CAJ | 학술논문

采用草酸铌和KOH 为原料，加入少许水研磨至干燥后得到前躯体，前躯体在500℃焙烧3 h合成了铌酸钾粉末。红外光谱分析结果表明，在研磨过程中，原料之间发生了离子交换作用，有 NH3被释放出来。以铌酸钾粉末为光催化剂，在紫外灯照射下，对亚甲基蓝溶液进行光催化降解实验，结果表明，光催化3h后，亚甲基蓝的降解率达到90%。
채용초산니화KOH 위원료，가입소허수연마지간조후득도전구체，전구체재500℃배소3 h합성료니산갑분말。홍외광보분석결과표명，재연마과정중，원료지간발생료리자교환작용，유 NH3피석방출래。이니산갑분말위광최화제，재자외등조사하，대아갑기람용액진행광최화강해실험，결과표명，광최화3h후，아갑기람적강해솔체도90%。
Potassium Niobate was obtained by grinding the mixture of niobium formate and potassium hydroxide and small amount of water,then dried at room temperature,and finally calcined at 500 ℃ for 3 h .It can be seen from the Infrared spectroscopy that an ion-exchange reaction occurred and NH3 was released during grinding.As-synthesized potassium niobate powders were used to degrade methylene blue solution under irradiation of UV,and found that the catalyst showed better photocatalytic properties,and the degradation ratio reaches to 90% after 3 h reaction.