scholarly journals PHYSICOCHEMICAL IN-SITU SYNTHESIS OF PRUSSIAN BLUE FOR CESIUM REMOVAL

2021 ◽  
Vol 55 (4) ◽  
Author(s):  
Woo Jung Lee ◽  
Sang Sun Choi ◽  
Soon Hong Lee ◽  
Kyung Jae Yun ◽  
Yeon Ji Cho ◽  
...  

Prussian blue (PB) has attracted substantial attention as a potential adsorbent for radionuclides due to its high water-insoluble characteristics. Here, PB-encapsulating activated carbon fibers (ACFs) obtained via a physicochemical in-situ synthesis were introduced for an effective cesium removal. ACFs were used as an anchor platform to hold PB within the pores. The physicochemical synthesis of PB (PB-ACF-B) was done by stirring ACFs in an iron chloride solution. Potassium ferrocyanate was injected during the stirring process. As the counterpart, powdered PB (PB-ACF-A) was prepared with a physical synthesis. Throughout the test, PB-ACF-B revealed a decrease in the specific surface characteristics compared to PB-ACF-A; however, it also experienced an increase in the 133Cs adsorption. In all the cases, the dosage of the absorbent and radionuclide was in positive correlation with the adsorption performance. Further, the amount of PB was found to be the key factor for the adsorption of 133Cs compared to the specific surface characteristics.

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4449
Author(s):  
Lijian Sun ◽  
Limei Li ◽  
Xianhui An ◽  
Xueren Qian

The development of photothermal materials with a high light-to-heat conversion capability is essential for the utilization of clean solar energy. In this work, we demonstrate the use of a novel and sustainable concept involving cellulose liquefaction, rapid gelation, in situ synthesis and hot-press drying to convert cellulose and metal–organic framework (Prussian blue) into a stable photothermal bioplastic that can harvest sunlight and convert it into mechanical motion. As expected, the obtained Prussian blue@cellulose bioplastic (PCBP) can effectively absorb sunlight and the surface can be heated up to 70.3 °C under one sun irradiation (100 mW cm−2). As a demonstration of the practicality of PCBP, it was successfully used to drive a Stirling engine motion. Meanwhile, hot-pressing promotes the densification of the structure of PCBP and, therefore, improves the resistance to the penetration of water/non-aqueous liquids. Moreover, PCBP shows good mechanical properties and thermal stability. Given the excellent photothermal performance and environmentally friendly features of photothermal conversion bioplastic, we envisage this sustainable plastic film could play important roles toward diversified applications: a photothermal layer for thermoelectric generator, agricultural films for soil mulching and photothermal antibacterial activity, among others.


2017 ◽  
Vol 72 ◽  
pp. 692-700 ◽  
Author(s):  
Weiwei Qiu ◽  
Qionghua Zhu ◽  
Fei Gao ◽  
Feng Gao ◽  
Jiafu Huang ◽  
...  

2019 ◽  
Vol 48 (17) ◽  
pp. 5649-5655 ◽  
Author(s):  
Yilei Li ◽  
Tian Jin ◽  
Ge Ma ◽  
Yunchao Li ◽  
Louzhen Fan ◽  
...  

Hollow CdS nanoboxes with a specific surface area of 153 m2 g−1 are synthesized through in situ sulfurizing Cd-MOF-47 with thiourea, which exhibit a greatly improved photocatalytic activity in water splitting to hydrogen (21 654 μmol g−1 h−1).


2017 ◽  
Vol 41 (8) ◽  
pp. 2887-2890 ◽  
Author(s):  
Cyril Lavaud ◽  
Marilyn Kajdan ◽  
Elsa Compte ◽  
Jean-Claude Maurel ◽  
Joséphine Lai Kee Him ◽  
...  

A Prussian blue reverse micellar system forin vivoCs+uptake exhibiting high efficiency and a significant dose effect.


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