根据不同的质量比w(g-C3N4)∶w(TiO2)制备了g-C3N4/TiO2复合吸附剂,并在暗环境下以环丙沙星(CIP)为目标去除物研究了g-C3N4/TiO2的吸附性能。通过X射线衍射仪、扫描电子显微镜、透射电子显微镜分别表征了g-C3N4/TiO2的结构和形貌。结果表明:所制备的g-C3N4/TiO2存在丰富的介孔结构,比表面积为143.5m2/g,总孔容为0.202cm3/g。w(g-C3N4)∶w(TiO2)=1的g-C3N4/TiO2对CIP的吸附效果最好,在pH=6～7区间内,吸附率取得最大值,吸附量随CIP浓度的增加而升高。
G-C3N4/TiO2 composite adsorbents were prepared according to different mass ratio w(g-C3N4)∶w(TiO2).The adsorption properties of g-C3N4/TiO2 were studied by using ciprofloxacin (CIP) as the target in dark room.The structure and morphology of g-C3N4/TiO2 were respectively characterized by X ray diffractometer,scanning electron microscope and transmission electron microscope.The results showed that the prepared g-C3N4/TiO2 adsorbents possessed abundant mesoporous structure with a specific surface area of 143.5m2/g,a total pore volume of 0.202cm3/g.The g-C3N4/TiO2 sample of w(g-C3N4)∶w(TiO2)=1 demonstrated the best adsorption effect on the CIP,the adsorption rate reached the maximum in the range of pH=6～7,and the adsorption amount rised with the increasing of the CIP concentration.
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