Abstract The structural amendment of a 2D π-conjugated polymeric material (g-C3N4) has been done by a non-metal, i.e. boron to extend its visible light absorption. The boron atom provides a vacant p orbital to relocate π bonds inside the adjacent atomic rings, which annexes the electron mobility in the g-C3N4 sheets and thus obstructs the recombination rate along with extended light absorption. To affirm its photocatalytic performance, experiments were performed to treat real phenolic effluent under natural sunlight through solar-powered continuous flow reactor immobilized with catalyst on its surface. Degradation of phenol was observed to be 81.72 % under slight acidic condition, i.e. pH 5 with 1.5 g/L of chemical oxidant dose and 3 L/h reactor flow rate with boron-doped g-C3N4, whereas with g-C3N4 it was 65.81 %.

中文翻译：

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通过硼掺杂对 2D π 共轭聚合物材料 (g-C3N4) 进行结构改性以延长可见光吸收

摘要 2D π-共轭聚合物材料(g-C3N4) 的结构修改已经通过非金属，即硼来扩展其可见光吸收。硼原子提供了一个空的 p 轨道来重新定位相邻原子环内的 π 键，这会影响 g-C3N4 片中的电子迁移率，从而阻碍复合率以及扩展的光吸收。为了证实其光催化性能，进行了实验，通过在其表面固定有催化剂的太阳能连续流动反应器在自然阳光下处理真正的酚类废水。在弱酸性条件下观察到苯酚的降解率为 81.72%，即 pH 5，化学氧化剂剂量为 1.5 g/L，反应器流速为 3 L/h，掺硼 g-C3N4，而 g-C3N4 降解率为 65.81 %。