In situ growth of MnO2 on pDA-templated cotton fabric for degradation of formaldehyde

Degradation of formaldehyde (HCHO) in interior decoration has been an urgent issue due to its toxicity nature and potential threats human health. In this work, manganese dioxide nanoparticles (MnO2 NPs) were situ grown on the polydopamine (pDA)-templated cotton fabrics for environmentally friendly HCHO degradation applications. The morphology, elemental composition, crystal structure cotton/pDA/MnO2 characterized by scanning electron microscopy–energy dispersive X-ray spectrum, Fourier transform infrared, diffractometer photoelectron spectroscopy, respectively. as-developed was measured a self-made quartz reactor, stability adsorption evaluated cyclic experiments. results showed that removal efficiency reached 100% within 20 min after three cycles, suggesting as-prepared exhibited good HCHO. development MnO2 NPs coated provides new strategies decoration.