On the Degradation of Glyphosate by Photocatalysis Using TiO2/Biochar Composite Obtained from the Pyrolysis of Rice Husk
Abstract
:1. Introduction
2. Materials and Methods
2.1. Chemical Reagents
2.2. TiO2 Coated Biochar Preparation
2.3. Research Methods
2.3.1. Characterization Methods
2.3.2. Experimental Setup
2.3.3. Evaluation of Photocatalysis Activity
3. Results
3.1. Characterization of TiO2/RHB Composites
3.1.1. Surface Morphology and Porous Structure of the Composite Catalysts
3.1.2. Elemental Compositions of TiO2/RHB Composites
3.1.3. The Crystalline Structure of TiO2/RHB
3.1.4. Functional Groups of TiO2/RHB Composites
3.2. Photodegradation of Glyphosate in the Presence of TiO2/RHB Catalysts
3.2.1. Effects of TiO2/RHB Catalyst Dosage
3.2.2. Effects of Irradiation Intensity
3.2.3. Mineralization Ability of Glyphosate
4. Discussion and Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Appendix A
Appendix B
Appendix C
Appendix D. Calibration Curve of Orthophosphate
Appendix E. The Gradient Elution Profile and the Compounds Information
Time (mn) | % A | % B |
---|---|---|
0.01 2.00 3.00 7.00 7.01 | 100 100 50 50 100 | 0 0 50 50 0 |
10.00 | 100 | 0 |
Compound | m/z | E (V) | RT (mn) |
---|---|---|---|
Glyphosate | 168 > 63 | −30 | 4.07 |
AMPA | 110 > 60 | −26 | 2.87 |
Appendix F. SEM Images of Raw RHB
Appendix G. EDX Analyzed Position
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% Weight | RHB | TiO2/RHB |
---|---|---|
C O Si Ti Others | 40.25 44.92 14.83 0 0 | 40.19 31.98 11.14 14.09 2.60 |
Total | 100 | 100 |
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Le, P.T.; Le, D.N.; Nguyen, T.H.; Bui, H.T.; Pham, L.A.; Nguyen, L.L.; Nguyen, Q.S.; Nguyen, T.P.; Dang, T.H.; Duong, T.T.; et al. On the Degradation of Glyphosate by Photocatalysis Using TiO2/Biochar Composite Obtained from the Pyrolysis of Rice Husk. Water 2021, 13, 3326. https://doi.org/10.3390/w13233326
Le PT, Le DN, Nguyen TH, Bui HT, Pham LA, Nguyen LL, Nguyen QS, Nguyen TP, Dang TH, Duong TT, et al. On the Degradation of Glyphosate by Photocatalysis Using TiO2/Biochar Composite Obtained from the Pyrolysis of Rice Husk. Water. 2021; 13(23):3326. https://doi.org/10.3390/w13233326
Chicago/Turabian StyleLe, Phuong Thu, Duy Ngoc Le, Thi Hue Nguyen, Huyen Thuong Bui, Le Anh Pham, Luong Lam Nguyen, Quoc Son Nguyen, Thu Phuong Nguyen, Thu Hien Dang, Thi Thuy Duong, and et al. 2021. "On the Degradation of Glyphosate by Photocatalysis Using TiO2/Biochar Composite Obtained from the Pyrolysis of Rice Husk" Water 13, no. 23: 3326. https://doi.org/10.3390/w13233326