ONE-POT PREPARATION OF MAGNETIC BIOCHAR FROM DRAGON FRUIT BRANCH FOR CATALYTIC OZONATION OF SUNSET YELLOW

IF 0.5 Q4 EDUCATION & EDUCATIONAL RESEARCH

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI:10.31788/rjc.2023.1638383

H. Nguyen, H. Nguyen, Tuyet-Mai Tran-Thuy, L. Nguyen, H.H. Lam, D. V. Nguyen

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引用次数: 1

Abstract

Dragon fruit branches are an abundant and underutilized waste released from the annual pruning of dragon fruit. In this study, dragon fruit branches were used for the first time as a raw material for producing magnetic biochar through one-pot pyrolysis. The results showed that zero-valent iron and magnetite particles were generated in the carbon matrix, providing a saturation magnetization of 5.92 emu/g. Due to FeCl3 activation, magnetic biochar possessed a total pore volume of 0.15 cm3 /g and a specific surface area of 203 m2 /g. Subsequently, magnetic biochar was explored as a catalyst for enhanced ozonation of sunset yellow. 95% of sunset yellow (50 ppm) was treated within 80 min at pH 7.0. From the calculation results using pseudo-first-order kinetics, the sunset yellow decolorization constant was improved by 79% by using the magnetic biochar catalyst compared to ozone alone. Overall, dragon fruit branchderived magnetic biochar is a promising material, especially as a green catalyst, because of its magnetic separability and potential catalytic activity for the treatment of sunset yellow by ozone.

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火龙果枝磁性生物炭一锅法催化臭氧氧化日落黄的研究

火龙果枝是火龙果每年修剪后释放的大量未充分利用的废弃物。本研究首次以火龙果枝为原料，采用一锅热解法制备磁性生物炭。结果表明:碳基体中生成了零价铁和磁铁矿颗粒，饱和磁化强度为5.92 emu/g;由于FeCl3的活化，磁性生物炭的总孔体积为0.15 cm3 /g，比表面积为203 m2 /g。随后，研究了磁性生物炭作为催化剂对日落黄臭氧化的促进作用。95%的日落黄(50 ppm)在pH 7.0条件下在80分钟内处理。从拟一级动力学计算结果来看，与单独使用臭氧相比，使用磁性生物炭催化剂可使日落黄脱色常数提高79%。总之，火龙果枝衍生的磁性生物炭由于其磁性可分离性和潜在的臭氧处理日落黄的催化活性，是一种很有前途的材料，特别是作为绿色催化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rasayan Journal of Chemistry Energy-Energy (all)

CiteScore

1.90

自引率

0.00%

发文量

196

期刊介绍： RASĀYAN Journal of Chemistry [RJC] signifies a confluence of diverse streams of chemistry to stir up the cerebral powers of its contributors and readers. By introducing the journal by this name, we humbly intent to provide an open platform to all researchers, academicians and readers to showcase their ideas and research findings among the people of their own fraternity and to share their vast repository of knowledge and information. The journal seeks to embody the spirit of enquiry and innovation to augment the richness of existing chemistry literature and theories. We also aim towards making this journal an unparalleled reservoir of information and in process aspire to inculcate and expand the research aptitude.