H. Guan^*, J. X. Xu, Z. Y. Yang, X. Y. Qian, M. Q. Zhao

Chalcogenide Letters, Vol.21, No.2, pp. 169-173, 2024, DOI:10.15251/CL.2024.212.169

Abstract Cu₂MgSnS₄ (CMTS) nanoparticles are successfully prepared via a solvothermal approach. X-ray diffraction (XRD) and Raman reveal that pure zinc-blende CMTS phase is obtained. Scanning electron microscopy (SEM) shows that CMTS nanoparticles exhibit microsphere structure. The band gap of as-obtained CMTS nanoparticles is calculated to be 1.68eV, indicating a potential candidate for tandem solar cells. The degradation rate of methylene blue (MB) with under visible-light irradiation is about 87%, indicating that CMTS can be useful for effective visible-light photocatalyst. More >

A. N. Abouelkhir^a,*, E. R. Shaaban^b,c, M. Tag El-Dine^a, K. I. Hussain^d, I. S. Yahia^e

Chalcogenide Letters, Vol.21, No.2, pp. 161-168, 2024, DOI:10.15251/CL.2024.212.161

Abstract Cadmium sulfide was prepared by first turning it into a powder, which was then used to evaporate heat to create thin films. Additionally, the spray pyrolysis method was used to produce films of cadmium sulfide. A structural comparison using the crystallize size and lattice parameters. Furthermore for the prepared samples, an analysis of their optical characteristics was conducted through measurements of absorbance, transmission, and reflection, resulting in the determination of the energy gap. More >

M. Boonkam, P. Tamdee, P. Tongying^*

Chalcogenide Letters, Vol.21, No.4, pp. 335-342, 2024, DOI:10.15251/CL.2024.214.335

Abstract This work presents a facile hydrothermal synthesis method for fabricating a multifunctional composite of copper zinc tin sulfide (CZTS) nanoparticles coated onto sepiolite fibers. Morphological analysis confirms the firm attachment of approximately 10 nm CZTS nanoparticles onto the sepiolite surface. Elemental analysis verifies the presence of constituent elements from both CZTS and sepiolite, with a slight deficiency in Cu and an abundance of Zn observed. The compositional formula of CZTS in the composite is estimated as Cu_1.93Zn_1.05Sn_0.98S_4.04. Notably, the material exhibits a narrow band gap of 1.5 eV, enabling effective utilization of the entire visible light More >

G. Hao^*, J. Y. Shen, Y. L. Sun, K. Xu, Y. F. Wang

Chalcogenide Letters, Vol.21, No.10, pp. 765-770, 2024, DOI:10.15251/CL.2024.2110.765

Abstract In the present work, flower-like Cu₂SrSnS₄ (CSTS) sample is successfully prepared by solvothermal method. The XRD and Raman analysis confirm that pure CSTS phase with trigonal structure is obtained. The band gap of as-obtained CSTS naocrystals is estimated to be 1.49eV. The removal of methylene blue (MB) within 100min under simulated solar light irradiation is around 90%, depicting that CSTS is a potential material for effective solar light photocatalytic application. Meanwhile, The Seebeck coefficient and electrical conductivity of CSTS material can reach to 128.57μV•K^-1 and 20.35S·m^-1 at 675K, respectively, indicating its potential for thermoelectric application. More >

Z. Khan^a, A. D. Khalid^b,*, M. I. Khan^c, B. Parveen^a, Ihab M. Moussa^d, M. S. Hassan^e, N.-ur-Rehman^f, A. K. Khan^f, S. Mumtaz^g

Chalcogenide Letters, Vol.21, No.11, pp. 933-943, 2024, DOI:10.15251/CL.2024.2111.933

Abstract The three samples of SnS with different molarity 1ml, 0.5ml and 0.25ml were prepared by hydrothermal method. The prepared samples were characterized by XRD, SEM and impedance spectroscopies. XRD confirmed the cubic and orthorhombic structure of SnS. The average size of nanoparticles was noted to be about 12.77 nm, 16.43 nm and 16.44 nm at 140 °C. These nanoparticles were of cubic and orthorhombic forms. Average strain came out to be 0.215, 0.142 and 0.140. This result shows that by changing molarity, crystal structure of SnS can be changed. Crystallite size is increasing with decreasing… More >

T. Hesabizadeh^a, R. Subedi^a, T. J. Webster^b,c,d, G. Guisbiers^a,*

Chalcogenide Letters, Vol.21, No.11, pp. 847-854, 2024, DOI:10.15251/CL.2024.2111.847

Abstract Amorphous selenium nanoparticles have been synthesized by pulsed laser ablation in liquids. After undergoing a thermal treatment at 121°C for 60 minutes, the amorphous nanoparticles crystallized into trigonal ones. The antimicrobial properties of both amorphous and trigonal nanoparticles have been compared; and the amorphous ones displayed better antibacterial and antifungal properties compared to the trigonal ones. Specifically, Methicillin-resistant Staphylococcus aureus (MRSA), Ampicillin-resistant Escherichia coli, Pseudomonas aeruginosa, Staphylococcus epidermidis, and Candida albicans were almost completely inhibited in the presence of amorphous selenium nanoparticles at 0.025 microgram/ml concentrations after 24 hours of in vitro culture, compared to controls (no nanoparticles). In summary, More >

R. A. Ulwali^*, N. K. Abbas

Chalcogenide Letters, Vol.21, No.12, pp. 1011-1020, 2024, DOI:10.15251/CL.2024.2112.1011

Abstract Pure zinc sulfide nanoparticles and doped with silver (0.5,1,1.5,2.5, and 3.5) % wt. were prepared by green method. The structural properties were studied using X-ray diffraction technology(XRD). The diffraction patterns showed the particles were crystalline and had a zinc-blend structure with different average grain size. The surface topography was investigated by Scanning Electron Microscope (FE-SEM), it was found the shape is spherical and had different nanosized. Chemical purity was studied using Energy Dispersive X-ray Spectroscopy(EDX), the results showed the appearance of basic elements (Zn, S) and silver. The results of Fourier Transform Infrared Spectroscopy(FTIR) showed More >

A. S. Ahmed^*, A. B. Sharba, Q. M. Salman

Chalcogenide Letters, Vol.21, No.12, pp. 989-999, 2024, DOI:10.15251/CL.2024.2112.989

Abstract This work presents the synthesis and characterization of Homophase CdS and Heterophase Fe/CdS nanoparticles prepared by pulsed laser ablation (PLA) in water and methanol using nanosecond duration Nd:YAG laser. The morphology, the crystalline state, and the structure of the products were examined by performing SEM, XRD, and FTIR measurements, respectively. The results showed the transformation of the crystalline phase and changing the clustering size of CdS nanoparticles when performing PLA in methanol and water. Fe/CdS Heterojunctions were obtained in both liquids. The presence of Fe nanoparticle imposed another phase transformation and significantly improved the aggregation More >

AMOURA M. ABOU-EL-NAGA¹, SHAKER A. MOUSA², FAYEZ ALTHOBAITI³, EMAN FAYAD^3,*, ENGY S. FAHIM¹

BIOCELL, Vol.48, No.12, pp. 1835-1837, 2024, DOI:10.32604/biocell.2024.054569 - 30 December 2024

Abstract This article has no abstract. More >

Abdul Ghafoor¹, Maria Latif², Shafaqat Ali^2,3,*, Muhammad Munir^4,*, Muhammad Naeem Sattar⁵, Mohammed Ali Alshehri⁶

Phyton-International Journal of Experimental Botany, Vol.93, No.11, pp. 2683-2705, 2024, DOI:10.32604/phyton.2024.055898 - 30 November 2024

Abstract Heavy metal pollution in agricultural soils is a significant challenge for global food production and human health with the increasing industrialization and urbanization. There is a concern about introducing innovative techniques that are eco-friendly, cost-effective, and have the potential to alleviate metals, enhance crop growth, and protect plants against various environmental threats. For this, nanotechnology is one of the promising solutions having various applications in almost every field of life. This review explores various nano-based strategies that use nanoparticles (NPs) to lessen the harmful effects that heavy metals have on plants. Incorporated literature including published… More >