Effectiveness Of Nanocomposite ZnO/N-Doped Carbon Nanodots As Photodegradation Of Rhodamin B Under UV Radiation

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Introduction

The textile industry in Indonesia has experienced rapid growth, but this has also led to environmental pollution problems due to the production of liquid waste, including Rhodamin B (RHB). To address this issue, an effective method is needed to degrade RHB, and one such method is photodegradation. Photodegradation can be achieved by utilizing ZnO nanoparticles, N-CNDS (N-Doped Carbon Nanodots), and Nanocomposite ZnO/N-CNDS. The combination of ZnO with N-CNDS to form nanocomposites has been proven to increase charge transfer in the photocatalysis process.

Background and Literature Review

Rhodamin B (RHB) is a synthetic dye commonly used in the textile industry. However, its production and use have led to environmental pollution problems due to the release of liquid waste containing RHB. The degradation of RHB is essential to prevent its harmful effects on the environment. Photodegradation is a promising method for degrading RHB, and it can be achieved by utilizing ZnO nanoparticles, N-CNDS, and Nanocomposite ZnO/N-CNDS.

ZnO nanoparticles have been widely used as photocatalysts due to their high surface area and reactivity. However, their use has some limitations, including low charge transfer efficiency and stability. N-CNDS, on the other hand, have been shown to have high charge transfer efficiency and stability, making them a promising material for photocatalysis. The combination of ZnO with N-CNDS to form nanocomposites has been proven to increase charge transfer in the photocatalysis process.

Methodology

In this study, the synthesis of photocatalyst materials was carried out consisting of N-CNDS, ZnO, and Nanocomposite ZnO/N-CNDS. The research process was carried out in several stages. In the first stage, N-CNDS was synthesized using molasses as precursors and urea as doping nitrogen through microwave methods. Furthermore, the second stage involved the synthesis of ZnO nanoparticles and Nanocomposite ZnO/N-CNDS using the sonochemical method.

After synthesis, RHB photodegradation was carried out using Nanocomposite ZnO/N-CNDS with a variety of irradiation times of 30, 60, 90, 120, and 150 minutes. The test was carried out to compare the effectiveness of RHB photodegradation using ZnO, N-CNDS, and ZnO/N-CNDS during the irradiation that produced the highest percentage of degradation.

Results and Discussion

The results of the characterization of the photocatalyst and RHB material after the degradation process show that N-CNDS was successfully synthesized with a confirmation of the collection that shows a round shape with a particle size of 3.5 nm, shining blue under the UV 395 Nm lamp, and has an absorbent spectrum at 246 nm. The ZnO nanoparticles produced have a particle size of 64.2 nm and the absorption spectrum at 380 nm, while Nanocomposite ZnO/N-CNDS has a particle diameter of 5.7 Nm and the absorbent spectrum at 281 nm.

From the biodegradation analysis, the results obtained that the highest percentage of RHB degradation in Nanocomposite ZnO/N-CNDS for 150 minutes irradiation reached 73.6%. In comparison, RHB photodegradation uses N-CNDS and ZnO nanoparticles for 150 minutes shows the percentage of degradation of 11% and 43% respectively. The conclusion of this study shows that the highest effectiveness of photodegradation is found in Nanocomposite ZnO/N-CNDS for 150 minutes under UV rays.

Additional Analysis and Explanation

Rhodamin B photodegradation using Nanocomposite ZnO/N-CNDS shows a significant potential in overcoming the problem of liquid waste pollution in the textile industry. Nanocomposite not only combines the advantages of both materials, but also improves the efficiency of the photocatalysis process through increasing better charge transfer. With supporting physical characteristics, such as small particle size and optimal absorption spectrum, this nanocomposite has the potential to be widely used in environmental applications.

The success of this research opens opportunities for the development of green technology in managing industrial waste, especially in the textile sector. The use of environmentally friendly and effective methods like this will not only help reduce pollution, but can also increase the reputation of the Indonesian textile industry in the eyes of international. With the promising results from this study, it is important for researchers and practitioners to continue to develop and optimize the use of nanocomposite in other applications in the field of waste management and environmental restoration.

Conclusion

In conclusion, this study has demonstrated the effectiveness of Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst for the degradation of Rhodamin B under UV radiation. The results show that the combination of ZnO with N-CNDS to form nanocomposites has increased charge transfer in the photocatalysis process, leading to a higher percentage of RHB degradation. The success of this research opens opportunities for the development of green technology in managing industrial waste, especially in the textile sector.

Recommendations

Based on the results of this study, the following recommendations are made:

  1. Further research is needed to optimize the synthesis of Nanocomposite ZnO/N-CNDS and to improve its stability and reactivity.
  2. The use of Nanocomposite ZnO/N-CNDS should be explored in other applications in the field of waste management and environmental restoration.
  3. The development of green technology in managing industrial waste, especially in the textile sector, should be continued and supported.

Limitations

This study has some limitations, including:

  1. The synthesis of Nanocomposite ZnO/N-CNDS was carried out using a limited number of precursors and doping agents.
  2. The characterization of the photocatalyst and RHB material after the degradation process was limited to a few physical and chemical properties.
  3. The study was limited to the degradation of Rhodamin B under UV radiation, and further research is needed to explore the degradation of other pollutants.

Future Directions

The results of this study have opened up new avenues for research in the field of photocatalysis and waste management. Some potential future directions include:

  1. The development of new photocatalysts with improved stability and reactivity.
  2. The exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration.
  3. The development of green technology in managing industrial waste, especially in the textile sector.

Conclusion

In conclusion, this study has demonstrated the effectiveness of Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst for the degradation of Rhodamin B under UV radiation. The results show that the combination of ZnO with N-CNDS to form nanocomposites has increased charge transfer in the photocatalysis process, leading to a higher percentage of RHB degradation. The success of this research opens opportunities for the development of green technology in managing industrial waste, especially in the textile sector.

Q: What is the purpose of this study?

A: The purpose of this study is to investigate the effectiveness of Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst for the degradation of Rhodamin B under UV radiation.

Q: What is Rhodamin B (RHB)?

A: Rhodamin B (RHB) is a synthetic dye commonly used in the textile industry. However, its production and use have led to environmental pollution problems due to the release of liquid waste containing RHB.

Q: What is the significance of this study?

A: This study is significant because it demonstrates the effectiveness of Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst for the degradation of RHB under UV radiation. This has potential applications in the field of waste management and environmental restoration.

Q: What are the limitations of this study?

A: The limitations of this study include the synthesis of Nanocomposite ZnO/N-CNDS using a limited number of precursors and doping agents, the characterization of the photocatalyst and RHB material after the degradation process was limited to a few physical and chemical properties, and the study was limited to the degradation of RHB under UV radiation.

Q: What are the potential applications of this study?

A: The potential applications of this study include the development of green technology in managing industrial waste, especially in the textile sector, and the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration.

Q: What are the future directions of this study?

A: The future directions of this study include the development of new photocatalysts with improved stability and reactivity, the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration, and the development of green technology in managing industrial waste, especially in the textile sector.

Q: What are the benefits of using Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst?

A: The benefits of using Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst include its high charge transfer efficiency, stability, and reactivity, which make it an effective material for the degradation of RHB under UV radiation.

Q: What are the challenges of using Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst?

A: The challenges of using Nanocomposite ZnO/N-Doped Carbon Nanodots as a photocatalyst include its synthesis, which requires a controlled environment and specific precursors and doping agents, and its characterization, which requires specialized equipment and techniques.

Q: What are the future prospects of this study?

A: The future prospects of this study include the development of new photocatalysts with improved stability and reactivity, the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration, and the development of green technology in managing industrial waste, especially in the textile sector.

Q: What are the implications of this study for the textile industry?

A: The implications of this study for the textile industry include the potential to develop green technology in managing industrial waste, especially in the textile sector, and the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration.

Q: What are the implications of this study for the environment?

A: The implications of this study for the environment include the potential to reduce pollution and environmental degradation caused by the release of liquid waste containing RHB, and the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration.

Q: What are the implications of this study for the development of new materials and technologies?

A: The implications of this study for the development of new materials and technologies include the potential to develop new photocatalysts with improved stability and reactivity, and the exploration of the use of Nanocomposite ZnO/N-CNDS in other applications in the field of waste management and environmental restoration.