氮化石墨碳(g-C3N4)基磁性光催化剂去除抗生素

IF 5.5 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Akshay Verma, Gaurav Sharma, Tongtong Wang, Amit Kumar, Pooja Dhiman, Alberto García-Peñas
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引用次数: 0

摘要

抗生素在水生生态系统中越来越多的存在引起了人们对其生态和人类健康影响的严重关切。作为回应,广泛的研究集中在这些顽固污染物的降解和去除上。在各种方法中,多相光催化因其消除水中各种污染物的有效性而获得突出地位。该方法具有成本效益、环境友好性和高性能,是一种切实可行的污染物减排解决方案。石墨化氮化碳(g-C3N4)是开发先进光催化剂的重要材料。它的非金属性质、稳健的稳定性、合适的电子结构和良好的2.7 eV带隙使其成为一个优秀的候选者。然而,g-C3N4面临可见光吸收有限、电荷重组速度快、氧化能力低、质地差等挑战,影响了其光催化效率。这些问题可以通过开发具有相容能带的g- c3n4复合基磁性半导体光催化剂来解决。磁性材料与g-C3N4光催化剂的结合为易于分离和可回收提供了新的可能性,增强了实际应用。虽然以往的研究也详细介绍了g-C3N4基材料的各种修饰方法,但g-C3N4的结构-性能关系,特别是用于检测和降解抗生素的结构-性能关系还需要进一步探索。本文综述了基于g- c3n4的磁性光催化剂在抗生素去除中的应用,探索了制备技术、物理性质和性能指标。各种策略,以优化其效率,包括掺杂,异质结的形成和表面改性,也涵盖。它还深入研究了光催化抗生素降解的机制,解决了开发这些材料的挑战和机遇。最后,我们提出磁性组分在g-C3N4中的协同作用不仅代表了光催化剂设计的重大进步,而且为可持续废水处理技术开辟了新的途径,展示了该领域的高水平新颖性。该综述对抗生素修复的当前研究和潜在进展提供了有价值的见解。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Graphitic carbon nitride (g-C3N4)-based magnetic photocatalysts for removal of antibiotics

The increasing presence of antibiotics in aquatic ecosystems has raised serious concerns about their ecological and human health impacts. In response, extensive research has focused on the degradation and removal of these stubborn pollutants. Among various approaches, heterogeneous photocatalysis has gained prominence due to its effectiveness in eliminating diverse contaminants from water. This method stands out for its cost-efficiency, environmental friendliness, and high performance, making it a practical solution for pollutant mitigation. Graphitic carbon nitride (g-C3N4) has attracted significant attention for developing advanced photocatalysts. Its non-metallic nature, robust stability, suitable electronic configuration, and favorable 2.7 eV band gap make it an excellent candidate. However, g-C3N4 faces challenges such as limited visible-light absorption, rapid charge recombination, low oxidation power, and poor texture, which hinder its photocatalytic efficiency. These issues can be addressed by developing g-C3N4-composite-based magnetic semiconductor photocatalysts possessing compatible energy bands. Integrating magnetic materials with g-C3N4 photocatalysts offers new possibilities for easy separation and recyclability, enhancing practical use. While previous studies have also detailed various modification methods for g-C3N4-based materials, the structure-performance relationships of g-C3N4, particularly for detecting and degrading antibiotics, need further exploration. This review critically examines the utilization of g-C3N4-based magnetic photocatalysts for antibiotic removal, exploring fabrication techniques, physical properties, and performance metrics. Various strategies to optimize their efficiency, including doping, heterojunction formation, and surface modification, are also covered. It also delves into the mechanisms of photocatalytic antibiotic degradation, addressing challenges and opportunities in developing these materials. Ultimately, we propose that the synergy of magnetic components into g-C3N4 not only represents a significant advancement in photocatalyst design but also opens new avenues for sustainable wastewater treatment technologies, demonstrating a high level of novelty in the field. The review provides valuable insights into current research and potential advancements in antibiotic remediation.

Graphical abstract

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来源期刊
Carbon Letters
Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
7.30
自引率
20.00%
发文量
118
期刊介绍: Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.
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