**5. PENQ: MoS2 nanosystems for Hydrogen production using water**

Lately, PENQ is also used for the production of hydrogen using MoS2 as a cocatalyst from water. This novel composite system is fully characterized using XRD, Raman spectroscopy, HRTEM, X-ray photoelectron spectroscopy and UV-vis. Here, the role of MoS2 for the enhancement of PENQ activity was demonstrated effectively towards the water splitting for the faith of hydrogen. Also, the role of MoS2 (cocatalyst) and TEOA (sacrificial agent) loading effect for the donation of electron was also demonstrated. Precisely, MoS2 is more effective than Pt as a cocatalyst when combined on PENQ for water splitting.

## **6. Conclusions**

In nutshell, the novel organic PENQ is a very suitable candidate in the race of inorganic semiconductor photocatalysts. PENQ is also showed good agreement in photocatalytical activity towards the degradation of other complex dyes which confirms its activity. The nanosystems is used for the H2S splitting experiments to get hydrogen using UV-visible light. Highest hydrogen i.e. 36,456 μmol/h/g is seen in absence of cocatalyst. These results give a solid evidence that it can be used with other inorganic nanomaterials to produce hydrogen. It is noteworthy that other hybrid nanosystems with other semiconductor oxide can be synthesized with the present technique. As like PENQ other organic semiconductors may be useful for the construction of novel composite systems. Also, these systems are might have other photocatalytic applications like dye degradation, hydrogen generation and solar cell applications.

## **Acknowledgements**

Authors of the present chapter are thankful to the Principal of H. V. Desai College for continuous encouragement. Dr. V. U. Pandit is also thankful to Savitribai Phule Pune University's (SPPU) Internal Quality Assurance Cell (IQAC) for 'Aspire Research Mentorship Grant' (No. 18TEC001239). Authors are also thanking to Shri. Kiritbhai Shah (Chairman) and Shri. Hemantbhai Maniar (Secretary), 'The Poona Gujarati Kelwani Mandal' (PGKM) for fruitful discussions.

## **Conflict of interest**

Not applicable.

*Organic Semiconductor for Hydrogen Production DOI: http://dx.doi.org/10.5772/intechopen.107008*
