(Al, Ni) co-doped ZnO nanostructures were synthesized by a simple ball-milling method. The samples prepared were extensively characterized using standard techniques. X-ray diffraction analysis confirmed the coexistence of Al and Ni in the ZnO sites. The pollutant photodegradation performances of the materials were assessed by studying the removal of methyl orange and Congo red under visible-light illumination. Of the photocatalysts prepared, 2%Al-2%Ni-ZnO was found to be the most active for pollutant degradation, effecting 100% removal of MO within 30 min under visible-light illumination. This excellent catalytic activity was attributed to the strong absorption of visible light and effective separation of photoinduced charge carriers. In addition, radical-scavenging experiments were conducted to identify the key reactive species formed in the reaction, allowing a mechanistic rationale for the superior photocatalytic activity of 2%Al-2%Ni-ZnO to be proposed.

通过简单的球磨法合成了（Al，Ni）共掺杂的ZnO纳米结构。使用标准技术对制备的样品进行了广泛表征。X射线衍射分析证实了ZnO部位Al和Ni的共存。通过研究可见光照射下甲基橙和刚果红的去除率来评估材料的污染物光降解性能。在制备的光催化剂中，发现2％Al-2％Ni-ZnO对污染物的降解最活跃，在可见光照射下30分钟内可100％去除MO。这种优异的催化活性归因于可见光的强吸收和光诱导电荷载体的有效分离。此外，