Qi Jie, Kong Dechao, Liu Danyang, Pan Lun, Chen Ying, Zhang Xiangwen, Zou Ji-Jun
Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University Tianjin 300072 China
Collaborative Innovative Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China.
RSC Adv. 2019 May 20;9(27):15629-15634. doi: 10.1039/c9ra02105a. eCollection 2019 May 14.
Bismuth vanadate photoanode has shown great potential for photoelectrochemical (PEC) catalysis, but it needs to be further modified because of its relatively low charge-separation efficiency and poor stability. Herein, the bimetallic phosphide NiCoP decorated Mo-BiVO is fabricated through the electrodeposition and drop-casting method, which significantly improves the charge separation and surface oxidation reaction. Therefore, the fabricated NiCoP/Mo-BiVO photoanode exhibits a low onset potential of 0.21 V ( RHE) and high photocurrent of 3.21 mA cm at 1.23 V ( RHE), which is 3.12 times higher than that of pure BiVO. Importantly, the decoration of NiCoP significantly improve the stability of BiVO photoanode.
钒酸铋光阳极在光电化学（PEC）催化方面展现出了巨大潜力，但由于其相对较低的电荷分离效率和较差的稳定性，仍需进一步改性。在此，通过电沉积和滴铸法制备了双金属磷化物NiCoP修饰的Mo-BiVO，这显著改善了电荷分离和表面氧化反应。因此，制备的NiCoP/Mo-BiVO光阳极在1.23 V（RHE）时具有0.21 V（RHE）的低起始电位和3.21 mA cm的高光电流，这比纯BiVO的光电流高3.12倍。重要的是，NiCoP的修饰显著提高了BiVO光阳极的稳定性。
