Due to the coronavirus problem in 2020, lot of antibiotic compounds such as tetracycline (TC) have been used and discharge into water, leading to environment and human heal problem. Thus, preparing new catalysts for tetracycline removal have become a significant challenge in the areas of environmental engineering. Here we provide advanced photocatalyst based on sulfur (S) doped carbon nitride (CN) for treatment of TC. The characterization results confirmed that S doping reduced the recombination rates of electrons and holes, improved light absorption behavior. Under solar light the removal of TC just required only 30 mins and the degradation efficiency was 98.7%. S doped CN was able to degrade TC from different wastewaters with a maximum degradation efficiency of 93.8%. Furthermore, S-CN can be recycled multiple times, indicating it is suitable photocatalyst to solve the problem of antibiotic contamination in wastewaters.

由于2020年的冠状病毒问题，许多抗生素化合物（例如四环素）已被使用并排放到水中，从而导致环境和人类健康问题。因此，制备用于去除四环素的新催化剂已经成为环境工程领域中的重大挑战。在这里，我们提供了基于硫（S）掺杂的氮化碳（CN）的先进光催化剂，用于TC的处理。表征结果证实，S掺杂降低了电子和空穴的复合率，改善了光吸收性能。在太阳光下，仅需30分钟即可去除TC，降解效率为98.7％。S掺杂的CN能够降解不同废水中的TC，最大降解效率为93.8％。此外，S-CN可以多次回收，