Heterogeneous electro-Fenton catalyst as well as preparation method and application thereof

• Main Authors: LI AIYUAN, SUN XIANGDONG, QIAN YIYUAN, CHEN BIFEN, ZHAO WENJIE, MA QIANWEN, WU XUEDONG, ZHANG HUIBO, ZENG ZHIXIANG
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of wastewater treatment, and particularly relates to a heterogeneous electro-Fenton catalyst and a preparation method and application thereof. According to the method, the granular activated carbon is used as a carrier and impregnated in the mixed solution of the ferric salt and the weak organic acid by utilizing the ultrasonic reaction, so that the iron ions are loaded on the activated carbon, the method is simple in process, strong acid and high-temperature roasting processes are avoided, and the prepared catalyst is high in catalytic efficiency, simple to recycle and wide in application prospect; compared with a common constant-temperature oscillation load, the heterogeneous electro-Fenton catalyst disclosed by the invention is better in stability. 本发明属于废水处理技术领域，具体涉及一种非均相电芬顿催化剂及其制备方法和应用及其制备方法和应用。本发明利用超声反应，以粒状活性炭为载体，在铁盐与弱有机酸的混合溶液中浸渍，实现了铁离子在活性炭上负载，该方法工艺简单、避免了强酸和高温焙烧过程，制备的催化剂催化效率高，回收简单，具有广阔的应用前景，与常见的恒温振荡负载相比，本发明非均相电芬顿催化剂稳定性能更好。