Nitrogen-tuned transition metal Co adatom embedded graphene Original Research Article Chemical Physics Letters, Available online 19 August 2015, Pages Jiang Sun, Jun Qian, Min Zhai, Feng Liu, Chang Qi, Xinzhi Shi, Gaofeng Wang, Rui Xiong, Shuangli Ye
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| Frabrication of efficient visible light activated Cu-P25-graphene ternary composite for photocatalytic degradation of methyl blue Original Research Article Applied Surface Science, Available online 18 August 2015, Pages Zheng Jin, Wubiao Duan, Bo Liu, Xidong Chen, Feihua Yang, Jianping Guo
Graphical abstractThis enhanced photocatalytic activity of multi-doped P25 arises due to the synergistic effect of dopants contribution to improve visible light absorption and increase of the lifetime of photo-generated charge carriers. Plausible mechanism for the photocatalytic degradation of MB on CPG nanocomposite is illustrated in the figure above. Graphene incooperated with TiO2 promotes the formation of Ti-C or Ti-O-C bonds that introduced an additional energy level above the valence band of TiO2. Furthermore, copper and graphene serve as an inhibitor of recombination by trapping electrons to promote charge separation. Simultaneously, doping Cu2+ ions into TiO2 could also induce more oxygen vacancies, which can produce more hydroxyl groups. Finally, the enhanced adsorptivity of π-π interaction between MB and the composite catalyst was as well significant for photocatalytic activity.
 | Enhanced Photoelectrochemical perporties of Graphene nanowalls-CdS composite materials Original Research Article Journal of Alloys and Compounds, Available online 18 August 2015, Pages Xuefen Song, Mingjun Wang, Dapeng Wei, Dun Liu, Haofei Shi, Chenguo Hu, Liang Fang, Wei Zhang, Chunlei Du
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