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Calcined magnesite as an adsorbent for cationic and anionic dyes: characterization, adsorption parameters, isotherms and kinetics study

Author: Ngulube, T ; Gumbo, JR ; Masindi, Vhahangwele ; Maity, Arjun Date: Oct 2018 The ability of calcined magnesite for Methylene Blue (MB), Direct Red 81 (DR81), Methyl Orange (MO) and Crystal Violet (CV) dye removal was evaluated in this study. The experiments were designed to test the hypothesis that alkaline earth ... Read more
Development of bioconjugated dye-doped poly(styrene-co-maleimide) nanoparticles as a new bioprobe

Author: Swanepoel, Andri ; Du Preez, Ilse ; Mahlangu, T ; Chetty, A ; Klumperman, B Date: Feb 2015 Fluorescent dye-doped poly(styrene-co-maleimide) nanoparticles were synthesised and functionalized with amine groups and avidin and the dye-loading was varied. The nanoparticles showed great potential as bioprobes when conjugated with ... Read more
High-performance aqueous asymmetric electrochemical capacitor based on graphene oxide/cobalt(II)-tetrapyrazinoporphyrazine hybrids

Author: Lekitima, JN ; Ozoemena, KI ; Jafta, CJ ; Kobayashi, N ; Song, Y ; Tong, D ; Chen, S ; Oyama, M Date: 2013 A novel asymmetric electrochemical capacitor (AEC) with high energy and power densities has been developed using a graphene oxide/cobalt(II)tetrapyrazinoporphyrazine composite (GO/CoTPyzPz) as the positive electrode and graphene oxide/carbon ... Read more
Iron(II) tetrakis(diaquaplatinum)octacarboxyphthalocyanine supported on multi-walled carbon nanotube platform: an efficient functional material for enhancing electron transfer kinetics and electrocatalytic oxidation of formic acid

Author: Mamuru, SA ; Ozoemena, KI ; Fukuda, T ; Kobayashi, N Date: Oct 2010 A novel platinum-based macrocycle, iron(II) tetrakis(diaquaplatinum)octacarboxyphthalocyanine (PtFeOCPc), was synthesised and characterised. The heterogeneous electron transfer and electrocatalytic properties of this functional material towards ... Read more
Structural and photo-physical properties of spin-coated poly (3-hexylthiophene) thin films

Author: Motaung, DE ; Malgas, GF ; Arendse, CJ ; Mavundla, SE ; Knoesen, D Date: Jul 2009 Regioregular poly(3-hexylthiophenes) (P3HTs) and its blends were studied regarding their structural and photo-physical properties using fullerene as an electron acceptor material. Photo-physical and structural characteristics of the polymer ... Read more
Synthesis, characterization and photoluminescence properties of Dy3+ -doped nano-crystalline SnO2

Author: Kesavan Pillai, Sreejarani ; Sikhwivhilu, LM ; Hillie, TK Date: 15 Apr 2010 Nano-crystalline of tin oxide doped with varying wt% of Dy3+ was prepared using chemical coprecipitation method and characterised by various advanced techniques such as BET-surface area, Fourier transform infrared spectroscopy, X-ray diffraction, ... Read more

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Browsing by Subject "Materials chemistry"

Browsing by Subject "Materials chemistry"

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