科学研究

g-C3N4/TiO2吸附剂的制备及其对环丙沙星的去除研究

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  • 凯里学院理学院,凯里556011
李远勋(1986-),女,硕士,副教授,主要研究方向为新材料制备及应用,E-mail:164539492@qq.com。

收稿日期: 2020-06-05

  修回日期: 2021-06-18

  网络出版日期: 2021-09-30

基金资助

贵州省科学技术基金项目(黔科合LH字[2014]7222);国家自然科学基金(21501079)

Study on preparation of g-C3N4/TiO2 adsorbent and removal of ciprofloxacin

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  • College of Science,Kaili University,Kaili 556011

Received date: 2020-06-05

  Revised date: 2021-06-18

  Online published: 2021-09-30

摘要

根据不同的质量比w(g-C3N4)∶w(TiO2)制备了g-C3N4/TiO2复合吸附剂,并在暗环境下以环丙沙星(CIP)为目标去除物研究了g-C3N4/TiO2的吸附性能。通过X射线衍射仪、扫描电子显微镜、透射电子显微镜分别表征了g-C3N4/TiO2的结构和形貌。结果表明:所制备的g-C3N4/TiO2存在丰富的介孔结构,比表面积为143.5m2/g,总孔容为0.202cm3/g。w(g-C3N4)∶w(TiO2)=1的g-C3N4/TiO2对CIP的吸附效果最好,在pH=6~7区间内,吸附率取得最大值,吸附量随CIP浓度的增加而升高。

本文引用格式

李远勋, 张杨, 侯银玲 . g-C3N4/TiO2吸附剂的制备及其对环丙沙星的去除研究[J]. 化工新型材料, 2021 , 49(9) : 193 -197 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.09.042

Abstract

G-C3N4/TiO2 composite adsorbents were prepared according to different mass ratio w(g-C3N4)∶w(TiO2).The adsorption properties of g-C3N4/TiO2 were studied by using ciprofloxacin (CIP) as the target in dark room.The structure and morphology of g-C3N4/TiO2 were respectively characterized by X ray diffractometer,scanning electron microscope and transmission electron microscope.The results showed that the prepared g-C3N4/TiO2 adsorbents possessed abundant mesoporous structure with a specific surface area of 143.5m2/g,a total pore volume of 0.202cm3/g.The g-C3N4/TiO2 sample of w(g-C3N4)∶w(TiO2)=1 demonstrated the best adsorption effect on the CIP,the adsorption rate reached the maximum in the range of pH=6~7,and the adsorption amount rised with the increasing of the CIP concentration.

参考文献

[1] Leal R M P,Figueira R F,Tornisielo V L,et al.Occurrence and sorption of luoroquinolones in poultry litters and soils from Sao Paulo State,Brazil[J].Science of the Total Environment,2012,432:344-349.
[2] Sapkota A R,Curriero F C,Gibson K E,et al.Antibioticresistant enterococci and fecal indicators in surface water and groundwater impacted by a concentrated Swine feeding operation[J].Environmental Health Perspectives,2007,115(7):1040-1045.
[3] Ji Y,Ferronatope C,Salvador A,et al.Degradation of ciprofloxacin and sulfamethoxazole by ferrous-activated rsulfate:implications for remediation of groundwater contaminated by antibiotics[J].Science of the Total Environment,2014,472:800-808.
[4] 邹高龙,刘志文,董洁平,等.环丙沙星在污水处理过程中的迁移转化及对污水生物处理的影响[J].环境科学学报,2019,39(2):308-317.
[5] Chang P H,Jiang W T,Li Z,et al.Interaction of ciprofloxacin and probe compounds with palygorskite PFl-1[J].Journal of Hazardous Materials,2016,303:55-63.
[6] 商希礼,刘美玲,李长海,等.石墨相碳化氮复合材料的制备及其可见光光催化性能的研究[J].表面技术,2017,46(4):51-57.
[7] Tahira M B,Sagirb M,Shahzad K.Removal of acetylsalicylate and methyl-theobromine from aqueous environment using ano-photocatalyst WO3-TiO2@g-C3N4 composite[J].Journal of Hazardous Materials,2018,3894(18):30849-30880.
[8] 金瑞瑞,游继光,张倩,等.Fe掺杂g-C3N4的制备及其可见光催化性能[J].物理化学学报,2014,30(9):1706-1712.
[9] Chang F,Zhang J,Xie Y,et al.Fabrication,characlerization,and photocatalytic performance of exfoliated g-C3N4/TiO2 hybrids[J].Applied Surface Science,2014,311:574-581.
[10] Tahira M B,Sagirb M,Shahzad K.Removal of acetylsalicylate and methyl-theobromine from aqueous environment using nano-photocatalyst WO3-TiO2@g-C3N4 composite[J].Journal of Hazardous Materials,2018,18:30849-30854.
[11] Zhao Yanyan,Liang Xuhua,Wang Yongbo,et al.Degradation and removal of ceftriaxone sodium in aquatic environment with Bi2WO6/g-C3N4 photocatalyst[J].Journal of Colloid and Interface Science,2018,18:30334-30339.
[12] 宋旭,郑猛猛,胡芸,等.g-C3N4/{001}TiO2复合催化剂光催化氧化NO性能研究[J].化工新型材料,2016,44(7):211-213.
[13] Zhang Ping,Wang Yanbin,Zhou Yin,et al.Preparation and photocatalytic properties of magnetic g-C3N4/TNTs nanocomposites[J].Molecular Catalysis,2019,465:24-32.
[14] Gu L,Wang J,Zou Z,et al.Graphitic-C3N4-hybridized TiO2 nanosheets with reactive {001} facets to enhance the UV-and visible-light photocatalytic activity[J].Journal of Hazardous Materials,2014,268:216-223.
[15] Chun Y,Sheng G Y,Chiou C T,et al.Compositions and sorptive properties of crop residue-derived chars[J].Environmental Science & Technology,2004,38(17):4649-4655.
[16] Zhu X D,Liu Y C,Zhou C,et al.A novel porous carbon derived from hydrothermal carbon for efficient adsorption of tetracycline[J].Carbon,2014,77:627-636.
[17] Bo Longli,Liu Heng,Han Haixia.Photocatalytic degradation of trace carbamazepine in river water under solar irradiation[J].Journal of Environmental Management,2019,241:131-137.
[18] Fu H,Li X B,Wang J,et al.Activated carbon adsorption of quinolone antibiotics in water:performance,mechanism,and modeling[J].Journal of Environmental Sciences,2017,56:145-152.
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