零價銅製備及其移除雙偶氮反應性染料Reactive Black 5
Other Title
Synthesis of Zero-valent Copper Particles for the Removal of One Azo Dye-Reactive Black 5
Journal
臺灣農業化學與食品科學
Journal Volume
54
Journal Issue
6
Start Page
290
End Page
295
ISSN
1605-2471
Date Issued
2016
Author(s)
Abstract
本研究以硼氫化鈉作為製備零價銅顆粒的還原劑，將硼氫化鈉加入硫酸銅後產生劇烈反應，5 min後生成銅顆粒，以TEM與DLS觀察偵測粒徑分別是250 nm與1,468 nm。將銅顆粒以XPS分析，確實含有零價銅。以硼氫化鈉還原之零價銅皆可移除不同濃度(25至100 ppm)的Reactive Black 5 (RB5)，試驗溫度與移除率成正比關係。此外，本研究亦測得不同溫度下之反應速率常數，藉此計算得知硼氫化鈉還原之零價銅移除RB5的活化能約為16.30 kJ/mol。本研究成果將有助了解以硼氫化鈉還原之零價銅特性及其移除RB5的能力，以期研發出反應性強的金屬材料。
In this study, we used sodium borohydride method to produce zero-valent copper (ZVC) particles. After adding sodium borohydride into copper sulfide, a strong reaction occurred and ZVC particles were produced after 5 minutes. The particle size was 250 nm and 1,468 nm measured by transmission electron microscopy (TEM) and dynamic light scattering (DLS), respectively. According to X-Ray photoelectron spectroscopy (XPS) analysis, these particles contained zero-valent copper. ZVC particles removed 25 to 100 ppm of Reactive Black 5 (RB5) effectively and the efficiency of removal enhanced while the temperature went higher. Furthermore, the activation energy for RB5 degradation was 16.30 kJ/mol calculated by Arrhenius equation. Our results illustrated the basic characteristics and RB5 removal ability of ZVC particles. These findings could lead to the further developments of reactive metals.
Subjects
活化能
移除
粒徑大小
零價銅
Activation energy
Particle size
Reactive Black 5
Removal
Zero-valent coppers
Type
journal article