tailieunhanh - Molten salt synthesis of gadolinium boride nanocrystals suitable for methyl blue removal

In addition to reduction, MB decolorization mainly results from adsorption on the surface of GdB6 based on the adsorption-desorption tests. The adsorption behavior follows the pseudo-second-order kinetics and Freundlich isotherm model. | Environmental Advances 4 2021 100055 Contents lists available at ScienceDirect Environmental Advances journal homepage locate envadv Molten salt synthesis of gadolinium boride nanocrystals suitable for methyl blue removal Fengquan Zhang a b Xiuting Chen a Chenyang Wang a c Xiyan Liu a c a Department of Radiochemistry Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China b Department of Microelectronic Science and Engineering School of Physical Science and Technology Ningbo University Ningbo Zhejiang 315211 China c School of Nuclear Science and Technology University of Chinese Academy of Sciences Beijing 100049 China a r t i c l e i n f o a b s t r a c t Keywords Efficient removal of cationic dyes such as methyl blue MB is of great importance from the environmental per- Gadolinium boride spective. Although adsorption methods have been employed for this purpose it is not easy to find inorganic Molten salt synthesis materials featuring both high adsorption capacity and ratio. Herein a comprehensive study on the MB removal Methylene blue performance by GdB6 nanoparticles was provided. GdB6 was conveniently synthesized via the reaction of GdF3 Adsorption and NaBH4 at 900 C in molten LiCl-KCl and the resulting nanoparticles exhibit cubic-shaped structures with an Wastewater treatment average size of 100 nm and BET surface area of m2 g. During the evaluation of MB removal performance reduction of MB to colorless leucomethylene LMB on the surface of GdB6 was observed for the first time which makes it more reliable to determine the capability of GdB6 in the treatment of MB. In addition to reduction MB decolorization mainly results from adsorption on the surface of GdB6 based on the adsorption-desorption tests. The adsorption behavior follows the pseudo-second-order kinetics and Freundlich isotherm model. An adsorp- tion capacity of mg g with an adsorption ratio of was obtained and the performance remained .