Graphene-based materials receive attention in the field of energy and environmental application. The unique physiochemical assets such as the high surface area, high thermal stability, chemical flexibility, high electron mobility and mechanical solidity make it a highly versatile material for different applications. In this critical review, the application of graphene-based material in energy and environmental remediation is discussed in detail. More specifically, the role of graphene in thought-provoking research fields, viz. solar cell, photocatalytic water splitting, photocatalytic degradation of organic pollutants and heavy metal removal, is focused. As graphene possesses very good carrier mobility, it enhances the photocatalytic performance of semiconducting materials. Very interestingly, graphene is being used in both hole transport layer and electron transport layer in solar cell. Similarly, high surface area of graphene assists in heavy metal removal by adsorption. The challenges and recent achievements in these fields are highlighted in this review.

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石墨烯及其复合材料的新兴能源和环境应用：综述

石墨烯基材料在能源和环境应用领域受到关注。独特的物理化学资产，如高表面积、高热稳定性、化学柔韧性、高电子迁移率和机械坚固性，使其成为适用于不同应用的高度通用的材料。在这篇批判性评论中，详细讨论了石墨烯基材料在能源和环境修复中的应用。更具体地说，石墨烯在发人深省的研究领域中的作用，即。专注于太阳能电池、光催化分解水、光催化降解有机污染物和去除重金属。由于石墨烯具有非常好的载流子迁移率，它增强了半导体材料的光催化性能。非常有趣的是，石墨烯被用于太阳能电池的空穴传输层和电子传输层。同样，石墨烯的高表面积有助于通过吸附去除重金属。本综述强调了这些领域的挑战和最近取得的成就。