Scalable Fabrication of Electrospun Nanofibrous Membranes Functionalized with Citric Acid for High-Performance Protein Adsorption

2016 ◽  
Vol 8 (18) ◽  
pp. 11819-11829 ◽  
Author(s):  
Qiuxia Fu ◽  
Xueqin Wang ◽  
Yang Si ◽  
Lifang Liu ◽  
Jianyong Yu ◽  
...  
Keyword(s):  
Citric Acid ◽  
Protein Adsorption ◽  
High Performance ◽  
Nanofibrous Membranes

Nickel oxide aerogel for high performance supercapacitor electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 112620-112624 ◽  
Author(s):  
Zhiyi Zhang ◽  
Qiuyue Gao ◽  
Haibo Gao ◽  
Zhenyu Shi ◽  
Junwei Wu ◽  
...  
Keyword(s):  
Citric Acid ◽  
Nickel Oxide ◽  
High Performance ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

Monolithic NiO aerogels were prepared by a facile citric acid assisted sol–gel method for supercapacitor electrodes.

scholarly journals Synergistic effect of citric acid and carbon dots modified g-C3N4 for enhancing photocatalytic reduction of Cr(VI)

2021 ◽  
Author(s):  
Jiamin Liu ◽  
Jianjun Li ◽  
Juan Liang ◽  
Chengjun Jing ◽  
Jiaxiu Guo
Keyword(s):  
Citric Acid ◽  
High Performance ◽  
Synergistic Effects ◽  
Synergetic Effect ◽  
Photogenerated Electron ◽  
Active Species ◽  
Photocatalytic Reduction ◽  
Charge Transfer Complexes ◽  
Hole Scavenger

Abstract Carbon dot (CD)-modified graphitic carbon nitride (g-C3N4) photocatalysts were synthesized through a one-step homogeneous thermal pyrolysis. The synergetic effect of citric acid (Cit) and g-C3N4/CDs for high-performance visible light Cr(VI) photocatalytic reduction had been investigated. Cit was not only acted as a hole scavenger, but might also form surface charge transfer complexes (CTC) with g-C3N4 which delivered electrons on the Highest Occupied Molecular Orbital (HOMO) of Cit to the conduction band (CB) of g-C3N4. CDs decorated on g-C3N4 could provide channels for the preferential transfer of electrons on CTC to the CB of g-C3N4 as well as improved separation of the charge carriers. Owing to these synergistic effects, g-C3N4/CDs displayed much higher photocatalytic performance for the reduction of Cr(VI), which was 1.89 times higher than g-C3N4. Moreover, the synergetic photocatalytic reduction mechanisms of aqueous Cr(VI) were proposed to elucidate the active species formation and photogenerated electron transfer. The results suggested that the in situ generated hydrogen peroxide (H2O2) dominated the reduction of Cr(VI). The addition of Cit could trigger the in situ generation of H2O2 and the decorated CDs further enhanced the reaction. This work demonstrated the role of widely existed Cit on the photocatalytic reduction of Cr(VI) in natural aquatic environment.

scholarly journals Differences in surface roughness of nanohybrid composites immersed in varying concentrations of citric acid

2017 ◽  
Vol 50 (2) ◽  
pp. 102
Author(s):  
Gabriela Kevina Alifen ◽  
Adioro Soetojo ◽  
Widya Saraswati
Keyword(s):  
Surface Roughness ◽  
Citric Acid ◽  
Acid Solution ◽  
High Performance ◽  
Citric Acid Solution ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Nanohybrid Composite ◽  
Group 3 ◽  
Group 2

Background: The surface roughness of restoration is important in predicting the length of time it might remain in the mouth. Conditions within the oral cavity can affect the surface roughness of a restoration. Nanohybrid composite is widely used in dentistry because it can be applied to restore anterior and posterior teeth. Athletes routinely consume isotonic drinks which are acidic and even more erosive than the carbonated variety because they contain a range of acids; the highest content of which being citric acid. Purpose: The aim of the study was to analyze the surface roughness of nanohybrid composite after having been subjected to immersion in varying concentrations of citric acid. Methods: Two isotonic drinks (Pocari Sweat and Mizone) were analyzed using high performance liquid chromatography (HPLC) to quantify the respective concentrations of citric acid which they contained. A total of 27 samples of cylindrical nanohybrid composite were prepared before being divided into three groups. In Group 1, samples were immersed in citric acid solution derived from Pocari Sweat. Those of Group 2 were immersed in citric acid solution derived from Mizone; while Group 3, samples were immersed in distilled water as a control. All samples were immersed for 7 days, before their surface roughness was tested by means of a surface roughness tester (Mitutoyo SJ-201). Data was analyzed using a one-way ANOVA test. Results: The results showed that there was no significant difference in surface roughness between Groups 1, 2 and 3 (p=0.985). Conclusion: No difference in surface roughness of nanohybrid composites results from prolonged immersion in varying concentrations of citric acid.

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