Silver-nanoparticle Supported on Nanocrystalline Cellulose using Cetyltrimethylammonium Bromide: Synthesis and Catalytic Performance for Decolorization of Dyes

IF 1.4 Q4 NANOSCIENCE & NANOTECHNOLOGY
Hannaneh Heidari, M. Karbalaee
{"title":"Silver-nanoparticle Supported on Nanocrystalline Cellulose using Cetyltrimethylammonium Bromide: Synthesis and Catalytic Performance for Decolorization of Dyes","authors":"Hannaneh Heidari, M. Karbalaee","doi":"10.22052/JNS.2021.01.006","DOIUrl":null,"url":null,"abstract":"We reported that the ultrasonically synthesized nanocrystalline cellulose (NCC) from microcrystalline cellulose has the capacity for use as natural and green matrices for the synthesis of silver nanoparticles. Cationic surfactant cetyltrimethylammonium bromide (CTAB) was employed as a modifier and stabilizer for NCC. The structure of as-synthesized composite (Ag/CTAB/NCC) was characterized by Fourier transform infrared spectroscopy (FT-IR); field emission scanning electron microscopy (FE-SEM); Transmission electron microscopy (TEM); Energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The XRD pattern confirmed the single cubic phase of Ag nanoparticles with a crystallite size of about 30 nm. The catalytic activity of Ag/CTAB/NCC has been analyzed by performing the reduction of certain toxic azo methyl orange dye (MO) (by two methods) and aromatic nitro compound of 4- nitrophenol (4-NP) in shorter time. The reduction of MO to hydrazine derivatives and 4-NP to 4-aminophenol takes place with pseudo-first-order rate constants. The reduction time regularly decreased and the rate of reduction (k) increases (3 fold) with increasing catalyst amount in method (2) (mmol NaBH4/mmol MO = 250 and 42 mg catalyst) compared to the method (1) (mmol NaBH4/mmol MO = 400 and 5 mg catalyst). The results indicated that spherical AgNPs immobilized CTAB-adsorbed NCC showed better catalytic activity and shorter reduction time towards the removal of methyl orange (k = 14.2 × 10-3 s-1, t =150 s) and 4-nitrophenol (k = 5.4 × 10-3 s-1, t = 180 s) compared with previous works that could be introduced as an effective method for the catalytic treatment of wastewater.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nanostructures","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22052/JNS.2021.01.006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}
引用次数: 1

Abstract

We reported that the ultrasonically synthesized nanocrystalline cellulose (NCC) from microcrystalline cellulose has the capacity for use as natural and green matrices for the synthesis of silver nanoparticles. Cationic surfactant cetyltrimethylammonium bromide (CTAB) was employed as a modifier and stabilizer for NCC. The structure of as-synthesized composite (Ag/CTAB/NCC) was characterized by Fourier transform infrared spectroscopy (FT-IR); field emission scanning electron microscopy (FE-SEM); Transmission electron microscopy (TEM); Energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The XRD pattern confirmed the single cubic phase of Ag nanoparticles with a crystallite size of about 30 nm. The catalytic activity of Ag/CTAB/NCC has been analyzed by performing the reduction of certain toxic azo methyl orange dye (MO) (by two methods) and aromatic nitro compound of 4- nitrophenol (4-NP) in shorter time. The reduction of MO to hydrazine derivatives and 4-NP to 4-aminophenol takes place with pseudo-first-order rate constants. The reduction time regularly decreased and the rate of reduction (k) increases (3 fold) with increasing catalyst amount in method (2) (mmol NaBH4/mmol MO = 250 and 42 mg catalyst) compared to the method (1) (mmol NaBH4/mmol MO = 400 and 5 mg catalyst). The results indicated that spherical AgNPs immobilized CTAB-adsorbed NCC showed better catalytic activity and shorter reduction time towards the removal of methyl orange (k = 14.2 × 10-3 s-1, t =150 s) and 4-nitrophenol (k = 5.4 × 10-3 s-1, t = 180 s) compared with previous works that could be introduced as an effective method for the catalytic treatment of wastewater.
十六烷基三甲基溴化铵纳米晶纤维素负载银纳米颗粒:合成及其染料脱色催化性能
本文报道了由微晶纤维素超声合成的纳米晶纤维素(NCC)具有作为天然和绿色基质用于合成纳米银的能力。采用阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)作为NCC的改性剂和稳定剂。用傅里叶变换红外光谱(FT-IR)对合成的Ag/CTAB/NCC进行了结构表征;场发射扫描电镜;透射电镜;能谱(EDS)和x射线衍射(XRD)。XRD谱图证实银纳米颗粒为单立方相,晶粒尺寸约为30 nm。通过两种方法在较短时间内还原某些有毒偶氮甲基橙染料(MO)和4-硝基酚(4- np)的芳香硝基化合物,分析了Ag/CTAB/NCC的催化活性。MO还原为联氨衍生物,4-NP还原为4-氨基苯酚的过程具有准一级速率常数。方法(2)(mmol NaBH4/mmol MO = 250,催化剂42 mg)与方法(1)(mmol NaBH4/mmol MO = 400,催化剂5 mg)相比,随着催化剂用量的增加,还原时间有规律地缩短,还原速率(k)提高了3倍。结果表明,球形AgNPs固定化ctab吸附的NCC对甲基橙(k = 14.2 × 10-3 s-1, t =150 s)和4-硝基苯酚(k = 5.4 × 10-3 s-1, t = 180 s)的去除具有较好的催化活性和较短的还原时间,可作为一种有效的废水催化处理方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Nanostructures
Journal of Nanostructures NANOSCIENCE & NANOTECHNOLOGY-
CiteScore
2.60
自引率
0.00%
发文量
0
审稿时长
7 weeks
期刊介绍: Journal of Nanostructures is a medium for global academics to exchange and disseminate their knowledge as well as the latest discoveries and advances in the science and engineering of nanostructured materials. Topics covered in the journal include, but are not limited to the following: Nanosystems for solar cell, energy, catalytic and environmental applications Quantum dots, nanocrystalline materials, nanoparticles, nanocomposites Characterization of nanostructures and size dependent properties Fullerenes, carbon nanotubes and graphene Self-assembly and molecular organization Super hydrophobic surface and material Synthesis of nanostructured materials Nanobiotechnology and nanomedicine Functionalization of nanostructures Nanomagnetics Nanosensors.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信