In this demonstration, conductive carbon (CC)/BiOBr composite photocatalysts were prepared by a one-pot solvothermal approach. The CC/BiOBr composites were studied by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD) and scanning electron microscope (SEM), high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), UV-Vis diffusion reflectance spectrometry (DRS) and low-temperature electron paramagnetic resonance (EPR) spectra. The presence of CC inhibits the growth of BiOBr, heightens the specific surface area of BiOBr and photoactivated carriers separation, creates rich oxygen vacancies (OVs), rooting in the powerful effect between CC and BiOBr. Photocatalytic abilities of CC/BiOBr composites for degradation of rhodamine B (RhB) under simulated solar light irradiation were evaluated. The consequences display that CC/BiOBr composites show better photocatalytic degradation performance than the pure BiOBr for elimination of RhB. The separation and transfer mechanism of photoactivated electron-hole pairs of CC/BiOBr was discussed.

在此演示中，通过一锅溶剂热法制备了导电碳（CC）/ BiOBr复合光催化剂。CC / BiOBr复合材料由Brunauer-Emmett-Teller（BET），X射线衍射（XRD）和扫描电子显微镜（SEM），高分辨率透射电子显微镜（HRTEM），X射线光电子能谱（XPS）， UV-Vis扩散反射光谱（DRS）和低温电子顺磁共振（EPR）光谱。CC的存在抑制BiOBr的生长，增加BiOBr的比表面积和光活化载流子分离，产生丰富的氧空位（OVs），这根源于CC和BiOBr之间的强大作用。评估了CC / BiOBr复合材料在模拟太阳光照射下对若丹明B（RhB）降解的光催化能力。结果表明，CC / BiOBr复合材料在消除RhB方面比纯BiOBr具有更好的光催化降解性能。探讨了CC / BiOBr的光活化电子-空穴对的分离和转移机理。