Synthesis and characterization of pyrite (FeS2) using microwave irradiation

被引：52

作者：

Kim, Eun Jung ^{[1
]}

Batchelor, Bill ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Civil Engn, College Stn, TX 77843 USA

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 07期

关键词：

Chemical synthesis; Electron microscopy; REACTIONS FORMING PYRITE; SURFACE-STATES; MARCASITE; 100-DEGREES-C; MECHANISMS; OXIDATION;

D O I：

10.1016/j.materresbull.2009.02.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A procedure using microwave irradiation was studied to develop a fast and reliable method for synthesizing pyrite. Pyrite was successfully synthesized within a few minutes via reaction of ferric iron and hydrogen sulfide under the influence of irradiation by a conventional microwave oven. The SEM-EDX Study revealed that the nucleation and growth of pyrite occurred on the surface of elemental sulfur, where polysulfides are available. Compared to conventional heating, using microwave energy results in rapid (<1 min) formation of smaller particulates of pyrite. Higher levels of microwave power can form pyrite even faster, but faster reaction can lead to the formation of pyrite with defects. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1553 / 1558

页数：6

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