由於蛇紋石在氣態下與二氧化碳進行吸收無法達到很好的效率，因此本研究試圖利用氫氧化鎂取代之。本實驗運用花蓮礦藏豐富之蛇紋石，經由HCl進行水熱處理後，以NaOH調節pH值製備而成的，表面積大約為81m2/g。並由XRD證明為氫氧化鎂的晶相，且已可得到很高的轉化率。
熱重分析儀中以恆溫和非恆溫之熱重分析方法與固定化反應器分析研究氫氧化鎂之吸收和脫附，反映出Mg(OH)2-lab2較商業化有更好的吸收效率，因此證實Mg(OH)2-lab2在對於固定二氧化碳有較好的優勢。另外，在動力學實驗方面，氫氧化鎂脫OH基及碳酸化之動力學研究，是以等溫方法來分析，發現contracting-sphere (or phase-boundary-reaction) 能套適氫氧化鎂在TGA反應中的反應機制，因此可以透過模式來預測不同反應條件的行為。

Because it is unable to reach a very good efficiency that the serpentine is absorbed with the carbon dioxide under the gaseous state, this research attempts to utilize magnesium hydroxide to replace it. This uses the abundant serpentine of mineral of Hualian, from hydrothermal treatment followed by HCl, regulated with NaOH, the magnesium hydroxide surface area was probably 81m2/g. The crystal phase from XRD proof that magnesium hydroxide obtained the high conversion rate.

In isothermal and nonisothermal thermorgravimetric analyses and fixation, reflected Mg(OH)2-lab2 compares commercial to have the better efficiency in adsorption. This examined Mg(OH)2 - lab2 was advantageous for commercial magnesium hydroxide. From using isothermal TGA for kinetics of thermal dehydroxylation and carbonation of magnesium hydroxide. The result showed that it can be fitted within contracting-sphere (or phase-boundary-reaction). And the behavior of magnesium hydroxide can be predicted at different conditions by contracting-sphere (or phase-boundary-reaction) model.

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