g-C3N4/CeO2/Ag三元纳米光催化剂的制备及其光催化性能研究

doi:10.3969/j.issn.2095-2198.2024.02.002

摘要
参考文献
相关文章
推荐阅读
Metrics

下载:

PDF (2540KB)
输出: BibTeX | EndNote (RIS)

摘要

通过简单的水热合成和光沉积方法，设计出将耦合半导体和沉积贵金属粒子两种改性方法集于一身的g-C₃N₄/CeO₂/Ag异质结光催化剂.通过XRD、TEM、UV-Vis DRS等对目标光催化剂进行表征，并通过其在可见光下对有机污染物（以甲基橙为例）的去除效果来评价其光催化活性.结果表明：耦合10.0%CeO₂和沉积2.0%Ag的g-C₃N₄/10.0%CeO₂/2.0%Ag异质结光催化剂的催化活性分别是纯g-C₃N₄和CeO₂的2.91倍和2.18倍.光催化活性的提高主要归因于复合材料间异质结构的形成和Ag纳米粒子的引入.

	服务
	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	（）
	作者相关文章

关键词: 光催化')" href="#">

光催化石墨相氮化碳稀土 Ag 异质结降解

Abstract:

A series of g-C₃N₄/CeO₂/Ag heterojunction photocatalysts were designed by combining two modification methods of coupling semiconductor and depositing precious metal particles through simple hydrothermal synthesis and photo deposition.The target photocatalyst was characterized by XRD,TEM and UV-Vis DRS,etc.,and through the removal of organic pollutants (methylene orange as an example) under visible light to evaluate its photocatalytic activity.The statistical results show that the catalytic activity of g-C₃N₄/10.0% CeO₂/2.0 %Ag heterojunction photocatalyst coupled with 10.0 %CeO₂ and 2.0 %Ag is 2.91 times and 2.18 times higher than that of pure g-C₃N₄ and CeO₂,respectively.The improvement of photocatalytic activity is mainly attributed to the formation of heterostructures between composite materials and the introduction of Ag nanoparticles.

Key words: photocatalysis')" href="#">

photocatalysis graphite phase carbon nitride rare earth elements Ag heterojunction degradation

出版日期: 2024-04-30 发布日期: 2024-12-31 整期出版日期: 2024-04-30

基金资助:

国家自然科学基金（51402198,21671139）

通讯作者: 高雨

作者简介: 礼峥（1995—），男（满族），辽宁沈阳人，硕士研究生在读，主要从事光催化领域的研究.

引用本文:

礼峥, 徐宝彤, 邱永堃, 丁茯, 孙亚光, 高雨.

g-C₃N₄/CeO₂/Ag三元纳米光催化剂的制备及其光催化性能研究 [J]. 沈阳化工大学学报, 2024, 38(2): 103-109.
LI Zheng, XU Baotong, QIU Yongkun, DING Fu, SUN Yaguang, GAO Yu.

Preparation of g-C₃N₄/CeO₂/Ag Ternary Nano-Photocatalyst and Its Photocatalytic Performance . Journal of Shenyang University of Chemical Technology, 2024, 38(2): 103-109.

链接本文:

https://xuebao.syuct.edu.cn/CN/10.3969/j.issn.2095-2198.2024.02.002 或 https://xuebao.syuct.edu.cn/CN/Y2024/V38/I2/103

［1］MA Y,WANG X L,JIA Y S,et al.Titanium Dioxide-Based Nanomaterials for Photocatalytic Fuel Generations［J］.Chemical Reviews,2014,114(19):9987-10043.

［2］TRAN P D,WONG L H,BARBER J,et al.Recent Advances in Hybrid Photocatalysts for Solar Fuel Production［J］.Energy & Environmental Science,2012,5(3):5902-5918.

［3］XIANG Q J,YU J G,JARONIEC M.Graphene-Based Semiconductor Photocatalysts［J］.Chemical Society Reviews,2012,41(2):782-796.

［4］常青侠,孙立恒,樊丽辉,等.Zn掺杂Bi₃NbO₇催化剂可见光降解甲基橙［J］,沈阳化工大学学报 2018,32(2):144-148.

［5］ZHOU X M,LIU N,SCHMIDT J,et al.Noble-Metal-Free Photocatalytic Hydrogen Evolution Activity:The Impact of Ball Milling Anatase Nanopowders with TiH₂［J］.Advanced Materials,2017,29(5):1604747.

［6］ZENG D Q,XU W J,ONG W J,et al.Toward Noble-Metal-Free Visible-Light-Driven Photocatalytic Hydrogen Evolution:Monodisperse Sub15 nm Ni2P Nanoparticles Anchored on Porous g-C₃N₄ Nanosheets to Engineer 0D-2D Heterojunction Interfaces［J］.Applied Catalysis B:Environmental,2018,221:47-55.

［7］CAO S W,YUAN Y P,FANG J,et al.In-Situ Growth of CdS Quantum Dots on g-C₃N₄ Nanosheets for Highly Efficient Photocatalytic Hydrogen Generation under Visible Light Irradiation［J］.International Journal of Hydrogen Energy,2013,38(3):1258-1266.

［8］HUANG L Y,LI Y P,XU H,et al.Synthesis and Characterization of CeO₂/g-C₃N₄ Composites with Enhanced Visible-Light Photocatatalytic Activity［J］.RSC Advances,2013,3(44):22269-22279.

［9］LUO J,ZHOU X S,MA L,et al.Enhancing Visible-Light Photocatalytic Activity of g-C₃N₄ by Doping Phosphorus and Coupling with CeO₂for the Degradation of Methyl Orange under Visible Light Irradiation［J］.RSC Advances,2015,5(84):68728-68735.

［10］WANG J L,LIU T X,WANG M J,et al.SRSF1-Dependent Alternative Splicing Attenuates BIN1 Expression in Non-Small Cell Lung Cancer［J］.Journal of Cellular Biochemisry,2020,121(2):946-953.

［11］CHEN X,LI H K,WU Y X,et al.Facile Fabrication of Novel Porous Graphitic Carbon Nitride/Copper Sulfide Nanocomposites with Enhanced Visible Light Driven Photocatalytic Performance［J］.Journal of Colloid and Interface Science,2016,476:132-143.

［12］HE B,LIU R,REN J B,et al.One-Step Solvothermal Synthesis of Petalous Carbon-Coated Cu⁺Doped CdS Nanocomposites with Enhanced Photocatalytic Hydrogen Production［J］.Langmuir,2017,33(27):6719-6726..

［13］KHATAMIAN M,SAKET OSKOUI M,HAGHIGHI M.Photocatalytic Hydrogen Generation over CdS–Metalosilicate Composites under Visible Light Irradiation［J］.New Journal of Chemistry,2014,38(4):1684-1693.

［14］ZHAO W,WEI Z B,HE H,et al.Supporting 1-D AgVO₃ Nanoribbons on Single Layer 2-D Graphitic Carbon Nitride Ultrathin Nanosheets and Their Excellent Photocatalytic Activities［J］.Applied Catalysis A:General,2015,501:74-82.

［15］HUANG L Y,LI Y P,XU H,et al.Synthesis and Characterization of CeO₂/g-C₃N₄ Composites with Enhanced Visible-Light Photocatatalytic Activity［J］.RSC Advances,2013,3(44):22269-22279.

［16］XU Z H,XU B T,QIAN K,et al.In Situ Growth of CuS Nanoparticles on g-C₃N₄ Nanosheets for H₂ Production and the Degradation of Organic Pollutant under Visible-Light Irradiation［J］.RSC Advances,2019,9(44):25638-25646.

［17］ISLAM M J,REDDY D A,CHOI J,et al.Surface Oxygen Vacancy Assisted Electron Transfer and Shuttling for Enhanced Photocatalytic Activity of A Z-scheme CeO₂–AgI Nanocomposite［J］.RSC Advances,2016,6(23):19341-19350.

[1]	郑佳欣1, 徐宝彤1, 礼峥2, 钱坤1, 徐振和1, 高雨2. g-C₃N₄/Cu₅FeS₄/Au三元光催化剂的设计、合成及催化性质的研究 [J]. 沈阳化工大学学报, 2024, 38(2): 97-102.
[2]	张跃宏, 张爽, 丁茯, 赵坤, 徐曼, 孙长亮. 镧铈稀土对Al-Si-Mg铸造铝合金性能影响研究 [J]. 沈阳化工大学学报, 2024, 38(1): 36-44.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed