化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (10) : 81-85. DOI: 10.19817/j.cnki.issn1006-3536.2022.10.016

新材料与新技术

磷酸银-聚醚砜复合膜的制备及其吸附去除溴离子研究

管若伶, 孙畅

作者信息 +

Study on preparation of Ag₃PO₄/PES composite membrane and its adsorption and removal of Br^-

Guan Ruoling, Sun Chang

Author information +

文章历史 +

Received		Published
2021-06-30		2022-10-20
Issue Date	Revised Date
2022-11-01	2021-06-30

PDF

摘要

利用原位合成法制备了磷酸银-聚醚砜复合膜材料,通过扫描电镜对复合膜材料表面形貌特征进行了分析。在吸附实验中,通过改变复合膜的吸附条件:磷酸银用量、吸附接触时间、吸附温度、待吸附溴离子溶液的初始pH,探究其对复合膜吸附水中溴离子性能的影响,同时对该吸附过程进行了吸附动力学的分析。结果表明:该复合膜材料对水溶液中的溴离子具有较高的吸附量和吸附率。当m(Ag₃PO₄)/m(PES)的值(质量分数)为0.5,吸附时间为6h,吸附温度为25℃、溶液初始pH为7时,复合膜材料对水中溴离子的吸附性能较好,优化条件下,复合膜对水溶液中溴离子的吸附量最高可达57.23mg/g,吸附率最高可达88.04%。复合膜吸附水中溴离子过程与准二级动力学模型相符,且拟合值可达0.99。

Abstract

Silver phosphate/polyethersulfone (Ag₃PO₄/PES) composite membranes were prepared by in-situ synthesis,and analyzed the surface morphology of the membranes by SEM.In the adsorption experiments,by changing the adsorption conditions of the membranes:the amount of Ag₃PO₄,adsorption contact time,adsorption temperature,initial pH of Br^- solution to be adsorbed to investigate the effect of the membranes on the properties of Br^- in water.At the same time,the adsorption kinetics of the adsorption process was analyzed.The results showed that the membranes had high adsorption capacity and rate for Br^- in aqueous solution.When the value of m(Ag₃PO₄)/m(PES) was 0.5,the adsorption time was 6h,the adsorption temperature was 25℃,and the initial pH value of solution was 7,the adsorption performance of the membranes to Br^- in water was better.Under the optimized conditions,the adsorption capacity of the membranes to Br^- in aqueous solution can reached 57.23mg/g,and the adsorption rate can reached 88.04%.The bromine ion process in the adsorption water of the membranes was consistent with the Pseudo-second-order kinetic model,and the fitting value can reached 0.99.

关键词

溴离子 / 磷酸银 / 吸附 / 聚醚砜 / 原位合成法

Key words

bromine ion / silver phosphate / adsorption / polyethersulfone / in-situ synthesis

引用本文

引用格式 ▾

磷酸银-聚醚砜复合膜的制备及其吸附去除溴离子研究[J]. 化工新型材料, 2022, 50(10): 81-85 DOI:10.19817/j.cnki.issn1006-3536.2022.10.016

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] 郑礼深,王立军,宋俊杰.饮用矿泉水中溴酸盐的控制[J].酒·饮料技术装备,2021(1):54-56.
[2] 王艳萍,郭于枫,张玲帆.IC-ICP-MS联用技术同时测定饮用水中砷、铬、碘、溴四种元素的不同形态[J].分析试验室,2021,40(7):827-831.
[3] Vallelonga Paul,de Gois Jefferson S,Borges Daniel L G,et al.Concentration and isotopic composition of bromine and chlorine in Antarctic sea ice[J].Geochimica et Cosmochimica Acta,2021,293:18-27.
[4] 张晓,纪志永,汪婧,等.电氧化法地下卤水提溴探究及条件优化[J].化工学报,2021,72(4):2123-2131.
[5] 胡新笑,侯兴旺,刘倩,等.氯/溴稳定同位素分析技术及其在环境科学研究中的应用[J].环境化学,2021,40(2):331-342.
[6] 李锋丽,孙倩芸,许爱华,等.水中溴溶液标准物质的研制[J].分析仪器,2021(1):71-74.
[7] 张冬艺,张峰,李红艳,等.电活化过硫酸盐处理含溴水时含溴副产物的生成[J].太原理工大学学报,2021,52(2):177-185.
[8] 贾慧瑛.生活饮用水中氯酸盐、亚氯酸盐和溴酸盐的离子色谱测定法[J].现代食品,2020(23):181-183.
[9] 查晓松.饮用水消毒过程中溴代消毒副产物生成的研究进展[J].环境科学与管理,2020,45(11):106-110.
[10] Zhang Xiao,Ji Zhiyong,Liu Fu,et al.Investigation of electrochemical oxidation technology for selective bromine extraction in comprehensive utilization of concentrated seawater[J].Separation and Purification Technology,2020,248:1-9.
[11] 王俊议,陈九玉,王鹏,等.银负载改性焙烧态水滑石及其碘离子吸附性能[J].中国粉体技术,2020,26(4):21-27.
[12] 卫雅伟,张宝忠,刘永德.化学法去除饮用水中溴酸盐的研究进展[J].科技视界,2019(23):47-48.
[13] Zhang Qi,Liu Wei,Chai Shujing,et al.The application of structured packing in industrial extraction of bromine from concentrated seawater[J].IOP Conference Series:Earth and Environmental Science,2019,252(4):1-6.
[14] 朱云华,丁磊,钟梅英,等.载银沸石吸附去除水中溴离子的特性研究[J].硅酸盐通报,2015,34(7):1857-1863.
[15] Gong Chenhao,Zhang Zhongguo,Qian Qingli,et al.Removal of bromide from water by adsorption on silver-loaded porous carbon spheres to prevent bromate formation[J].Chemical Engineering Journal,2013,218:333-340.
[16] 钟玮鸿,韩雪雯,刘畅,等.磷酸银/二硫化钼对碘离子的吸附性能试验研究[J].湿法冶金,2019,38(6):476-484.