酸调节锆基MOF材料在光催化还原Cr(VI)的应用

doi:10.19677/j.issn.1004-7964.2022.03.001

皮革科学与工程 ›› 2022, Vol. 32 ›› Issue (3): 1-5.doi: 10.19677/j.issn.1004-7964.2022.03.001

• 试验研究 • 下一篇

酸调节锆基MOF材料在光催化还原Cr(VI)的应用

强涛涛^*, 尉梦笛

陕西科技大学,陕西西安 710021

收稿日期:2021-09-16 出版日期:2022-06-28 上线日期:2022-05-16
通讯作者: ^*
作者简介:强涛涛（1980- ）,男,博士,教授,E- mail: qiangtt515@163com。
基金资助:
陕西省教育厅青年创新团队建设科研计划项目（21JP014）; 陕西省重点科技创新团队（2020TD-009）; 陕西高校青年创新团队

Application of Acid-regulated Zr-MOF Material in Photocatalytic Reduction of Cr(VI)

QIAN Taotao^*, YU Mengdi

College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China

Received:2021-09-16 Online:2022-06-28 Published:2022-05-16

摘要/Abstract

摘要： 六价铬（Cr(VI)）是工业废水中典型的重金属污染物之一,易于被人体吸收,生物毒性大。光催化法是去除Cr(VI)的一种高效且清洁的方法。为了提升催化剂的催化效率,采用溶剂热法,利用三氟乙酸调节剂对UiO-66进行缺陷合成增大其比表面积与光生电子迁移率。通过XRD、SEM、BET等表征手段观察调节剂用量对UiO-66形貌和结构的影响,并考察了酸调节型UiO-66光催化还原Cr(VI)的活性。结果表明,经酸调节的UiO-66呈八面体纳米颗粒,比表面积为849.6 cm²/g。在可见光照射下,经酸调节的UiO-66光催化还原率提高了2.21倍。此外,自由基捕获实验表明,光生电子（e^-）和超氧自由基（·O₂^-）是光催化还原Cr(VI)的主要活性组分。

关键词: UiO-66, 酸调节剂, 光催化, 缺陷合成, 六价铬

Abstract: Hexavalent chromium (Cr(VI)) is one of the typical heavy metal pollutants in industrial wastewater, which can be absorbed by human being easily and has great biological toxicity. Photocatalysis is an efficient and clean method for Cr(VI)removal. In order to improve the efficiency of photocatalysts, the defect synthesis of UiO-66 with trifluoroacetic acid as the regulator was carried out by solvothermal method to increase the specific surface area and photogenic electron mobility. The influence of regulator dosage on the morphology and structure of UiO-66 were observed by XRD, SEM, BET, TGA and other characterization methods, and the photocatalytic reduction of Cr(VI) of acid adjusted UiO-66 was investigated. The results showed that the acid-adjusted UiO-66 was octahedral with a specific surface area of 849.6 cm²/g. Under visible light irradiation, the photocatalytic reduction rate of acid-adjusted UiO-66 increased by 2.21 times. In addition, free radical capture experiments indicated that photo-generated electrons (e^-) and superoxide radicals (·O₂^-) were the main active components for photoreduction of Cr(VI).

Key words: UiO-66, acid modulator, photocatalysis, defect synthesis, Cr(VI)

中图分类号:

强涛涛, 尉梦笛. 酸调节锆基MOF材料在光催化还原Cr(VI)的应用[J]. 皮革科学与工程, 2022, 32(3): 1-5.

QIAN Taotao, YU Mengdi. Application of Acid-regulated Zr-MOF Material in Photocatalytic Reduction of Cr(VI)[J]. Leather Science and Engineering, 2022, 32(3): 1-5.

参考文献

[1] 徐丽繁,廖伟名.金属-有机框架材料去除水中重金属Cr(VI)的研究进展[J].化工环保,2021,41(1):19-26.
[2] 梁艳. 关于离子交换法对含Cr(VI)废水进行处理的研究[J].科学技术创新,2020(17):47-48.
[3] ZHU C S,QIU L,SONG J,et al.Removal of hexavalent chromium-contaminated wastewater by micro-emulsion liquid membrane method[J].Advanced Materials Research,2012,356(1):1962-1966.
[4] YANG J,YU M,CHEN W,et al.Adsorption of hexavalent chromium from aqueous solution by activated carbon prepared from longan seed:Kinetics,equilibrium and thermodynamics[J].Journal of Industrial and Engineering Chemistry,2015,21:414-422.
[5] YUAN G,LI F,LI K,et al.Research Progress on Photocatalytic Reduction of Cr(VI)in Polluted Water[J].Bulletin of the Chemical Society of Japan,2020,94(4):1142-1155.
[6] CHEN Y,WANG X.Template-free synthesis of hollow g-C₃N₄ polymer with vesicle structure for enhanced photocatalytic water splitting[J].The Journal of Physical Chemistry C,2018,122(7):3786-3793.
[7] UMAPPATHI S,MASUD J,ABDURAZAG T,et al.FeNi₂Se₄ -reduced graphene oxide nanocomposite:Enhancing bifunctional electrocatalytic activity for oxygen evolution and reduction through synergistic effects[J].Advanced Sustainable Systems,2017,1(10):1700086.
[8] YANG J,NIU X J,AN S,et al.Facile synthesis of Bi₂MoO₆-MIL-100(Fe)metal-organic framework composites with enhanced photocatalytic performance[J].Rsc Advances,2017,7(5):2943-2952.
[9] ZHANG X,YANG Y,HUANG W,et al.g-C₃N₄/UiO-66 nanohybrids with enhanced photocatalytic activities for the oxidation of dye under visible light irradiation[J].Materials Research Bulletin,2018,99:349-358.
[10] ZHOU H C,JEFFREY R L,OMAR M Y.Introduction to Metal-Organic Frameworks[J].Chemical Reviews,2012,112(2):673-674.
[11] DHAKSHINAMORTHY A,ASIRIi M,GARCIA H.Metal-organic framework compounds:Photocatalysts for redox reactions and solar fuel production[J].Angewandte Chemie,2016,55(18):5414.
[12] QIU J H,YANG L Y,LI M,et al.Metal nanoparticles decorated MIL-125-NH₂ and MIL-125 for efficient photocatalysis[J].Materials Research Bulletin,2019,112:297-306.
[13] XIE H,MA D,LIU W,et al.Zr-Based MOFs as new photocatalysts for the rapid reduction of Cr(VI)in water[J].New Journal of Chemistry, 2020, 44: 7218-7225.
[14] QIN X T,QIANG T T,CHEN L,et al.Construction of 3D N-CQD/MOF-5 photocatalyst to improve the photocatalytic performance of MOF-5 by changing the electron transfer path[J].Microporous and Mesoporous Materials,2021,(315):110889.
[15] DISSEMINATE S,EPP K,HEINZ W.R,et al.Defective Metal-Organic Frameworks[J].Advance.Materials, 2018,30(37):e1704501.
[16] SLATER B,WANG Z,JIANG S X,et al.Missing Linker Defects in a Homochiral Metal-Organic Framework:Tuning the Chiral Separation Capacity[J]. Journal of the American Chemical Society,2017,139(50):18322-18327.
[17] WANG Y X,ZHONG Z,MUHAMMAD Y,et al.Defect engineering of NH2-MIL-88B(Fe)using different monodentate ligands for enhancement of photo-Fenton catalytic performance of acetamiprid degradation[J].Chemical Engineering Journal,2020,398(15):125684.
[18] CAVKA J H,JAKOBSEN S,OLSBYE U,et al.A new zirconium inorganic building brick forming metal organic frameworks with exceptional stability[J].Journal of the American Chemical Society,2008,130(42):13850-13851.
[19] 谢沙,彭小玉,毕军平.二苯碳酰二肼分光光度法测定水中六价铬的不确定度研究[J].绿色科技,2020(12):138-141.
[20] QI X M,WU Q,WANG X,et al.Design of UiO-66@BiOIO3 heterostructural composites with remarkable boosted photocatalytic activities in removing diverse industrial pollutants[J].Journal of Physics and Chemistry of Solids,2021,151:109903.
[21] TAN K,PANDEY H,WANG H,et al.Defect Termination in the UiO-66 Family of Metal-Organic Frameworks:The Role of Water and Modulator[J].Journal of the American Chemical Society,2021,143(17):6328-6332.
[22] 白杨,张尔攀,赵红挺.缺陷UiO-66对水中塑化剂的吸附[J].化工进展,2018,37(3):1062-1069.
[23] JING L Q,QU Y C,WANG B Q,et al.Review of photoluminescence performance of nano-sized semiconductor materials and its relationships with photocatalytic activity[J].Solar Energy Materials and Solar Cells, 2006, 90: 1773-1787.
[24] 胡俊俊,丁同悦,陈奕桦,等.Ag₃PO₄/g-C₃N₄复合材料的制备及其光催化性能[J].精细化工,2021,38(3):483-488.

酸调节锆基MOF材料在光催化还原Cr(VI)的应用

Application of Acid-regulated Zr-MOF Material in Photocatalytic Reduction of Cr(VI)

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