基于钯修饰的介孔TiO2纳米棒高效光降解四环素的研究
收稿日期: 2024-05-06
网络出版日期: 2024-09-26
基金资助
国家自然科学基金青年项目(21876143)
Study on palladium modified mesoporous TiO2 nanorods for efficient photodegradation of tetracycline
Received date: 2024-05-06
Online published: 2024-09-26
致力于开发一种高性能光催化剂，专门用于环境净化中四环素（TC）的有效降解。通过静电纺丝技术和硼氢化钠还原法，成功制备了金属钯颗粒均匀负载的介孔二氧化钛（Pd/mTiO2 NRs）纳米棒复合光催化剂。随后，对这些复合材料进行了光催化降解TC的活性评估实验。实验结果显示，具有3%最佳Pd负载量的Pd/mTiO2 NRs纳米复合物在光降解TC方面展现出了卓越的催化性能。在短短1 h的光反应后，TC的去除率高达96.4%，这一效率比单独的mTiO2 NRs（去除率约为67.1%）提高了约1.45倍。进一步利用准一级动力学模型分析，研究发现Pd/mTiO2 NRs具有非常高的降解速率常数，达到0.053 58 min-1，这一数值是单独mTiO2 NRs（0.010 68 min-1）的5倍之多。更重要的是，经过5次循环使用后，该复合光催化剂的光催化效率几乎保持不变，证明了其良好的结构稳定性和可循环使用性。该研究不仅为开发高效光催化剂提供了新的研究思路，而且为环境净化领域提供了有力的技术支持，为解决实际环境问题提供了有效的解决方案。
孙延龙 , 袁广胜 , 王红军 . 基于钯修饰的介孔TiO2纳米棒高效光降解四环素的研究[J]. 无机盐工业, 2024 , 56(9) : 147 -153 . DOI: 10.19964/j.issn.1006-4990.2024-0244
This study aims to develop a high-performance photocatalyst specifically designed for the effective degradation of tetracycline（TC） in environmental purification.The composite of mesoporous titanium dioxide nanorods uniformly loaded with palladium metal particles（Pd/mTiO2 NRs） was successfully prepared using electrospinning technology and sodium borohydride reduction method.Subsequently，the photocatalytic activity for TC degradation on these catalysts was evaluated.The experimental results showed that the Pd/mTiO2 NRs nanocomposites with an optimal Pd loading capacity of 3% demonstrated an excellent catalytic performance in photodegradation of TC.After 1 h of photoreaction，the removal rate of TC over the Pd/mTiO2 NRs catalyst was as high as 96.4%，which was about 1.45 times higher than that of the single mTiO2 NRs（removal rate 67.1%）.Further analysis using a pseudo-first-order kinetic model revealed that the Pd/mTiO2 NRs sample possessed a very high degradation rate constant，reaching k=0.053 58 min-1，which was more than 5 times that of mTiO2 NRs（0.010 68 min-1）.More importantly，after 5 cycles of use，the photocatalytic efficiency of the the Pd/mTiO2 NRs composite remained almost unchanged，demonstrating its good structural stability and recyclable.The present study not only provided new research ideas for the development of efficient photocatalysts，but also offered strong technical support for the field of environmental purification and effective approaches for solving practical environmental problems.
| 1 | 史苏琦，张守臣，张迪嘉，等.钒酸铋晶面调控制备及其降解四环素类抗生素性能研究［J］.无机盐工业，2021，53（11）：114-121. |
| SHI Suqi， ZHANG Shouchen， ZHANG Dijia，et al.Study on crystal facet regulation of bismuth vanadate and its degradation properties of tetracycline antibiotics［J］.Inorganic Chemicals Industry，2021，53（11）：114-121. | |
| 2 | TAN Qingmei， ZHANG Wensheng， LIU Tianren，et al.Magnetically induced construction of core-shell architecture Fe3O4@TiO2-Co nanocomposites for effective photocatalytic degradation of tetracycline［J］.New Journal of Chemistry，2023，47（34）：15951-15962. |
| 3 | ZHANG Wensheng， TAN Qingmei， LIU Tianren，et al.Fabrication of water-floating litchi-like polystyrene-sphere-supported TiO2/Bi2O3 S-scheme heterojunction for efficient photocatalytic degradation of tetracycline［J］.Materials Horizons，2023，10（12）：5869-5880. |
| 4 | LIAO Quan， RONG Hongwei， ZHAO Meihua，et al.Interaction between tetracycline and microorganisms during wastewater treatment：A review［J］.The Science of the Total Environment，2021，757：143981. |
| 5 | ZHAO Xia， LI Yabin， YANG Liu，et al.Screen and study of tetracycline-degrading bacteria from activated sludge and granular sludge［J］.CLEAN-Soil，Air，Water，2018，46（7）：1700411. |
| 6 | LI Xiang， WANG Yujue， WANG Bin，et al.Combination of ozonation and electrolysis process to enhance elimination of thirty structurally diverse pharmaceuticals in aqueous solution［J］.Journal of Hazardous Materials，2019，368：281-291. |
| 7 | Luna TIE， ZHANG Weixian， DENG Zilong.Ferrous ion-induced cellulose nanocrystals/alginate bio-based hydrogel for high efficiency tetracycline removal［J］.Separation and Purification Technology，2024，328：125024. |
| 8 | CAI Teng， HUANG Manhong， XU Qi，et al.Removal of tetracycline resistance and bacteria diversity changes by advanced membrane process［J］.Journal of Environmental Engineering，2019，145（1）：04018132. |
| 9 | LI Shijie， CHEN Jialin， HU Shiwei，et al.Facile construction of novel Bi2WO6/Ta3N5 Z-scheme heterojunction nanofibers for efficient degradation of harmful pharmaceutical pollutants［J］.Chemical Engineering Journal，2020，402：126165. |
| 10 | SUN Mingyue， XU Jinshui， MA Jinyuan，et al.Facile sol-gel preparation of amorphous TiO2 nanoparticles under pH of 8 for synergistic adsorption-photocatalytic degradation of tetracycli-ne［J］.Journal of Alloys and Compounds，2023，937：168254. |
| 11 | YANG Xiuru， CHEN Zhi， ZHAO Wan，et al.Recent advances in photodegradation of antibiotic residues in water［J］.Chemical Engineering Journal，2021，405：126806. |
| 12 | LUO Tao， SUN Xudong， MA Duomou，et al.Fabrication of TiO2/CdS heterostructure by soluble solid-state titanium-oxo-clusters for fast photocatalytic degradation of tetracycline［J］.The Journal of Physical Chemistry C，2023，127（3）：1372-1380. |
| 13 | CHOI N， TANG Cheng， PARK Y，et al.Visible-light-driven photocatalytic degradation of tetracycline using citric acid and lemon juice-derived carbon quantum dots incorporated TiO2 nanocomposites［J］.Separation and Purification Technology，2024，350：127836. |
| 14 | WEI Yu， CHEN Meng， GUO Sheng，et al.Hierarchically porous TiO2 photocatalyst prepared by additive manufacturing and dealloying for highly efficient photocatalytic degradation of tetracycline［J］.ACS ES&T Water，2024，4（4）：1590-1600. |
| 15 | MANOJ D， RAJENDRAN S， QIN Jiaqian，et al.Heterostructures of mesoporous TiO2 and SnO2 nanocatalyst for improved electrochemical oxidation ability of vitamin B6 in pharmaceutical table-ts［J］.Journal of Colloid and Interface Science，2019，542：45-53. |
| 16 | ONG W J， TAN L L， CHAI S P，et al.Highly reactive｛001｝facets of TiO2-based composites：Synthesis，formation mechanism and characterization［J］.Nanoscale，2014，6（4）：1946-2008. |
| 17 | DO T C M V， NGUYEN D Q， NGUYEN K T，et al.TiO2 and Au-TiO2 nanomaterials for rapid photocatalytic degradation of antibiotic residues in aquaculture wastewater［J］.Materials，2019，12（15）：2434. |
| 18 | LI Jiwen， DUAN Yaqian， WANG Linlin，et al.Preparation of core-shell structure Ag@TiO2 plasma photocatalysts and reduction of Cr（Ⅵ）：Size dependent and LSPR effect［J］.Environmental Research，2024，248：118265. |
| 19 | LI Naixu， LIU Ming， YANG Bin，et al.Enhanced photocatalytic performance toward CO2 hydrogenation over nanosized TiO2-loaded Pd under UV irradiation［J］.The Journal of Physical Che-mistry C，2017，121（5）：2923-2932. |
| 20 | DUAN Xueyi， WANG Tinglan， SUN Kaiyi，et al.Efficient photocatalytic selective oxidation of benzyl alcohol by nano-Pd/TiO2– x with synergistic effect of oxygen vacancy and shell structure［J］.Journal of Alloys and Compounds，2024，979：173555. |
| 21 | PRIMO A， CORMA A， GARCíA H.Titania supported gold nano-particles as photocatalyst［J］.Phys Chem Chem Phys，2011，13（3）：886-910. |
| 22 | ZHANG W， PAN G， HAN D，et al.Regulating bimetallic active centers for exploring the structure-activity relationship toward high-performance photocatalytic nitrogen reduction［J］.Materials Today Nano，2023，22：100323. |
| 23 | LI Jing， ZHOU Hu， ZHUO Han，et al.Oxygen vacancies on TiO2 promoted the activity and stability of supported Pd nanoparticles for the oxygen reduction reaction［J］.Journal of Materials Chemistry A，2018，6（5）：2264-2272. |
| 24 | ZHANG Wensheng， HAN Dongfang， DAI Mengjiao，et al.Stable Ti3+ sites derived from the Ti x O y -P z layer boost cubic Fe2O3 for enhanced photocatalytic N2 reduction［J］.ACS Sustainable Chemistry & Engineering，2021，9（45）：15331-15343. |
| 25 | ZHANG Ronghao， WANG Hong， TANG Siyang，et al.Photocatalytic oxidative dehydrogenation of ethane using CO2 as a soft oxidant over Pd/TiO2 catalysts to C2H4 and syngas［J］.ACS Catalysis，2018，8（10）：9280-9286. |
| 26 | TANG Min， LI Songda， CHEN Shiyuan，et al.Facet-dependent oxidative strong metal-support interactions of palladium-TiO2 determined by in situ transmission electron microscopy［J］.Angewandte Chemie（International Ed.in English），2021，60（41）：22339-22344. |
| 27 | GUO Wei， ZOU Junhua， GUO Binbin，et al.Pd nanoclusters/TiO2（B） nanosheets with surface defects toward rapid photocatalytic dehalogenation of polyhalogenated biphenyls under visible light［J］.Applied Catalysis B：Environmental，2020，277：119255. |
| 28 | CHEN Yu， WANG Yannan， LI Weizun，et al.Enhancement of photocatalytic performance with the use of noble-metal-decorated TiO2 nanocrystals as highly active catalysts for aerobic oxidation under visible-light irradiation［J］.Applied Catalysis B：Environmental，2017，210：352-367. |
| 29 | ZHANG Nan， LIU Siqi， FU Xianzhi，et al.Synthesis of M@TiO2 （M=Au，Pd，Pt） core-shell nanocomposites with tunable photoreactivity［J］.The Journal of Physical Chemistry C，2011，115（18）：9136-9145. |
| 30 | LIU Xueqin， IOCOZZIA J， WANG Yang，et al.Noble metal-metal oxide nanohybrids with tailored nanostructures for efficient solar energy conversion，photocatalysis and environmental remediati-on［J］.Energy & Environmental Science，2017，10（2）：402-434. |
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