Department of Process Engineering and Petrochemical, Faculty of Technology, University of El Oued, 39000, El Oued, Algeria.
Laboratory of Biotechnology Biomaterials and Condensed Matter, Faculty of Technology, University of El Oued, 39000, El Oued, Algeria.
Environ Sci Pollut Res Int. 2023 Apr;30(19):57076-57085. doi: 10.1007/s11356-023-26422-6. Epub 2023 Mar 17.
The novel synthesis of MgO from Laurus nobilis L. leaves was prepared using the green synthesis method. It is using direct blending process to decorate MgO/PEG nanocomposite to enhance the photodegradation properties and examine its physical properties using diverse characterization techniques, including XRD, FTIR, SEM, EDX, and UV-Vis. X-ray diffraction reveals a cubic phase of MgO with a 37-nm grain size. SEM images confirm spherical nanoparticles with a diameter size of 22.9 nm. The optical energy gap of MgO NPs was 4.4 eV, and the MgO/PEG nanocomposite was 4.1 eV, which made it an efficient catalyst under sunlight. The photocatalytic activity of Rose Bengal (RB) and Toluidine Blue (TB) dyes at 5 × 10 mol/l dye concentration indicates excellent degradation efficiencies of 98% and 95% in 120 min, respectively, under sunlight irradiation. MgO/PEG is an excellent candidate nanocomposite for applications of photodegradation and could be used for its potential capability to develop conventionally used techniques.
采用绿色合成法，从月桂叶中新型合成氧化镁。它使用直接混合工艺来修饰 MgO/PEG 纳米复合材料，以增强光降解性能，并使用多种特性化技术（包括 XRD、FTIR、SEM、EDX 和 UV-Vis）检查其物理性质。X 射线衍射显示氧化镁具有 37nm 粒径的立方相。SEM 图像证实了具有 22.9nm 直径的球形纳米粒子。MgO NPs 的光学能隙为 4.4eV，MgO/PEG 纳米复合材料为 4.1eV，这使其成为阳光照射下的高效催化剂。在 5×10-5mol/L 染料浓度下，Rose Bengal（RB）和 Toluidine Blue（TB）染料的光催化活性分别在 120 分钟内显示出 98%和 95%的优异降解效率。MgO/PEG 是一种用于光降解应用的优秀候选纳米复合材料，可用于开发常规技术的潜在能力。
