Tavker Neha, Gaur Umesh Kumar, Sharma Manu
School of Nano Sciences, Central University of Gujarat, Sector 30, Gandhinagar 382030, India.
Department of Physics, National Institute of Technology, Jalandhar, Punjab 144011, India.
ACS Omega. 2019 Jul 8;4(7):11777-11784. doi: 10.1021/acsomega.9b01054. eCollection 2019 Jul 31.
Agro-waste-extracted cellulose-supported CuInS nanocomposites were hydrothermally synthesized with significant photocatalytic activity under the influence of cellulose as a polymeric natural support that offers delay in electron-hole life. Delayed recombination process of electrons and holes was perceived by parting of cellulose as a barrier or edge during photochemical reaction, which overall enhances the lifetime of photocatalyst. The photodegradation efficiency over five consecutive cycles along with scavenging studies have been examined for RhB dye under visible light. The boosted photodegradation rate was observed at an optimum amount of cellulose (200 mg), which is ∼10 times higher than pristine CuInS.
以农业废弃物提取的纤维素为载体，水热合成了负载型CuInS纳米复合材料，在纤维素作为聚合物天然载体的影响下，该复合材料具有显著的光催化活性，纤维素可延长电子-空穴寿命。在光化学反应过程中，纤维素作为屏障或边缘起到了分离作用，从而实现了电子和空穴的延迟复合过程，总体上提高了光催化剂的寿命。在可见光下，对RhB染料进行了连续五个循环的光降解效率以及清除研究。在纤维素最佳用量（200 mg）时观察到光降解速率提高，比原始CuInS高约10倍。
