Manganese-doped carbon dots for detecting Fe3+, Mn-CDs solution, test paper and preparation method and detection method thereof

• Main Authors: CHEN XUEYING, ZHU JIE, RAO PENGPENG, CHEN YEQING, LI CHEN, HUANG JIE, NI ZONGMING, XIONG GAOYANG, ZHU LINA, CHEN YAN
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a manganese-doped carbon dot for detecting Fe3+, a Mn-CDs solution, test paper and a preparation method and a detection method thereof, manganese ion-doped carbonized polymer dots (Mn-CPDs) are synthesized through a simple one-step solvothermal method, and manganese ions are wrapped in a carbon core in a Mn-O bond form; the manganese-doped carbon dots generate an emission peak located at 400-650 nm under the irradiation of exciting light; and then the Mn-CDs/Mn-CDs solution is soaked and combined with a paper base material, so that the portable fluorescent test paper which is low in price, simple and rapid and can directly detect Fe3+ is developed. The fluorescent test paper realizes linear detection of iron ion concentration, and has the advantages of visual detection, low cost, convenient preparation, convenient carrying, on-site detection and the like. 本文涉及用于检测Fe3+的锰掺杂碳点、Mn-CDs溶液、试纸及其制备方法、检测方法，通过简单的一步溶剂热法合成了锰离子掺杂的碳化聚合物点(Mn-CPDs)，其中锰离子以Mn-O键的形式被包裹在碳核中；所述锰掺杂碳点在激发光照射下，产生位于400-650nm的发射