In this study, we synthesized 6%Mn/ZnO by the hydrothermal method as a super-rapid-adsorbent-photocatalyst (SRAP) under visible irradiation. Mn(II) was doped to ZnO so that the band gap of ZnO was decreased to 1.54 eV. The mean of particles size of SRAP was obtained 460.9 nm by DLS analysis. The surface area was 0.488 m²/g obtained from BET plot. The mean and the mode pore diameter were 18.3 and 1.2 nm, respectively. Zeta potential of sample in acidic environment was −0.5 mV. The adsorption mechanism is justified by the Van der Waals forces between positive charge of nitrogen from dye molecules and negative charge of the surface of 6%Mn/ZnO in acidic pH. The maximum experimental adsorption capacity was obtained 30.05 mg/g. The Langmuir model is suitable for describing the adsorption of MO onto the 6%Mn/ZnO and its adsorption kinetics follows pseudo-second-order model. 0.05 g of SRAP removed the colour of the methyl orange (MO) solution (99%) for three min under visible light, and this amount of it had only adsorption of MO in darkness after 10 min. Furthermore, 0.15 g of SRAP dramatically degraded MO and methyl red (MR) for 40 s and 10 min under irradiation, respectively.

在这项研究中，我们通过水热法在可见光辐射下合成了6％Mn / ZnO作为超快速吸附剂光催化剂（SRAP）。Mn（II）掺杂到ZnO中，从而ZnO的带隙减小到1.54 eV。通过DLS分析获得SRAP的平均粒径为460.9nm。表面积为0.488 m ²/ g从BET图获得。平均孔径和众数孔径分别为18.3和1.2 nm。酸性环境下样品的ζ电势为-0.5 mV。在酸性pH下，染料分子中的正电荷与6％Mn / ZnO表面的负电荷之间的范德华力证明了吸附机理的正确性。获得的最大实验吸附容量为30.05 mg / g。Langmuir模型适用于描述MO在6％Mn / ZnO上的吸附，其吸附动力学遵循伪二级模型。0.05 g SRAP在可见光下三分钟消除了甲基橙（MO）溶液（99％）的颜色，并且该量仅在10分钟后在黑暗中吸附了MO。此外，在辐照下40 s和10 min，0.15 g SRAP可显着降解MO和甲基红（MR），