CAJ | 학술논문

以工业偏钛酸为钛前驱体,三聚氰胺为氮源,制备了g-C3 N4/TiO2复合光催化剂；用 X 射线衍射(XRD)能谱、X射线光电子(XPS)能谱、傅里叶红外变换光谱(FT-IR)及热重和差示扫描量热分析(TG-DSC)、透射电子显微镜(TEM)、紫外-可见吸收(UV-Vis)光谱、三维荧光(FS)光谱、物理吸附仪(BET)等对催化剂进行了表征。可见光催化实验表明,三聚氰胺与工业偏钛酸质量比为1,500℃煅烧制得的 g-C3 N4/TiO2复合催化剂对亚甲基蓝表现出最佳的光催化活性,300 min内对10 mg/L 亚甲基蓝溶液的降解率达到83%。
이공업편태산위태전구체,삼취청알위담원,제비료g-C3 N4/TiO2복합광최화제；용 X 사선연사(XRD)능보、X사선광전자(XPS)능보、부리협홍외변환광보(FT-IR)급열중화차시소묘량열분석(TG-DSC)、투사전자현미경(TEM)、자외-가견흡수(UV-Vis)광보、삼유형광(FS)광보、물리흡부의(BET)등대최화제진행료표정。가견광최화실험표명,삼취청알여공업편태산질량비위1,500℃단소제득적 g-C3 N4/TiO2복합최화제대아갑기람표현출최가적광최화활성,300 min내대10 mg/L 아갑기람용액적강해솔체도83%。
Graphitic carbon nitride (g-C3 N4 )hybridized TiO2 nanometer materials was prepared by annealing metatitanic acid and melamine.The prepared composites were characterized by X-ray diffraction (XRD),X-ray photoelectron spectroscopy(XPS),Fouriertransform infrared spectroscopy (FT-IR)and thermogravimetric-dif-ferential scanning calorimetry analysis(TG-DSC),transmission electron microscopy(TEM),ultraviolet-visible diffuse reflection spectroscopy (UV-Vis),three-dimensional fluorescence spectroscopy (FS),and the N2 gas adsorption brunauer-emmett-teller method (N2-BET).The catalysis experiment show that the g-C3 N4 hybrid-ized TiO2 composites,which the proportion of melamine and metatitanic acid was 1 and calcined at 500 ℃,ex-hibited higher activity under visible light irradiation,while the photodegradation rate of 10 mg/L methylene blue reached to 83%.