【摘要】 为了进一步实现生物质废弃资源的综合利用,以及对废水中污染物的检测,以稻壳粉为原料,在600℃和N2氛围下煅烧完成后使用一步水热法制备了钝化剂修饰的碳量子点,得到荧光为蓝绿光的二酸铵(ACA-CQDs)改性稻壳基碳量子点。采用SEM/EDS、HRTEM、FTIR等现代分析技术对碳量子点进行了理化特性表征,发现二酸铵(ACA-CQDs)量子点可以成功检测水中的Pb(Ⅱ)。建立了一种有效的检测水体中Pb(Ⅱ)简便快速高效的方法。更多还原

【Abstract】 In order to realize the comprehensive utilization of biomass waste resources and the detection of pollutants in waste water, rice husk powder was used as raw material, carbon quantum dots(CQDs)modified with passivator were prepared by one-step hydrothermal method at 600℃ and N2 atmosphere, and the carbon quantum dots(CQDs)on rice husk were modified by ammonium diacid(ACA-CQDs)with fluorescence blue-green light. The physical and chemical properties of carbon quantum dots(CQDs)were characterized by SEM/EDS, HRTEM and FTIR. It is found that ammonium diacid(ACA-CQDs)quantum dots can successfully detect Pb(Ⅱ) in water, and a simple, rapid and efficient method is established for the detection of Pb(Ⅱ)in water.更多还原