中文摘要：

用柠檬酸络合法制备了钙钛矿型GdCo1-xSrxO3（X=0．00，0．02，0．04，0．06，0．08）复合氧化物，通过XRD，TEM等手段对所生成纳米晶的物相结构、微观形貌、颗粒大小等进行了表征．结果表明，所合成的颗粒为钙钛矿型纳米晶，球形．通过其对活性艳红X-3B降解对其光催化活性进行了研究，实验结果表明在B位掺杂Sr^2＋后使GdC003的光催化活性明显提高，当X=0．06时，即GdCo1-xSrxO3的光催化活性最佳．

英文摘要：

A series of perovskite type compounds GdCo1-xSrxO3 （x =0.00 , 0.02, 0.04, 0.06, 0.08 ） were prepared by citrate complexing method. The structure, size and appearance of the synthesized nanoparticles were characterized by XRD, TEM. The results show that the as-prepared GdCol.x Srx 03 nanoparticles are perovskite structure and spherical appearance. The photocatalytic activity of GdCo1-xSrxO3 nanoparticles meatured the deg- radation of Reactive Brilliant Red X-3B , the results show that B-site doping can notly improve the photocatalytic activity of GdCoO3 and GdCo.94Sr0.06O3was the best one .