Qualification: 
MSc, BSc
deepumohanan@ay.amrita.edu

Deepu Mohanan currently serves as Research Analyst at Amrita Center for Advanced Research in Ayurveda, School of Ayurveda, Amritapuri.  He is currently operating ICP-MS and LCMS/MS QTOF instruments.

Educational Qualification

  • 2014: M. Sc. Chemistry
    Amrita School of Arts and Sciences,
    Amrita Vishwa Vidyapeetham, Amritapuri, Kollam.
  • 2012: B. Sc. Chemistry
    Union Christian College, Aluva,
    MG University, Kottayam

Research Experience

  • Research Assistant in Chemistry and Testing Lab at Central Coir Research Institute (CCRI) Kalavoor, Alappuzha, Kerala. (November 2017- May 2018)
  • Research Assistant in Material Science and Technology Division at CSIR- National Institute for Interdisciplinary Science and Technology (NIIST), Industrial Estate P O, Pappanamcode, Thiruvananthapuram, Kerala (January 2015- September 2017).
  • Project Internship as a part for the fulfillment of MSc at CSIR- Central Electrochemical Research Institute (CECRI), Karaikkudy, Tamil Nadu (January 2014- June 2014)

Work Experience

  • Quality Analyst in Analytical Laboratory at CARe Keralam, KINFRA Park, Koratty, Thrissur, Kerala. (October 2018- November 2019).
  • Chemist in AVT Natural Products Limited, Vazhakkulam, Aluva, Ernakulam, Kerala (August 2014- January 2015)

Conferences

  • Attended the short course on Polymer Science & Indo-Japan Joint Symposium 2017 conducted at Thiruvananthapuram, Kerala, India.
  • Participated and presented a poster in International Conference on Soft Materials (ICSM) 2016, conducted at Jaipur, Rajasthan, India.
  • Attended the Polymer Conference for Young Researchers (PCYR-15) 2015, conducted at Thiruvananthapuram, Kerala, India.

Publications

Publication Type: Journal Article

Year of Publication Title

2019

Deepu Mohanan, “Cucurbit[7]uril Encapsulated Dye-Sensitized Enhanced Solar Photocatalysis using Positively Charged Sheet-like Anatase TiO2 Mesocrystals”, Applied Surface Science, vol. 488, pp. 911 - 920, 2019.[Abstract]


Recent progress in the field of advanced oxidation process (AOP) has triggered the use of surface engineered visible light active TiO2 as a competent photocatalyst material in solar photocatalysis. Herein, we adopted host-guest inclusion complexation for the site-directed immobilization of a model cationic dye, Rhodamine B (RhB) on to the surface of oxygen-rich positively charged TiO2, resulting in rapid mineralization of the dye pollutant under solar irradiation. Relatively recent macrocyclic host, cucurbit[7]uril (CB7) is used as the host for the formation of inclusion complex with RhB. In this study, solar photocatalysis of dye encapsulated system results in 97% mineralization of dye molecules within 10 min with an excellent kinetic rate of 351 × 10−3 min−1. Here, the formation of CB7-RhB inclusion complex enables direct anchoring of encapsulated dye molecules through carboxylic (-COOH) groups of RhB, which in turn facilitate heterogeneous electron transfer resulting in instantaneous and direct cleavage of the chromophore. The binding of CB7 encapsulated RhB to microwave-assisted sonochemically synthesized TiO2 (MST) surface via monodentate ester-like linkage was established by XPS and FT-IR analysis. Gas chromatography (GC) and high-resolution mass spectrometry (HR-MS) substantiate the complete mineralization of RhB and the intactness of CB7 molecular structure after photodegradation, confirming the reusability of CB7/MST as an efficient and economically viable photocatalytic system. Encapsulation of pollutant dye to CB7 host proves to be an excellent approach to facilitate the photoelectron transfer to the photocatalyst and faster mineralization of dye molecules under solar irradiation. Thus, our approach would be a feasible solution for environment-friendly remediation of dye pollutants.

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