Page 184 - 《精细化工》2021年第5期
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第 38 卷第 5 期                             精   细   化   工                                  Vol.38, No.5
             202 1 年 5 月                             FINE CHEMICALS                                 May  2021


              水处理技术与环境保护
                    山竹壳合成贝壳粉负载纳米铁催化降解铬黑 T



                                                *
                            王昕玮,罗盛旭 ,邓   琴,霍佳佳,仝   壮,王燕诗
                         (海南大学  理学院  热带岛屿资源先进材料教育部重点实验室,海南  海口  570228)


                 摘要:以山竹壳提取液和贝壳粉制备了贝壳粉负载的纳米零价铁(MS-NZVI/SP),探究其催化铬黑 T 的类芬顿
                 降解效果。采用 SEM、XRD、FTIR 等手段对制备的材料进行表征。结果表明,MS-NZVI/SP 被成功制备,且呈
                 均匀球状颗粒,表面覆盖了有机物多酚,具有较好的稳定性和重复使用性。通过单因素实验优化了 MS-NZVI/SP
                 对铬黑 T 降解性能,得到优化条件为:贝壳粉与纳米零价铁负载质量比 1∶1,温度 35  ℃,溶液 pH 为 3,投加
                 4 mL 过氧化氢(质量分数 5%),100 mg 合成的材料。在优化条件下,铬黑 T(50 mg/L)的降解效率可达 93.01%,
                 其降解过程符合准二级动力学模型。
                 关键词:山竹壳;贝壳粉负载纳米铁;绿色制备;铬黑 T;类芬顿降解;水处理技术
                 中图分类号:X703;O643.36      文献标识码:A      文章编号:1003-5214 (2021) 05-1038-07



                       Preparation of mangosteen shell synthetic shell powder loaded
                             nano iron and its degradation of Eriochrome Black T


                                                 *
                     WANG Xinwei, LUO Shengxu , DENG Qin, HUO Jiajia, TONG Zhuang, WANG Yanshi
                 (Key Laboratory of Advanced Materials of Tropical  Island  Resources, Ministry of Education, School  of Science,
                 Hainan University, Haikou 570228, Hainan, China)


                 Abstract: Shell powder loaded with nano zero valent iron (MS-NZVI/SP) was prepared by mangosteen
                 shell extract and shell powder and was used to investigate the Fenton-like degradation effect of Eriochrome
                 Black T. The  prepared samples were characterized  by SEM, XRD and FTIR.  The  results showed that
                 MS-NZVI/SP was successfully prepared and displayed uniform spherical particles. The surface of
                 MS-NZVI/SP was  covered with organic  polyphenols. Furthermore, it had good stability and reusability.
                 The degradation  performance of Eriochrome Black T  on MS-NZVI/SP  was optimized by single  factor
                 experiments. The optimized conditions were as follows: loading mass ratio of shell powder to nano zero
                 valent iron of 1∶1, temperature of 35  ℃, pH of solution of 3, hydrogen peroxide (mass fraction of 5%)
                 dosage  of 4  mL, synthetic material of  100 mg.  Under these conditions, the degradation efficiency of
                 Eriochrome Black T (50 mg/L) could  reach 93.01%. The degradation  process  of Eriochrome Black T
                 conformed to the quasi-secondary kinetic model.
                 Key words:  mangosteen shell; shell powder loaded  nano iron; green preparation;  Eriochrome Black T;
                 Fenton-like degradation; water treatment technology


                                                                                                          [3]
                 中国是一个工业大国,工业生产所产生的废水                          环相连的氮氮双键,具有复杂且稳定的分子结构 ,
            对环境造成巨大的污染。其中,印染废水具有量大、                            降解难度大,长期接触会刺激眼睛、皮肤、粘膜组
                                                                                                        [1]
            色度深、难降解等特点,是一类不可忽视的污染物,                            织和呼吸器官,轻则引发过敏,重则诱发癌症 。
            对生态环境和人类健康都会造成严重危害                    [1-2] 。印染        本文以铬黑 T(EBT)为代表模拟偶氮染料废
            废水中大部分为偶氮染料,其含有与一个或多个芳                             水开展研究,此前已有对于降解 EBT 的研究,JONG

                 收稿日期:2020-09-28;  定用日期:2020-12-09; DOI: 10.13550/j.jxhg.20200901
                 基金项目:国家自然科学基金(21767008);海南大学教学名师工作室项目(hdms202005)
                 作者简介:王昕玮(1997—),女,硕士生,E-mail:1031060352@qq.com。联系人:罗盛旭(1964—),男,教授,E-mail:shxluo525@
                 126.com。
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