Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Rd, Nanshan District, Shenzhen, Guangdong, 518055, PR China; Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong, 518055, PR China.
Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China; Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China.
Chemosphere. 2021 Jan;262:127885. doi: 10.1016/j.chemosphere.2020.127885. Epub 2020 Aug 10.
In recent years, research on graphene oxide (GO) has developed rapidly in both academic and industrial applications such as electronic, biosensor, drug delivery, water treatment and so forth. Based on the large amount of applications, it is anticipated that GO will inevitably find its own way to the environment, if used are not restricted to prevent their release. Environmental transformation is an important transformation process in the natural environment. In this review, we will summarize the recent developments on environmental transformation of GO in the aquatic environment. Although papers on environmental transformation of graphene-based nanomaterials can be found, a systematic picture describing photo-transformation of GO (dividing into different irradiation sources), environmental transformation of GO in the dark environmental, the environmental toxicity of GO are still lacking. Thus, it is essential to summarize how different light sources will affect the GO structure and reactive oxygen species generation in the photo-transformation process, how GO will react with various natural constituents in the aquatic environment, whether GO will toxic to different aquatic organisms and what will be the interactions between GO and the intracellular receptors in the intracellular level once GO released into the aquatic environment. This review will arouse the realization of potential risk that GO can bring to the aquatic environment and enlighten us to pay attention to behaviors of other two-dimensional GO-like nanomaterials, which have been intensively applied and studied in recent years.
近年来，氧化石墨烯（GO）在电子、生物传感器、药物输送、水处理等学术和工业应用领域的研究迅速发展。基于大量的应用，预计如果不加以限制以防止其释放，GO 将不可避免地进入环境。环境转化是自然环境中的一个重要转化过程。在这篇综述中，我们将总结近年来 GO 在水环境中的环境转化的最新进展。尽管可以找到关于基于石墨烯的纳米材料环境转化的论文，但仍缺乏系统地描述 GO 光转化（分为不同的辐射源）、GO 在黑暗环境中的环境转化、GO 的环境毒性的论文。因此，总结不同光源如何影响光转化过程中 GO 的结构和活性氧的生成、GO 将如何与水生环境中的各种天然成分发生反应、GO 是否会对不同水生生物产生毒性以及一旦 GO 释放到水生环境中，GO 将如何与细胞内受体在细胞内水平相互作用是至关重要的。这篇综述将引起人们对 GO 可能给水生环境带来的潜在风险的认识，并启发我们注意近年来得到广泛应用和研究的其他二维 GO 类似纳米材料的行为。
