Microwave/Microwave discharge electrodeless lamp/Dissolved Oxygen/TiO₂ photocatalyst hybrid system was applied to evaluate the photocatalytic degradation behavior of cimetidine, one of the waste drug components. The effects of microwave intensity, pH and dissolved oxygen (DO) concentration on the reaction rate of cimetidine (CMT) degradation were experimentally evaluated. In addition, the CMT decomposition reactions were compared by the combination of unit technologies of the hybrid system. As the microwave intensity and pH of the aqueous reactant solution increased, the CMT decomposition rate increased, and the DO concentration of the aqueous reactant solution had an optimum efficiency concentration. The highest CMT degradation efficiency was obtained by microwave/microwave discharge electrodeless lamp/TiO₂ photocatalytic hybrid system at pH and DO concentration conditions (pH 10, DO 40 ppm). These results show that operation parameters and combination methods affect hydroxyl radical formation and CMT decomposition reactions on TiO₂ surfaces, and efficient CMT decomposition reactions are formed through optimized hybrid systems. CMT is mineralized to CO₂ and H₂O through chemically active species (superoxide anion radical and hydroxyl radicals) via cimetine sulfoxide, 4-methyl-5-hydroxymethylimidazole, and sulfinyl-containing N-cyano-N',N'-dimethyl-guanidine.

采用微波/微波无极灯/溶解氧/ TiO ₂光催化剂混合体系对西咪替丁（一种废弃药物成分）的光催化降解行为进行了评价。实验评估了微波强度，pH和溶解氧（DO）浓度对西咪替丁（CMT）降解反应速率的影响。另外，通过混合系统的单元技术的组合比较了CMT的分解反应。随着反应物水溶液的微波强度和pH增加，CMT分解速率增加，并且反应物水溶液的DO浓度具有最佳效率浓度。通过微波/微波放电无极灯/ TiO获得最高的CMT降解效率₂在pH和DO浓度条件下（pH 10，DO 40 ppm）的光催化混合系统。这些结果表明，操作参数和组合方法会影响TiO ₂表面的羟基自由基形成和CMT分解反应，并且通过优化的杂化体系可形成有效的CMT分解反应。CMT矿化成CO ₂和H ₂通过化学活性种类（超氧阴离子自由基和羟基自由基）通过cimetine亚砜，4-甲基-5-羟甲基咪唑和N-氰基-N”含亚硫酰基，N'-二甲基- ö胍。