摘要
以Bi(NO_3)_3·5H_2O和Na_3PO_4·12H_2O为原料通过水热法合成了Bi PO_4,用g-C_3N_4分子对其表面修饰,利用超声杂化提高磷酸铋的光催化效率和稳定性。采用X射线衍射仪、红外光谱仪、扫描电镜、透射电镜和比表面积及孔隙度分析仪等对其进行了表征,并在光催化反应装置中模拟可见光条件,对合成的g-C_3N_4/Bi PO_4光催化剂以亚甲基蓝为目标降解物时的催化活性进行了系统的研究。结果表明:在掺杂g-C_3N_4之后,可见光条件下Bi PO_4的光催化活性得到较大程度提升。当g-C_3N_4掺杂量为Bi PO_4的7%时,该复合光催化剂在可见光下的光催化活性最高。
Bi PO_4 was synthesized using Bi(NO_3)_3·5H_2O and Na_3PO_4·12H_2O as starting materials,and then hybridized with g-C_3N_4 to enhance the performance of g-C_3N_4/Bi PO_4.The g-C_3N_4/Bi PO_4 photocatalysts were characterized by XRD,FT-IR,SEM,TEM and BET.The photocatalytic activities were evaluated by the degradation of methylene blue under the visible light in the photocatalytic reaction device.The results show that the visible light photocatalytic activity of Bi PO_4 is greatly enhanced by the hybridization of g-C_3N_4.When the loading amount of g-C_3N_4 is 7% of Bi PO_4,the photocatalytic activity of the composite photocatalyst is optimal under the visible light irradiation.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2018年第S1期50-54,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(21676040)
辽宁省自然科学基金(2015020184)
辽宁省高校杰出青年学者成长计划(LJQ2015013)
中央高校基本科研业务费专项资金(3132016065
3132016341)
