Water Pollution Research Department, National Research Centre, 33 El Buhouth St, Dokki, Giza, 12622, Egypt.
Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 El Buhouth St, Dokki, Giza, 12622, Egypt.
Environ Sci Pollut Res Int. 2022 Nov;29(51):77238-77252. doi: 10.1007/s11356-022-20932-5. Epub 2022 Jun 8.
Water decontamination from toxic dyes and pathogenic microorganisms is critical for life on Earth. Herein, we report the synthesis of sulfone biscompound containing 1,2,3-triazole moiety and evaluation of its dye decolorization and biocidal and disinfection efficiencies. The decolorization efficiency was tested under different experimental conditions, while the biocidal action was examined against various types of waterborne pathogens, and the disinfection of some pathogenic microbes was executed in artificially contaminated water. The findindgs illustrated that the solution initial pH (pH) affected the decolorization efficiency significantly. About complete removal of 10 mg/L malachite green (MG) dye was achieved after 10 min using 3 g/L of the sulfone biscompound at pH 6. The pseudo-second-order equation suited the adsorption kinetics accurately, while the equilibrium data was suited by Langmuir isotherm model. Electrostatic, n-π, and π-π interactions brought about the adsorption of MG onto the sulfone biscompound. The biocidal results indicated that the sulfone biscompound had a powerful antibacterial potential against the tested bacterial species. Likewise, the distinction trail revealed that after 70-90 min of direct contact with an effective dose, the tested pathogens could be completely eliminated (6-log reduction). Overall, the newly synthesized sulfone biscompound can efficiently remove cationic dyes and disinfect contaminated water.
从有毒染料和致病微生物中净化水对于地球上的生命至关重要。在此，我们报告了一种含有 1,2,3-三唑部分的砜双化合物的合成及其对染料脱色、杀菌和消毒效率的评价。在不同的实验条件下测试了脱色效率，同时考察了对各种类型的水传播病原体的杀菌作用，并在人工污染的水中对一些致病微生物进行了消毒。结果表明，溶液初始 pH 值（pH）对脱色效率有显著影响。在 pH 6 下，使用 3 g/L 的砜双化合物 10 分钟后，可完全去除 10 mg/L 的孔雀石绿（MG）染料。准二级动力学方程准确拟合了吸附动力学，而平衡数据则适合 Langmuir 等温线模型。静电、n-π 和 π-π 相互作用导致 MG 吸附到砜双化合物上。杀菌结果表明，该砜双化合物对测试的细菌具有强大的抗菌潜力。同样，区分试验表明，在与有效剂量直接接触 70-90 分钟后，测试的病原体可以被完全消除（6 对数减少）。总的来说，新合成的砜双化合物可以有效地去除阳离子染料并消毒受污染的水。
