@article {47066,
	title = {Durable metalloporphyrin 2D-polymer for photocatalytic hydrogen and oxygen evolution from river and sea waters},
	journal = {ChemCatChem},
	volume = {13},
	year = {2021},
	month = {APR},
	pages = {1717-1721},
	type = {Article},
	abstract = {<p>It is highly imaginary that the outcome of a combination of two complementary resources leads to answer an alarming global issue. One such possible example is the solar seawater splitting for {\textquoteleft}clean fuel{\textquoteright} H-2 generation. Since the catalytic activity and stability of the photocatalysts are substantially challenged in seawater, the design of an efficient and stable photocatalyst is highly desirable. Herein, we demonstrate the solar seawater splitting by a two-dimensional polymer catalyst derived from metalloporphyrin bearing multi-hydroxyl groups. A bimetallic (Co and Ni) porphyrin 2D-polymer exhibits excellent long-term durability of 15 cycles of H-2 and O-2 generation in 200 days from pure water without a considerable decrease in efficiency. Detailed studies using river and seawaters also show the reliable performance of the catalyst over repeated cycles. Here the deactivation modes of catalytic activity have been nullified by the layered metalloporphyrin polymer structure through stable pi-pi stacking, signifying the molecular design of 2D-polymer photocatalyst.</p>
},
	keywords = {2D-polymer, Photocatalyst, porphyrin, Self-assembly, water splitting},
	issn = {1867-3880},
	doi = {10.1002/cctc.202002039, Early Access Date = FEB 2021},
	author = {Ranjeesh, Kayaramkodath Chandran and George, Leena and Maibam, Ashakiran and Krishnamurty, Sailaja and Babu, Sukumaran Santhosh}
}
@article {47759,
	title = {Facile fabrication of nano silver phosphate on B-doped g-C3N4: an excellent p-n heterojunction photocatalyst towards water oxidation and Cr (VI) reduction},
	journal = {Journal of Alloys and Compounds},
	volume = {898},
	year = {2022},
	month = {MAR},
	pages = {162853},
	type = {Article},
	abstract = {A photostable Ag3PO4/BCN type-II p-n heterojunction has been demonstrated by loading nano Ag3PO4 on B-doped g-C3N4 nanosheet (BCN). The photocatalysts were successfully characterized by various physicochemical techniques and their photocatalytic activities were tested towards the water oxidation reaction to produce oxygen and Cr (VI) reduction under visible light. The HRTEM confirms Ag3PO4 with a particle size of 15 nm has been deposited on BCN to construct a p-n heterojunction. The BCNS-50 absorbs more visible light in the solar spectrum as compared to other catalyst, demonstrating the ability to generate 587 mu mol h(-1)g(-1) O-2 and reduces 98\% of 20 ppm Cr (VI) solution in 1 h. The lower PL intensity as well as lower arc value in case of BCNS-50 suggests the maximum e-h separation and lower charge transfer resistance across the semiconductor/electrolyte interface. The BCN sheet provides a compact heterojunction where the oxidation peak of Ag3PO4 decreases gradually and disappear in case of BCNS-50 suggesting the enhance stability of Ag3PO4 in the heterojunction. BCNS-50 could able to produce -139 and 3087.5 mu A photocurrent both in cathodic and anodic direction which is approximately 7 and 2.4 folds higher as compared to nano Ag3PO4. The generation of photocurrent in both cathodic and anodic direction confirms the formation of p-n heterojunction which further supported by Mott-Schottky analysis. Furthermore the construction of the p-n heterojunction is verified via Mott-Schottky study. DFT calculation explains the contribution of various atomic orbital of Ag3PO4 and BCN towards the formation of hybrid orbital in the heterojunction and the path for charge delocalization between them. This work may provide a limelight and alternative pathway for enhanced photocatalytic performance on construction of the p-n heterojunction in a simple way. (C) 2021 Elsevier B.V. All rights reserved.},
	keywords = {Cr (VI) reduction, Density functional theory, Interfacial zone, p-n heterojunction, Photocatalyst, Water oxidation},
	issn = {0925-8388},
	doi = {10.1016/j.jallcom.2021.162853},
	author = {Sahoo, Mitarani and Babu, Pradeepta and Singh, Chandrodai Pratap and Krishnamurty, Sailaja and Parida, Kulamani}
}
