Chen Xuan, Li Jin
Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830017, China.
School of Physical Science and Technology, Xinjiang University, Urumqi 830017, China.
Nanomaterials (Basel). 2022 Jun 1;12(11):1898. doi: 10.3390/nano12111898.
With the increasing water pollution, traditional treatments cannot sufficiently remove pollutants, thereby prompting the development of photocatalysts. In this study, ZnO-carbon cloth (CC) and spherical ZnO/CdSe-CC heterostructures with different CdSe loadings were synthesized using an ultrasonic-hydrothermal method on flexible CC. Z20CdSe-CC (ZnO with 20 mg CdSe loaded on CC) exhibited the best visible-light-responsive photocatalytic performance, with approximately 83.5% methylene blue reduced in 180 min. In addition, the degradation efficiency of Z20CdSe-CC was maintained at 70.9% after three cycles in relation to that of the ZnO powder. The synergistic effect of CdSe and CC not only effectively widened the light absorption range of ZnO/CdSe-CC but also further promoted the effective transfer of carriers and realized an efficient photocatalytic degradation process. Therefore, the ZnO/CdSe-CC photocatalytic material with CC as the flexible substrate exhibited high photocatalytic activity and stability in environmental remediation. This provides a design idea for the development of an efficient and flexible photocatalytic material in line with the concept of green chemistry.
随着水污染的日益严重，传统处理方法无法充分去除污染物，从而促使光催化剂的发展。在本研究中，采用超声-水热法在柔性碳布（CC）上合成了ZnO-碳布（CC）以及具有不同CdSe负载量的球形ZnO/CdSe-CC异质结构。Z20CdSe-CC（在CC上负载20 mg CdSe的ZnO）表现出最佳的可见光响应光催化性能，在180分钟内约83.5%的亚甲基蓝被还原。此外，相对于ZnO粉末，Z20CdSe-CC在三个循环后的降解效率保持在70.9%。CdSe与CC的协同作用不仅有效地拓宽了ZnO/CdSe-CC的光吸收范围，还进一步促进了载流子的有效转移，实现了高效的光催化降解过程。因此，以CC为柔性基底的ZnO/CdSe-CC光催化材料在环境修复中表现出高光催化活性和稳定性。这为开发符合绿色化学理念的高效柔性光催化材料提供了一种设计思路。
