Magnetic biochar from spent coffee grounds as filler in bioplastic composites

被引：1

作者：

Lopez-Mireles, Daniela A. ^{[1
]}

Velazquez-Galvan, Yenni G. ^{[2
]}

Encinas, Armando ^{[2
]}

机构：

[1] Inst Potosino Invest Cient & Tecnol, Div Mat Avanzados, Camino Presa San Jose 2055,Lomas 4ta, San Luis Potosi 78216, Mexico

[2] Inst Tecnol & Estudios Super Occidente, Dept Matemat & Fis, Periferico Sur Manuel Gomez Morin 8585, Tlaquepaque 45604, Jalisco, Mexico

来源：

MATERIALS LETTERS | 2024年 / 372卷

关键词：

Magnetic biochar; Pectin-based films; Magnetic properties; Sustainable materials; Thermal stability;

D O I：

10.1016/j.matlet.2024.137046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study focuses on the synthesis of magnetic biochar derived from spent coffee grounds and their use in biodegradable pectin composite films. X-ray diffraction and Raman spectroscopy confirmed an amorphous char structure with embedded crystalline magnetite in the magnetic biochar. For the composite films, the hysteresis loops show a magnetic behavior reminiscent of a soft magnet with a low coercive field of 90 Oe and 14 % remanence. Thermogravimetric analysis revealed improved thermal stability of the composite films compared to pure pectin films. The proposed approach offers enhanced thermal properties and magnetic functionality, with potential applications in sustainable packaging, electromagnetic shielding and environmental sensing.

引用

页数：4

共 50 条

[31] Novel electrochemical method to activate biochar derived from spent coffee grounds for enhanced adsorption of lead (Pb)
Kim, Jong -Gook
Kim, Hye-Bin
Baek, Kitae
SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 886
[32] Hydrothermal Carbonization of Spent Coffee Grounds
Kim, Hyeok-Jin
Oh, Sea-Cheon
APPLIED SCIENCES-BASEL, 2021, 11 (14):
[33] Valorization of spent coffee grounds: A review
Kovalcik, Adriana
Obruca, Stanislav
Marova, Ivana
FOOD AND BIOPRODUCTS PROCESSING, 2018, 110 : 104 - 119
[34] SPENT COFFEE GROUNDS FROM COFFEE VENDING MACHINES AS FEEDSTOCK FOR BIOGAS PRODUCTION
Vasmara, Ciro
Marchetti, Rosa
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, 2018, 17 (10): : 2401 - 2408
[35] Effect of Spent Coffee Grounds on the Crystallinity and Viscoelastic Behavior of Polylactic Acid Composites
de Bomfim, Anne Shayene Campos
de Oliveira, Daniel Magalhaes
Benini, Kelly Cristina Coelho de Carvalho
Cioffi, Maria Odila Hilario
Voorwald, Herman Jacobus Cornelis
Rodrigue, Denis
POLYMERS, 2023, 15 (12)
[36] Spent Coffee Grounds as Property Enhancing Filler in a Wholly Bio-Based Epoxy Resin
Tellers, Jonathan
Willems, Philippe
Tjeerdsma, Boke
Sbirrazzuoli, Nicolas
Guigo, Nathanael
MACROMOLECULAR MATERIALS AND ENGINEERING, 2021, 306 (11)
[37] Supercritical fluid extraction of lipids from spent coffee grounds
Couto, Ricardo M.
Fernandes, Joao
Gomes da Silva, M. D. R.
Simoes, Pedro C.
JOURNAL OF SUPERCRITICAL FLUIDS, 2009, 51 (02): : 159 - 166
[38] Biochar obtained by carbonization of spent coffee grounds and its application in the construction of an energy storage device
Andrade, Tatiana Santos
Vakros, John
Mantzavinos, Dionissios
Lianos, Panagiotis
CHEMICAL ENGINEERING JOURNAL ADVANCES, 2020, 4
[39] Biofuels from spent coffee grounds: comparison of processing routes
Marx, Sanette
Venter, Roelf
Karmee, Sanjib Kumar
Louw, Jaco
Truter, Chantelle
BIOFUELS-UK, 2022, 13 (05): : 537 - 543
[40] Lead Removal from Water by Adsorption on Spent Coffee Grounds
Lavecchia, Roberto
Medici, Franco
Patterer, Maria Silvina
Zuorro, Antonio
INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY BASED INNOVATIVE APPLICATIONS FOR THE ENVIRONMENT, 2016, 47 : 295 - 300

← 1 2 3 4 5 →