Saravanan A, Kumar P Senthil, Srinivasan S, Jeevanantham S, Vishnu M, Amith K Vishal, Sruthi R, Saravanan R, Vo Dai-Viet N
Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
Chemosphere. 2022 Jul;298:134284. doi: 10.1016/j.chemosphere.2022.134284. Epub 2022 Mar 10.
Graphene has excellent unique thermal, chemical, optical, and mechanical properties such as high thermal conductivity, high chemical stability, optical transmittance, high current density, higher surface area, etc. Due to their outstanding properties, the attention towards graphene-based materials and their derivatives in wastewater treatment has been increased in recent times. Different graphene-based materials such as graphene oxides, graphene quantum dots, graphene nanoplatelets, graphene nanoribbons and other graphene-based nanocomposites are synthesized through chemical vapor deposition, mechanical and electrochemical exfoliation of graphite. In this review, the specifics about the graphenes and their derivatives, the synthesis strategy of graphene-based materials are described. This review critically explained the applications of graphene-based materials in wastewater treatment. Graphene-based materials were utilized as adsorbents, electrodes, and photocatalysts for the efficient removal of toxic pollutants such as heavy metals, dyes, pharmaceutics, antibiotics, phenols, polycyclic aromatic hydrocarbons have been highlighted and discussed. Herein, the potential scope of graphene-based material in the field of wastewater treatment is critically reviewed. In addition, a brief perspective on future research directions and difficulties in the synthesis of graphene-based material are summarized.
石墨烯具有优异独特的热、化学、光学和机械性能，如高导热性、高化学稳定性、光学透过率、高电流密度、更大的表面积等。由于其出色的性能，近年来基于石墨烯的材料及其衍生物在废水处理中的关注度不断提高。通过化学气相沉积、石墨的机械和电化学剥离等方法合成了不同的基于石墨烯的材料，如氧化石墨烯、石墨烯量子点、石墨烯纳米片、石墨烯纳米带以及其他基于石墨烯的纳米复合材料。在本综述中，阐述了石墨烯及其衍生物的具体情况以及基于石墨烯的材料的合成策略。本综述批判性地解释了基于石墨烯的材料在废水处理中的应用。基于石墨烯的材料被用作吸附剂、电极和光催化剂，用于高效去除重金属、染料、药物、抗生素、酚类、多环芳烃等有毒污染物，对此进行了重点介绍和讨论。在此，对基于石墨烯的材料在废水处理领域的潜在范围进行了批判性综述。此外，还总结了基于石墨烯的材料未来研究方向的简要展望以及合成过程中的困难。
