Results 61 to 70 of about 16,338 (322)

Evaluating environmental impacts of thorium extraction: A comparative study of solvent and electrosorption technologies using life cycle assessment (LCA)

Cleaner Engineering and Technology
Thorium extraction techniques, such as solvent extraction from monazite and electrosorption techniques from water leach purification (WLP) of radioactive waste residues, are important for thorium recovery, particularly in Malaysia.
Naseem Akhtar, Aznan Fazli Ismail, Marlia Mohd Hanafiah, Syazwani Mohd Fadzil, Sulgiye Park   +4 more
doaj   +1 more source

Hydrometallurgical Recovery of Precious Metals and Removal of Hazardous Metals Using Persimmon Tannin and Persimmon Wastes

Metals, 2015
Novel and environmentally benign adsorbents were prepared via a simple sulfuric acid treatment process using the wastes of astringent persimmon, a type of biomass waste, along with persimmon tannin extract which is currently employed for the tanning of ...
Katsutoshi Inoue, Manju Gurung, Ying Xiong, Hidetaka Kawakita, Keisuke Ohto, Shafiq Alam   +5 more
doaj   +1 more source

PENGARUH KONSENTRASI ZIRKONIUM OKSIKLORID (ZOC), KONSENTRASI ASAM SULFAT, DAN WAKTU PENGENDAPAN TERHADAP KONVERSI PEMBENTUKAN ZIRKONIUM BERBASIS SULFAT (ZBS) [PDF]

, 2012
Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi zirkonium oksiklorid, konsentrasi asam sulfat serta waktu pengendapan terhadap konversi yang dihasilkan pada pembentukan zirkonium berbasis sulfat.
Nadratun , Nikmah
core  

Lumineszenz-Datierung der Löss-Paläoboden-Sequenz in der Kiesgrube Gaul/Weilbach, Südhessen [PDF]

, 2011
A thick Middle and Late Pleistocene loess/palaeosol sequence is exposed at the gravel quarry Gaul located east of Weilbach in the southern foreland of the Taunus Mountains. The loess/palaeosol sequence correlates to the last three glacial cycles.
Frechen, Manfred, Schmidt, Esther Dorothe, Semmel, Arno   +2 more
core   +1 more source

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Analysis of iron-rich hydrochloric acid solutions for uranium, thorium, rare-earth elements and other heavy metals

Journal of Analytical Science and Technology, 2023
A simple solvent extraction method is described for the separation of trace elements including uranium (U), thorium (Th) and rare-earth elements (REEs) from industrially processed iron-rich hydrochloric acid solutions.
Beena Sunilkumar, M. Krishnakumar, A. A. Patwardhan   +2 more
doaj   +1 more source

Efficient Removal of Polyvalent Metal Ions (Eu(III) and Th(IV)) from Aqueous Solutions by Polyurea-Crosslinked Alginate Aerogels

Gels, 2022
The removal of polyvalent metal ions Eu(III) and Th(IV) from aqueous solutions using polyurea-crosslinked calcium alginate (X-alginate) aerogels has been investigated by batch-type experiments under ambient conditions and pH 3.
Efthalia Georgiou, Ioannis Pashalidis, Grigorios Raptopoulos, Patrina Paraskevopoulou   +3 more
doaj   +1 more source

Ultra‐Sensitive Short‐Wave Infrared Organic Photodetectors Enabled by a π‐Conjugation Extended Proquinoid Electron Acceptor

Advanced Functional Materials, EarlyView.
A novel proquinoid‐type electron acceptor, TQC‐4Cl, with an ultra‐narrow bandgap of 1.01 eV and spectral response beyond 1200 nm enables organic SWIR photodetectors. The optimized devices show a high EQE of 13.66% and high specific detectivity over 1012 Jones at 1200 nm under −0.5 V reverse bias with outstanding thermal stability, highlighting their ...
Yeonsu Choi, Se Jeong Park, Seunghyun Oh, Un‐Hak Lee, Seunghyun Rhee, Dong Ryeol Whang, Sein Chung, Juhyoung Jung, Kilwon Cho, Bo Ram Lee, Sung Cheol Yoon, Jae Won Shim, Seo‐Jin Ko   +12 more
wiley   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source

A simple mixed-micelle process for selective microextraction of trace Th(IV) from lanthanide matrices

Frontiers in Water
Prolonged exposure to thorium and its compounds can cause severe and irreversible damage to the bones and the kidneys, highlighting the need for its selective separation from other rare earth elements, particularly uranium.
Yasmeen G. Abou El-Reash, Faisal K. Algethami, Abdullah N. Alotaibi, M. A. Hashem, M. G. Wahba, M. A. Ismail, Basem E. Keshta, Basem E. Keshta, Ahmad Hosseini-Bandegharaei, Ahmad Hosseini-Bandegharaei   +9 more
doaj   +1 more source