Modified Kapok Fibers (Ceiba pentandra (L.) Gaerth) for Oil Spill Remediation

被引：0

作者：

Oliveira, Leonardo M. T. M. ^{[1
]}

Fonseca, Eduardo J. S. ^{[2
]}

Bernardo, Vanderson B. ^{[3
]}

Zanta, Carmem L. P. S. ^{[3
]}

Oliveira, Lais F. A. M. ^{[2
]}

de Oliveira, Jennifer N. S. R. ^{[2
]}

de Souza, Samuel T. ^{[2
]}

Duarte, Jose Leandro da Silva ^{[4
]}

机构：

[1] Univ Fed Alagoas, Technol Ctr, Lab Mat Environm Remediat LabMARE, BR-57072900 Maceio, Alagoas, Brazil

[2] Univ Fed Alagoas, Phys Inst, Av Lourival Melo Mota,S N,Campus AC Simoes, BR-57072970 Maceio, Alagoas, Brazil

[3] Univ Fed Alagoas, Chem & Biotechnol Inst, Ave Lourival Melo Mota,S N,Campus AC Simoes, BR-57072970 Maceio, Alagoas, Brazil

[4] Univ Complutense Madrid, Fac Chem Sci, Dept Chem Engn & Mat, Ave Complutense S N, Madrid 28040, Spain

来源：

APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 24期

关键词：

oil spill remediation; oil affinity; natural materials; surface roughness; biosorption; SORPTION; SORBENT;

D O I：

10.3390/app142411995

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Featured Application This study evaluated different modifications with the goal of improving the natural features of vegetal fibers for application in the remediation of oil spill scenarios.Abstract The search for efficient oil spill remediation techniques leads to the use of physical, chemical, and biological methods, featuring both natural and modified lipophilic materials. Kapok fibers (Ceiba pentandra (L.) Gaerth) have been studied as a result of their unusual natural oil sorption capacity, which can be improved even further through physical or chemical treatments that augment their rugosity and alter their functional properties. Furthermore, the exact role of fiber morphology is not completely clear regarding the sorption process. Hence, this study investigated the efficacy of kapok fibers using different treatments, based on chemical and physical approaches, and characterized using advanced techniques (FTIR, SEM, AFM), aiming to improve the understanding of application possibilities in oil contamination scenarios. The results indicate that treatments using a low thermal intensity and low concentration do not lead to variation in sorption properties nor in surface structural features. Fiber rugosity varied from 4.40 to 12.35 nm, whereas an excessive increase in roughness was observed when the material was subject to more extreme conditions, such as a temperature of 120 degrees C and high concentrations (2.0 M) of both acid or alkali, accompanied by a loss in functionality and affecting the material sorption capacity. Thus, the study provides conditions to suggest that these treatments are not necessary for this type of material when inserted into sorption processes.

引用

页数：19