Enesca Alexandru, Andronic Luminita
Product Design, Mechatronics and Environmental Department, Transilvania University of Brasov, Eroilor 29 Street, 35000 Brasov, Romania.
Nanomaterials (Basel). 2021 Mar 30;11(4):871. doi: 10.3390/nano11040871.
Finding new technologies and materials that provide real alternatives to the environmental and energy-related issues represents a key point on the future sustainability of the industrial activities and society development. The water contamination represents an important problem considering that the quantity and complexity of organic pollutant (such as dyes, pesticides, pharmaceutical active compounds, etc.) molecules can not be efficiently addressed by the traditional wastewater treatments. The use of fossil fuels presents two major disadvantages: (1) environmental pollution and (2) limited stock, which inevitably causes the energy shortage in various countries. A possible answer to the above issues is represented by the photocatalytic technology based on S-scheme heterostructures characterized by the use of light energy in order to degrade organic pollutants or to split the water molecule into its components. The present mini-review aims to outline the most recent achievements in the production and optimization of S-scheme heterostructures for photocatalytic applications. The paper focuses on the influence of heterostructure components and photocatalytic parameters (photocatalyst dosage, light spectra and intensity, irradiation time) on the pollutant removal efficiency and hydrogen evolution rate. Additionally, based on the systematic evaluation of the reported results, several perspectives regarding the future of S-scheme heterostructures were included.
寻找能够切实解决环境与能源相关问题的新技术和新材料，是工业活动未来可持续发展以及社会发展的关键所在。考虑到传统废水处理方法无法有效处理有机污染物（如染料、农药、药物活性成分等）分子的数量和复杂性，水污染成为一个重要问题。化石燃料的使用存在两个主要缺点：（1）环境污染；（2）储量有限，这不可避免地导致各国出现能源短缺。针对上述问题，一种可能的解决方案是以S型异质结构为基础的光催化技术，该技术利用光能降解有机污染物或将水分子分解为其组成成分。本综述旨在概述用于光催化应用的S型异质结构的制备和优化方面的最新成果。本文重点关注异质结构组成部分和光催化参数（光催化剂用量、光谱和强度、照射时间）对污染物去除效率和析氢速率的影响。此外，基于对已报道结果的系统评估，还纳入了关于S型异质结构未来发展的若干观点。
