CAJ | 학술논문

采用纳米 Fe3 O4作为催化剂，H2 O2为氧化剂，组成多相类 Fenton 试剂，与微波联合处理罗丹明 B（Rh B）染料废水。反应在300W 微波反应器中进行，系统研究了 H2 O2浓度，Fe3 O4用量，反应时间，反应温度及催化剂循环使用等条件对罗丹明 B 脱色率的影响。结果表明，在 pH 值为4，罗丹明 B 浓度为100 mg/ L，反应温度为80℃，反应时间为5min，H2 O2用量为5.0 mL/ L，Fe3 O4用量为1.25 g/ L 时，微波辅助条件下罗丹明 B 脱色率达到100％。此外，催化剂六次循环实验表明，磁性催化剂非常稳定，可重复使用，且易回收。实验表明微波加热与 Fe3 O4/ H2 O2类 Fenton 反应的联合产生了良好的协同效果，该联合工艺可大大提高废水中有机物的处理效果。
채용납미 Fe3 O4작위최화제，H2 O2위양화제，조성다상류 Fenton 시제，여미파연합처리라단명 B（Rh B）염료폐수。반응재300W 미파반응기중진행，계통연구료 H2 O2농도，Fe3 O4용량，반응시간，반응온도급최화제순배사용등조건대라단명 B 탈색솔적영향。결과표명，재 pH 치위4，라단명 B 농도위100 mg/ L，반응온도위80℃，반응시간위5min，H2 O2용량위5.0 mL/ L，Fe3 O4용량위1.25 g/ L 시，미파보조조건하라단명 B 탈색솔체도100％。차외，최화제륙차순배실험표명，자성최화제비상은정，가중복사용，차역회수。실험표명미파가열여 Fe3 O4/ H2 O2류 Fenton 반응적연합산생료량호적협동효과，해연합공예가대대제고폐수중유궤물적처리효과。
Microwave assisted degradation of rhodamine B(Rh B)waste water was investigated by heterogeneous Fenton like reagent method using Fe3 O4 nanoparticles as the catalyst and H2 O2 as oxidant. The main factors influencing the decoloration of Rh B in the microwave reactor were optimized systematically such as hydrogen peroxide concentration, Fe3 O4 dosage,reaction time and reaction temperature,and the recycle test was also investigated. The results show that under the optimal conditions,i. e. pH value of 4,Rh B concentration of 100 mg/ L,reaction temperature of 80℃,reaction time of 5 min,H2 O2 dosage of 5. 0 mL/ L and Fe3 O4 dosage of 1. 25 g/ L,the decoloration of Rh B can reach 100% . Moreover,six cyclic tests for Rh B degradation showed that the magnetic catalyst was very stable,recoverable,highly active,and easy to separate using an external magnet. Thus,the microwave and Fenton - like combined process showed a good synergy effect on the Rh B degradation,and this process can promote the treatment effect of organic waste water greatly.