Interactions between benzotriazole and corncob biochars pyrolyzed at different temperature

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2016-12-01 DOI:10.26599/jgse.2016.9280036

C. Xing, C. Yu, Erping Bi, Jin’e Dai

引用次数: 1

Abstract

: The sorption of ionizable benzotriazole (BTA) to corncob biochars pyrolyzed at different temperature ( i.e. , 300 º C, 500 º C and 800 º C) was investigated in this study. Biochars produced at higher temperature showed higher surface area, micropore volume and aromaticity. Consequently, the sorption of BTA changed from absorption to adsorption for biochars pyrolyzed at 300 º C and 800 º C, respectively. Solution pH affected speciation of BTA and surface charge properties of biochars. For BTA 0 , H-bond, partition and micropore filling are dominant sorption mechanisms. For BTA - , it is suggested that negative charge-assisted H-bond plays an important role in sorption. Corncob biochar pyrolyzed at high temperature ( e.g ., 800 º C) showed the highest sorption affinity for BTA. Ca 2+ in solution enhanced BTA - and BTA 0 sorption through cation-bridge and surface complexation.

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不同温度下苯并三唑与玉米芯生物炭的相互作用

研究了不同温度(300℃、500℃和800℃)热解玉米芯生物炭对可电离苯并三唑(BTA)的吸附。在较高温度下制备的生物炭具有较高的比表面积、微孔体积和芳香性。因此，在300℃和800℃热解的生物炭中，BTA的吸附由吸附变为吸附。溶液pH影响BTA的形态和生物炭的表面电荷性质。bta0的主要吸附机制为氢键、分块和微孔填充。对于BTA -，负电荷辅助氢键在吸附过程中起重要作用。玉米芯生物炭在高温下(如800℃)对BTA的吸附亲和力最高。溶液中的ca2 +通过阳离子桥和表面络合增强了BTA -和BTA 0的吸附。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.