Cesium Tungstate Applied for Energy-saving Glass Thermal Insulating Coating

Cesium tungstate applied for preparing energy-saving glass thermal insulating coating is a near infrared shielding material with the formula of Cs0.33WO3 and high purity of 99.9%. Also, Cs0.33WO3 is known as a photothermal agent.

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Some experts prepared an antibacterial continuous flow microreactor by sequential mussel-inspired surface engineering of microchannels by using catechol-grafted poly (N-vinylpyrrolidone) and immobilization of near-infrared active Cs0.33WO3 nanoparticles inside the polydimethylsiloxane(PDMS)-based microreactors. And it was found that excellent phothothermal antibacterial activity over 99.9% was accomplished toward Gram-positive and -negative bacteria upon near-infrared irradiation during continuous operation up to 30 days. This was achieved without releasing Cs0.33WO3 nanoparticles from the surface of the microchannels, confirming the robust immobilization of photothermal agents through the mussel-inspired chemistry. It is worth to note that the cleaning of used microreactors was easily attainable by simple acid treatment to release immobilized photothermal agents from the surface of the microchannels, enabling efficient recycling of used microreactors.

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