A review on an emerging solution to improve indoor air quality: Application of passive removal materials

Acetaldehyde in the indoor environment

“…Krou et al 120 investigated the reactivity between acetaldehyde and cement-based hydrates. An overview of passive removal materials for indoor air pollutants is provided by Shayegan et al 121…”

Ag-promoted Cr/MnO2 catalyst for catalytic oxidation of low-concentration formaldehyde at room temperature

“…At present, the common methods for eliminating indoor formaldehyde include adsorption, photocatalytic degradation, and catalytic oxidation. 4 Among them, the adsorption method is restricted by the saturation of the adsorbent, while photocatalytic degradation is dependent on light and may produce intermediate harmful products. In contrast to other methods, catalytic oxidation technology can efficiently remove indoor formaldehyde without secondary pollution and has become one of the most potential indoor formaldehyde removal methods.…”

Facile Conversion of Polystyrene Waste into an Efficient Sorbent for Water Purification

“…In this context, many water treatment technologies, such as coagulation–flocculation, advanced oxidation, membrane filtration and sorption, have been extensively explored to remove pollutants from water sources [ 4 , 5 , 6 , 7 ]. Of these techniques, sorption is considered to be one of the most promising approaches because of its simplicity and low cost [ 8 , 9 , 10 , 11 , 12 , 13 ]. Since the sorbent plays a key role in the sorption process, developing high-performance sorbents is crucial for the feasibility of applying sorption in water cleanup.…”