Abstract Zinc oxide (ZnO) powders were synthesized by solution combustion route using various amounts of dodecyltrimethylammonium bromide (DTAB)-citric acid mixed fuel. The structural, microstructural, optical and photocatalytic properties of ZnO powders were analyzed by modern characterization methods. Single phase ZnO powders with wurtzite structure were crystallized at all fuel contents. The ZnO powders had a foamy microstructure with the high specific surface area of 371 m2/g at higher fuel contents. The increase of band gap energy from 3.11 to 3.18 eV with the increase of fuel contents was attributed to the reduction of particle size. The adsorption capacity and photodegradation of methylene blue (MB) dye increased from 5 to 40 % and 95 to 100 %, respectively, with fuel contents.

中文翻译：

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DTAB与柠檬酸混合燃料溶液燃烧合成ZnO粉体的光催化活性

摘要 采用不同用量的十二烷基三甲基溴化铵（DTAB）-柠檬酸混合燃料，通过溶液燃烧法合成了氧化锌（ZnO）粉末。通过现代表征方法分析了 ZnO 粉末的结构、微观结构、光学和光催化性能。具有纤锌矿结构的单相 ZnO 粉末在所有燃料含量下都结晶。ZnO 粉末具有泡沫状微观结构，在较高的燃料含量下具有 371 m2/g 的高比表面积。随着燃料含量的增加，带隙能量从 3.11 eV 增加到 3.18 eV 归因于颗粒尺寸的减小。随着燃料含量的增加，亚甲基蓝 (MB) 染料的吸附容量和光降解率分别从 5% 增加到 40% 和 95% 到 100%。