Guo Shenghui, Bao Jianxing, Hu Tu, Zhang Libo, Yang Li, Peng Jinhui, Jiang Caiyi
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, 650093 China ; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093 China ; Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming, 650093 China ; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, No. 253 Xuefu Rd., Kunming, 650093 China.
Nanoscale Res Lett. 2015 Apr 21;10:193. doi: 10.1186/s11671-015-0892-5. eCollection 2015.
The novel porous Ag2CO3 nanorods were facilely synthesized via a one-pot aqueous solution reaction at room temperature. The crystalline phase and size distribution of the nanorods were determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. In addition, the porous feature of nanorods was confirmed by transmission electron microscopy (TEM) and nitrogen adsorption-desorption. The morphology and size of the Ag2CO3 crystal can be regulated via the choice of dispersing agents and adding approaches of reactants. Photocatalytic results show that the porous Ag2CO3 nanorods exhibit excellent photodegradation of rhodamine B (RhB) under visible-light irradiation, particularly the photoactivity performance and stability can be further improved in the presence of sodium bicarbonate (NaHCO3). It is indicated that NaHCO3 can prevent effectively the photocorrosion and promote the probability of electron-hole separation.
新型多孔碳酸银纳米棒通过室温下单釜水溶液反应简便合成。纳米棒的晶相和尺寸分布分别通过X射线衍射（XRD）和扫描电子显微镜（SEM）确定。此外，纳米棒的多孔特征通过透射电子显微镜（TEM）和氮吸附-脱附得以证实。碳酸银晶体的形态和尺寸可通过分散剂的选择和反应物的添加方式来调控。光催化结果表明，多孔碳酸银纳米棒在可见光照射下对罗丹明B（RhB）表现出优异的光降解性能，特别是在碳酸氢钠（NaHCO₃）存在下，光活性性能和稳定性可进一步提高。这表明NaHCO₃能有效防止光腐蚀并促进电子-空穴分离的几率。
