摘要
以棉浆废液为生物质炭源,采用水热法制备出生物质炭掺杂的BiOBr(C-BiOBr)。利用X射线粉末衍射仪、X射线光电子能谱仪、扫描电子显微镜、紫外可见分光光度计等对产物的构效关系进行分析。结果表明:C-BiOBr对罗丹明B溶液的降解率达98.56%,为BiOBr降解率的2.8倍;对盐酸四环素的光降解率达90.4%,为BiOBr降解率的1.6倍。在循环实验中,5次循环后C-BiOBr对罗丹明B的降解依旧能达到88.3%。机理研究结果证明光生空穴和超氧自由基为光催化降解的主要活性物种。所制备的C-BiOBr拥有良好的光催化活性和稳定性,在废水处理中有着潜在的应用前景。
Using cotton pulp waste liquid as a biomass charcoal source,a biomass charcoal doped BiOBr(C-BiOBr)was prepared by a hydrothermal method.The product was analyzed to clarify its structure-function relationship using X-ray powder diffractometer,X-ray photoelectron spectroscope,scanning electron microscope,and ultraviolet-visible spectrophotometer.The results showed that the degradation rate of Rhodamine B solution by C-BiOBr could reach 98.56%,which is 2.8 times that of BiOBr.The photodegradation rate of tetracycline hydrochloride reached 90.4%,which is 1.6 times that of BiOBr.In the cyclic experiment,the degradation of Rhodamine B could still reach 88.3%after 5 cycles.Subsequent mechanism research results proved that photo-generated holes and superoxide radical were the main active substance for photocatalytic degradation.As-synthesized C-BiOBr exhibited good photocatalytic activity and stability,and has potential application prospects in wastewater treatment.
作者
顾杰
李双硕
崔天伊
颜菀旻
赵俭波
姜建辉
GU jie;LI Shuangshuo;CUI Tianyi;YAN Yumin;ZHAO Jianbo;JIANG Jianhui(Key Laboratory of Chemical Engineering in Southern Xinjiang,School of Chemistry and Chemical Engineering,Tarim University,Alar 843300,China)
出处
《聊城大学学报（自然科学版）》
2025年第1期68-75,共8页
Journal of Liaocheng University:Natural Science Edition
基金
兵团财政科技计划项目(2022DB025)
塔里木大学校长基金项目(TDZKCX202208)资助。
