, B. C. Jiang, J. S. Huang, L. Li
{"title":"Design and synthesis of diketopyrrolopyrrole-CdS hybrid nanostructures for enhanced photovoltaic applications","authors":"Q. Fei, B. Jin, B. C. Jiang, J. S. Huang, L. Li","doi":"10.15251/cl.2025.228.693","DOIUrl":"https://doi.org/10.15251/cl.2025.228.693","url":null,"abstract":"An innovative hybrid nanostructure composed of diketopyrrolopyrrole (DPP) oligomers and cadmium sulfide (CdS) nanoparticles was developed to enhance the efficiency of organic– inorganic photovoltaic devices. The DPP-CdS hybrids were synthesized via a solution-phase mixing method, resulting in uniform nanoparticle dispersion along polymer fibrils and strong interfacial coupling. Structural characterization confirmed the coexistence of crystalline CdS domains and partially ordered DPP phases, while spectroscopic analyses indicated notable redshifts and band broadening, evidencing electronic interactions at the interface. The hybrid material displayed significantly broadened light absorption across the 400–700 nm range and an optimized optical bandgap of ~1.92 eV. When implemented in inverted bulk heterojunction solar cells (ITO/PEDOT:PSS/DPP-CdS/PC71BM/Al), the active layer enabled a short-circuit current density of 11.3 mA/cm², open-circuit voltage of 0.82 V, and a power conversion efficiency (PCE) of 5.93%—more than double the PCEs of devices with only DPP (2.61%) or CdS (1.35%). External quantum efficiency exceeded 60% at peak wavelengths, confirming efficient exciton generation and charge extraction. Furthermore, electrochemical impedance spectroscopy showed a reduced charge transfer resistance of 238 Ω, while transient photovoltage measurements revealed an extended carrier lifetime of 6.10 μs, indicating minimized recombination losses. These improvements are attributed to favorable energy level alignment, enhanced morphology, and interfacial engineering in the DPP-CdS hybrids. This work demonstrates the potential of combining conjugated organics with tailored inorganic nanostructures to overcome current performance limitations in hybrid photovoltaics and provides a scalable strategy for nextgeneration solar energy materials.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"22 8","pages":"693-705"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147882510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molybdenum disulfide carbon composite material using hydrothermal method as electrode material for supercapacitors 采用水热法制备二硫化钼碳复合材料作为超级电容器的电极材料
4区 材料科学
Chalcogenide Letters Pub Date : 2025-04-14 DOI: 10.15251/cl.2025.224.313
Xiaofeng Guo, Yafeng Zhang, Saiyang Li, Qun Li, Qingju Hao, Xiaoyong Ran, Yanming Zhao
{"title":"Molybdenum disulfide carbon composite material using hydrothermal method as electrode material for supercapacitors","authors":"Xiaofeng Guo, Yafeng Zhang, Saiyang Li, Qun Li, Qingju Hao, Xiaoyong Ran, Yanming Zhao","doi":"10.15251/cl.2025.224.313","DOIUrl":"https://doi.org/10.15251/cl.2025.224.313","url":null,"abstract":"MoS₂ has excellent properties but low conductivity, limiting its use in supercapacitors. Carbon’s high conductivity and stability enhance MoS₂’s electrochemical performance and cycling stability. This study prepared MoS₂/C composites via a one-step hydrothermal method, exploring the effects of solvents and carbon content. Deionized water as a solvent resulted in composites with large specific surface areas and good electrochemical properties. Increasing carbon content improved electrochemical performance, peaking at a glucose content of 0.28 mmol, achieving a specific capacitance of 202.6 F/g. However, excessive carbon content led to decreased performance.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"22 4","pages":"313-330"},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/cl.2025.224.313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhancement efficiency of cadmium selenium solar cell by doping within silver 银内掺杂提高镉硒太阳能电池效率
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.733
M. H. Mustafa, H. M. Ali, G. S. Ahmed, B. H. Hussein
{"title":"Enhancement efficiency of cadmium selenium solar cell by doping within silver","authors":"M. H. Mustafa, H. M. Ali, G. S. Ahmed, B. H. Hussein","doi":"10.15251/cl.2023.2010.733","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.733","url":null,"abstract":"We studied at the morphology, structural setup, and optical characteristics of thin cadmium (CdSe) films a thickness of 250 nm that were created by thermal evaporation over glass, The films exhibited a hexagonal shape were crystalline, and tended to form grains in the (111) crystallographic direction, according to the X-ray diffraction examinations. These characteristics were established using the investigation's findings. Through the use of thin films of CdSe doped with Ag at a concentration of 1.5%, the crystal structure orientations for pure CdSe (25.32, 41.84) and CdSe:Ag (25.39, 41.01) that were both pure as well as those that were doped with silver were both determined. The band gap of the optical spectrum decreased by 1.93–1.81 eV (300–700 nm). This reduced the rate of absorption measuring the current-voltage properties of heterojunctions made from a range of clean and doped materials with an incident electrical power density of (100 mW/cm2 ). The films' hexagonal structure was revealed by the X-ray investigation, and grain development was driven by the (220,111) crystallographic direction.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of structural, morphological and optical properties of Mn+2 doped CdS nanoparticles synthesized at various doping concentration 不同掺杂浓度下Mn+2掺杂CdS纳米颗粒的结构、形态和光学性质研究
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.709
R. Ranjan, C. M. S. Negi, S. K. Choubey, K. P. Tiwary
{"title":"Study of structural, morphological and optical properties of Mn+2 doped CdS nanoparticles synthesized at various doping concentration","authors":"R. Ranjan, C. M. S. Negi, S. K. Choubey, K. P. Tiwary","doi":"10.15251/cl.2023.2010.709","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.709","url":null,"abstract":"Manganese-doped cadmium sulphide semiconductor nanoparticles (CdS: Mn) NPs have been created utilizing a microwave-assisted solvothermal technique at different Mn concentrations (0, 1%, 3%, and 5%). The chemicals utilized for the preparation of Mndoped CdS nanoparticles were sodium sulphide (Na2S.xH2O), manganese chloride (MnCl2.4H2O), and cadmium acetate (CH3COO)2Cd., H2O). To determine the structural dimensions of the generated nanoparticles, the Debye-Scherer equation was used to calculate the average crystallite size at the full-width half maximum (FWHM) of the diffraction peaks. FTIR spectra analysis was used to look at the various functional and vibrational groups present in the Mn-doped CdS nanoparticle sample. The structure features of the produced nanoparticles have been examined using X-ray diffraction patterns. Energy dispersive X-rays were employed to ascertain the chemical composition of the synthesized nanoparticles. The optical properties and quantification of the energy band gap of the nanoparticles have been done using UV-V spectroscopy. According to XRD calculations, the cubic zinc-blend structure of the generated NPs had a crystal size of between 4 and 7 nm. By using EDX spectroscopy, the incorporation of Mn at the CdS lattice was confirmed.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of deposition voltage on tribological properties of W-WS2 coatings deposited by electrospark deposition 沉积电压对电火花沉积W-WS2涂层摩擦学性能的影响
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.741
T. X. Liu, C. A. Guo, F. S. Lu, X. Y. Zhang, L. Zhang, Z. J. Wang, Z. Y. Xu, G. L. Zhu
{"title":"Influence of deposition voltage on tribological properties of W-WS2 coatings deposited by electrospark deposition","authors":"T. X. Liu, C. A. Guo, F. S. Lu, X. Y. Zhang, L. Zhang, Z. J. Wang, Z. Y. Xu, G. L. Zhu","doi":"10.15251/cl.2023.2010.741","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.741","url":null,"abstract":"Electrospark deposition coatings were prepared with different deposition voltage on CrNi3MoVA steel substrates by using a W-WS2 sintered electrode and their tribological properties were investigated. The microhardness, roughness and tribological properties of the coatings were tested by using Vickers hardness tester, confocal laser scanning microscope and tribometer, and the morphologies, composition and phase structure were obtained by utilizing scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS) and X-ray diffraction(XRD). The results showed that with the increase of deposition voltage, the hardness and roughness of the coatings increase. The coatings remarkably increase the tribological properties of CrNi3MoVA steel, and among the three coatings deposited at 40 V, 60 V and 80 V, the coating deposited at 60 V has the smallest friction coefficient and the best wear resistance.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"61 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nucleation and growth study of SnS nanostructures prepared by electrodeposition method 电沉积法制备SnS纳米结构的成核与生长研究
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.753
A. Nouri, D. Dekhil, H. Guessas
{"title":"Nucleation and growth study of SnS nanostructures prepared by electrodeposition method","authors":"A. Nouri, D. Dekhil, H. Guessas","doi":"10.15251/cl.2023.2010.753","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.753","url":null,"abstract":"SnS nanostructures were prepared using the electrodeposition technique in aqueous solutions containing 0.1M of SnSO4 and Na2SO4. Three concentrations (0.05M, 0.10M, and 0.15M) of Na2SO4 were tested. The electrodeposition of SnS nanostructures on ITO substrates was investigated by cyclic voltammetry, chronoamperometry, SEM microscopy, and X-ray diffraction techniques. The concentration-dependent nucleation and growth mechanisms of electrodeposited SnS were analyzed using current transients. For the concentrations (0.05M and 0.10 M), the SnS films follow 3D growth in instantaneous nucleation mode. For a concentration of 0.15M, the SnS films start with progressive nucleation before switching to the instantaneous nucleation mode. The SnS nanostructures produced were found to be polycrystalline with an orthorhombic structure. XRD measurement shows that the preferred orientation of SnS nanostructures is in the (111) and (101) directions for the lower concentrations. SEM images reveal the 3D growth model of the samples, which is consistent with the electrochemical analysis.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal conductivity and lattice dynamics of thermoelectric oxychalcogenide BiCuTeO 热电性氧硫族化合物BiCuTeO的热导率和晶格动力学
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.697
M. Guenfoud, M. Hamouda
{"title":"Thermal conductivity and lattice dynamics of thermoelectric oxychalcogenide BiCuTeO","authors":"M. Guenfoud, M. Hamouda","doi":"10.15251/cl.2023.2010.697","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.697","url":null,"abstract":"Recently, BiCuTeO is considered as one of the promising thermoelectric materials due to its ultra-low thermal conductivity. For this reason, the thermoelectric characteristic of this material has been studied to evaluate the lattice thermal conductivity (𝜅𝜅𝐿𝐿) from firstprinciples calculations which are based on solving linearized Boltzmann transport equations (LBTE) through the relaxation time (RTA) approximation. These calculations are used to predict the behavior of phonons in order to understand the origin of the ultralow thermal conductivity of BiCuTeO. The lattice thermal conductivity of BiCuTeO is reproduced with high accuracy. Our calculations predict that BiCuTeO announces a strong anharmonicity, which is the cause of the very low value of the thermal conductivity. This results in very high group speeds. Moreover, the calculations of the elastic properties, dielectric constants, phonon group velocities, lifetimes, and Grüneisen parameters shows that the lattice thermal conductivity exhibits an obvious anisotropy.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Retraction notice: Optimization of chemical bath deposited CdSSe thin films 撤回通知:化学浴沉积CdSSe薄膜的优化
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.751
M. A. Jafarov, E. F. Nasirov, V. Mammadov, S. A. Jahangirova
{"title":"Retraction notice: Optimization of chemical bath deposited CdSSe thin films","authors":"M. A. Jafarov, E. F. Nasirov, V. Mammadov, S. A. Jahangirova","doi":"10.15251/cl.2023.2010.751","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.751","url":null,"abstract":"","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Steady-state and transient photocurrents of As-S-Sb-Te amorphous thin films As-S-Sb-Te非晶薄膜的稳态和瞬态光电流
4区 材料科学
Chalcogenide Letters Pub Date : 2023-11-10 DOI: 10.15251/cl.2023.2010.725
O. V. Iaseniuc, M. S. Iovu
{"title":"Steady-state and transient photocurrents of As-S-Sb-Te amorphous thin films","authors":"O. V. Iaseniuc, M. S. Iovu","doi":"10.15251/cl.2023.2010.725","DOIUrl":"https://doi.org/10.15251/cl.2023.2010.725","url":null,"abstract":"In the present work some nanostructured quaternary chalcogenides of the As-S-Sb-Te system have been investigated by a photoelectric method. The spectral distribution of steadystate photocurrent Iph=(λ) and the relaxation curves of photocurrent Iph=(t) were registered at positive and negative polarity of the applied voltage to the top Al illuminated electrode. In the spectral distribution of steady-state photocurrent, for the amorphous thin films As1.17S2.7Sb0.83Te0.40, As1.04S2.4Sb0.96Te0.60, As0.63S2.7Sb1.37Te0.30, and As0.56S2.4Sb1.44Te0.60 in the wavelength range λ=0.50÷0.92 mm (2.48÷1.35 eV) some maxima were detected, which are the result of the presence of binary clusters As2S3, Sb2S3 and Sb2S3. The photovoltaic method was used to obtain the value of the band gap width, which was about Eg =1.41 eV.","PeriodicalId":9710,"journal":{"name":"Chalcogenide Letters","volume":"56 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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