Photocatalytic inactivation has been proved to be an effective strategy to eliminate pathogenic bacteria in water. Herein, a novel 0D/2D p-n heterojunction of Ag2S-anchored P-doped g-C3N4 (Ag2S/PCN) were constructed by a simple two-step process coupling one-pot calcination and ultrasonic-assisted synthesis. The photocatalytic performance of as-prepared Ag2S/PCN composites was investigated by inactivating multidrug-resistant E. coli under visible light irradiation. The results indicated that Ag2S/PCN-5 possessed outstanding photocatalytic inactivation activity and superior stability, which could completely inactivate 7.0-log E. coli cells within 60 min. The enhanced photocatalytic activity of Ag2S/PCN-5 was mainly attributed to the elevated visible-light response and improved production and transfer of photoexcited charges. In addition, the free radicals trapping experiments results revealed that h+ and •O2− were predominantly responsible for the efficient inactivation activity. Finally, according to the 0D/2D structure and energy band configuration analysis, the enhanced p-n type heterojunction photocatalytic inactivation mechanism of Ag2S/PCN was discussed in detail.

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As virtual technology develops, it holds greater potential of application in different educational sectors, and computer-assisted interpreter training is no exception. While the last decade has witnessed development and implementation of VR-mediated interpreter education projects, more empirical evidence is still lacking and therefore warrants the academia’s attention. This pilot study intends to find out users’ experience, opinions about the affordances and challenges of a desktop VR training platform in the context of business interpreting. A mixed-methods approach was used integrating data from both close-ended and open-ended questions. Results showed that users held largely positive and converging views about the VR interpreting experience, in terms of the ingenuity, sense of presence, and the effectiveness of the platform in improving a variety of interpreters’ competence. Users also pointed out several challenges, such as equipment, design, physiological effects but the opinions were quite diverging.

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