目前光催化技术处理四环素污水存在光电转换效率低致使矿化时间长，毒性基团脱除无优先性和选择性；光催化材料易被毒性基团和中间产物（如羰基化合物）毒化而失活，致使活性及循环利用率大大降低；矿化产物CO32-无利用排放等问题。针对上述问题，基于前期研究成果，本项目以四环素作为研究对象，围绕高效且稳定MoS2/磷酸盐类复合光催化材料的精准可控构建，抗生素毒性基团的选择性快速脱毒和提速矿化率以提高有价能源获取率等关键点；构建活性位丰富兼具高自由基产率的MoS2/磷酸盐类复合光催化材料，增效电子密度；设计并搭建低位阻原子级别微界面，实现光生载流子在时间和空间上的高效分离，提高光电转换效率并增速电子界面迁移。以量子理论化学计算为指导，调控催化剂高效晶面和毒性基团的电子云结构的完全匹配，提速毒性基团的优先脱除提；改变自由基进攻四环素碳骨架上的位点，规避毒性中间产物的生成，协同促进降解矿化与CO2能源化进程。

At present, there are existing some key problems in the application of photocatalytic technology to treat tetracycline wastewater: long antibiotic mineralization process because of low photoelectric conversion efficiency, non-selectivity of toxic groups; activity and recycling rate greatly reduced because photocatalysts are easily poisoned by toxic groups and intermediates (such as carbonyl compounds); the mineralized products (CO32-) emission with uselessness. In view of the above problems, based on our previous research results, the project uses tetracycline wastewater as the research object, targeting on the controllable construction of the highly efficient and stable MoS2/phosphate composite photocatalyst, the selective detoxification of antibiotic toxic groups and Speed up mineralization rate to increase the rate of access to valuable energy and other key points; constructing MoS2/phosphate composite photocatalyst with rich active sites and high free radical yield, synergism of electron density; designing and building atomic level micro-interface with low resistance to realize efficient separation of photogenerated carriers in time and space, improve photoelectric conversion efficiency and increases electronic interface migration. Guided by quantum theoretical chemical calculations, the detoxification of the toxic group is preferential and accelerated by matching electron cloud structure of the crystal plane in the catalyst and toxic group; the formation of toxic intermediates is avoided by changing the free radicals attack the sites on the carbon skeleton of the antibiotic organic matter, and the mineralization of antibiotic and CO2 energyization process is synergistically promoted.