期刊论文

Visible light photocatalytic reduction of U(Ⅵ)in water by tea waste biochar/g-C3N4 composites

中文

材料工程

1001-4381

2023

51

05

165-173

10.11868/j.issn.1001-4381.2021.000925

国家自然科学基金项目(52170164)；

本校为第一机构

以茶渣为原料,三聚氰胺为前驱体,采用高温热聚合法制得茶渣生物炭/石墨相氮化碳(TBC/g-C3N4)复合材料。采用SEM,XRD,XPS,UV-Vis DRS,PL和EIS对光...展开更多 以茶渣为原料,三聚氰胺为前驱体,采用高温热聚合法制得茶渣生物炭/石墨相氮化碳(TBC/g-C3N4)复合材料。采用SEM,XRD,XPS,UV-Vis DRS,PL和EIS对光催化剂的形貌、结构及光电特性进行表征,研究TBC/g-C3N4复合材料在可见光照射下光催化还原U(Ⅵ)的性能,并探讨TBC/g-C3N4复合材料光催化还原U(Ⅵ)的机理。结果表明:当TBC的质量分数为5%,初始pH值为4,催化剂用量为1 g/L时,可见光照射30 min后TBC/g-C3N4复合材料对U(Ⅵ)的去除率可达99.64%,远高于g...

Tea waste biochar/graphitic carbon nitride(TBC/g-C3N4)composites were prepared by high temperature thermal polymerization with tea waste as raw material and melamine as precursor.The morphology,structure and photoelectric characteristics of the pho...MORE Tea waste biochar/graphitic carbon nitride(TBC/g-C3N4)composites were prepared by high temperature thermal polymerization with tea waste as raw material and melamine as precursor.The morphology,structure and photoelectric characteristics of the photocatalysts were characterized by SEM,XRD,XPS,...