Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, 44000, Pakistan.
Department of Chemistry, Fatima Jinnah Women University, Rawalpindi, Pakistan.
Sci Rep. 2022 Jul 19;12(1):12308. doi: 10.1038/s41598-022-16673-7.
Methyl orange (MO) is mutagenic, poisonous, and carcinogenic in nature, hence, effective methods are required for its degradation. We have synthesized pure ZrO, Ag-doped ZrO and Ag-doped ZrO/rGO as hybrid photocatalysts by facile hydrothermal method. These photocatalysts were characterized by powder XRD, scanning electron microscopy, EDX, FTIR, photoluminescence, UV-Vis diffuse reflectance (DRS), and Raman spectroscopy. The photodegradation of MO (10 ppm) was studied with pure ZrO, Ag-doped ZrO and Ag-doped ZrO/rGO (10 mg/100 mL catalyst dosage) photocatalysts at 100 min irradiation time under UV-Visible light. The pH effect and catalyst dosage on photodegradation of MO was investigated. AgZrO/rGO photocatalyst exhibited the maximum photocatalytic degradation of MO (87%) as compared to AgZrO (60%) and pure ZrO (26%). Reusability experiments ensured the excellent stability of photocatalyst after five consecutive experiments. To the best of our knowledge, this is the first report on the facile hydrothermal synthesis of AgZrO/rGO photocatalyst for photocatalytic degradation of methyl orange.
甲橙（MO）具有诱变、毒性和致癌性，因此需要有效的方法来降解它。我们通过简便的水热法合成了纯 ZrO、Ag 掺杂 ZrO 和 Ag 掺杂 ZrO/rGO 作为杂化光催化剂。这些光催化剂通过粉末 X 射线衍射（XRD）、扫描电子显微镜（SEM）、能谱（EDX）、傅里叶变换红外光谱（FTIR）、光致发光（PL）、紫外可见漫反射（DRS）和拉曼光谱进行了表征。在 100 分钟的光照时间内，使用纯 ZrO、Ag 掺杂 ZrO 和 Ag 掺杂 ZrO/rGO（10mg/100mL 催化剂用量）光催化剂，研究了 MO（10ppm）的光降解。考察了 pH 值和催化剂用量对 MO 光降解的影响。与 AgZrO（60%）和纯 ZrO（26%）相比，AgZrO/rGO 光催化剂对 MO 的光催化降解率最高（87%）。重复使用实验确保了光催化剂在五次连续实验后的优异稳定性。据我们所知，这是首次报道使用简便的水热法合成 AgZrO/rGO 光催化剂用于光催化降解甲橙。
