Photocatalytic Degradation of Carcinogenic N-Nitrosodiethylamine (NDEA) in Amine-Based CO₂ Capture Using Carbon Nitride under Visible Light
可視光下での窒化炭素を用いたアミン系CO₂回収における発がん性N-ニトロソジエチルアミン（NDEA）の光触媒分解 (AI 翻訳)
Muhammad Zafar1, Sarmad Hassan2, Aqeel Afzal1, Muhammad Muneer3*, Muhammad Sohaib Azeem4
🤖 gxceed AI 要約
日本語
本研究では、アミン系CO2回収過程で生成する発がん性ニトロソアミン（NDEA）を可視光下で光触媒分解する手法を検討。尿素由来の窒化炭素（C3N4）を触媒とし、UV-VisおよびHPLCで分解を評価。結果、効果的な分解と複数の副生成物の生成を確認し、エネルギー効率の良い除去法として提案する。
English
This study investigates the photocatalytic degradation of carcinogenic N-nitrosodiethylamine (NDEA) formed during amine-based CO2 capture, using carbon nitride (C3N4) under visible light. UV-Vis and HPLC monitoring confirmed significant degradation and formation of byproducts. The method offers an energy-efficient approach for removing hazardous nitrosamines from CCS processes.
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CCSの実証実験が進むが、アミン系回収における副生成物処理の技術は実用化に向けて重要。本研究成果は環境安全性向上に寄与する可能性がある。
In the global GX context
While global CCS deployment grows, managing hazardous byproducts like nitrosamines is critical for safe operation. This paper provides a photocatalytic solution that could enhance the environmental acceptability of amine-based capture.
👥 読者別の含意
🔬研究者:Provides a method for degrading NDEA using visible-light photocatalysis, relevant for CCS process optimization.
🏢実務担当者:Offers a potential technique for mitigating hazardous byproducts in amine-based CO2 capture operations.
📄 Abstract（原文）
This study aimed to degrade Nitrosodiethylamine (NDEA), a carcinogenic compound formed during CO2 capture processes due to the use of amines. CO2 emissions are one of the major contributors to global warming, and although various techniques have been developed for carbon capture, amine-based technologies remain among the most effective. However, these systems lead to the formation of hazardous nitrosamines such as NDEA. In this study, NDEA degradation was investigated under visible light (sunlight simulator) using a photocatalyst in the presence of amines, i.e., Monoethanolamide (MEA) and Diethanolamine (DEA), to simulate real-time CO2 capture conditions. Carbon nitride (C3N4) was synthesized using the thermal condensation method from urea and utilized to enhance surface area and maximize light absorption for effective electron activation and pollutant removal. UV-Vi’s spectrophotometry was employed to monitor the degradation of NDEA in both catalytic and non-catalytic systems over a wavelength range of 325 nm to 1100 nm. The results indicated significant degradation with noticeable variations in absorbance due to the formation of intermediate products. A validated HPLC method using gradient elusion was further applied to quantify NDEA degradation and confirm the formation of multiple degradation products, indicating a complex degradation pathway. The findings demonstrate that while UV-Vis provides rapid monitoring of degradation trends, HPLC enables precise quantification and differentiation between NDEA and its byproducts. The study confirms that photocatalytic degradation using carbon nitride under visible light is an energy-efficient and effective approach for the removal of NDEA from amine-based CO2 capture.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5281/zenodo.20251167first seen 2026-05-19 05:02:18 · last seen 2026-06-16 04:52:42
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