Graphene oxide based semiconductor photocatalysts for degradation of organic dye in waste water: A review on fabrication, performance enhancement and challenges

Studi Adsorpsi Methylene Blue oleh Graphene Oxide Dengan dan Tanpa Penyinaran Menggunakan Sinar UV-A

“…Kehadiran OH radikal dan radikal superoksida akibar penyinaran diyakini berkontribusi pada penambahan kemampuan GO untuk menurunkan konsentasi MB pada saat proses adsorpsi yang dikenai proses penyinaran. Pada penelitian sebelumnya telah dilaporkan bahwa, senyawa MB yang telah teradsorpsi pada permukaan GO akan diserang oleh OH radikal secara terus menerus sehingga akan terdegradasi menjadi CO2, H2O dan beberapa asam [10].…”

Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

“…There are several recent reviews focused on the photocatalytic activities of graphene nanostructures and their nanocomposites with semiconductor photocatalysts. 45–50 These reviews mainly deal with nanocomposites of graphene nanostructures with metal oxide semiconductors boosting the photocatalytic activities of semiconductors by enhancing the adsorptive properties and accelerating the charge transfer for the coupled photocatalyst system. These reviews are either focused on particular graphene nanostructure-metal oxide composites, their synthesis or on particular applications.…”

“…For example, a review by Jamjoum et al 48 focused on the synthesis of GO/metal oxide nanocomposites, their characterization and the photocatalytic degradation of organic pollutants. Similarly, Vasseghian et al 47 reviewed graphene-based materials for metronidazole degradation, whereas Kausor et al 45 reviewed GO-based semiconductor photocatalysts for the degradation of organic dye in waste water. A review by Mondal et al 49 details the fabrication of rGO/semiconductor nanocomposites for solar-driven multifunctional applications.…”

Nickel Foam@Reduced Graphene Oxide–Carbon Nanotube Composite as an Efficient Solar Evaporator for Water Purification and Electricity Generation

“…1−3 Considerable amount of freshwater is still polluted by organic dyes in the form of industrial effluents, agricultural runoff, and chemical spills, intensifying the freshwater resource crisis. 4,5 Although the earth is covered with water by 70%, around 96.5% is seawater. 6,7 It is therefore key to solving the shortage of freshwater that the separation-purification technology for freshwater from seawater and wastewater should be continuously and studiously developed in the world.…”