Morphology-tunable synthesis of ZnO microstructures under microwave irradiation: formation mechanisms and photocatalytic activity

摘要: The morphologies and surface conditions of ZnO microstructures have been controlled facilely via a microwave-assisted one-pot synthetic route by varying the ammonia concentration reaction mixture. Ammonia affects nucleation, growth, hydrolysis kinetics zinc glycerolate intermediate to induce shape variation from flower-like various twin with preferred exposure ± (0001) polar planes. as-prepared are mesoporous, as they large specific areas high pore volumes that resulted fast microstructures. Owing novel features microwaves, numerous microcracks wrinkles on their surfaces show characteristic defect-driven orange emission, whose intensity increases area. photocatalytic degradation rate constant rhodamine B our prepared has found increase linearly area, volume, polar-surface exposure. Our simple rapid method is considered be beneficial development morphology-controlled metal oxides applicable for eco-friendly waste-water treatments.