摘要
通过在高温下碳化木质素磺酸钠然后经过酸洗制备了一种硫掺杂分级多孔碳催化剂,使用XRD、SEM、TEM、XPS、BET等方法对其结构进行了表征,并测定其活化过硫酸盐降解双酚A(BPA)的性能和机理。结果表明,制备的催化剂性能较强,在5 min内去除效率接近100%,该催化剂的pH范围为3~9,重复循环利用6次后仍保持高活性,其机理主要是通过催化分解过硫酸盐产生单线氧来降解双酚A。
A sulfur-doped hierarchical porous carbon catalyst was prepared by carbonizing sodium lignosulfonate at high temperature and then pickling. Its structure was characterized by XRD, SEM, TEM, XPS, BET, etc. Properties and mechanism of sulfate degradation of bisphenol A(BPA). The results show that the prepared catalyst has strong performance, and the removal efficiency is close to 100% within 5 min. The pH range of the catalyst is 3 to 9, and the catalyst still maintains high activity after being recycled for 6 times. The mechanism is mainly through catalytic decomposition of persulfuric acid. The salt generates singlet oxygen to degrade BPA.
作者
杨岱
Yang Dai(School of Chemical Engineering and Pharmacy Wuhan Institute of Technology,Wuhan 430205,China)
出处
《广东化工》
CAS
2022年第23期64-68,共5页
Guangdong Chemical Industry
