四環黴素是一種被廣泛使用的抗生素，但由於人類的不當使用與棄置，因此時常可以在地表水、工業廢水以及醫院廢水中發現他們的蹤跡。鹵化物鈣鈦礦具有可以調控能隙大小的特性，若調控得宜可以顯著的提升在可見光下進行光催化反應之效率，但鹵化物鈣鈦礦穩定性較差，使其在應用時有許多限制。故本研究使用四丁基銨陽離子取代傳統1A族金屬陽離子，成功合成出有機-無機鹵化物鈣鈦礦材料(TBA3Bi2X9) 並應用於降解水溶液中之四環黴素。首先考慮各材料吸收可見光之波長範圍、能隙大小以及各材料電子電洞對之再結合效率，可以推測出當材料中之溴元素與碘元素比例為7比2的時候會有最好的降解效果，同時也由實驗結果證實此假設正確。接著經過了一系列改變系統參數之實驗，可以發現在催化劑劑量為0.2 mg/mL、四環黴素水溶液濃度為20 mg/L且pH值為10的條件下以可見光照射60分鐘可以去除88%的四環黴素，同時將此光催化劑回收並重複使用五次後尚能保有79%的去除效率。最後本研究透過計算價帶之最高能階、添加捕捉劑進行降解實驗、電子順磁共振圖譜以及質譜儀之分析結果證實了參與降解反應之活性物種主要為電洞(h+)和超氧化自由基(• O2-)，反應機制如圖所示。這些結果顯示出此鈣鈦礦材料是一個可靠的光催化劑，它具有良好去除水中抗生素及汙染物之能力，同時若將來被運用在其他可見光催化領域也是一相當具有潛力之新興材料。

Metal halide perovskites (MHPs) have recently emerged as a new promising class of cheap and easy to make photocatalytic application. In addition, (MHPs) have fascinated a great attention due to their excellent opto-electronic properties, tunable bandgap and showing a remarkably fast development in a few decades, particularly, in improved under visible light irradiation adjusting the band gap. However, halide perovskites encounter many limitations in applications because of the poor stability. In this regard, a metal halide based photocatalyst have been prepared and tested in order to examine the photocatalytic degradation removal of tetracycline from synthetic aqueous medium. Herein, we describe organic-inorganic halide perovskites (TBA3Bi2X9) was successfully synthesized through replacing the cations of 1A group with tetrabutylammonium cation then incorporate with TBA3Bi2X9 into photocatalytic application. Furthermore, we obtained that TBA3Bi2Br7I2 will be the superior catalytic material for degradation of tetracycline after considering the wavelength TBA3Bi2X9 absorbed and the band gap which influence recombination efficiency of electron hole pairs. The above investigation demonstrated that tetracycline aqueous solution (20 mg / L) was degraded 88% by adding 0.2 mg / mL of catalyst and controlling the pH value to 10 under visible light irradiation for 60 minutes. The recycle test also shown the removal efficiency could be retained 79% after using 5 times. On the other hand, the photocatalytic degradation mechanism we have been proposed by valence band maximum (VBM) and addition of scavenger of active species can be measured by electron spin resonance (EPR) and tetracycline by products studied by liquid chromatography-mass spectrometry (LC-MS) respectively. The bandgap energy diagram presented the main species which involve into the degradation reaction are electron hole (h+) and superoxide radical (• O2-). This study clearly demonstrate that perovskite is a reliable photocatalyst with good ability to remove antibiotics and pollutants in water. It also shows that perovskite will be a promising material in visible light driven photocatalytic and environmental remediation application.

1. Manuvakhova, M., K. Keeling, and D.M. Bedwell, Aminoglycoside antibiotics mediate context-dependent suppression of termination codons in a mammalian translation system. RNA, 2000. 6(7): p. 1044-55.
2. Leng, M., et al., All-Inorganic Bismuth-Based Perovskite Quantum Dots with Bright Blue Photoluminescence and Excellent Stability. Advanced Functional Materials, 2018. 28(1).
3. Yang, S., et al., Functionalization of perovskite thin films with moisture-tolerant molecules. Nature Energy, 2016. 1(2).
4. Kour, P., et al., Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation. APL Materials, 2018. 6(8).
5. Dai, Y., et al., A review on pollution situation and treatment methods of tetracycline in groundwater. Separation Science and Technology, 2019. 55(5): p. 1005-1021.
6. Anderson, C.R., H.S. Rupp, and W.H. Wu, Complexities in tetracycline analysis-chemistry, matrix extraction, cleanup, and liquid chromatography. J Chromatogr A, 2005. 1075(1-2): p. 23-32.
7. Rivera-Utrilla, J., et al., Tetracycline removal from water by adsorption/bioadsorption on activated carbons and sludge-derived adsorbents. J Environ Manage, 2013. 131: p. 16-24.
8. Wang, T., et al., Adsorptive removal of antibiotics from water using magnetic ion exchange resin. J Environ Sci (China), 2017. 52: p. 111-117.
9. Lalumera, G.M., et al., Preliminary investigation on the environmental occurrence and effects of antibiotics used in aquaculture in Italy. Chemosphere, 2004. 54(5): p. 661-8.
10. Daghrir, R. and P. Drogui, Tetracycline antibiotics in the environment: a review. Environmental Chemistry Letters, 2013. 11(3): p. 209-227.
11. Parolo, M.E., et al., Influence of Ca2+ on tetracycline adsorption on montmorillonite. J Colloid Interface Sci, 2012. 368(1): p. 420-6.
12. Parolo, M.E., et al., Tetracycline adsorption on montmorillonite: pH and ionic strength effects. Applied Clay Science, 2008. 40(1-4): p. 179-186.
13. Saadati, F., N. Keramati, and M.M. Ghazi, Influence of parameters on the photocatalytic degradation of tetracycline in wastewater: A review. Critical Reviews in Environmental Science and Technology, 2016. 46(8): p. 757-782.
14. Chopra, I. and M. Roberts, Tetracycline antibiotics: mode of action, applications, molecular biology, and epidemiology of bacterial resistance. Microbiol Mol Biol Rev, 2001. 65(2): p. 232-60 ; second page, table of contents.
15. Eliasaf, A., et al., Compliance, Persistence, and Preferences Regarding Osteoporosis Treatment During Active Therapy or Drug Holiday. J Clin Pharmacol, 2016. 56(11): p. 1416-1422.
16. Gowrisankar, G., et al., Chemical, microbial and antibiotic susceptibility analyses of groundwater after a major flood event in Chennai. Sci Data, 2017. 4: p. 170135.
17. Homem, V. and L. Santos, Degradation and removal methods of antibiotics from aqueous matrices--a review. J Environ Manage, 2011. 92(10): p. 2304-47.
18. Rodayan, A., et al., Linking drugs of abuse in wastewater to contamination of surface and drinking water. Environ Toxicol Chem, 2016. 35(4): p. 843-9.
19. Teodosiu, C., et al., Emerging pollutants removal through advanced drinking water treatment: A review on processes and environmental performances assessment. Journal of Cleaner Production, 2018. 197: p. 1210-1221.
20. Kim, S., et al., Removal of contaminants of emerging concern by membranes in water and wastewater: A review. Chemical Engineering Journal, 2018. 335: p. 896-914.
21. Fu, H., et al., Activated carbon adsorption of quinolone antibiotics in water: Performance, mechanism, and modeling. J Environ Sci (China), 2017. 56: p. 145-152.
22. Crisafully, R., et al., Removal of some polycyclic aromatic hydrocarbons from petrochemical wastewater using low-cost adsorbents of natural origin. Bioresour Technol, 2008. 99(10): p. 4515-9.
23. Pehlivan, E. and T. Altun, Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell. J Hazard Mater, 2008. 155(1-2): p. 378-84.
24. Kazemipour, M., et al., Removal of lead, cadmium, zinc, and copper from industrial wastewater by carbon developed from walnut, hazelnut, almond, pistachio shell, and apricot stone. J Hazard Mater, 2008. 150(2): p. 322-7.
25. Mendez-Diaz, J.D., et al., Kinetic study of the adsorption of nitroimidazole antibiotics on activated carbons in aqueous phase. J Colloid Interface Sci, 2010. 345(2): p. 481-90.
26. Batt, A.L., S. Kim, and D.S. Aga, Comparison of the occurrence of antibiotics in four full-scale wastewater treatment plants with varying designs and operations. Chemosphere, 2007. 68(3): p. 428-35.
27. Otker, H.M. and I. Akmehmet-Balcioglu, Adsorption and degradation of enrofloxacin, a veterinary antibiotic on natural zeolite. J Hazard Mater, 2005. 122(3): p. 251-8.
28. O'Connell, D.W., C. Birkinshaw, and T.F. O'Dwyer, Heavy metal adsorbents prepared from the modification of cellulose: a review. Bioresour Technol, 2008. 99(15): p. 6709-24.
29. Wang, S., et al., Physical and chemical regeneration of zeolitic adsorbents for dye removal in wastewater treatment. Chemosphere, 2006. 65(1): p. 82-7.
30. Zhang, X., et al., Performance evaluation of powdered activated carbon for removing 28 types of antibiotics from water. J Environ Manage, 2016. 172: p. 193-200.
31. Yao, H., et al., Adsorption of Fluoroquinolone Antibiotics by Wastewater Sludge Biochar: Role of the Sludge Source. Water, Air, & Soil Pollution, 2012. 224(1).
32. Xu, L., et al., Performance of rattle-type magnetic mesoporous silica spheres in the adsorption of single and binary antibiotics. Chemical Engineering Journal, 2011. 174(1): p. 221-230.
33. Mohsen-Nia, M., P. Montazeri, and H. Modarress, Removal of Cu2+ and Ni2+ from wastewater with a chelating agent and reverse osmosis processes. Desalination, 2007. 217(1-3): p. 276-281.
34. Zularisam, A.W., A.F. Ismail, and R. Salim, Behaviours of natural organic matter in membrane filtration for surface water treatment — a review. Desalination, 2006. 194(1-3): p. 211-231.
35. Koyuncu, I., et al., Removal of hormones and antibiotics by nanofiltration membranes. Journal of Membrane Science, 2008. 309(1-2): p. 94-101.
36. Chen, X., et al., Functional PVDF ultrafiltration membrane for Tetrabromobisphenol-A (TBBPA) removal with high water recovery. Water Res, 2020. 181: p. 115952.
37. Bautitz, I.R. and R.F.P. Nogueira, Degradation of tetracycline by photo-Fenton process—Solar irradiation and matrix effects. Journal of Photochemistry and Photobiology A: Chemistry, 2007. 187(1): p. 33-39.
38. <Fenton history.pdf>.
39. Koppenol, W.H., The Haber-Weiss cycle--70 years later. Redox Rep, 2001. 6(4): p. 229-34.
40. Elmolla, E. and M. Chaudhuri, Optimization of Fenton process for treatment of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution. J Hazard Mater, 2009. 170(2-3): p. 666-72.
41. Giri, A.S. and A.K. Golder, Fenton, Photo-Fenton, H2O2Photolysis, and TiO2Photocatalysis for Dipyrone Oxidation: Drug Removal, Mineralization, Biodegradability, and Degradation Mechanism. Industrial & Engineering Chemistry Research, 2014. 53(4): p. 1351-1358.
42. Velasquez, M., et al., Oxidative degradation of sulfathiazole by Fenton and photo-Fenton reactions. J Environ Sci Health A Tox Hazard Subst Environ Eng, 2014. 49(6): p. 661-70.
43. Guo, R., X. Xie, and J. Chen, The degradation of antibiotic amoxicillin in the Fenton-activated sludge combined system. Environ Technol, 2015. 36(5-8): p. 844-51.
44. Oturan, M.A. and J.-J. Aaron, Advanced Oxidation Processes in Water/Wastewater Treatment: Principles and Applications. A Review. Critical Reviews in Environmental Science and Technology, 2014. 44(23): p. 2577-2641.
45. <Sulfadimethoxine oxidative.pdf>.
46. <Carbamazepine oxidative.pdf>.
47. <Sulfamethoxazol oxidative.pdf>.
48. Li, K., et al., Ozonation of oxytetracycline and toxicological assessment of its oxidation by-products. Chemosphere, 2008. 72(3): p. 473-8.
49. Kim, I., N. Yamashita, and H. Tanaka, Performance of UV and UV/H2O2 processes for the removal of pharmaceuticals detected in secondary effluent of a sewage treatment plant in Japan. J Hazard Mater, 2009. 166(2-3): p. 1134-40.
50. Wols, B.A. and C.H. Hofman-Caris, Review of photochemical reaction constants of organic micropollutants required for UV advanced oxidation processes in water. Water Res, 2012. 46(9): p. 2815-27.
51. Lester, Y., D. Avisar, and H. Mamane, Photodegradation of the antibiotic sulphamethoxazole in water with UV/H2O2 advanced oxidation process. Environ Technol, 2010. 31(2): p. 175-83.
52. Guo, W., et al., Degradation of sulfadiazine in water by a UV/O3process: performance and degradation pathway. RSC Advances, 2016. 6(62): p. 57138-57143.
53. Bao, Y. and K. Chen, Novel Z-scheme BiOBr/reduced graphene oxide/protonated g-C3N4 photocatalyst: Synthesis, characterization, visible light photocatalytic activity and mechanism. Applied Surface Science, 2018. 437: p. 51-61.
54. Zhou, C., et al., Efficient visible light driven degradation of sulfamethazine and tetracycline by salicylic acid modified polymeric carbon nitride via charge transfer. Chemical Engineering Journal, 2019. 370: p. 1077-1086.
55. Kang, J., et al., Dual Z-scheme MoS2/g-C3N4/Bi24O31Cl10 ternary heterojunction photocatalysts for enhanced visible-light photodegradation of antibiotic. Journal of Alloys and Compounds, 2020. 825.
56. Liu, H.-Y., et al., Facile assembly of g-C3N4/Ag2CO3/graphene oxide with a novel dual Z-scheme system for enhanced photocatalytic pollutant degradation. Applied Surface Science, 2019. 475: p. 421-434.
57. Jiang, L., et al., In-situ synthesis of direct solid-state dual Z-scheme WO 3 /g-C 3 N 4 /Bi 2 O 3 photocatalyst for the degradation of refractory pollutant. Applied Catalysis B: Environmental, 2018. 227: p. 376-385.
58. Li, G., et al., Rational construction of a direct Z-scheme g-C3N4/CdS photocatalyst with enhanced visible light photocatalytic activity and degradation of erythromycin and tetracycline. Applied Surface Science, 2019. 478: p. 1056-1064.
59. Sudhaik, A., et al., Magnetically recoverable graphitic carbon nitride and NiFe2O4 based magnetic photocatalyst for degradation of oxytetracycline antibiotic in simulated wastewater under solar light. Journal of Environmental Chemical Engineering, 2018. 6(4): p. 3874-3883.
60. Xue, W., et al., Assembly of AgI nanoparticles and ultrathin g-C3N4 nanosheets codecorated Bi2WO6 direct dual Z-scheme photocatalyst: An efficient, sustainable and heterogeneous catalyst with enhanced photocatalytic performance. Chemical Engineering Journal, 2019. 373: p. 1144-1157.
61. Zhao, S., et al., Fabrication of sandwich-structured g-C3N4/Au/BiOCl Z-scheme photocatalyst with enhanced photocatalytic performance under visible light irradiation. Journal of Materials Science, 2018. 53(8): p. 6008-6020.
62. Jia, J., et al., Fabrication of g-C3N4/Ag3PO4-H2O2 heterojunction system with enhanced visible-light photocatalytic activity and mechanism insight. Journal of Alloys and Compounds, 2019. 790: p. 616-625.
63. Tang, H., S. He, and C. Peng, A Short Progress Report on High-Efficiency Perovskite Solar Cells. Nanoscale Res Lett, 2017. 12(1): p. 410.
64. Wang, Q., et al., Efficient sky-blue perovskite light-emitting diodes via photoluminescence enhancement. Nat Commun, 2019. 10(1): p. 5633.
65. Wang, Y.C., et al., Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection. ACS Nano, 2019. 13(5): p. 5421-5429.
66. Chin, X.Y., et al., Lead iodide perovskite light-emitting field-effect transistor. Nat Commun, 2015. 6: p. 7383.
67. Shi, E., et al., Two-dimensional halide perovskite nanomaterials and heterostructures. Chem Soc Rev, 2018. 47(16): p. 6046-6072.
68. Yuan, Z., et al., Highly luminescent nanoscale quasi-2D layered lead bromide perovskites with tunable emissions. Chem Commun (Camb), 2016. 52(20): p. 3887-90.
69. Zheng, Z.H., et al., Single Source Thermal Evaporation of Two-dimensional Perovskite Thin Films for Photovoltaic Applications. Sci Rep, 2019. 9(1): p. 17422.
70. Tavakoli, M.M., et al., Fabrication of efficient planar perovskite solar cells using a one-step chemical vapor deposition method. Sci Rep, 2015. 5: p. 14083.
71. Gao, P., M. Grätzel, and M.K. Nazeeruddin, Organohalide lead perovskites for photovoltaic applications. Energy Environ. Sci., 2014. 7(8): p. 2448-2463.
72. Ma, H., et al., Growth of Metal Halide Perovskite, from Nanocrystal to Micron-Scale Crystal: A Review. Crystals, 2018. 8(5).
73. Fu, P., et al., Perovskite nanocrystals: synthesis, properties and applications. Science Bulletin, 2017. 62(5): p. 369-380.
74. Li, Y., et al., A review on morphology engineering for highly efficient and stable hybrid perovskite solar cells. Journal of Materials Chemistry A, 2018. 6(27): p. 12842-12875.
75. Shamsi, J., et al., Metal Halide Perovskite Nanocrystals: Synthesis, Post-Synthesis Modifications, and Their Optical Properties. Chem Rev, 2019. 119(5): p. 3296-3348.
76. Protesescu, L., et al., Nanocrystals of Cesium Lead Halide Perovskites (CsPbX(3), X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut. Nano Lett, 2015. 15(6): p. 3692-6.
77. Im, J.H., et al., 6.5% efficient perovskite quantum-dot-sensitized solar cell. Nanoscale, 2011. 3(10): p. 4088-93.
78. Kim, H.S., et al., Lead iodide perovskite sensitized all-solid-state submicron thin film mesoscopic solar cell with efficiency exceeding 9%. Sci Rep, 2012. 2: p. 591.
79. Heo, J.H., et al., Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors. Nature Photonics, 2013. 7(6): p. 486-491.
80. Liu, M., M.B. Johnston, and H.J. Snaith, Efficient planar heterojunction perovskite solar cells by vapour deposition. Nature, 2013. 501(7467): p. 395-8.
81. Saliba, M., et al., Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency. Energy Environ Sci, 2016. 9(6): p. 1989-1997.
82. Sutherland, B.R. and E.H. Sargent, Perovskite photonic sources. Nature Photonics, 2016. 10(5): p. 295-302.
83. Eaton, S.W., et al., Lasing in robust cesium lead halide perovskite nanowires. Proc Natl Acad Sci U S A, 2016. 113(8): p. 1993-8.
84. Wu, Y., et al., Composite of CH3 NH3 PbI3 with Reduced Graphene Oxide as a Highly Efficient and Stable Visible-Light Photocatalyst for Hydrogen Evolution in Aqueous HI Solution. Adv Mater, 2018. 30(7).
85. Dai, Y. and H. Tuysuz, Lead-Free Cs3 Bi2 Br9 Perovskite as Photocatalyst for Ring-Opening Reactions of Epoxides. ChemSusChem, 2019. 12(12): p. 2587-2592.
86. Dai, Y. and H. Tuysuz, Lead-Free Cs3 Bi2 Br9 Perovskite as Photocatalyst for Ring-Opening Reactions of Epoxides. ChemSusChem, 2019. 12(12): p. 2587-2592.
87. Bhosale, S.S., et al., Mechanism of Photocatalytic CO2 Reduction by Bismuth-Based Perovskite Nanocrystals at the Gas-Solid Interface. J Am Chem Soc, 2019. 141(51): p. 20434-20442.
88. Kour, P., et al., Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation. APL Materials, 2018. 6(8).
89. Yang, C.-K., et al., Microwave-Assisted Synthesis of BiOBr Microspheres for Photocatalytic Degradation of Tartaric Acids in Aqueous Solution. Topics in Catalysis, 2015. 58(14-17): p. 1100-1111.
90. Cao, F., et al., An in situ Bi-decorated BiOBr photocatalyst for synchronously treating multiple antibiotics in water. Nanoscale Advances, 2019. 1(3): p. 1124-1129.
91. Xu, R., et al., Nitrogen, Sulfur Dual-Doped Mesoporous Carbon Modified Glassy Carbon Electrode for Simultaneous Determination of Hydroquinone and Catechol. Journal of The Electrochemical Society, 2016. 163(13): p. B617-B623.
92. Shi, Q., et al., Highly uniform distribution of Pt nanoparticles on N-doped hollow carbon spheres with enhanced durability for oxygen reduction reaction. RSC Advances, 2017. 7(11): p. 6303-6308.
93. Ning, S., et al., Dual couples Bi metal depositing and Ag@AgI islanding on BiOI 3D architectures for synergistic bactericidal mechanism of E. coli under visible light. Applied Catalysis B: Environmental, 2017. 204: p. 1-10.
94. Lu, C., et al., Hydrothermal synthesis of type II ZnIn2S4/BiPO4 heterojunction photocatalyst with dandelion-like microflower structure for enhanced photocatalytic degradation of tetracycline under simulated solar light. Journal of Alloys and Compounds, 2019. 811.
95. Li, P., et al., Controllable synthesis of cerium zirconium oxide nanocomposites and their application for photocatalytic degradation of sulfonamides. Applied Catalysis B: Environmental, 2019. 259.
96. Kershis, M.D. and M.G. White, Photooxidation of ethanol and 2-propanol on TiO2(110): evidence for methyl radical ejection. Phys Chem Chem Phys, 2013. 15(41): p. 17976-82.
97. Zhang, Q., et al., Porous Z-scheme MnO2/Mn-modified alkalinized g-C3N4 heterojunction with excellent Fenton-like photocatalytic activity for efficient degradation of pharmaceutical pollutants. Separation and Purification Technology, 2020. 246.
98. Kong, W., et al., Performance optimization of CdS precipitated graphene oxide/polyacrylic acid composite for efficient photodegradation of chlortetracycline. J Hazard Mater, 2020. 388: p. 121780.
99. Wu, Y., et al., Mxene-modulated dual-heterojunction generation on a metal-organic framework (MOF) via surface constitution reconstruction for enhanced photocatalytic activity. Chemical Engineering Journal, 2020. 390.
100. Bai, X., et al., Adsorption–photocatalytical remediation for series of tetracycline contaminants with BiOCl–CdS composite under simulated sunlight. Journal of the Taiwan Institute of Chemical Engineers, 2019. 104: p. 94-105.
101. Nie, M., et al., Degradation of tetracycline in water using Fe3O4 nanospheres as Fenton-like catalysts: kinetics, mechanisms and pathways. New Journal of Chemistry, 2020. 44(7): p. 2847-2857.
102. Zhang, S., et al., MOF-derived CoN/N-C@SiO2 yolk-shell nanoreactor with dual active sites for highly efficient catalytic advanced oxidation processes. Chemical Engineering Journal, 2020. 381.
103. Diao, Y., et al., In-situ grown of g-C3N4/Ti3C2/TiO2 nanotube arrays on Ti meshes for efficient degradation of organic pollutants under visible light irradiation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020. 594.
104. Mohan, H., et al., V2O5 /RGO/Pt nanocomposite on oxytetracycline degradation and pharmaceutical effluent detoxification. Journal of Chemical Technology & Biotechnology, 2019. 95(1): p. 297-307.
105. Xiang, Y., et al., Magnetic yolk-shell structure of ZnFe2O4 nanoparticles for enhanced visible light photo-Fenton degradation towards antibiotics and mechanism study. Applied Surface Science, 2020. 513.
106. Wang, D., et al., Synthesis of g-C3N4/NiO p–n heterojunction materials with ball-flower morphology and enhanced photocatalytic performance for the removal of tetracycline and Cr6+. Journal of Materials Science, 2019. 54(17): p. 11417-11434.
107. Wei, J., et al., Enhanced catalytic degradation of tetracycline antibiotic by persulfate activated with modified sludge bio-hydrochar. Chemosphere, 2020. 247: p. 125854.
108. Wu, K., et al., Supramolecular self-assembly synthesis of noble-metal-free (C, Ce) co-doped g-C3N4 with porous structure for highly efficient photocatalytic degradation of organic pollutants. J Hazard Mater, 2020. 382: p. 121027.