Page 109 - 《精细化工》2020年第11期
P. 109

第 37 卷第 11 期                            精   细   化   工                                 Vol.37, No.11
             2020 年 11 月                             FINE CHEMICALS                                 Nov.    2020


              功能材料
                              +
                           K 掺杂 g-C N 污泥基复合材料的制备
                                               3
                                                   4
                                              及其光催化性能



                                      1
                                                   1*
                                                                                           1
                                                                               1
                             马立标 ,张   宾 ,柳荣展                    1,2 ,张   颖 ,詹丽凡
                 (1.  青岛大学  纺织服装学院,山东  青岛    266071;2.  山东省生态纺织协同创新中心,山东  青岛
                 266071)
                                                                                  +
                 摘要:以水性油墨废水絮凝污泥、三聚氰胺和 K 2 CO 3 为原料,采用煅烧法制备了 K 掺杂石墨相氮化碳污泥基复
                 合材料(AC/K-CN),利用 XRD、UV-Vis DRS、FTIR、XPS、BET、SEM 和 PL 光谱对 AC/K-CN 的晶体结构、
                 形貌和光电性能进行了表征。可见光照射下,将 AC/K-CN 用于光催化降解阳离子蓝 X-GRRL。结果表明,
                 AC/K-CN 对阳离子蓝 X-GRRL 的光催化活性明显高于纯石墨相氮化碳(g-C 3 N 4 )或碳化污泥(AC),这归因于
                 AC/K-CN 有效的电子-空穴分离。与 AC 和纯 g-C 3 N 4 相比,AC/K-CN 在模拟日光下对质量浓度为 20 mg/L 的阳
                 离子蓝 X-GRRL 的降解率分别提高了 43.17%和 46.76%。
                                 +
                 关键词:g-C 3 N 4 ;K 掺杂;可见光光催化;水性油墨废水;复合材料;碳化污泥
                 中图分类号:X703.1; O643.36; O644.1      文献标识码:A      文章编号:1003-5214 (2020) 11-2255-07



                          Preparation and photocatalytic performance of potassium
                                      doped g-C 3N 4 sludge-based composite


                                                                 1,2
                                    1
                                                                                              1
                                                                                1
                                                  1*
                           MA Libiao , ZHANG Bin , LIU Rongzhan , ZHANG Ying , ZHAN Lifan
                 (1. College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, China; 2. Shandong Ecological
                 Textile Collaborative Innovation Center, Qingdao 266071, Shandong, China)
                           +
                 Abstract: K  doped graphitic phase carbon nitride sludge-based composite (AC/K-CN) was prepared by
                 calcination  method  using  flocculation  sludge  of  water-based  ink  wastewater,  melamine  and  potassium
                 carbonate as raw materials. The crystal structure, morphology and photoelectric properties of the composite
                 were characterized by XRD, UV-Vis DRS, FTIR, XPS, BET, SEM and PL. The composite was applied to
                 remove cationic blue X-GRRL from aqueous solution under visible-light irradiation. The results showed
                 that the photocatalytic activity of AC/K-CN on cationic blue X-GRRL was higher than that of pure graphite
                 phase carbon nitride (g-C 3N 4) or carbonized sludge (AC), which is attributed to the effective electron-hole
                 separation  of  the  composite.  Compared  with  AC  and  pure  g-C 3N 4,  AC/K-CN  composite  increased  the
                 degradation rate of cationic blue X-GRRL with a mass concentration of 20 mg/L by 43.17% and 46.76%
                 under simulated sunlight.
                                     +
                 Key  words: g-C 3N 4;  K   doping;  visible  light  photocatalysis;  water-based  ink  wastewater;  composite;
                 carbonized sludge



                 随着现代工业的快速发展,环境污染与能源危                          环境问题中尤为突出,而印染废水的水质则更为复
            机问题日益严重,已成为人类生存和发展面临的两                             杂。众所周知,印染废水具有高色度、高有机物、
            个重大挑战      [1-2] 。因此,解决这两大问题是人类实现                  高化学需氧量(COD)、高生化需氧量(BOD)等
                                                                   [3]
            可持续发展的迫切需求。其中,水污染问题在众多                             特点 ,对环境污染极其严重,若不加以治理,将


                 收稿日期:2020-08-10;  定用日期:2020-09-27; DOI: 10.13550/j.jxhg.20200740
                 基金项目:国家自然科学基金(51508285);山东省重点研发计划(重大科技创新工程)项目(2019JZZY010507,2019JZZY020301)
                 作者简介:马立标(1995—),男,硕士生,E-mail:915602919@qq.com。联系人:张   宾(1983—),男,讲师,E-mail:bin-208@163.com。
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