材料科学
镍
光催化
化学工程
细菌纤维素
金属有机骨架
电极
纳米颗粒
电化学
可见光谱
催化作用
纤维素
纳米技术
吸附
冶金
化学
有机化学
光电子学
物理化学
工程类
作者
S. Ebrahimi-Koodehi,F. E. Ghodsi,J. Mazloom
标识
DOI:10.1038/s41598-023-46188-8
摘要
Abstract Recently, metal–organic frameworks (MOFs) and hybrids with biomaterial are broadly investigated for a variety of applications. In this work, a novel dual-phase MOF has been grown on bacterial cellulose (BC) as a biopolymer nano-fibrous film (Ni/Mn-MOF@BC), and nickel foam (Ni/Mn-MOF@NF) using a simple reflux method to explore their potential for photocatalyst and energy storage applications. The studies showed that the prepared Mn and Ni/Mn-MOFs display different structures. Besides, the growth of MOFs on BC substantially changed the morphology of the samples by reducing their micro sized scales to nanoparticles. The nanosized MOF particles grown on BC served as a visible-light photocatalytic material. Regarding the high surface area of BC and the synergistic effect of two metal ions, Ni/Mn-MOF@BC with a lower band gap demonstrates remarkable photocatalytic degradation efficiency (ca. 84% within 3 h) against methylene blue (MB) dye under visible light, and the catalyst retained 65% of its initial pollutant removal properties after four cycles of irradiation. Besides, MOF powders deposited on nickel foam have been utilized as highly capacitive electrochemical electrodes. There, Ni/Mn-MOF@NF electrode also possesses outstanding electrochemical properties, showing a specific capacitance of 2769 Fg −1 at 0.5 Ag −1 , and capacity retention of 94% after 1000 cycles at 10 Ag −1 .
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