Citation: Yuanyuan Ma, Zhangang Han, Shuo Zhang, Yifan Gao, Peixuan Zhang. Keggin-Type Tungstophosphate@G-C₃N₄ Pickering Emulsion Microreactor for Efficient Oxidation of Benzaldehyde[J]. University Chemistry, ;2023, 38(4): 199-206. doi: 10.3866/PKU.DXHX202210068 shu

Keggin-Type Tungstophosphate@G-C₃N₄ Pickering Emulsion Microreactor for Efficient Oxidation of Benzaldehyde

National Experimental Chemistry Teaching Center, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, China

Received Date: 26 October 2022

In this work, a 12-h comprehensive chemical experiment was designed. Based on the synthesis of Keggin-type polyoxometalate (POM) and the oxidation reaction of benzaldehyde in current textbooks, an amphiphilic two-dimensional material, g-C₃N₄, was introduced to construct a Keggin-type POM@Pickering emulsion microreactor, promoting the efficient oxidation of benzaldehyde and optimally designing the reaction site. Different from the original content, the selection of Keggin-type POM was improved from H₃PMo₁₂O₄₀ to K₃PW₁₂O₄₀. The unique antioxidant properties of K₃PW₁₂O₄₀ can promote the catalytic oxidation reaction. Importantly, the synthesis process of K₃PW₁₂O₄₀ is simple, raw materials are environmentally friendly and easy to obtain, and flammable solvents (such as diethyl ether) are not used. The amphiphilic g-C₃N₄ material with large specific surfaces, the hydrophilic group and conjugated skeleton in its structure, can simultaneously adsorb POM molecules, hydrogen peroxide, and benzaldehyde molecules, promoting the equimolar ratio conversion of hydrogen peroxide and benzaldehyde. The improved experiment is more consistent with the characteristics of “atomic economy” in green chemistry. Moreover, the combination of infrared spectroscopy and thin layer chromatography detection technologies can strengthen the integration of theoretical learning and practical operation. This work embodies the development of outcome based education (OBE) education for the cultivation of creative talents by introducing the frontier research into undergraduate experimental teaching, which is conducive to cultivate innovative consciousness of students and to improve their ability of comprehensive analysis and solving practical problems.
- Potassium tungstophosphate,
- g-C₃N₄,
- Pickering emulsion,
- Green chemistry,
- Benzaldehyde oxidation
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
  Zhang, Y.; Liu, J.; Li, S. L.; Su, Z. M.; Lan, Y. Q. EnergyChem. 2019, 1, 100021.
7. [7]
  Wang, S. S.; Yang, G. Y. Chem. Rev. 2015, 115, 4893.
8. [8]
  Lin, J.; Yang, S.; Jia, M.; Liu, J.; Li, X. M.; An, L.; Tian, Q.; Dong, L. Z.; Lan, Y. Q. J. Am. Chem. Soc. 2020, 142, 13982.
9. [9]
  Zheng, Y.; Liu, J.; Liang, J.; Jaroniec, M.; Qiao, S. Z. Energy Environ. Sci. 2012, 5, 6717.
10. [10]
  Wang, X.; Maeda, K.; Thomas, A.; Takanabe, K.; Xin, G.; Carlsson, J. M.; Domen, K.; Antonietti, M. Nat. Mater. 2009, 8, 76.
11. [11]
  Aveyard, R.; Binks, B. P.; Clint, J. H. Adv. Colloid Interface Sci. 2003, 100-102, 503.
12. [12]
  Xu, J. S.; Markus, A. J. Am. Chem. Soc. 2017, 139, 6026.
13. [13]
  Ye, M. Y.; Zhao, Z. H.; Hu, Z. F.; Liu, L. Q.; Ji, H. M.; Shen, Z. R.; Ma, T. Y. Angew. Chem. Int. Ed. 2017, 56, 8407.
1. [1]
  Qin Li , Ziyao Jia , Ye Chen , Mingze Ma , Lin Li , Tao Huang . A Journey into the Enigmatic World of Pickering Emulsion: A Chemical Science Popularization Experiment. University Chemistry, 2024, 39(9): 311-318. doi: 10.3866/PKU.DXHX202306035
2. [2]
  Xuejiao Wang , Suiying Dong , Kezhen Qi , Vadim Popkov , Xianglin Xiang . Photocatalytic CO₂ Reduction by Modified g-C₃N₄. Acta Physico-Chimica Sinica, 2024, 40(12): 2408005-. doi: 10.3866/PKU.WHXB202408005
3. [3]
  Guangming YIN , Huaiyao WANG , Jianhua ZHENG , Xinyue DONG , Jian LI , Yi'nan SUN , Yiming GAO , Bingbing WANG . Preparation and photocatalytic degradation performance of Ag/protonated g-C₃N₄ nanorod materials. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1491-1500. doi: 10.11862/CJIC.20240086
4. [4]
  Jianyu Qin , Yuejiao An , Yanfeng Zhang . In Situ Assembled ZnWO₄/g-C₃N₄ S-Scheme Heterojunction with Nitrogen Defect for CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408002-. doi: 10.3866/PKU.WHXB202408002
5. [5]
  Yingqi BAI , Hua ZHAO , Huipeng LI , Xinran REN , Jun LI . Perovskite LaCoO₃/g-C₃N₄ heterojunction: Construction and photocatalytic degradation properties. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 480-490. doi: 10.11862/CJIC.20240259
6. [6]
  Feng Han , Fuxian Wan , Ying Li , Congcong Zhang , Yuanhong Zhang , Chengxia Miao . Comprehensive Organic Chemistry Experiment: Phosphotungstic Acid-Catalyzed Direct Conversion of Triphenylmethanol for the Synthesis of Oxime Ethers. University Chemistry, 2025, 40(3): 342-348. doi: 10.12461/PKU.DXHX202405181
7. [7]
  Xue Dong , Xiaofu Sun , Shuaiqiang Jia , Shitao Han , Dawei Zhou , Ting Yao , Min Wang , Minghui Fang , Haihong Wu , Buxing Han . 碳修饰的铜催化剂实现安培级电流电化学还原CO₂制C₂₊产物. Acta Physico-Chimica Sinica, 2025, 41(3): 2404012-. doi: 10.3866/PKU.WHXB202404012
8. [8]
  Yihao Zhao , Jitian Rao , Jie Han . Synthesis and Photochromic Properties of 3,3-Diphenyl-3H-Naphthopyran: Design and Teaching Practice of a Comprehensive Organic Experiment. University Chemistry, 2024, 39(10): 149-155. doi: 10.3866/PKU.DXHX202402050
9. [9]
  Kai Han , Guohui Dong , Ishaaq Saeed , Tingting Dong , Chenyang Xiao . Morphology and photocatalytic tetracycline degradation of g-C3N4 optimized by the coal gangue. Chinese Journal of Structural Chemistry, 2024, 43(2): 100208-100208. doi: 10.1016/j.cjsc.2023.100208
10. [10]
  Guixu Pan , Zhiling Xia , Ning Wang , Hejia Sun , Zhaoqi Guo , Yunfeng Li , Xin Li . Preparation of high-efficient donor-π-acceptor system with crystalline g-C3N4 as charge transfer module for enhanced photocatalytic hydrogen evolution. Chinese Journal of Structural Chemistry, 2024, 43(12): 100463-100463. doi: 10.1016/j.cjsc.2024.100463
11. [11]
  Wenda WANG , Jinku MA , Yuzhu WEI , Shuaishuai MA . Waste biomass-derived carbon modified porous graphite carbon nitride heterojunction for efficient photodegradation of oxytetracycline in seawater. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 809-822. doi: 10.11862/CJIC.20230353
12. [12]
  Hualin Jiang , Wenxi Ye , Huitao Zhen , Xubiao Luo , Vyacheslav Fominski , Long Ye , Pinghua Chen . Novel 3D-on-2D g-C₃N₄/AgI._x._y heterojunction photocatalyst for simultaneous and stoichiometric production of H₂ and H₂O₂ from water splitting under visible light. Chinese Chemical Letters, 2025, 36(2): 109984-. doi: 10.1016/j.cclet.2024.109984
13. [13]
  Yanghanbin Zhang , Dongxiao Wen , Wei Sun , Jiahe Peng , Dezhong Yu , Xin Li , Yang Qu , Jizhou Jiang . State-of-the-art evolution of g-C3N4-based photocatalytic applications: A critical review. Chinese Journal of Structural Chemistry, 2024, 43(12): 100469-100469. doi: 10.1016/j.cjsc.2024.100469
14. [14]
  Ling Liu , Haibin Wang , Genrong Qiang . Curriculum Ideological and Political Design for the Comprehensive Preparation Experiment of Ethyl Benzoate Synthesized from Benzyl Alcohol. University Chemistry, 2024, 39(2): 94-98. doi: 10.3866/PKU.DXHX202304080
15. [15]
  Wenjiang LI , Pingli GUAN , Rui YU , Yuansheng CHENG , Xianwen WEI . C₆₀-MoP-C nanoflowers van der Waals heterojunctions and its electrocatalytic hydrogen evolution performance. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 771-781. doi: 10.11862/CJIC.20230289
16. [16]
  Zijian Zhao , Yanxin Shi , Shicheng Li , Wenhong Ruan , Fang Zhu , Jijun Jiang . A New Exploration of the Preparation of Polyacrylic Acid by Free Radical Polymerization Based on the Concept of Green Chemistry. University Chemistry, 2024, 39(5): 315-324. doi: 10.3866/PKU.DXHX202311094
17. [17]
  Jihua Deng , Xinshi Wu , Dichang Zhong . Exploration of Green Teaching and Ideological and Political Education in Chemical Experiment of “Preparation of Ammonium Ferrous Sulfate”. University Chemistry, 2024, 39(10): 325-329. doi: 10.12461/PKU.DXHX202405046
18. [18]
  Yinwu Su , Xuanwen Zheng , Jianghui Du , Boda Li , Tao Wang , Zhiyan Huang . Green Synthesis of 1,3-Dibromoacetone Using Halogen Exchange Method: Recommending a Basic Organic Synthesis Teaching Experiment. University Chemistry, 2024, 39(5): 307-314. doi: 10.3866/PKU.DXHX202311092
19. [19]
  Zihan Lin , Wanzhen Lin , Fa-Jie Chen . Electrochemical Modifications of Native Peptides. University Chemistry, 2025, 40(3): 318-327. doi: 10.12461/PKU.DXHX202406089
20. [20]
  Tingting Yu , Si Chen , Lianglong Sun , Tongtong Shi , Kai Sun , Xin Wang . Comprehensive Experimental Design for the Photochemical Synthesis, Analysis, and Characterization of Difluoropyrroles. University Chemistry, 2024, 39(11): 196-203. doi: 10.3866/PKU.DXHX202401022

Get Citation

PDF

XML

Metrics

PDF Downloads(13)
Abstract views(645)
HTML views(119)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Keggin-Type Tungstophosphate@G-C3N4 Pickering Emulsion Microreactor for Efficient Oxidation of Benzaldehyde

Metrics

通讯作者: 陈斌, bchen63@163.com

Keggin-Type Tungstophosphate@G-C₃N₄ Pickering Emulsion Microreactor for Efficient Oxidation of Benzaldehyde