陆昆,江耀红,赵立军,许俊华

• 1:滁州城市职业学院医学院
• 2:江苏科技大学材料科学与工程学院

摘要(Abstract)：

光催化技术作为一种高效、安全的环境友好型净化技术，深受人们的重视和关注。传统的TiO_2光催化材料在应用过程中仍存在着局限性，难以广泛应用。本研究通过磁控溅射多靶共沉积技术制备了不同Ag含量的TiO_2/Ag薄膜，Ag的引入能够极大地提升薄膜的抗菌性能和可见光响应性能。利用X射线衍射仪(X-ray diffractometer, XRD)、X射线光电子能谱仪(X-ray photoelectron spectrometer, XPS)、高分辨透射电镜(Transmission electron microscopy, TEM)、场发射扫描电镜(Scanning electron microscopy, SEM)、紫外-可见分光光度计(Ultraviolet-visible, UV-Vis)和接触角测量仪等研究了不同Ag含量对薄膜微观结构、润湿性能、抗菌性能和可见光响应性能的影响。结果表明：制备的TiO_2/Ag薄膜主要由金红石型TiO_2相和Ag相组成；随着Ag含量的增加，薄膜的水滴接触角逐渐增大，在Ag靶功率为45 W时，薄膜具有最佳的疏水性能，接触角为142.27°;Ag元素的掺杂对薄膜的抗菌性能的提升有着显著作用，在Ag靶溅射功率为25 W时，薄膜对大肠杆菌的抑制作用最好，0.25麦氏标准大肠杆菌的抑菌圈直径最大，达到了4.5 mm; TiO_2/Ag薄膜吸收带边红移，禁带宽度显著变窄，达到了2.79 eV,薄膜的光响应范围拓宽至可见光区。

关键词(KeyWords)： 磁控溅射;TiO_2/Ag薄膜;微观结构;光催化;抗菌性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52172090);; 安徽省自然科学重点项目(2024AH051391);; 安徽省2022年高校优秀青年骨干教师国内访学研修项目(gxgnfx2022159)

作者(Author): 陆昆,江耀红,赵立军,许俊华

DOI: 10.13289/j.issn.1009-6264.2024-0437

参考文献(References)：

• [1] Shruti S,Shobha M,Veeriah J.Tailoring the effects of titanium dioxide (TiO2) and polyvinyl alcohol (PVA) in the separation and antifouling performance of thin-film composite polyvinylidene fluoride (PVDF) membrane[J].Membranes,2021,11(4),241:1-26.
• [2] Wang B,Chen C,Liu H,et al.WO3/TiO2 superhydrophilic and underwater superoleophobic membrane for effective separation of oil-in-water emulsions[J].Thin Solid Films,2018,665:9-16.
• [3] Shah L A,Malik T,Siddiq M,et al.TiO2 nanotubes doped poly (vinylidene fluoride) polymer membranes (PVDF/TNT) for efficient photocatalytic degradation of brilliant green dye[J].Journal of Environmental Chemical Engineering,2019,7(5):103291.
• [4] Nguyen T P,Tran Q B,Ly Q V,et al.Enhanced visible photocatalytic degradation of diclofen over n-doped TiO2 assisted with H2O2:a kinetic and pathway study[J].Arabian Journal of Chemistry,2020,13(11):8361-8371.
• [5] Nawaz H,Umar M,Nawaz I,et al.Photodegradation of textile pollutants by nanocomposite membranes of polyvinylidene fluoride integrated with polyaniline-titanium dioxide nanotubes[J].Chemical Engineering Journal,2021,419:129542.
• [6] Peiris S,Silva H,Ranasinghe K N,et al.Recent development and future prospects of TiO2 photocatalysis[J].Journal of the Chinese Chemical Society,2021,68(5):738-769.
• [7] Qiang Z W,Qing Q H,Chun X M,et al.Characterization of the excited state on methanol/TiO2(110) interface[J].Chinese Journal of Chemical Physics,2015,28(2):123-127.
• [8] Komaraiah D,Radha E,Sivakumar J,et al.Photoluminescence and photocatalytic activity of spin coated Ag+doped anatase TiO2 thin films[J].Optical Materials,2020,108:110401.
• [9] Pérez-González M,Tomás S,Santoyo-Salazar J,et al.Sol-gel synthesis of Ag-loaded TiO2-ZnO thin films with enhanced photocatalytic activity[J].Journal of Alloys and Compounds,2019,779:908-917.
• [10] 张兰，谭皓蕾，马会中，等.镍、碳共掺杂纳米二氧化钛薄膜的制备与光催化性能研究[J].无机盐工业，2021,53(4):107-111.ZHANG Lan,TAN Hao-lei,MA Hui-zhong,et al.Preparation and photocatalytic properties of nickel and carbon co-doped nano-titanium dioxide thin films[J].Inorganic Salt Industry,2021,53(4):107-111.
• [11] 王玉新，蔺冬雪，赵帅，等.Cu掺杂量对Zn-Cu共掺TiO2薄膜光学带隙的影响[J].光电子激光，2020,31(10):1001-1006.WANG Yu-xin,LIAN Dong-xue,ZHAO Shuai,et al.Effect of Cu doping amount on optical band gap of Zn-Cu co-doped TiO2 films[J].Photoelectronics Laser,2020,31(10):1001-1006.
• [12] 史弘宇，李建敏，张仕丽，等.银掺杂TiO2可见光催化剂的制备与表征[J].化工新型材料，2023,51(1):209-214.SHI Hong-yu,LI Jian-min,ZHANG Shi-li,et al.Preparation and characterization of silver doped TiO2 visible light catalyst[J].New Chemical Materials,2023,51(1):209-214.
• [13] 陈品鸿，许良记，李定帆，等.溶胶-凝胶法制备Ag/TiO2纳米薄膜及其陶瓷表面抗菌性能研究[J].材料研究与应用，2023,17(1):142-148.CHEN Pin-hong,XU Liang-ji,LI Ding-fan,et al.Study on antibacterial properties of Ag/TiO2 nano-films prepared by sol-gel method[J].Materials Research and Application,2023,17(1):142-148.
• [14] Chan S C,Barteau M A.Preparation of highly uniform Ag/TiO2 and Au/TiO2 supported nanoparticle catalysts by photodeposition[J].Langmuir,2005,21(12):5588-5595.
• [15] 吴方棣，杨自涛，胡家朋，等.贵金属掺杂锐钛矿TiO2光催化性能的第一性原理研究[J].原子与分子物理学报，2021,38(3):171-178.WU Fang-di YANG Zi-tao,HU Jia-peng,et al.First-principles study on photocatalytic performance of noble metal doped anatase TiO2[J].Chinese Journal of Atomic and Molecular Physics,2021,38(3):171-178.
• [16] Zhang F,Wang X,Liu H,et al.Recent advances and applications of semiconductor photocatalytic technology[J].Applied Sciences,2019,9(12):2489.
• [17] Wang Y H,Rahman K H,Wu C C,et al.A review on the pathways of the improved structural characteristics and photocatalytic performance of titanium dioxide (TiO2) thin films fabricated by the magnetron-sputtering technique[J].Catalysts,2020,10(6):598.
• [18] Meng F,Lu F,Sun Z,et al.A mechanism for enhanced photocatalytic activity of nano-size silver particle modified titanium dioxide thin films[J].Science China Technological Sciences,2010,53(11):3027-3032.
• [19] 谢娟.金红石TiO2纳米阵列光电催化降解苯酚[D].杭州：浙江大学，2020.XIE Juan.Photocatalytic degradation of phenol by rutile TiO2 nanoarray[D].Hangzhou:Zhejiang University,2020.
• [20] 范顶，王黎明，刘峰强，等.Ag/TiO2复合物的低温合成及其光催化性能研究[J].功能材料，2023,54(4):4104-4109.FAN Ding,WANG Li-ming,LIU Feng-qiang,et al.Synthesis and photocatalytic properties of Ag/TiO2 composites at low temperature[J].Journal of Functional Materials,2023,54(4):4104-4109.
• [21] Fu T,Liu B G,Dong B H,et al.Hydrothermal surface modi-fication of a low modulus Ti-Nb based alloy[J].Rare Metal Materials and Engineering,2014,43(2):291-295.
• [22] Prasad S M,Dutt V V,Kumar P K,et al.A functional Ag-TiO2 nanocomposite solar selective absorber with antimicrobial activity by photochemical reduction process[J].Journal of Photochemistry and Photobiology B:Biology,2019,199:111626.
• [23] Li G,Liu Z Q,Lu J,et al.Effect of calcination temperature on the morphology and surface properties of TiO2 nanotube arrays[J].Applied Surface Science,2009,255:7323-7328.
• [24] Zhang X Y,Li M,He X J,et al.Antibacterial activity of single crystalline silver-doped anatase TiO2 nanowire arrays[J].Applied Surface Science,2016,372:139-144.
• [25] Septiningrum F,Yuwono H A,Maulana A F,et al.Mangosteen pericarp extract mediated synthesis of Ag/TiO2 nanocomposite and its application on organic pollutant degradation by adsorption-photocatalytic activity[J].Current Research in Green and Sustainable Chemistry,2024,8:100394.
• [26] Xu X,Su F,Li Z.Microstructure and tribological behaviors of MoN-Cu nanocomposite coatings sliding against Si3N4 ball under dry and oil-lubricated conditions[J].Wear,2019,434-435:202994.
• [27] Jiang Y,Wu X,Bian S,et al.Insight into the tribological performance and mechanisms of MoN-Ag/oil solid-liquid lubrication system based on catalytic effect[J].Surface and Coatings Technology,2024,480:130612.
• [28] Ren Y,Jia J H,Cao X Q,et al.Effect of Ag contents on the microstructure and tribological behaviors of NbN-Ag coatings at elevated temperatures[J].Vacuum,2022,204:111330.
• [29] Ma J,Low J X,Wu D,et al.Cu and Si co-doping on TiO2/nanosheets to modulate reactive oxygen species for efficient photocatalytic methane conversion[J].Nanoscale Horizons,2022,8(1):63-68.
• [30] Wang C C,Feng X H,Dan Y X,et al.Enhancing antibacterial properties and biosafety evaluation of TiO2/Cu photocatalytic coatings through suspension flame spraying[J].Journal of Thermal Spray Technology,2023,33(1):101-112.
• [31] Fnu A,Faiza K A,Abdul M G,et al.Mangifera indica mediated biogenic synthesis of undoped and doped TiO2 nanoparticles and evaluation of their structural,morphological,and photocatalytic properties[J].Results in Materials,2023,17:100384.
• [32] Liza Z T,Tusher H M M,Anwar F,et al.Effect of Ag-doping on morphology,structure,band gap and photocatalytic activity of bio-mediated TiO2 nanoparticles[J].Results in Materials,2024,22:100559.
• [33] Hariharan D,Thangamuniyandi P,Christy J A,et al.Enhanced photocatalysis and anticancer activity of green hydrothermal synthesized Ag@TiO2 nanoparticles[J].Journal of Photochemistry and Photobiology B:Biology,2020,202:111636.
• [34] Vijayalakshmi K,Sivaraj D.Synergistic antibacterial activity of barium doped TiO2 nanoclusters synthesized by microwave processing[J].RSC Advances,2016,6(12):9663-9671.

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