首页|Non-toxic fluorescent molecularly imprinted hydrogel based on wood-derived cellulose nanocrystals and carbon dots for efficient sorption and sensitive detection of tetracycline
Non-toxic fluorescent molecularly imprinted hydrogel based on wood-derived cellulose nanocrystals and carbon dots for efficient sorption and sensitive detection of tetracycline
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier B.V.For clean, effective, and high value-added use of wood, a novel non-toxic fluorescent molecularly imprinted hydrogel (FMIH) was prepared based on wood-derived cellulose nanocrystals and carbon dots for efficient sorption and sensitive detection of tetracycline (TC). The FMIH's morphology, chemical structure, optical properties and non-cytotoxicity were investigated. The adsorption performance of FMIH toward TC was studied, indicating that the sorption data were well fitted by the Langmuir and Pseudo-second-order models, and the maximum sorption capacity was 544.4 mg/g. An evaluation of the detection performance of FMIH toward TC showed its excellent selectivity and sensitivity to TC with the detection limit of 0.11 μg/L. Mechanism analysis confirmed that the efficient sorption and sensitive detection was due to specific molecular recognition sites introduced by wood-derived cellulose nanocrystals and carbon dots. Moreover, a cost analysis performed for FMIH and commercial activated carbon (CAC) showed that the cost of removing 1 g of TC using FMIH was almost thirty-four times cheaper than that of CAC. This work could provide a new way for using wood to produce a low-cost, multifunctional, and green adsorbent for removing antibiotics.
AntibioticsCarbon dotsSelective sorptionWood
Luo Q.、He S.、Li Q.、Guo X.、Huang Y.、Lei Z.、Qiao J.、Wu Y.、Xu D.
展开 >
College of Science Central South University of Forestry and Technology
College of Materials Science and Engineering Central South University of Forestry and Technology
College of Food Science and Engineering Central South University of Forestry and Technology
NSTL
Elsevier
