Sharma Aditi, Bhardwaj Upasana, Jain Devendra, Kushwaha Himmat Singh
Materials Research Centre, Malaviya National Institute of Technology Jaipur (MNITJ), Jaipur 302017, India.
Department of Molecular Biology and Biotechnology, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, India.
ACS Omega. 2022 Feb 22;7(9):7595-7605. doi: 10.1021/acsomega.1c06109. eCollection 2022 Mar 8.
In the present work, ferroelectric sodium niobate (NaNbO) nanorods are formulated to attain photopiezocatalysis for water pollutant degradation and bacterial disinfection. NaNbO nanorods, integrating the advantages of photocatalysis (generation of free charge carriers) and piezocatalysis (separation of these charge carriers), possess synergistic effects, which results in a higher catalytic activity than photocatalysis and piezocatalysis alone. Active species that are involved in the catalytic process are found to be O < OH < h, indicating the significance of piezocatalysis and photocatalysis. The degradation efficiency of sodium niobate (NaNbO) nanorods for Rhodamine B in the presence of both sunlight and ultrasonic vibration is 98.9% within 60 min ( = 7.6 × 10 min). The piezo potential generated by NaNbO nanorods was reported to be 16 V. The antibacterial activity of the produced sample was found to be effective against Escherichia coli. With inhibitory zones of 23 mm, sodium niobate has a greater antibacterial activity.
在本研究中，制备了铁电铌酸钠（NaNbO）纳米棒以实现用于水污染物降解和细菌消毒的光压电催化。铌酸钠纳米棒兼具光催化（产生自由电荷载流子）和压电催化（分离这些电荷载流子）的优点，具有协同效应，这导致其催化活性高于单独的光催化和压电催化。参与催化过程的活性物种被发现为O ＜ OH ＜ h，这表明了压电催化和光催化的重要性。在阳光和超声振动同时存在的情况下，铌酸钠（NaNbO）纳米棒对罗丹明B的降解效率在60分钟内（= 7.6 × 10分钟）为98.9%。据报道，铌酸钠纳米棒产生的压电势为16 V。发现所制备样品的抗菌活性对大肠杆菌有效。铌酸钠的抑菌圈为23 mm，具有更强的抗菌活性。
