Ahmad I, Shukrullah S, Naz M Y, Ahmad M, Ahmed E, Liu Y, Hussain A, Iqbal S, Ullah S
Department of Physics, University of Agriculture Faisalabad, 38040, Pakistan.
Department of Physics, University of Agriculture Faisalabad, 38040, Pakistan.
Adv Colloid Interface Sci. 2022 Jun;304:102661. doi: 10.1016/j.cis.2022.102661. Epub 2022 Apr 4.
Although photocatalytic technology has emerged as an effective means of alleviating the projected future fuel crisis by converting sunlight directly into chemical energy, no visible-light-driven, low-cost, and highly stable photocatalyst has been developed to date. Due to considerably higher interfacial contact with numerous reactive sites, effective charge transmission and separation ability, and strong redox potentials, the focus has now shifted to 2D/2D heterojunction systems, which have exhibited effective photocatalytic performance. The fundamentals of 2D/2D photocatalysis for different applications and the classification of 2D/2D materials are first explained in this paper, followed by strategies to improve the photocatalytic performance of various 2D/2D heterojunction systems. Following that, current breakthroughs in 2D/2D metal-based and metal-free heterojunction photocatalysts, as well as their applications for H evolution via water splitting, CO reduction, and N fixation, are discussed. Finally, a brief overview of current constraints and predicted results for 2D/2D heterojunction systems is also presented. This paper lays out a strategy for developing efficient 2D/2D heterojunction photocatalysts and sophisticated technology for solar fuel applications in order to address the energy issue.
尽管光催化技术已成为一种通过将阳光直接转化为化学能来缓解预计未来燃料危机的有效手段，但迄今为止尚未开发出可见光驱动、低成本且高度稳定的光催化剂。由于与众多反应位点有更高的界面接触、有效的电荷传输和分离能力以及强大的氧化还原电位，现在的研究重点已转向二维/二维异质结体系，该体系已展现出有效的光催化性能。本文首先解释了二维/二维光催化在不同应用中的基本原理以及二维/二维材料的分类，接着阐述了提高各种二维/二维异质结体系光催化性能的策略。随后，讨论了二维/二维金属基和无金属异质结光催化剂的当前突破，以及它们在通过水分解制氢、二氧化碳还原和固氮方面的应用。最后，还简要概述了二维/二维异质结体系当前的限制和预测结果。本文提出了一种开发高效二维/二维异质结光催化剂的策略以及用于太阳能燃料应用的先进技术，以解决能源问题。
