Endowing g‐C3N4 Membranes with Superior Permeability and Stability by Using Acid Spacers

摘要

Abstract > g‐C <sub>3</sub> N <sub>4</sub> membranes were modulated by intercalating molecules with SO <sub>3</sub> H and benzene moieties between layers. The intercalation molecules break up the tightly stacking structure of g‐C <sub>3</sub> N <sub>4</sub> laminates successfully and accordingly the modified g‐C <sub>3</sub> N <sub>4</sub> membranes give rise to two orders magnitude higher water permeances without sacrificing the separation efficiency. The sulfonated poly(2,6‐dimethyl‐1,4‐phenylene oxide) (SPPO)/g‐C <sub>3</sub> N <sub>4</sub> with a thickness of 350?nm presents an exceptionally high water permeance of 8867?L?h ?1 ?m ?2 ?bar ?1 and 100?% rejection towards methyl blue, while the original g‐C <sub>3</sub> N <sub>4</sub> membrane with a thickness of 226?nm only exhibits a permeance of 60?L?h ?1 ?m ?2 ?bar ?1 . Simultaneously, SO <sub>3</sub> H sites firmly anchor nitrogen with base functionality distributing onto g‐C <sub>3</sub> N <sub>4</sub> through acid–base interactions. This enables the nanochannels of g‐C <sub>3</sub> N <sub>4</sub> based membranes to be stabilized in acid, basic, and also high‐pressure environments for long periods. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > GC <sub> 3 </ sub> N. <sub> 4 </ sub> 通过将分子与所以嵌入分子来调节膜 <sub> 3 </ sub> H和层之间的苯部分。插层分子破坏了G-C的紧密堆叠结构 <sub> 3 </ sub> N. <sub> 4 </ sub> 层压板成功并相应地修改了G-C <sub> 3 </ sub> N. <sub> 4 </ sub> 膜在不牺牲分离效率的情况下产生两个订单较高的水渗透性。磺化聚（2,6-二甲基-1,4-亚苯基）（SPPO）/ G-C. <sub> 3 </ sub> N. <sub> 4 </ sub> 厚度为350？nm呈现出8867的极高的水渗透率为8867？？1 </ sup> m ？2 </ sup> ？酒吧？1 </ sup> 和100？％逆向甲基蓝色，而原来的G-C <sub> 3 </ sub> N. <sub> 4 </ sub> 厚度为226Ω·纳米的膜仅表现出60？L？H的渗透率？1 </ sup> m ？2 </ sup> ？酒吧？1 </ sup> 。同时，所以 <sub> 3 </ sub> H网站牢固地锚定氮气用基础功能分配到G-C <sub> 3 </ sub> N. <sub> 4 </ sub> 通过酸碱相互作用。这使得G-C的纳米烷基尔 <sub> 3 </ sub> N. <sub> 4 </ sub> 长时间，基于基于酸，碱性和高压环境的膜稳定。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-19011/'>《Angewandte Chemie》</a> <b style="margin: 0 2px;">|</b><span>2019年第46期</span><b style="margin: 0 2px;">|</b><span>共6页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1188.html" title="应用化学">应用化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=g-C3N4&option=203" rel="nofollow">g-C3N4;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=graphene&option=203" rel="nofollow">graphene;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=membranes&option=203" rel="nofollow">membranes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nanofiltration&option=203" rel="nofollow">nanofiltration;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=2D materials&option=203" rel="nofollow">2D materials;</a> </p> <div class="translation"> 机译：G-C3N4;石墨烯;膜;纳滤;2D材料; 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