Photocatalytic degradation of triclosan is one of the most promising way to eliminate triclosan pollution in water, yet it presents profound challenges to develop efficient photocatalysts to meet the demand of application. Herein, we demonstrate a facile hydrothermal-precipitation method to prepare amorphous Nb₂O₅ catalysts by using niobium(V) oxalate hydrate and ammonium carbonate. A series of amorphous Nb₂O₅ catalysts were obtained and analyzed by detail characterizations (XRD, XPS, BET and SEM). By optimizing synthesis conditions, it was found that 180/12-Nb₂O₅-(1:5) catalyst exhibited the optimal photocatalytic activity for triclosan degradation. Furthermore, the pseudo-first-order kinetic equations for triclosan degradation over 180/12-Nb₂O₅-(1:5) catalyst were investigated under conditions with different pH value. Among them, the triclosan degradation rate over 180/12-Nb₂O₅-(1:5) catalyst gave the highest reaction constant k (0.5 min⁻¹) and shortest half-period (t_1/2=0.17 min⁻¹) at pH of 8. The presence of ionic state triclosan in base condition should be responsible for the improved degradation rate from acid to base reaction condition. Compared with molecular triclosan, ionic state triclosan exhibits very high reaction rate with radicals due to its strong electrophilic property. The high photocatalytic activity of 180/12-Nb₂O₅-(1:5) catalyst should be related to the presence of amorphous structure compared with calcined 180/12-Nb₂O₅-(1:5) catalyst with highly crystalline structure. The existence of N species doping and nano-sheet structure in catalyst is also thought to promote the catalytic reaction.

三氯生的光催化降解是消除水中三氯生污染的最有前途的方法之一，但是，开发满足应用需求的高效光催化剂提出了深刻的挑战。在这里，我们演示了一种简便的水热沉淀方法，该方法通过使用草酸铌（V）水合物和碳酸铵制备无定形Nb ₂ O ₅催化剂。获得了一系列无定形Nb ₂ O ₅催化剂，并通过详细表征（XRD，XPS，BET和SEM）进行了分析。通过优化合成条件，发现180 / 12-Nb ₂ O ₅-（1：5）催化剂对三氯生降解表现出最佳的光催化活性。此外，研究了在不同pH值条件下三氯生在180 / 12-Nb ₂ O _5-（1：5）催化剂上降解的拟一级动力学方程。其中，三氯生在180 / 12-Nb ₂ O _5-（1：5）催化剂上的降解速率得到最高的反应常数k（0.5 min ^-1）和最短的半周期（t _1/2 = 0.17 min ^-1）在8的pH值。在碱性条件下存在离子态三氯生应负责提高从酸到碱性反应条件的降解速率。与分子三氯生相比，离子态三氯生具有很强的亲电性能，因此与自由基的反应速率非常高。180/12-Nb的高光催化活性₂ ø ₅ - （1：5）的催化剂应与无定形结构的存在下与煅烧十二分之一百八十零铌相比₂ ø ₅ - （1：5）具有高度结晶催化剂结构体。催化剂中N物种的掺杂和纳米片结构的存在也被认为促进了催化反应。