Reliable and affordable access to clean water has posted a threat in rural areas and fast expanding urban centers. Herein, a copper doped MoS₂/Bi₂S₃ photocatalyst is reported for photocatalytic bacterial disinfection. Under the irradiation of a single 18 W energy-saving light bulb, Cu-MoS₂/Bi₂S₃ was able to achieve 100% inactivation of E. coli in 60 min. This high efficiency of Cu-MoS₂/Bi₂S₃ can be attributed to its enhancement of light absorption and rapid electron-hole separation. This work provides a new insight into the potential use of energy efficient light source for water sanitation.

中文翻译：

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低功率可见光照射下掺铜二硫化钼/硫化铋对大肠杆菌的高效光催化消毒

可靠和负担得起的清洁水供应在农村地区和快速发展的城市中心都构成了威胁。在此，报道了铜掺杂的MoS ₂ / Bi ₂ S ₃光催化剂用于光催化细菌消毒。在单个18 W节能灯泡的照射下，Cu-MoS ₂ / Bi ₂ S ₃能够在60分钟内实现100％的大肠杆菌灭活。Cu-MoS ₂ / Bi ₂ S _3的这种高效率可以归因于其增强的光吸收和快速的电子-空穴分离。这项工作为使用节能光源进行水卫生提供了新的见解。