Wei Huang, Xiyuan Gao, Lei Sun, Haojie Chen, Pengnian Shan, Yu Shen, Shunhong Zhang, Lijing Wang, Changyu Lu, Weilong Shi
{"title":"Black g-C3N4-based hydrogel for water evaporation and photothermal persulfate activation","authors":"Wei Huang, Xiyuan Gao, Lei Sun, Haojie Chen, Pengnian Shan, Yu Shen, Shunhong Zhang, Lijing Wang, Changyu Lu, Weilong Shi","doi":"10.1016/j.jmst.2025.06.014","DOIUrl":null,"url":null,"abstract":"Integrating the evaporation of seawater at the interface with the treatment of wastewater presents an encouraging approach to address urgent energy and environmental issues. Nevertheless, the development of dual-function evaporators endowed with synergistic photothermal advanced oxidation catalytic properties presents significant hurdles. In this study, a black g-C<sub>3</sub>N<sub>4</sub>/loofah/chitosan (BCN/LF/CS) hydrogel was developed, demonstrating remarkable abilities in absorbing sunlight and converting it thermally. This innovation is intended for solar-driven evaporation and the thermal activation of persulfate (PS), which aids in the degradation of tetracycline (TC) contaminants. Test results demonstrated that under singular sunlight irradiation, BCN/LF/CS hydrogel not only achieves an impressive evaporation rate of 2.5 kg m<sup>−2</sup> h<sup>−1</sup> but also effectively catalyzes the decomposition of PS, leading to substantial degradation of TC (Concertation: 50 mg/L, PS dose: 0.03 g/L, 86% degradation rate: in 3 h). The research unveils innovative and ingenious methodologies to alleviate freshwater scarcity and address the pressing issue of water pollution which introduces a groundbreaking approach to the development of advanced solar evaporators that seamlessly integrate seawater desalination with sewage purification.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"70 1","pages":""},"PeriodicalIF":11.2000,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science & Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jmst.2025.06.014","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Integrating the evaporation of seawater at the interface with the treatment of wastewater presents an encouraging approach to address urgent energy and environmental issues. Nevertheless, the development of dual-function evaporators endowed with synergistic photothermal advanced oxidation catalytic properties presents significant hurdles. In this study, a black g-C3N4/loofah/chitosan (BCN/LF/CS) hydrogel was developed, demonstrating remarkable abilities in absorbing sunlight and converting it thermally. This innovation is intended for solar-driven evaporation and the thermal activation of persulfate (PS), which aids in the degradation of tetracycline (TC) contaminants. Test results demonstrated that under singular sunlight irradiation, BCN/LF/CS hydrogel not only achieves an impressive evaporation rate of 2.5 kg m−2 h−1 but also effectively catalyzes the decomposition of PS, leading to substantial degradation of TC (Concertation: 50 mg/L, PS dose: 0.03 g/L, 86% degradation rate: in 3 h). The research unveils innovative and ingenious methodologies to alleviate freshwater scarcity and address the pressing issue of water pollution which introduces a groundbreaking approach to the development of advanced solar evaporators that seamlessly integrate seawater desalination with sewage purification.
期刊介绍:
Journal of Materials Science & Technology strives to promote global collaboration in the field of materials science and technology. It primarily publishes original research papers, invited review articles, letters, research notes, and summaries of scientific achievements. The journal covers a wide range of materials science and technology topics, including metallic materials, inorganic nonmetallic materials, and composite materials.