Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
Chemosphere. 2022 Mar;290:133228. doi: 10.1016/j.chemosphere.2021.133228. Epub 2021 Dec 10.
Today, a major concern associated with the environment is the water pollution occurred due to the introduction of variety of persistent organic pollutants and residual dyes from different sources (e.g., dye and dye intermediates industries, paper and pulp industries, textile industries, tannery and craft bleaching industries, pharmaceutical industries, etc.) into our natural water resources. Recently, advanced oxidation processes (AOPs) by photocatalyst have garnered great attention as a new frontier promising eco-friendly and sustainable wastewater treatment technology. Utilization of the photocatalytic technology efficiently is significant for cleaner environment. Bismuth based photocatalyst have aroused widespread attention as a visible light responsive photocatalyst for waste water treatment due to their non-toxicity, low cost, modifiable morphology, and outstanding optical and chemical properties. In this review, we have dealt with the research progress on bismuth-based photocatalysts for waste water treatment. However, it seems to give limitation over pristine photocatalysts such as slow migration of charge carriers, charge carrier recombination, low visible light absorption, etc., Various bismuth based photocatalyst and its modifications via doping, heterojunction, Z-scheme etc., are discussed in detail. Further, the strategies adopted to improve the photocatalytic activity of bismuth based photocatalyst to improve the waste water treatment (mostly drugs and dyes) are critically reviewed. Also, we have discussed the bacterial inactivation by bismuth based photocatalyst. Finally, the challenges and future aspects against bismuth based photocatalyst are explored for further research.
如今，与环境相关的一个主要问题是由于各种持久性有机污染物和残留染料从不同来源（例如，染料和染料中间体工业、造纸和纸浆工业、纺织工业、制革和工艺漂染工业、制药工业等）进入我们的天然水资源而导致的水污染。最近，光催化剂的高级氧化工艺（AOPs）作为一种有前途的环保和可持续废水处理技术引起了极大的关注。有效利用光催化技术对于更清洁的环境至关重要。基于铋的光催化剂由于其无毒、低成本、可修饰的形态以及出色的光学和化学性质，作为一种可见光响应光催化剂，已引起人们对废水处理的广泛关注。在这篇综述中，我们讨论了用于废水处理的基于铋的光催化剂的研究进展。然而，它似乎对原始光催化剂（如载流子的缓慢迁移、载流子复合、低可见光吸收等）有一定的限制。详细讨论了各种基于铋的光催化剂及其通过掺杂、异质结、Z 型方案等进行的改性。此外，还批判性地审查了为提高基于铋的光催化剂的光催化活性以改善废水处理（主要是药物和染料）而采用的策略。我们还讨论了基于铋的光催化剂的细菌失活动力学。最后，针对进一步研究探索了基于铋的光催化剂的挑战和未来方向。
