Aggregation of graphene oxide and its environmental implications in the aquatic environment

作     者：Jawad Ali Yang Li Enxiang Shang Xinjie Wang Jian Zhao Muhammad Mohiuddin Xinghui Xia Jawad Ali;Yang Li;Enxiang Shang;Xinjie Wang;Jian Zhao;Muhammad Mohiuddin;Xinghui Xia

作者机构：State Key Laboratory of Water Environment SimulationSchool of EnvironmentBeijing Normal UniversityBeijing 100875China College of Science and TechnologyHebei Agricultural UniversityHuanghua 061100China Department of Environmental SciencesKohsar UniversityMurree 47150Pakistan 

出 版 物：《中国化学快报：英文版》 (Chinese Chemical Letters)

年 卷 期：2023年第34卷第2期

页      面：141-149页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the National Key R&D Program of China (No. 2021YFC3200401) the National Natural Science Foundation of China (Nos. 21677015, 52170024 and 22006031) the Natural Science Foundation of Hebei Province (No. B2019204315) 

主　　题：Graphene oxide Aggregation Colloidal behavior Transport/mobility Toxicity 

摘      要：Graphene oxide(GO) with unique characteristics grasps striking potentials in both academic and industrial applications. After being released into natural waters, the dispersity and stability of GO might be altered by the chemical conditions in the receiving water bodies. In this review, we summarized that the aggregation of GO in aquatic environments is mostly dependent on properties of nanoparticles(size,structure, and functional groups) and complex water chemistry(p H, temperature, light, ionic strength,and dissolved organic matter). The knowledge about the aggregation/stability of GO is still insufficient due to the variations in GO properties and complex system of natural waters. Although studies about environmental transformation of graphene-related materials can be accessed but a systematic study taking into consideration the various factors of GO and aquatic systems responsible for aggregation of GO is still lacking. Therefore, we summarized that GO homoaggregation or heteroaggregation with other solid particles can affect the distribution in different depths of rivers and toxicity toward plankton or benthic organisms. More studies are needed to investigate the stability of GO in the long term, the effect of other nanomaterial on GO aggregation, the alteration of water constituents at different regions/time and its effect on GO aggregation, to understand the transportation and impact of GO in the environment.