Nanostructured copper hydroxide-based interfaces for liquid/liquid and liquid/gas separations was written by Lu, Jingwei;Miao, Gan;Gao, Zhongshuai;Xu, Ting;Li, Fangchao;Miao, Xiao;Song, Yuanming;Li, Xiangming;Ren, Guina;Zhu, Xiaotao. And the article was included in Separation and Purification Technology in 2022.Electric Literature of CuH2O2 This article mentions the following:
Development of an under-liquid super-repellent (ULSR) surface that can act as a versatile platform for separating both liquid/liquid and liquid/gas mixtures is highly desirable, yet still hard to realize. Herein, to address this challenge, a Cu(OH)2 nanowire textured surface on copper mesh was developed through a simple immersion process. The resulting Cu(OH)2 nanowire surface displayed underwater superoleophobicity, underoil superhydrophobicity, and unusual dual superoleophobicity under immiscible oil-oil system. Exploiting its superlyophobicity under-liquid, the Cu(OH)2 nanowire covered copper mesh was applied to sep. oil/water mixtures, emulsions, and oil/oil mixtures effectively, even though the surface tension between two liquids was just 2.4 mN/m. The separation efficiency is higher than 99% for all mixtures, and the oil/water separation efficiency can maintain above 98% even after 40 cycles. Furthermore, owing to its superaerophobicity underwater and underoil, the obtained copper mesh was also able to sep. gas from bulk water and oil efficiently. This work is hoped to provide a key addition to the fields of ULSR surfaces as well as membrane-based separation techniques. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Electric Literature of CuH2O2).
Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Electric Literature of CuH2O2
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”