Developing robust omniphobic ceramic membrane for energy-efficient carbon capture using biphasic solvent
二相溶媒を用いた省エネルギー炭素回収のための頑強な全撥液性セラミック膜の開発 (AI 翻訳)
R L Wang, Tao Sun, Yaxiong Gao, Enyu Wang, Li Dehong, Lanlan Wu, Shuiping Yan
🤖 gxceed AI 要約
日本語
本研究では、二相溶媒を用いたCO2膜吸収プロセス向けに、新規の全撥液性セラミック膜を開発した。チタニアナノロッドの形成とフッ素化処理により、低表面張力の二相溶媒に対する撥液性を向上させ、60時間の連続運転で細孔濡れを防止した。膜接触器外部での相分離により、全溶媒の55%の濃縮相にCO2の約88%が濃縮され、省エネルギー炭素回収の実現可能性を示した。
English
This study develops a novel omniphobic ceramic membrane for CO2 membrane absorption using biphasic solvent. The membrane, fabricated with TiO2 nanorods and fluorination, exhibits excellent repellency against low-surface-tension biphasic solvents, preventing pore wetting for 60 hours. Phase separation outside the membrane contactor enriched ~88% of captured CO2 in 55% of the solvent volume, demonstrating energy-efficient carbon capture feasibility.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、鉄鋼・化学など排出削減困難部門におけるCCUSが重要視されており、本技術は膜分離による効率的なCO2回収の選択肢を提示する。省エネ性と長期安定性は実用化に向けた鍵となる。
In the global GX context
Globally, this work advances membrane-based carbon capture technology by addressing pore wetting issues with biphasic solvents, which is a critical hurdle for energy-efficient CO2 capture. The omniphobic ceramic membrane design offers a scalable pathway for post-combustion capture in hard-to-abate sectors.
👥 読者別の含意
🔬研究者:Highlights a new membrane modification strategy (TiO2 nanorods + fluorination) for biphasic solvent-based carbon capture, offering insights into wetting resistance and phase separation behavior.
🏢実務担当者:Provides a membrane option for carbon capture that reduces energy penalty and operational instability, relevant for power plants and industrial CCS retrofits.
🏛政策担当者:Supports the case for funding membrane R&D as a key enabler for cost-effective CCS deployment, especially for industries with high capture costs.
📄 Abstract（原文）
Energy-efficient CO 2 membrane absorption enhanced by biphasic solvent was explored in this study, in which a novel omniphobic ceramic membrane was primarily developed to overcome the highly occurred pore wetting risk of conventional hydrophobic organic membrane by biphasic solvent with a low surface tension. The omniphobic ceramic membrane was fabricated by constructing the rough titanium dioxide (TiO 2 ) nanorods on the pristine ceramic membrane surface via a hydrothermal method, followed by fluorination, which effectively enhanced the solvent repellency of membrane. Compared to the pristine membrane, the hierarchical omniphobic membrane showed a higher surface roughness due to the formed uniform flower-like nanostructures. The fluorination treatment created the low-surface-energy membrane with the contact angles of 166.47±4.25° and 139.06±3.30° for water and a typical biphasic solvent with ∼35 mN/m surface tension (i.e., 20 wt.% triethylenetetramine+60 wt.% sulfolane balanced by deionized water) respectively, causing a better stability of membrane without pore wetting during the 60-hour CO 2 absorption operation. When adopting the omniphobic ceramic membrane as the barrier between the biphasic solvent and CO 2 , the phase separation behavior occurred successfully outside the membrane contactor, and ∼88% of captured CO 2 was rapidly enriched in the concentrated phase of biphasic solvent that accounted for only 55% of the total solvent volume, implying the feasibility of omniphobic ceramic membrane in the carbon capture process using biphasic solvent. This study might provide a scalable strategy to fabricate the omniphobic ceramic membrane adapted for biphasic-solvent-based CO 2 membrane absorption.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ccst.2026.100662first seen 2026-07-24 05:46:16
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