Phytic acid induced three-dimensional graphene for the enrichment of phthalate esters from bottled water and sports beverage samples

2017 ◽  
Vol 40 (18) ◽  
pp. 3710-3717 ◽  
Author(s):  
Xinyu Liang ◽  
Juntao Wang ◽  
Juanjuan Wu ◽  
Qiuhua Wu ◽  
Chun Wang ◽  
...  
Author(s):  
Xiangqin Xu ◽  
Gang Zhou ◽  
Kun Lei ◽  
Gerald A. LeBlanc ◽  
Lihui An

A great deal of attention has been paid lately to release of phthalate esters (PAEs) from polyethylene terephthalate (PET) bottles into PET bottled drinking water due to their potential endocrine-disrupting effects. Three kinds of PAEs, including diethyl phthalate (DEP), dimethyl phthalate (DMP) and dibutyl phthalate (DBP), were detected in 10 popular brands of PET bottles in Beijing, ranging from 101.97 μg/kg to 709.87 μg/kg. Meanwhile, six kinds of PAEs, including DEP, DMP, DBP, n-butyl benzyl phthalate (BBP), di-n-octyl phthalate (DOP) and di(2-ethylhexyl) phthalate (DEHP), were detected in PET bottled water, ranging from 0.19 μg/L to 0.98 μg/L, under an outdoor storage condition, while their concentrations ranged from 0.18 μg/L to 0.71 μg/L under an indoor storage condition. Furthermore, the concentrations of PAEs in brand D and E bottles were slightly increased when the storage time was prolonged. In addition, the concentrations of PAEs in commercial water contained in brand B and H bottles and pure water contained in brand E and G bottles were also slightly increased with the increase of storage temperature. Interestingly, DBP mainly contributed to the increased PAEs levels in simulation water. These results suggest that a part of the PAEs in PET bottled water originated from plastic bottles, which was related to the storage time and temperature. However, the PAEs in PET bottled water only pose a negligible risk to consumers if they follow the recommendations, such as storage at a common place (24 °C), away from sun and in a short period of time.


Nanoscale ◽  
2016 ◽  
Vol 8 (3) ◽  
pp. 1555-1564 ◽  
Author(s):  
Xiang Gao ◽  
Ke Lu ◽  
Lei Xu ◽  
Hua Xu ◽  
Haifeng Lu ◽  
...  

Nanoscale ◽  
2017 ◽  
Vol 9 (34) ◽  
pp. 12601-12608 ◽  
Author(s):  
Han-Yu Li ◽  
Lang Liu ◽  
Zhi-Wei Zhang ◽  
Shu-Shen Wang ◽  
Yao Yu ◽  
...  

Three-dimensional functionalized graphene monoliths (3DFGMs) have attracted intensive attention as energy storage materials due to their unique interconnected porous structure, good electrical conductivity, excellent mechanical strength, and pseudocapacitive characteristic.


2021 ◽  
Vol 260 ◽  
pp. 01012
Author(s):  
Rui Yao

Novel three-dimensional renewable phytic acid (AP) aerogel electronics were synthesized through in-site polymerization and oriented lyophilization method. Three stages of the aerogels were apparently observed via SEM and TEM tests: the honeycomb structure consituted the first stage; the network with micropores formed the second stage; the third stage was composed of nanopores structure inside the micropores. When the molar ratio of aniline and phytic acid reached certain degree, the AP aerogel will emerge high pore volume and excellent specific capacitance. What’s more, the mechanical properties of AP aerogel were about 5 times (9 times for electrical properties) higher in vertical direction than those in horizontal direction. To sum up, the three-dimensional AP aerogel owned great mechanical and electrical properties in specific direction, at the same time, it exhibited outstanding specific capacitance (448 F.g-1).


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