NDLI: Facile Sulfurization under Ambient Condition with $Na_{2}$S to Fabricate Nanostructured Copper Sulfide

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Facile Sulfurization under Ambient Condition with $Na_{2}$S to Fabricate Nanostructured Copper Sulfide

Content Provider	MDPI
Author	Hwang, Eunseo Park, Yoonsu Kim, Jongbae Paik, Taejong Ha, Don-Hyung
Copyright Year	2021
Description	The sulfurization reaction was investigated as a promising fabrication method for preparing metal sulfide nanomaterials. Traditional sulfurization processes generally require high vacuum systems, high reaction temperatures, and toxic chemicals, utilizing complicated procedures with poor composition and morphology controllability. Herein, a facile method is reported for synthesizing nanostructured copper sulfide using a sulfurization reaction with $Na_{2}$S at room temperature under non-vacuum conditions. Moreover, we demonstrate that the morphology, composition, and optical properties of nanostructured copper sulfides could be controlled by the $Na_{2}$S solution concentration and the reaction time. Nanostructured copper sulfides were synthesized in nanospheres, nanoplates, and nanoplate-based complex morphologies with various oxidation states. Furthermore, by comparing the optical properties of nanostructured copper sulfides with different oxidation states, we determined that reflectivity in the near infrared (NIR) region decreases with increasing oxidation states. These results reveal that the $Na_{2}$S solution concentration and reaction time are key factors for designing nanostructured copper sulfides, providing new insights for synthesis methods of metal sulfide nanomaterials.
Starting Page	2317
e-ISSN	20794991
DOI	10.3390/nano11092317
Journal	Nanomaterials
Issue Number	9
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-09-06
Access Restriction	Open
Subject Keyword	Nanomaterials Environmental Engineering Sulfurization Na2s Copper Sulfide Nanostructure Cu Film
Content Type	Text
Resource Type	Article

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