私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

搜索:  
44 Conversion of polystyrene into porous carbon sheet and hollow carbon shell over different magnesium oxide templates for efficient removal of methylene blue  
44 Conversion of polystyrene into porous carbon sheet and hollow carbon shell over different magnesium oxide templates for efficient removal of methylene blue
資料類型: PDF文件
關鍵詞: magnesium  oxide  
資料大小: 1942k
所屬學科: 功能高分子
來源: 來源網絡
簡介:
Conversion of waste polymer on a metal-free catalyst is a promising method for the preparation of nanocarbons. Herein, we synthesized porous carbon sheets and hollow carbon shells through the carbonization of polystyrene on magnesium oxide with different morphologies at 700 °C using a one-pot method. The morphologies, microstructure, phase structure, surface element composition, thermal stability, and textural properties of the obtained nanocarbons were analyzed by SEM, TEM, XRD, TGA, and Raman. The yield of the nanocarbons increased as the weight ratio of magnesium oxide to polystyrene increased. Magnesium oxide acted as a template for the shape-controlled growth of the carbon nanostructure. The surface area of the porous carbon sheets and hollow carbon shells reached 854 and 523 m2 g?1 without any activation, respectively. The porous carbon sheets were used as adsorbents to remove methylene blue from water and showed an adsorption capacity of 358.8 mg g?1. Product composition for the pyrolysis of polystyrene in the presence of magnesium oxide was analyzed using GC and GC-MS to elucidate the reaction mechanism. The yield of styrene in the liquid products reached 50% by the catalysis of polygonal magnesium oxide. This strategy provides a cheap and sustainable catalyst for converting polymer into high-value nanocarbons and useful chemicals.
上傳人: gongjiang_hust
上傳時間: 2018-09-30 23:20:22
下載次數: 0
消耗積分: 0  
立即下載:
1人
1人
1人
友情提示:下載后對該資源進行評論,即可獎勵2分。
報告錯誤:  1.下載無效  2. 資料明顯無價值  3. 資料重復存在

相關評論 共有0人發表評論 更多評論
你還沒有登錄,無法發表評論,請首先 登錄 注冊
免責聲明:本站部分資源由網友推薦,來自互聯網,版權屬于原版權人,如果不慎侵犯到您的權利,敬請告知,我們會在第一時間撤除。本站中各網友的評論只代表其個人觀點,不代表本站同意其觀點。
主站蜘蛛池模板: 喀喇沁旗| 南汇区| 青铜峡市| 汝阳县| 连南| 方城县| 同仁县| 桓台县| 民丰县| 稷山县| 蓬莱市| 政和县| 资源县| 板桥市| 大宁县| 天长市| 高要市| 洱源县| 磐石市| 安吉县| 远安县| 雅江县| 康马县| 改则县| 浏阳市| 松滋市| 古丈县| 平果县| 峨眉山市| 玉龙| 石林| 屯昌县| 宾川县| 炎陵县| 兴隆县| 望都县| 竹北市| 桑植县| 古田县| 青铜峡市| 罗山县|