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Large-Scale Preparation of g-C3N4 Porous Nanotubes with Enhanced Photocatalytic Activity by Using Salicylic Acid and Melamine
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-01-08 , DOI: 10.1021/acs.iecr.9b04761 Lan Jia 1 , Xiangxiang Cheng 1 , Xiaona Wang 1 , He Cai 1 , Pan He 1 , Jingyi Ma 1 , Linli Li 1 , Yong Ding 1 , Xiaoxing Fan 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-01-08 , DOI: 10.1021/acs.iecr.9b04761 Lan Jia 1 , Xiangxiang Cheng 1 , Xiaona Wang 1 , He Cai 1 , Pan He 1 , Jingyi Ma 1 , Linli Li 1 , Yong Ding 1 , Xiaoxing Fan 1
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Graphitic carbon nitride (g-C3N4) nanotubes were produced by using salicylic acid-mediated melamine successfully. The obtained long g-C3N4 nanotube possesses a large specific surface area and a parallel channel structure. Salicylic acid and its decomposition products present in g-C3N4 influenced its formation process and inhibited the crystal growth of g-C3N4. A possible mechanism is proposed: Salicylic acid and its decomposition products facilitated the formation of g-C3N4 nanosheet, and then the nanosheet coiled to form a nanotube. The tube-like structure facilitates the increase in photocatalytic activities, which are 6.7 and 2.4 times that of pristine g-C3N4 in 2-propanol decomposition and CO2 photoreduction, respectively. The enhanced photocatalytic performance was contributed by the large specific surface area, better photogenerated charge carrier transmission, and the porous nanotube structure. This research provides an easy synthetic method for the large-scale production of g-C3N4 nanotubes applied in the photocatalytic field.
中文翻译：
水杨酸和三聚氰胺大规模制备光催化活性增强的gC 3 N 4多孔纳米管
利用水杨酸介导的三聚氰胺成功制备了石墨化的氮化碳（gC 3 N 4）纳米管。所得的长gC 3 N 4纳米管具有大的比表面积和平行的通道结构。gC 3 N 4中存在的水杨酸及其分解产物影响其形成过程，并抑制gC 3 N 4的晶体生长。提出了一种可能的机制：水杨酸及其分解产物促进了gC 3 N 4的形成。纳米片，然后将纳米片盘绕以形成纳米管。管状结构促进了光催化活性的增加，在2-丙醇分解和CO 2光还原中，光催化活性分别是原始gC 3 N 4的6.7和2.4倍。较大的比表面积，更好的光生电荷载流子传输和多孔纳米管结构有助于提高光催化性能。该研究为大规模生产用于光催化领域的gC 3 N 4纳米管提供了一种简便的合成方法。
更新日期：2020-01-08
中文翻译：
水杨酸和三聚氰胺大规模制备光催化活性增强的gC 3 N 4多孔纳米管
利用水杨酸介导的三聚氰胺成功制备了石墨化的氮化碳（gC 3 N 4）纳米管。所得的长gC 3 N 4纳米管具有大的比表面积和平行的通道结构。gC 3 N 4中存在的水杨酸及其分解产物影响其形成过程，并抑制gC 3 N 4的晶体生长。提出了一种可能的机制：水杨酸及其分解产物促进了gC 3 N 4的形成。纳米片，然后将纳米片盘绕以形成纳米管。管状结构促进了光催化活性的增加，在2-丙醇分解和CO 2光还原中，光催化活性分别是原始gC 3 N 4的6.7和2.4倍。较大的比表面积，更好的光生电荷载流子传输和多孔纳米管结构有助于提高光催化性能。该研究为大规模生产用于光催化领域的gC 3 N 4纳米管提供了一种简便的合成方法。
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