Photocatalytic degradation of dyes by AgBr/Ag3PO4 and the ecotoxicities of their degraded products
作者:Pongsaton Amornpitoksuk、Sumetha Suwanboon
DOI:10.1016/s1872-2067(15)61078-6
日期:2016.5
between AgNO3 and precipitating agent solutions that were prepared by adjusting the amount of H3PO4 in the Na3PO4 solutions. The Ag3PO4 powders prepared from the precipitation solution with a pH of 6 showed the highest photocatalytic activity for decolorizing the methylene blue and rhodamine B dyes. These Ag3PO4 powders were further modified by the addition of KBr solutions to obtain AgBr/Ag3PO4 powders and
Ag3PO4 粉末是通过 AgNO3 和沉淀剂溶液之间的沉淀反应制备的,沉淀剂溶液是通过调节 Na3PO4 溶液中 H3PO4 的量制备的。由 pH 为 6 的沉淀溶液制备的 Ag3PO4 粉末对亚甲蓝和罗丹明 B 染料的脱色显示出最高的光催化活性。这些Ag3PO4粉末通过添加KBr溶液进一步改性得到AgBr/Ag3PO4粉末,这些光催化剂可以将阴离子染料脱色为活性橙和甲基橙。使用适当的清除剂评估参与光催化降解过程的反应性物质的抑制活性。光催化后,质谱证实染料被降解为更小的分子。