Abstract
Global concerns have been excited by burgeoning electromagnetic pollution and climate change. Paying attention to building materials is one of the best ways to refine electromagnetic pollution and save energy. Herein, a practical nanocomposite has been introduced that not only absorbs microwaves, but also plays a significant role in energy‐saving. Interestingly, the approach related to the selection of a simple experimental procedure, cost‐effective substrates, and building matrix develops the practical applications of the eventual product. Initially, graphite‐like carbon nitride (g‐C3N4) nanosheets are tailored using a conventional sintering route, and then the prepared nanosheets are ornamented by zinc sulfide (ZnS) nanoparticles through a facile hydrothermal scenario. Remarkably, the microwave and optical features of the tailored ZnS/g‐C3N4 nanocomposite are modulated by regulating the mass fraction of ZnS into 2D structures. Interestingly, a novel defecting agent is used to boost the dielectric characteristics of g‐C3N4 through an innovative complementary hydrothermal and combustion scenario. Eventually, the architected structures are blended with gypsum plaster to evaluate energy‐saving and microwave‐absorbing performance. The nanocomposites fabricated by ZnS/defected g‐C3N4/gypsum plaster as building materials have significant microwave‐absorbing and infrared reflection capacity. The presented research opens a new vista for simultaneous development of advanced functional materials for energy‐saving and microwave absorption.
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