(183ac) The Synthesis of Zeolites with High Specific Surface Area and Their Application in VOCs Adsorption Removal

Volatile organic compounds (VOCs) are typical components that may cause serious air pollution. There are many types of VOCs purification methods. Adsorption is one of the most promising candidates due to the advantages of low cost and high efficiency. In recent years, rotary concentrator combined with regeneration thermal oxidizer (RTO) or regeneration catalytic oxidizers (RCO) has attracted increasing attention due to its high purification efficiency. Zeolites are the core materials of the rotary concentrator, which have uniform pore structure, large specific surface area, and have shown a significant potential in the field of gas adsorption. It is worth noting that zeolites with large pore volume and high specific surface area are ideal candidate as various VOCs adsorbent. Selecting a cheap and readily available structure-directing agent to synthesize zeolite, and change the morphology of zeolite to enlarge the specific surface area and pore volume. In addition, according to the VOCs with different polarity, changing the amount of surface hydroxyl groups by structure directing agent and increase the adsorption amounts of VOCs. Overall, the future trends of zeolites with large pore volume and high specific surface area VOCs removal technology are proposed.