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    Boosting CO2-to-C2H4 electrocatalysis on Cu2O with waste-derived porous carbon from coconut shells
    (Royal Society of Chemistry, 2026) Qin, C; Li, T; Masakorala, G; Zhi, C; Huang, H; Zhou, C; Wang, X; Shen, B; Zhang, Jian-Rong; Zhou, Y
    This study presents a sustainable strategy to boost CO2-to-C2H4 conversion by constructing Cu–C interfaces using Cu2O nanospheres supported on porous carbon derived from waste coconut shells. The Cu2O–10mgC catalyst achieves a 4-fold increase in FE(C2H4) compared with Cu2O and maintains >40% selectivity for 45 h. In situ spectra reveal enhanced *COLFB coverage, confirming that oxygen-rich functional groups at the Cu–C interface promote C–C coupling. This work demonstrates both the catalytic and economic feasibility of waste-derived carbon supports for efficient CO2-to-C2H4 conversion.
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    A comparison study of removing Rhodamine B from waste water by functionalized natural and synthetic porous carbon.
    (Faculty of Humanities and Sciences - SLIIT, 2021-03-26) Ranchagoda, R.A.S.S.; Jayaruk, T.C.
    Textile industry discharge a huge amount of dye containing waste water which pollutes water, soil and also have adverse effect on human health, animal and plant. Approximately 10 - 15% of the synthetic dyes is released into the industrial waste, causing serious environmental problem, flora and fauna of aquatic ecosystem. It causes contamination of surface water, accumulation of toxic and carcinogenic substances in water. Rhodamine B is widely used in industrial purposes. However, the organic dyes will cause serious environmental and biological problems. Thus the removal of dye from water is a great challenge and a pressing task. Various porous carbon materials were applied to remove organic dye materials such as Rhodamine B from wastewater. Synthetic porous carbon was synthesized through the sol-gel method and carbonization process and naturally abundant waste materials like Rice husk and Coconut husk available at low cost were used as functionalized porous carbon materials which were obtained from slow pyrolysis process. According to the FT-IR, SEM and adsorption analysis adsorption capacities of these porous carbon materials were determined for Rhodamine B. HNO3 treated porous carbon materials were expressed positive results for absorptivity of RhB.