Bioinspired Janus Evaporator for Efficient Desalination of Saline-Alkali and Seawater Through Photothermal-Capillary Effects

Bioinspired Janus Evaporator for Efficient Desalination of Saline-Alkali and Seawater Through Photothermal-Capillary Effects | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Energy & Environmental Materials This is a preprint and has not been peer reviewed. Data may be preliminary. 18 July 2025 V1 Latest version Share on Bioinspired Janus Evaporator for Efficient Desalination of Saline-Alkali and Seawater Through Photothermal-Capillary Effects Authors : Qi Zhang , Pengfei Zhang 0000-0003-4023-1236 [email protected] , Shan Song , Chengyu Fu , Limeng Yang , and Cuihong Sheng Authors Info & Affiliations https://doi.org/10.22541/au.175287083.33382926/v1 Published ENERGY & ENVIRONMENTAL MATERIALS Version of record Peer review timeline 270 views 205 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Soil salinization and freshwater scarcity are critical constraints on sustainable agriculture. Inspired by the salt-resistance mechanisms of Tamarix chinensis, this study combines textile technology to ingeniously integrate a hydrophobic PP/MXene photothermal sheath with a hydrophilic cotton core into functionalized yarns, successfully developing a Janus core-sheath evaporator (PM-CSY-F). MXene is uniformly dispersed within the PP matrix,/MXene shell, significantly enhancing internalmultiple light scattering andreflections between its layers, thereby improving photothermal conversion efficiency. In additionFurthermore, by precisely regulating the number of cotton cores, the water transport rate is tunable by adjusting the number of cotton core yarns, enablingcan be effectively modulated, achieving synergistic enhancementoptimization of efficient solar absorption and capillary-drivenrapid water deliverytransport. The sheath and nighttime radiative cooling enable self-cleaning and suppress salt accumulation. The PP matrix isolates MXene from highly alkaline water, improving stability. Under 1 kW·m-2 irradiation, the evaporator achieved a 2.34 kg·m-2·h-1 evaporation rate for saline-alkali water (150 mmol·L-1 Na+). In simulated seawater, performance improved to 2.46 kg·m-2·h-1. Outdoor tests yielded 12.99 kg·m-2 of water over 8 h. The textile-based design supports scalable manufacturing. This approach provides a viable solution for both soil remediation and freshwater generation, advancing sustainable agriculture in vulnerable regions. Supplementary Material File (complete manuscript.pdf) Download 1.88 MB Information & Authors Information Version history V1 Version 1 18 July 2025 Peer review timeline Published ENERGY & ENVIRONMENTAL MATERIALS Version of Record 2 Jan 2026 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Energy & Environmental Materials Keywords core-sheath structure interfacial evaporator saline-alkali water treatment salt-alkali corrosion resistance scalable preparation Authors Affiliations Qi Zhang Xi'an Polytechnic University View all articles by this author Pengfei Zhang 0000-0003-4023-1236 [email protected] Xi'an Polytechnic University View all articles by this author Shan Song Xi'an Polytechnic University View all articles by this author Chengyu Fu Xi'an Polytechnic University View all articles by this author Limeng Yang Xi'an Polytechnic University View all articles by this author Cuihong Sheng Xi'an Polytechnic University View all articles by this author Metrics & Citations Metrics Article Usage 270 views 205 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Qi Zhang, Pengfei Zhang, Shan Song, et al. Bioinspired Janus Evaporator for Efficient Desalination of Saline-Alkali and Seawater Through Photothermal-Capillary Effects. Authorea . 18 July 2025. DOI: https://doi.org/10.22541/au.175287083.33382926/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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