Yellow ammonium phosphomolybdate (YAPM), a waste product of all under graduate (UG) chemistry laboratory classes, has been proved to be an efficient adsorbent for environmental application as a cationic ion exchanger. The water insoluble YAPM selectively removes cationic dye molecules from dye contaminated wastewater. Consequently, dye infested YAPM solid is produced with fascinating color but bears altered band gap energy. Dye contaminated yellow APM is regenerated in air oven from the dye infested YAPM solid powder by heat treatment at ~ 300 °C and reused with full potential. So it becomes a solid phase extractant. Robust yellow APM turns to green APM (GAPM) upon UV light exposure because of the hoarded electrons in the basket like Keggin structure of phosphomolybdate (PMo₁₂O₄₀⁻³) moiety, and thereby the dye exchange capability is improved, admirably. Thus, the remediation of dye contaminated wastewater by YAPM has been found to be fruitful by YAPM and more potential dye remediation by GAPM.

黄色磷钼酸铵 (YAPM) 是所有本科生 (UG) 化学实验室课程的废物，已被证明是作为阳离子离子交换剂用于环境应用的有效吸附剂。水不溶性 YAPM 从染料污染的废水中选择性地去除阳离子染料分子。因此，染料侵染的 YAPM 固体产生了迷人的颜色，但带隙能量发生了变化。染料污染的黄色 APM 在空气烘箱中从染料侵染的 YAPM 固体粉末中通过~300°C 的热处理再生，并充分利用。所以它变成了一种固相萃取剂。由于篮子中的电子囤积，如磷钼酸盐 (PMo ₁₂ O ₄₀ ^{-3) 的}Keggin 结构，坚固的黄色 APM 在紫外线照射下变成绿色 APM (GAPM)) 部分，从而令人钦佩地提高了染料交换能力。因此，YAPM 对染料污染废水的修复被认为是卓有成效的，而 GAPM 对染料的修复更有潜力。