A new germanium-based sulfide, Ba6Cu2FeGe4S16, achieves a band-gap broadening of more than 1 eV relative to CuFeS2. Remarkably, Ba6Cu2FeGe4S16 exhibits excellent comprehensive NLO performance (SHG, 1.5 × AgGaSe2; LDT, 2 × AgGaSe2), satisfying the essential requirements of mid-IR NLO candidates.
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http://dx.doi.org/10.1039/c9cc07288h | DOI Listing |
Food Chem
January 2025
Department of Chemistry, College of Science, University of Sulaimani, Qliasan St., 46002 Sulaymaniyah, Kurdistan region, Iraq. Electronic address:
Chemically-synthesized Nanozymes that are widely used as alternatives to enzymes face challenges such as high precursor costs, complex preparation processes, and limited catalytic efficiency. To overcome these drawbacks, we introduce naturally derived nanozymes, nanomineralzymes, as a promising alternative, offering benefits like affordability, cost-effectiveness, and scalability. Chalcopyrite (CP, CuFeS) was sourced from a mineral deposit, and CP nanoparticles were produced by milling.
View Article and Find Full Text PDFJ Colloid Interface Sci
April 2025
School of Environmental Science and Engineering, Guangzhou University, Guangzhou Higher Education Mega Centre, Guangzhou 510006. PR China.
As a hot issue, the scientific and effective separation and extraction of heavy metal ions from complex industrial effluent deserves wide investigation. Copper is an important valuable heavy metal in industrial wastewater. Selective extraction of copper ion (Cu) from effluent not only alleviates the shortage of resources, but also has economic and social benefits.
View Article and Find Full Text PDFACS Omega
December 2024
Materials Science and Engineering Post-Graduation - Federal University of Campina Grande (UFCG), Campina Grande 58429-900, PB, Brazil.
Thin films of chalcopyrite, CuFeS, are promising candidates for use as absorber layers in photovoltaic cells due to their low band gap and high absorbance. These films are typically deposited in two or three steps, always involving an annealing process. In this work, the CuFeS film was deposited on a glass substrate in a single deposition step using the cathodic cylindrical plasma deposition (CCyPD) technique.
View Article and Find Full Text PDFMaterials (Basel)
November 2024
Department of Materials Science and Engineering, College of Engineering, Korea National University of Transportation, Chungju 27469, Republic of Korea.
The optimal conditions for synthesizing a pure chalcopyrite CuFeS phase were thoroughly investigated through the combination of mechanical alloying (MA) and hot pressing (HP) processes. The MA process was performed at a rotational speed of 350 rpm for durations ranging from 6 to 24 h under an Ar atmosphere, ensuring proper mixing and alloying of the starting materials. Afterward, MA-synthesized chalcopyrite powder was subjected to HP at temperatures between 723 K and 823 K under a pressure of 70 MPa for 2 h in a vacuum.
View Article and Find Full Text PDFChem Commun (Camb)
November 2024
State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
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